CN107340262B - Hand-held organic matter detection terminal - Google Patents
Hand-held organic matter detection terminal Download PDFInfo
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- CN107340262B CN107340262B CN201710196293.9A CN201710196293A CN107340262B CN 107340262 B CN107340262 B CN 107340262B CN 201710196293 A CN201710196293 A CN 201710196293A CN 107340262 B CN107340262 B CN 107340262B
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- 238000001514 detection method Methods 0.000 title claims abstract description 251
- 239000005416 organic matter Substances 0.000 title claims abstract description 96
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 109
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 230000001681 protective effect Effects 0.000 claims description 40
- 238000002955 isolation Methods 0.000 claims description 37
- 230000005540 biological transmission Effects 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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Abstract
The invention relates to an organic matter detection sensor and a detection method thereof, wherein the organic matter detection sensor comprises a light source (1) capable of emitting ultraviolet rays and a detection assembly, and is characterized in that: the detection assembly comprises a detection pipe (2) which can be penetrated by ultraviolet rays emitted by the light source (1), and water can pass through the detection pipe (2); a detection group ultraviolet receiver (3) for detecting the intensity of the ultraviolet rays emitted from the light source (1) and penetrating the detection tube (2); the detection group ultraviolet receiver (3) is connected with the circuit board (4), and the circuit board (4) is used for calculating the content of organic matters in water passing through the detection pipe (2) according to the ultraviolet intensity received by the detection group ultraviolet receiver (3). Compared with the prior art, the invention has the advantages that: can effectively detect the content of organic matters in water, has few parts and simple structure, and can be made into detection parts with smaller volume and lower cost.
Description
Technical Field
The invention relates to an organic matter detection device, in particular to a handheld organic matter detection terminal and a detection method thereof, which are used for detecting the total content of organic matters in water.
Background
At present, the detection of the organic matter content mainly depends on a spectrophotometer, and the working principle is as follows: the total content of organic matters is indirectly represented by the absorbance of ultraviolet rays with the wavelength of 254 nanometers, after the ultraviolet rays with the wavelength of 254 nanometers penetrate through water, the organic matters in the water absorb partial ultraviolet rays, the higher the concentration of the organic matters is, the higher the intensity of ultraviolet ray absorption is, and therefore, the absorbance of the ultraviolet rays corresponds to the content of the organic matters. Different organic matters have different absorption intensities aiming at different wavelengths of ultraviolet rays, and the content of different types of organic matters in the water can be roughly analyzed by scanning the absorption intensities of the ultraviolet rays with different wavelengths. The measurement of the total content, i.e. the comprehensive index of the content of different organic matters, is mainly reflected on ultraviolet rays with the wavelength of 254 nanometers.
However, the spectrophotometer itself is an instrument, which is very expensive and bulky, and above all, it has a certain obstacle to the use of ordinary people.
Disclosure of Invention
The invention aims to solve the primary technical problem of providing a handheld organic matter detection sensor which is convenient to carry, small in size, low in cost and strong in applicability.
The invention further aims to provide a detection method of the handheld machine object detection terminal.
The technical scheme adopted by the invention for solving the above-mentioned primary technical problems is as follows: the utility model provides a hand-held type organic matter detects sensor, includes organic matter and detects the sensor, establishes the housing outside organic matter detects the sensor with the cover, wherein, organic matter detect the sensor including can sending ultraviolet light source, and with light source complex can detect the determine module of aquatic organic matter content, and this determine module includes
A detection tube which can be penetrated by ultraviolet rays emitted from the light source and through which water can pass;
a detection group ultraviolet receiver for detecting the intensity of the ultraviolet rays emitted from the light source and penetrating the detection tube;
the circuit board is used for calculating the content of organic matters in water in the detection pipe according to the intensity of ultraviolet rays received by the detection group ultraviolet ray receivers;
the outer housing is provided with a display screen which is connected with the circuit board and is used for displaying the content of organic matters in the water to be detected in real time; and the outer housing is provided with a water inlet and a water outlet which are respectively communicated with the two ends of the detection tube.
In order to improve the detection accuracy, the organic matter sensor also comprises a comparison component, the comparison component comprises a comparison group ultraviolet receiver which can detect the intensity of ultraviolet rays directly emitted from the light source, the comparison group ultraviolet receiver is also connected with a circuit board, and the circuit board calculates the content of organic matters in water in the detection pipe according to the ultraviolet intensity received by the detection group ultraviolet receiver and the ultraviolet intensity received by the comparison group ultraviolet receiver.
In the above structure, the control group ultraviolet receiver receives ultraviolet rays directly emitted from the light source, and the control module has another structure including:
a control tube which can be penetrated by the ultraviolet rays emitted by the light source, wherein the interior of the control tube is vacuum or provided with air or pure water;
a control group ultraviolet receiver for detecting the intensity of the ultraviolet rays emitted from the light source and having passed through the control tube;
the comparison group ultraviolet receiver is also connected with the circuit board, and the circuit board calculates the content of organic matters in the water passing through the detection pipe according to the ultraviolet intensity received by the detection group ultraviolet receiver and the ultraviolet intensity received by the comparison group ultraviolet receiver.
The comparison component and the detection component can be arranged on the same side of the light source, can also be symmetrically arranged on two opposite sides of the light source, and can also be positioned on different sides outside the light source and respectively form an included angle of 180 degrees between two connecting lines after being connected with the light source.
The organic matter detection sensor further comprises a shell, wherein the detection assembly is arranged in the shell: a light source accommodating cavity or a light source accommodating hole allowing a light source to pass through is formed in the shell, and the light source is arranged in the light source accommodating cavity or arranged in the light source accommodating hole in a penetrating manner; a detection tube accommodating cavity communicated with the light source accommodating cavity or a light source accommodating hole allowing the light source to pass through is further formed in the shell, and the detection tube is arranged in the detection tube accommodating cavity; the detection group ultraviolet receiver is arranged in the shell and is opposite to the detection tube.
The light source is sleeved with the isolation shading protective sleeve and then arranged in the light source accommodating cavity of the shell or in the light source accommodating hole in a penetrating manner; the isolation shading protective sleeve is provided with a detection light transmitting hole; the ultraviolet rays emitted by the light source penetrate through the detection tube to reach the detection group ultraviolet ray receiver after passing through the detection light transmitting hole. The isolation shading protective sleeve is used for isolating the light source and preventing the shell from aging caused by the irradiation of ultraviolet rays emitted by the light source. Through set up at the isolation shading protective sheath and detect the light trap, can make the light emission angle between light source and the ultraviolet receiver of detection group less to reduce the uncertainty of light because refraction and reflection cause in the data of detection in the data transfer process.
And the shell is connected with a water inlet joint and a water outlet joint which are respectively communicated with two ends of the detection pipe.
And the parts of the water inlet joint and the water outlet joint, which are connected with the two ends of the detection pipe, are provided with sealing rings.
And the detection group ultraviolet receiver is fixed on the circuit board and then positioned in the detection light channel.
And the improvement is that the comparison component is also arranged in the shell, wherein a better proposal of the comparison component is as follows:
the comparison component comprises a comparison group ultraviolet receiver which can detect the intensity of ultraviolet rays directly emitted from the light source, the comparison group ultraviolet receiver is also connected with the circuit board, and the circuit board calculates the content of organic matters in water passing through the detection pipe according to the intensity of the ultraviolet rays received by the detection group ultraviolet receiver and the intensity of the ultraviolet rays received by the comparison group ultraviolet receiver;
the isolation shading protective sleeve is provided with a contrast light hole, and the contrast group ultraviolet receiver is arranged in the shell and is opposite to the contrast light hole, so that ultraviolet rays emitted by the light source directly reach the contrast group ultraviolet receiver after passing through the contrast light hole. Through set up contrast light trap at isolation shading protective sheath, can make the light emission angle between light source and the ultraviolet receiver of contrast group less to reduce the light and because refraction and the uncertainty of the detected data that the reflection caused in the data send process.
The contrast assembly and the detection assembly are arranged on the same side of the light source, and the detection light transmission hole and the contrast light transmission hole are positioned on the same side of the isolation shading protective sleeve; the shell is internally provided with a contrast light channel which is communicated with and right opposite to the contrast light hole, and the contrast group ultraviolet receiver is arranged in the contrast light channel.
The contrast assembly and the detection assembly are symmetrically arranged on two opposite sides of the light source accommodating cavity, and the detection light transmission hole and the contrast light transmission hole are symmetrically arranged on two opposite sides of the isolation shading protective sleeve; the shell is provided with a comparison group ultraviolet receiver mounting hole which is opposite to the comparison light transmitting hole, and the comparison group ultraviolet receiver is arranged in the comparison group ultraviolet receiver mounting hole.
The contrast subassembly is located the different sides of light source holding chamber outsidely with the determine module, detect the light trap with the contrast light trap sets up at the same circumference different positions of isolation shading protective sheath, and with keep apart the contained angle of 180 degrees between the same circumference central point line of shading protective sheath, be equipped with in the casing with contrast light trap intercommunication and just right contrast light passageway, contrast group ultraviolet receiver sets up in contrast light passageway.
In another preferred embodiment, the control module comprises:
a control tube which can be penetrated by the ultraviolet rays emitted by the light source, wherein the interior of the control tube is vacuum or provided with air or pure water;
a control group ultraviolet receiver for detecting the intensity of the ultraviolet rays emitted from the light source and having passed through the control tube;
the comparison group ultraviolet receiver is also connected with the circuit board, and the circuit board calculates the content of organic matters in the water passing through the detection pipe according to the ultraviolet intensity received by the detection group ultraviolet receiver and the ultraviolet intensity received by the comparison group ultraviolet receiver.
The isolation protective sleeve can be provided with a contrast light transmitting hole, and the ultraviolet rays emitted by the light source penetrate through the contrast tube to reach the contrast group ultraviolet ray receiver after passing through the contrast light transmitting hole.
At this time, the comparison component and the detection component can be arranged at the same side of the light source, and the detection light transmission hole and the comparison light transmission hole are positioned at the same side of the isolation shading protective sleeve; a contrast tube accommodating cavity communicated with the contrast light transmitting hole is formed in the shell, and the contrast tube is arranged in the contrast tube accommodating cavity; the contrast group ultraviolet receiver is arranged in the shell and is opposite to the contrast tube, so that the ultraviolet emitted by the light source passes through the contrast light hole and then penetrates through the contrast tube to reach the contrast group ultraviolet receiver.
The contrast assembly and the detection assembly can also be symmetrically arranged at two opposite sides of the light source accommodating cavity, and the detection light transmission hole and the contrast light transmission hole are symmetrically arranged at two opposite sides of the isolation shading protective sleeve; a contrast tube accommodating cavity communicated with the contrast light transmitting hole is formed in the shell, and the contrast tube is arranged in the contrast tube accommodating cavity; the contrast group ultraviolet receiver is arranged in the shell and is opposite to the contrast tube, so that the ultraviolet emitted by the light source passes through the contrast light hole and then penetrates through the contrast tube to reach the contrast group ultraviolet receiver.
The contrast assembly and the detection assembly can also be positioned at different sides outside the light source accommodating cavity, the detection light transmission hole and the contrast light transmission hole are arranged at different positions of the same circumference of the isolation shading protective sleeve, and an included angle of 180 degrees is formed between the detection light transmission hole and the central point connecting line of the same circumference of the isolation shading protective sleeve, a contrast tube accommodating cavity communicated with the contrast light transmission hole is arranged in the shell, and a contrast tube is arranged in the contrast tube accommodating cavity; the contrast group ultraviolet receiver is arranged in the shell and is opposite to the contrast tube, so that the ultraviolet emitted by the light source passes through the contrast light hole and then penetrates through the contrast tube to reach the contrast group ultraviolet receiver.
When the isolation protective sleeve is not specially provided with a contrast light transmitting hole and only provided with a detection light transmitting hole, a light guide channel which is opposite to and communicated with the detection light transmitting hole, a light splitting channel with the middle part vertical to the light guide channel and a spectroscope for uniformly dispersing ultraviolet rays in the light guide channel to two sides of the light splitting channel are arranged in the shell, and the detection tube accommodating cavity is arranged on one side of the light splitting channel; a contrast tube accommodating cavity is formed in the shell and positioned on the other side of the light splitting channel, and the contrast tube is arranged in the contrast tube accommodating cavity; the contrast group ultraviolet receiver is arranged in the shell and opposite to the contrast tube, so that ultraviolet rays emitted by the light source pass through the detection light transmitting hole and the light guide channel, enter the light splitting channel through the spectroscope and then penetrate through the contrast tube to reach the contrast group ultraviolet receiver.
The light guide channel inner wall is provided with a first isolation protective sleeve, and the light splitting channel inner wall is provided with a second isolation protective sleeve.
And a handheld grab handle is arranged on the outer housing.
The invention also includes a temperature sensor in contact with the light source for detecting the temperature of the light source.
The technical scheme adopted by the invention for solving the further technical problems is as follows:
when there is no control component, the detection method of the organic matter detection sensor is characterized in that: the method comprises the following steps:
step (1), vacuumizing a detection tube, or keeping the detection tube filled with air, or filling pure water into the detection tube, then starting a light source, recording an ultraviolet intensity value received by the ultraviolet receiver of the detection group by a circuit board, and recording the ultraviolet intensity value as a first ultraviolet intensity reference value;
preparing N parts of control water samples with known organic matter content and different organic matter content, keeping the light source on, sequentially passing the N parts of control water samples through the detection tube, sequentially recording ultraviolet intensity values received by the ultraviolet receivers of the detection group when the N parts of control water samples flow through the detection tube by using the circuit board, and recording the obtained N parts of ultraviolet intensity values as a second ultraviolet intensity reference value, a third ultraviolet intensity reference value and an … … (N + 1) th ultraviolet intensity reference value respectively, wherein N is a natural number more than or equal to 3;
step (3), obtaining a comparison table between the organic matter content in a comparison water sample and the ultraviolet intensity reference value according to the N +1 parts of ultraviolet intensity reference values obtained in the step (1) and the step (2);
and (4) keeping the light source on, enabling the water to be detected to flow through the detection tube, recording the ultraviolet intensity value received by the ultraviolet receiver of the detection group by the circuit board, recording the ultraviolet intensity value as an ultraviolet intensity detection value, and then obtaining the content of the organic matters in the water to be detected at the moment through a comparison table obtained in the query step.
As a refinement, the shell also comprises a temperature sensor which is in contact with the light source and is used for detecting the temperature of the light source;
in the step (1) and the step (2), the light source is kept turned on, then the temperature of the light source is detected in real time through the temperature sensor, and a plurality of first ultraviolet intensity reference values, a plurality of second ultraviolet intensity reference values, a plurality of third ultraviolet intensity reference values and a plurality of N +1 ultraviolet intensity reference values of … … under different temperature values of the light source are recorded; then, the step (3) obtains a comparison table between the organic matter content in a comparison water sample and the ultraviolet forced reference value of the light source at different temperature values;
preferably, in the step (4), the light source is kept on, the temperature of the light source is detected in real time through the temperature sensor, and the content of the organic matters in the water to be detected at the moment is obtained through table lookup according to the current temperature value of the light source and the current ultraviolet intensity detection value.
When the casing is provided with the comparison component and the comparison ultraviolet receiver receives ultraviolet rays directly emitted from the light source, the detection method comprises the following steps:
step (1), starting the light source, recording the ultraviolet intensity value received by the ultraviolet receiver of the comparison group by the circuit board, and recording the ultraviolet intensity value as a first ultraviolet intensity reference value;
preparing N parts of control water samples with known organic matter content and different organic matter content, keeping the light source on, sequentially passing the N parts of control water samples through the detection tube, sequentially recording ultraviolet intensity values received by the ultraviolet receivers of the detection group when the N parts of control water samples flow through the detection tube by using the circuit board, and recording the obtained N parts of ultraviolet intensity values as a second ultraviolet intensity reference value, a third ultraviolet intensity reference value and an … … (N + 1) th ultraviolet intensity reference value respectively, wherein N is a natural number more than or equal to 3;
step (3), obtaining a comparison table between the organic matter content in a comparison water sample and the ultraviolet intensity reference value according to the N ultraviolet intensity reference values obtained in the step (2);
and (4) keeping the light source on, enabling water to be detected to flow through the detection tube, recording the ultraviolet intensity value received by the ultraviolet receivers of the detection group by the circuit board, recording the ultraviolet intensity value as an ultraviolet intensity detection value, recording the ultraviolet intensity value received by the ultraviolet receivers of the comparison group, recording the ultraviolet intensity value as a temporary ultraviolet intensity reference value, dividing the temporary ultraviolet intensity reference value by the first ultraviolet intensity reference value to obtain a light source intensity attenuation ratio, dividing the ultraviolet intensity detection value by the light source intensity attenuation ratio to obtain an ultraviolet intensity search value, and then obtaining the content of the organic matters in the water to be detected at the moment by using the ultraviolet intensity search value through a comparison table obtained in the query step.
When the shell is provided with the comparison component and the comparison ultraviolet receiver receives the ultraviolet emitted from the light source and penetrating through the comparison tube, the detection method comprises the following steps:
step (1), vacuumizing the contrast tube, or keeping the contrast tube filled with air, or filling purified water into the contrast tube, starting the light source, recording the ultraviolet intensity value received by the ultraviolet receiver of the contrast group by the circuit board, and recording the ultraviolet intensity value as a first ultraviolet intensity reference value;
preparing N parts of reference water samples with known organic matter content and different organic matter content, keeping the light source on, sequentially passing the N parts of reference water samples through the reference tube, sequentially recording ultraviolet intensity values received by an ultraviolet receiver of a reference group when the N parts of reference water samples flow through the reference tube by a circuit board, and recording the obtained N parts of ultraviolet intensity values as a second ultraviolet intensity reference value, a third ultraviolet intensity reference value and an … … (N + 1) th ultraviolet intensity reference value respectively, wherein N is a natural number more than or equal to 3;
step (3), obtaining a comparison table between the organic matter content in a comparison water sample and the ultraviolet intensity reference value according to the N ultraviolet intensity reference values obtained in the step (2);
step (4), keeping the light source on, vacuumizing the contrast tube, or keeping the contrast tube filled with air, or filling pure water into the contrast tube; and (3) allowing the water to be detected to flow through the detection tube, recording the ultraviolet intensity value received by the ultraviolet receiver of the detection group by the circuit board, recording the ultraviolet intensity value as an ultraviolet intensity detection value, recording the ultraviolet intensity value received by the ultraviolet receiver of the comparison group, recording the ultraviolet intensity value as a temporary ultraviolet intensity reference value, dividing the temporary ultraviolet intensity reference value by the first ultraviolet intensity reference value to obtain a light source intensity attenuation ratio, dividing the ultraviolet intensity detection value by the light source intensity attenuation ratio to obtain an ultraviolet intensity search value, and then obtaining the organic matter content in the water to be detected at the moment by using the ultraviolet intensity search value and inquiring the comparison table obtained in the step (3).
Similarly, the two detection methods further comprise a temperature sensor which is in contact with the light source and is used for detecting the temperature of the light source;
in the step (1) and the step (2), the light source is kept turned on, then the temperature of the light source is detected in real time through the temperature sensor (11), and a plurality of first ultraviolet intensity reference values, a plurality of second ultraviolet intensity reference values, a plurality of third ultraviolet intensity reference values and … … a plurality of N +1 ultraviolet intensity reference values of the light source under different temperature values are recorded; then, the step (3) obtains a comparison table between the organic matter content in a comparison water sample and the ultraviolet forced reference value of the light source at different temperature values;
preferably, in the step (4), the light source is kept on, the temperature of the light source is detected in real time through the temperature sensor, and the content of the organic matters in the water to be detected at the moment is obtained through table lookup according to the current temperature value of the light source and the current ultraviolet intensity detection value.
Compared with the prior art, the invention has the advantages that: the device can effectively detect the content of organic matters in water, and has the advantages of few parts, simple structure, convenient carrying, small volume, low cost and strong applicability.
Drawings
Fig. 1 is a schematic structural diagram of a handheld organic detection terminal according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of an organic matter detection sensor according to a first embodiment of the present invention;
FIG. 3 is a perspective cross-sectional view of an organic matter detecting sensor according to an embodiment of the present invention;
FIG. 4 is an exploded perspective view of an organic detection sensor according to an embodiment of the present invention;
FIG. 5 is an exploded perspective view of an alternative perspective of the organic detection sensor in accordance with one embodiment of the present invention;
fig. 6 is a schematic perspective view of an organic matter detection sensor according to a second embodiment of the present invention;
FIG. 7 is a sectional view of an organic matter detecting sensor according to a second embodiment of the present invention;
fig. 8 is a sectional view of an organic matter detecting sensor according to a third embodiment of the present invention;
fig. 9 is a sectional view of an organic matter detecting sensor in a fifth embodiment of the present invention;
fig. 10 is a sectional view of an organic matter detecting sensor in a sixth embodiment of the invention;
fig. 11 is a schematic perspective view of an organic matter detection sensor according to a seventh embodiment of the present invention;
fig. 12 is a perspective sectional view of an organic matter detecting sensor according to a seventh embodiment of the present invention;
fig. 13 is a schematic perspective view of an organic matter detection sensor according to an eighth embodiment of the present invention;
fig. 14 is a perspective sectional view of an organic matter detecting sensor according to an eighth embodiment of the present invention;
fig. 15 is a perspective cross-sectional view of an organic matter detecting sensor in a tenth embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Example one
The hand-held organic matter detecting terminal shown in fig. 1 includes an organic matter detecting sensor and an outer casing 12 covering the organic matter detecting sensor.
The organic matter detection sensor in this embodiment is shown in fig. 2 to 5, and includes a light source 1 capable of emitting ultraviolet rays, a detection component capable of detecting the content of organic matters in water, which is matched with the light source 1, and a comparison component used for being matched with the detection component; wherein the detection assembly comprises
A detecting tube 2 which can be penetrated by the ultraviolet rays emitted from the light source 1, and water can pass through the detecting tube 2;
a detection group ultraviolet receiver 3 for detecting the intensity of the ultraviolet rays emitted from the light source 1 and having passed through the detection tube 2;
the comparison component comprises:
a contrast tube 6 which can be penetrated by the ultraviolet rays emitted by the light source 1, wherein the contrast tube 6 is internally vacuumized or provided with air or pure water;
a control group ultraviolet receiver 5 for detecting the intensity of the ultraviolet rays emitted from the light source 1 and having passed through the control tube 6;
the detection group ultraviolet receiver 3 and the comparison group ultraviolet receiver 5 are both connected with the circuit board 4, and the circuit board 4 calculates the content of organic matters in the water passing through the detection tube 2 according to the ultraviolet intensity received by the detection group ultraviolet receiver 3 and the ultraviolet intensity received by the comparison group ultraviolet receiver 5.
The outer casing 12 is provided with a display screen 13 which is connected with the circuit board 4 and is used for displaying the content of organic matters in the water to be detected in real time; the outer casing 12 is provided with a water inlet 12a and a water outlet 12b which are respectively communicated with two ends of the detection pipe 2; in addition, a hand grip 12c is provided on the outer casing 12.
In this embodiment, the organic matter detection sensor includes a housing 7 assembled by a first housing 7a and a second housing 7b, a light source accommodating hole allowing a light source to pass through is formed in the middle of the housing 7, and the light source 1 is inserted into the light source accommodating hole; a detection tube accommodating cavity communicated with the light source accommodating hole is further formed in the first shell 7a, and the detection tube 2 is arranged in the detection tube accommodating cavity; the detection group ultraviolet receiver is arranged in the first shell 7a and is opposite to the detection tube 2. A contrast tube accommodating cavity communicated with the light source accommodating hole is formed in the second shell 7b, and the contrast tube 6 is arranged in the contrast tube accommodating cavity; the control group ultraviolet receiver 5 is disposed in the second housing 7b and opposed to the control tube 6.
An isolation shading protective sleeve 8 is sleeved outside the light source 1, and the light source 1 is sleeved with the isolation shading protective sleeve 8 and then penetrates through a light source accommodating hole of the shell 7; the isolation shading protective sleeve 8 is provided with a detection light transmission hole 81; the ultraviolet rays emitted by the light source 1 pass through the detection light transmitting hole 81 and then penetrate through the detection tube 2 to reach the detection group ultraviolet receiver 3. The isolation shading protective sleeve 8 is also provided with a contrast light hole 82; the ultraviolet rays emitted from the light source 1 pass through the control light transmitting hole 82 and then penetrate through the control tube 6 to reach the control group ultraviolet receiver 5.
The first housing 7a is connected with a water inlet connector 71 and a water outlet connector 72 which are respectively communicated with two ends of the detection tube 2, and sealing rings 73 are arranged at the connecting parts of the water inlet connector 71 and the water outlet connector 72 and the two ends of the detection tube 2.
The circuit board 4 may be fixed on the first casing 7a or the second casing 7b, in this embodiment, the circuit board 4 is fixed on the first casing 7a, the comparison group ultraviolet receiver 5 is installed on a side plate, the side plate is fixed on the second casing 7b, and the output end of the comparison group ultraviolet receiver 5 is connected with the circuit board 4 through a wire.
A detection light channel 74 communicated with the detection tube accommodating cavity is arranged in the first shell 7a, and the detection group ultraviolet receiver 3 is fixed on the circuit board 4 and then positioned in the detection light channel 74; a contrast light channel 75 communicated with the contrast tube accommodating cavity is arranged in the second shell 7b, and the contrast group ultraviolet receiver 5 is fixed on the side plate and then positioned in the contrast light channel 75.
In this example, the contrast component and the detection component are symmetrically arranged on two opposite sides of the light source accommodating hole, namely: the contrast assembly and the detection assembly are symmetrically arranged; the detection light transmission holes 81 and the comparison light transmission holes 82 are symmetrically arranged at two opposite sides of the isolation shading protective sleeve 8; the advantage of this arrangement is that the ultraviolet rays picked up by the detection group and the ultraviolet rays picked up by the comparison group come from the same circumferential position of the light source 1, so the original light intensity difference of the ultraviolet rays picked up by the two groups is very small; the disadvantages are that: however, if the light source is radially offset after installation, a large deviation of the detection data obtained by the comparison assembly and the detection assembly may result.
The detection method of the handheld organic matter detection terminal in the embodiment comprises the following steps:
step (1), vacuumizing a contrast tube 6, or keeping the contrast tube 6 full of air, or filling pure water into the contrast tube 6, starting a light source 1, recording the ultraviolet intensity value received by an ultraviolet receiver 5 of the contrast group by a circuit board 4, and recording the ultraviolet intensity value as a first ultraviolet intensity reference value;
step (2), preparing N parts of reference water samples with known organic matter content and different organic matter content, keeping the light source 1 on, then respectively and sequentially passing the N parts of reference water samples through the reference tube 6, sequentially recording ultraviolet intensity values received by the ultraviolet receiver 5 of the reference group when the N parts of reference water samples flow through the reference tube 6 by the circuit board 4, and respectively recording the obtained N parts of ultraviolet intensity values as a second ultraviolet intensity reference value, a third ultraviolet intensity reference value and an … … (N + 1) th ultraviolet intensity reference value, wherein N is a natural number more than or equal to 3;
step (3), obtaining a comparison table between the organic matter content in a comparison water sample and the ultraviolet intensity reference value according to the N ultraviolet intensity reference values obtained in the step (2);
step (4), keeping the light source 1 on, vacuumizing the comparison tube 6, or keeping the comparison tube 6 filled with air, or filling pure water into the comparison tube 6; and (2) allowing the water to be detected to flow through the detection tube 2, recording the ultraviolet intensity value received by the ultraviolet receiver 3 of the detection group at this time by the circuit board 4, recording the ultraviolet intensity value as an ultraviolet intensity detection value, recording the ultraviolet intensity value received by the ultraviolet receiver 5 of the comparison group at the same time, recording the ultraviolet intensity value as a temporary ultraviolet intensity reference value, dividing the temporary ultraviolet intensity reference value by the first ultraviolet intensity reference value to obtain a light source intensity attenuation proportion, dividing the ultraviolet intensity detection value by the light source intensity attenuation proportion to obtain an ultraviolet intensity search value, and then obtaining the content of the organic matters in the water to be detected at this time by querying the comparison table obtained in the step (3) by adopting the ultraviolet intensity search value.
In the above detection method, the main interference factor is the variation of the light source, and the variation of the light source is mainly due to the temperature, and the temperature of the light source gradually increases as the service time of the light source increases; because the ultraviolet intensity in the ultraviolet lamp characteristic will be strengthened with the temperature becoming higher, in order to further improve the precision of detection, also include the temperature sensor 11 used for detecting the temperature of said light source 1 in contact with said light source 1 in the body 7; in the steps (1) and (2), the light source 1 is kept turned on, then the temperature of the light source 1 is detected in real time through the temperature sensor 11, and a plurality of first ultraviolet intensity reference values, a plurality of second ultraviolet intensity reference values, a plurality of third ultraviolet intensity reference values and … …, a plurality of N +1 ultraviolet intensity reference values of the light source (1) at different temperature values are recorded; then, the step (3) obtains a comparison table between the organic matter content in a comparison water sample and the ultraviolet forced reference value of the light source at different temperature values; and finally, in the step (4), the light source (1) is kept on, the temperature of the light source (1) is detected in real time through the temperature sensor (11), and the organic matter content in the water to be detected at the moment is obtained through table lookup according to the current temperature value of the light source (1) and the current ultraviolet intensity detection value.
Example two
Different from the first embodiment, the structure of the organic matter sensor is that the organic matter detection sensor in the present embodiment is shown in fig. 6 and 7, and includes a light source 1 capable of emitting ultraviolet rays, and a detection component which is matched with the light source 1 and is capable of detecting the content of organic matters in water, and the detection component includes
A detecting tube 2 which can be penetrated by the ultraviolet rays emitted from the light source 1, and water can pass through the detecting tube 2;
a detection group ultraviolet receiver 3 for detecting the intensity of the ultraviolet rays emitted from the light source 1 and having passed through the detection tube 2;
the detection group ultraviolet receiver 3 is connected with the circuit board 4, and the circuit board 4 calculates the content of organic matters in water passing through the detection tube 2 according to the ultraviolet intensity received by the detection group ultraviolet receiver 3.
In this embodiment, the organic matter detection sensor is the same as the first embodiment, and includes a housing 7 assembled by a first housing 7a and a second housing 7b, a light source accommodating hole allowing a light source to pass through is formed in the middle of the housing 7, and the light source 1 is inserted into the light source accommodating hole; a detection tube accommodating cavity communicated with the light source accommodating hole is further formed in the first shell 7a, and the detection tube 2 is arranged in the detection tube accommodating cavity; the detection group ultraviolet receiver is arranged in the first shell 7a and is opposite to the detection tube 2.
An isolation shading protective sleeve 8 is sleeved outside the light source 1, and the light source 1 is sleeved with the isolation shading protective sleeve 8 and then penetrates through a light source accommodating hole of the shell 7; the isolation shading protective sleeve 8 is provided with a detection light transmission hole 81; the ultraviolet rays emitted by the light source 1 pass through the detection light transmitting hole 81 and then penetrate through the detection tube 2 to reach the detection group ultraviolet receiver 3.
The first housing 7a is connected to a water inlet joint 71 and a water outlet joint 72 which are respectively connected to both ends of the detection tube 2.
The circuit board 4 may be fixed to the first housing 7a or the second housing 7b, and in this embodiment, the circuit board 4 is fixed to the first housing 7 a.
The detection method of the handheld organic matter detection terminal in the embodiment comprises the following steps:
step (1), vacuumizing a detection tube 2, or keeping the detection tube 2 filled with air, or filling pure water into the detection tube 2, then starting a light source 1, recording the ultraviolet intensity value received by an ultraviolet receiver 3 of the detection group by a circuit board 4, and recording the ultraviolet intensity value as a first ultraviolet intensity reference value;
step (2), preparing N parts of reference water samples with known organic matter content and different organic matter content, keeping the light source 1 on, then respectively and sequentially passing the N parts of reference water samples through the detection tube 2, sequentially recording ultraviolet intensity values received by the ultraviolet receivers 3 of the detection group when the N parts of reference water samples flow through the detection tube 2 by the circuit board 4, and respectively recording the obtained N parts of ultraviolet intensity values as a second ultraviolet intensity reference value, a third ultraviolet intensity reference value and an … … (N + 1) th ultraviolet intensity reference value, wherein N is a natural number more than or equal to 3;
step (3), obtaining a comparison table between the organic matter content in a comparison water sample and the ultraviolet intensity reference value according to the N +1 parts of ultraviolet intensity reference values obtained in the step (1) and the step (2);
and (4) keeping the light source 1 on, enabling water to be detected to flow through the detection tube 2, recording the ultraviolet intensity value received by the ultraviolet receiver 3 of the detection group by the circuit board 4, recording the ultraviolet intensity value as an ultraviolet intensity detection value, and then obtaining the content of the organic matters in the water to be detected at the moment by inquiring the comparison table obtained in the step (3).
EXAMPLE III
Different from the first embodiment, the structure of the organic matter sensor is that the comparison module and the detection module in the organic matter sensor are disposed on the same side of the light source 1, the detection light transmission hole 81 and the comparison light transmission hole 82 are located on the same side of the isolation and light-shielding protective cover 8, and the internal structure of the organic matter sensor is shown in fig. 8.
In this embodiment, the advantage of the control assembly and the detection assembly being on the same side is that when the position of the ultraviolet lamp is shifted radially, the detection assembly and the control assembly take less ultraviolet intensity deviation; the disadvantages are that: because the intensity of the light emitted by the ultraviolet lamp at different axial positions may have a certain deviation, the light intensity of the ultraviolet lamp in the axial direction needs to be consistent in this embodiment.
The detection method of the handheld organic matter detection terminal in this embodiment is the same as that in the first embodiment.
Example four
The difference with the first embodiment is the structure of organic matter sensor, and the contrast subassembly and the detection subassembly are located the different sides outside the light source holding chamber in the organic matter sensor, detect light hole 81 with contrast light hole 82 sets up in the same outer circumference different positions of isolation shading protective sheath 8, and with keep apart the contained angle that becomes non-180 degrees between the same circumference central point line of shading protective sheath 8, the contained angle in this embodiment is 60 degrees.
The detection method of the handheld machine object detection terminal in the embodiment is the same as that in the first embodiment.
EXAMPLE five
Different from the first embodiment, the structure of the organic sensor is that the comparison component of the organic sensor only includes the comparison group ultraviolet receiver 5, and no comparison tube is provided, and the comparison group ultraviolet receiver 5 is directly arranged in the comparison light channel 75, and the internal structure is shown in fig. 9. The ultraviolet rays emitted from the light source 1 directly reach the control group ultraviolet receiver 5 through the control light transmission hole 82 along the control light path 75.
The detection method of the handheld organic matter detection terminal in the embodiment comprises the following steps:
step (1), starting the light source 1, recording the ultraviolet intensity value received by the ultraviolet receiver 5 of the comparison group by the circuit board 4, and recording the ultraviolet intensity value as a first ultraviolet intensity reference value;
step (2), preparing N parts of reference water samples with known organic matter content and different organic matter content, keeping the light source 1 on, then respectively and sequentially passing the N parts of reference water samples through the detection tube 2, sequentially recording ultraviolet intensity values received by the ultraviolet receivers 3 of the detection group when the N parts of reference water samples flow through the detection tube 2 by the circuit board 4, and respectively recording the obtained N parts of ultraviolet intensity values as a second ultraviolet intensity reference value, a third ultraviolet intensity reference value and an … … (N + 1) th ultraviolet intensity reference value, wherein N is a natural number more than or equal to 3;
step (3), obtaining a comparison table between the organic matter content in a comparison water sample and the ultraviolet intensity reference value according to the N ultraviolet intensity reference values obtained in the step (2);
and (4) keeping the light source 1 on, enabling water to be detected to flow through the detection tube 2, recording the ultraviolet intensity value received by the ultraviolet receiver 3 of the detection group by the circuit board 4, recording the ultraviolet intensity value as an ultraviolet intensity detection value, recording the ultraviolet intensity value received by the ultraviolet receiver 5 of the comparison group, recording the ultraviolet intensity value as a temporary ultraviolet intensity reference value, dividing the temporary ultraviolet intensity reference value by the first ultraviolet intensity reference value to obtain a light source intensity attenuation ratio, dividing the ultraviolet intensity detection value by the light source intensity attenuation ratio to obtain an ultraviolet intensity search value, and then obtaining the content of the organic matters in the water to be detected by inquiring the comparison table obtained in the step (3) by adopting the ultraviolet intensity search value.
EXAMPLE six
The difference from the fifth embodiment is the structure of the organic matter sensor, the comparison component and the detection component in the organic matter sensor are arranged on the same side of the light source, the external configuration of the shell is the same as that of the second embodiment, and the internal structure is shown in fig. 10.
The detection method of the handheld organic matter detection terminal in the embodiment is the same as that in the fifth embodiment.
EXAMPLE seven
The difference from the fifth embodiment is the structure of the organic matter sensor, the housing 7 in the organic matter sensor is an integral piece, the comparison component and the detection component are located at different sides outside the light source accommodating cavity, the detection light transmission hole 81 and the comparison light transmission hole 82 are arranged at different positions of the same outer circumference of the isolation and shading protective sleeve 8, and form an included angle of not 180 degrees with the connection line of the central points of the same circumference of the isolation and shading protective sleeve 8, the included angle in the embodiment is 60 degrees, the appearance structure of the housing refers to fig. 11, and the internal structure of the housing refers to fig. 12.
The detection method of the handheld organic matter detection terminal in the embodiment is the same as that in the fifth embodiment.
Example eight
The difference from the first embodiment is the structure of the organic matter sensor, the isolated light-shielding protective sleeve 8 in the organic matter sensor is provided with only one detection light-transmitting hole 81, the shell 7 is provided with a light guide channel 76 opposite to and communicated with the detection light-transmitting hole 81, a light splitting channel 77 with the middle part perpendicular to the light guide channel 76, and a light splitter 78 for uniformly dispersing ultraviolet rays in the light guide channel 76 to two sides of the light splitting channel 77, wherein the light splitter 78 is a triangular prism; the detection tube accommodating cavity is arranged on one side of the light splitting channel 77; a contrast tube accommodating cavity is formed in the other side of the light splitting channel 77 in the shell, and the contrast tube 6 is arranged in the contrast tube accommodating cavity; the contrast group ultraviolet receiver 5 is arranged in the shell 7 and opposite to the contrast tube 6, so that ultraviolet rays emitted by the light source 1 pass through the detection light transmitting hole 81 and the light guide channel 76, then enter the light splitting channel 77 through the light splitter 78, and then penetrate through the contrast group ultraviolet receiver 5 after passing through the contrast tube 2. The inner wall of the light guide channel 76 is provided with a first isolation protection sleeve 9, and the inner wall of the light splitting channel 77 is provided with a second isolation protection sleeve 10, as shown in fig. 13 and 14.
In this embodiment, the ultraviolet light is split by the beam splitter 78 to ensure that the original intensity of the ultraviolet light of the detection combination control group is the same.
Example nine
The difference from the eighth embodiment is the structure of the organic matter sensor, in which the comparison component is provided with only the comparison group ultraviolet receiver 5, and is not provided with the comparison tube.
Example ten
In the structure of the organic sensor different from the fifth embodiment, a light source accommodating cavity is provided in the housing of the organic sensor, the light source 1 is a small ultraviolet lamp or an LED ultraviolet lamp, and the light source 1 is integrally disposed in the light source accommodating cavity, as shown in fig. 15.
Claims (8)
1. The utility model provides a hand-held type organic matter detection terminal which characterized in that: comprises an organic matter detection sensor and an outer cover shell (12) sleeved outside the organic matter detection sensor; wherein, organic matter detection sensor includes light source (1) that can send ultraviolet, and with light source (1) complex can detect the detection subassembly of aquatic organic matter content, and this detection subassembly includes
A detection tube (2) which can be penetrated by ultraviolet rays emitted from the light source (1), and through which water can pass (2);
a detection group ultraviolet receiver (3) for detecting the intensity of the ultraviolet rays emitted from the light source (1) and penetrating the detection tube (2);
a control component which comprises a control group ultraviolet receiver (5) capable of detecting the intensity of ultraviolet rays directly emitted from the light source (1) or capable of detecting the intensity of ultraviolet rays emitted from the light source (1) and penetrating through a control tube (6); wherein the inside of the control tube (6) is vacuum or is provided with air or pure water;
the circuit board (4), the ultraviolet receiver (3) of the detection group and the ultraviolet receiver (5) of the comparison group are both connected with the circuit board (4), and the content of organic matters in water in the detection tube (2) is calculated according to the ultraviolet intensity received by the ultraviolet receiver (3) of the detection group and the ultraviolet intensity received by the ultraviolet receiver (5) of the comparison group;
the outer housing (12) is provided with a display screen (13) which is connected with the circuit board (4) and is used for displaying the content of organic matters in the water to be detected in real time; the outer casing (12) is provided with a water inlet (12a) and a water outlet (12b) which are respectively communicated with two ends of the detection pipe (2);
the organic matter detection sensor also comprises a shell (7), a light source accommodating cavity or a light source accommodating hole allowing a light source to pass through is arranged in the shell (7), and the light source (1) is arranged in the light source accommodating cavity or arranged in the light source accommodating hole in a penetrating mode; a detection tube accommodating cavity communicated with the light source accommodating cavity or the light source accommodating hole is also formed in the shell (7), and the detection tube (2) is arranged in the detection tube accommodating cavity; the detection group ultraviolet receiver (3) is arranged in the shell (7) and is opposite to the detection tube (2);
an isolation shading protective sleeve (8) is sleeved outside the light source (1), and the light source (1) is arranged in a light source accommodating cavity of the shell (7) or penetrates through a light source accommodating hole after being sleeved with the isolation shading protective sleeve (8); the isolation shading protective sleeve (8) is provided with a detection light transmitting hole (81); ultraviolet rays emitted by the light source (1) pass through the detection light transmitting holes (81) and then penetrate through the detection tube (2) to reach the detection group ultraviolet receiver (3); the isolation shading protective sleeve (8) is also provided with a contrast light transmitting hole (82), and the contrast group ultraviolet receiver (5) is arranged in the shell (7) and is opposite to the contrast light transmitting hole (82), so that ultraviolet rays emitted by the light source (1) directly reach the contrast group ultraviolet receiver (5) after passing through the contrast light transmitting hole (82) or reach the contrast group ultraviolet receiver (5) after penetrating through the contrast tube (6);
the detection method of the organic matter detection sensor comprises the following steps:
step (1), starting the light source (1), recording the ultraviolet intensity value received by the ultraviolet receiver (5) of the comparison group by the circuit board (4), and recording the ultraviolet intensity value as a first ultraviolet intensity reference value;
step (2), preparing N parts of control water samples with known organic matter content and different organic matter content, keeping the light source (1) on, then respectively and sequentially passing the N parts of control water samples through the detection tube (2), sequentially recording ultraviolet intensity values received by the ultraviolet receivers (3) of the detection group when the N parts of control water samples flow through the detection tube (2) by the circuit board (4), and respectively recording the obtained N parts of ultraviolet intensity values as a second ultraviolet intensity reference value, a third ultraviolet intensity reference value and an … … (N + 1) th ultraviolet intensity reference value, wherein N is a natural number which is more than or equal to 3;
step (3), obtaining a comparison table between the organic matter content in a comparison water sample and the ultraviolet intensity reference value according to the N ultraviolet intensity reference values obtained in the step (2);
and (4) keeping the light source (1) on, enabling water to be detected to flow through the detection tube (2), recording the ultraviolet intensity value received by the ultraviolet receiver (3) of the detection group by the circuit board (4), recording the ultraviolet intensity value as an ultraviolet intensity detection value, recording the ultraviolet intensity value received by the ultraviolet receiver (5) of the comparison group at the same time, recording the ultraviolet intensity value as a temporary ultraviolet intensity reference value, dividing the temporary ultraviolet intensity reference value by the first ultraviolet intensity reference value to obtain a light source intensity attenuation proportion, dividing the ultraviolet intensity detection value by the light source intensity attenuation proportion to obtain an ultraviolet intensity search value, and then obtaining the content of organic matters in the water to be detected at the moment by inquiring the comparison table obtained in the step (3) by adopting the ultraviolet intensity search value.
2. The hand-held organic matter detecting terminal according to claim 1, wherein: the shell (7) is connected with a water inlet connector (71) and a water outlet connector (72) which are respectively communicated with the two ends of the detection tube (2), the water inlet connector (71) is communicated with a water inlet (13a) on the outer housing, and the water outlet connector (72) is communicated with a water outlet (13b) on the outer housing.
3. The organic matter detection terminal according to claim 2, wherein: and sealing rings (73) are arranged at the positions where the water inlet joint (71) and the water outlet joint (72) are connected with the two ends of the detection pipe (2).
4. The hand-held organic matter detecting terminal according to claim 1, wherein: the circuit board (4) is fixed on the shell (7), a detection light channel (74) communicated with the detection tube accommodating cavity is arranged in the shell (7), and the detection group ultraviolet receiver (3) is fixed on the circuit board (4) and then is located in the detection light channel (74).
5. The hand-held organic matter detecting terminal according to claim 1, wherein: the contrast assembly and the detection assembly are arranged on the same side of the light source (1), and the detection light transmission hole (81) and the contrast light transmission hole (82) are positioned on the same side of the isolation shading protective sleeve (8); a contrast light channel (75) which is communicated with the contrast light transmitting hole (82) and is opposite to the contrast light transmitting hole is arranged in the shell, and the contrast group ultraviolet receiver (5) is arranged in the contrast light channel (75).
6. The hand-held organic matter detecting terminal according to claim 1, wherein: the contrast assembly and the detection assembly are symmetrically arranged on two opposite sides of the light source accommodating cavity, and the detection light transmission hole (81) and the contrast light transmission hole (82) are symmetrically arranged on two opposite sides of the isolation shading protective sleeve (8); the shell is provided with a comparison group ultraviolet receiver mounting hole which is opposite to the comparison light transmitting hole (82), and the comparison group ultraviolet receiver (5) is arranged in the comparison group ultraviolet receiver mounting hole.
7. The hand-held organic matter detecting terminal according to claim 1, wherein: the contrast subassembly is located the different sides of light source holding chamber outsidely with the determine module, detect light trap (81) with contrast light trap (82) set up and keep apart the same circumference different positions of shading protective sheath (8), and with keep apart the contained angle that becomes non-180 degrees between the same circumference central point line of shading protective sheath (8), be equipped with in the casing with contrast light trap (82) intercommunication and just right contrast light passageway (75), contrast group ultraviolet receiver (5) set up in contrast light passageway (75).
8. The hand-held organic matter detecting terminal according to claim 1, 2, 3 or 4, wherein: the temperature sensor (11) is in contact with the light source (1) and is used for detecting the temperature of the light source (1), and the temperature sensor is connected with a circuit board; in the steps (1) and (2), keeping the light source (1) on, then detecting the temperature of the light source (1) in real time through the temperature sensor (11), and recording a plurality of first ultraviolet intensity reference values, a plurality of second ultraviolet intensity reference values, a plurality of third ultraviolet intensity reference values and a plurality of N +1 ultraviolet intensity reference values … … of the light source (1) at different temperature values; then, the step (3) obtains a comparison table between the organic matter content in a comparison water sample and the ultraviolet forced reference value of the light source at different temperature values;
and finally, in the step (4), the light source (1) is kept on, the temperature of the light source (1) is detected in real time through the temperature sensor (11), and the organic matter content in the water to be detected at the moment is obtained through table lookup according to the current temperature value of the light source (1) and the current ultraviolet intensity detection value.
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| CN1884102A (en) * | 2006-07-07 | 2006-12-27 | 谢英俊 | Water-purifying apparatus |
| CN102042963A (en) * | 2010-10-14 | 2011-05-04 | 长春理工大学 | Online detector for detecting total organic carbon (TOC) in sewage with ultraviolet spectrometry method |
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