CN203745379U - Handheld test paper reflectometer - Google Patents
Handheld test paper reflectometer Download PDFInfo
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- CN203745379U CN203745379U CN201320751020.3U CN201320751020U CN203745379U CN 203745379 U CN203745379 U CN 203745379U CN 201320751020 U CN201320751020 U CN 201320751020U CN 203745379 U CN203745379 U CN 203745379U
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- test paper
- reflectometer
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- detection
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- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Abstract
The utility model discloses a handheld test paper reflectometer which comprises test paper and a reflectometer for detecting reflected light information of the test paper and implementing photoelectric conversion and visual display. By combining the reflectometer and the test paper, the handheld test paper reflectometer disclosed by the utility model is convenient to carry and simple to operate, and capable of realizing on-site, rapid and quantitative determination on a substance to be detected; the reflectometer is widely applicable to the fields of food safety inspection, environmental pollution monitoring and soil analysis.
Description
Technical field
The utility model relates to a kind of detecting instrument of test paper reflection-type, relates in particular to a kind of hand-held test paper reflectometer.
Background technology
Detection paper is widely used in the fields such as food safety detection, environmental pollution monitoring, soil analysis, in prior art, detection paper is mainly to utilize visual colorimetric determination block-regulations, the relation changing by different measured matter content concns and colour developing test paper shade, produce standard color comparison card, test by the mode of visual colorimetric determination, although easy to use, quick, but can only do qualitative, sxemiquantitative test, cannot meet the needs of quantitative detection.
And the instrument that existing spectrophotometer etc. quantitatively detect, complicated structure, needs professional to operate, and is not suitable for and carries, detects anywhere or anytime.
Therefore, need a kind of test paper simple in structure, easy to carry reflection detecting instrument, realize and detecting anywhere or anytime.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of hand-held test paper reflectometer, utilize test paper reflected light principle, can carry out easily the concentration of field quick detection determinand, i.e. chemical reagent on Test paper and measured matter reaction solution, the colour developing depth is relevant to measured matter content, be radiated at the test paper reflection that developed the color of light on test paper, intensity of reflected light is relevant to the depth of test paper color development, by detection of reflected light intensity, to detect measured matter content.
Hand-held test paper reflectometer of the present utility model, comprises test paper and for detection of the reflected light information of described test paper and carry out opto-electronic conversion and the reflectometer showing directly perceived.
Further, described test paper is provided with colour developing district and contrast clear area;
Further, described reflectometer comprises detecting device, signal processing unit and display module; Described detecting device comprise be provided with detect the spherical light tight shell in hole and be fixedly installed in described spherical light tight shell for the inner chamber via spherical light tight shell to detecting the light source of hole transmitting light beam and for detection of test paper reflected light signal and be converted to the photoelectric sensor of electric signal; The output terminal of described photoelectric sensor is electrically connected on the input end of signal processing unit; The output terminal of described signal processing unit is electrically connected on display module;
Further, described light source just arranges detecting hole;
Further, described light source is White LED light emitting diode;
Further, described photoelectric sensor is silicon photocell;
Further, described signal processing unit comprises signal pre-processing circuit and processor, and the output terminal of signal pre-processing circuit is electrically connected with the input end of processor; Described signal pre-processing circuit comprises amplifier and/or wave filter and/or A/D converter;
Further, when described detecting device also comprises for detection of test paper reflected light, place the test paper conveying trough of corresponding test paper; Spherical light tight shell is fixed in the corresponding hole of detecting of described test paper conveying trough.
The beneficial effects of the utility model are: hand-held detection paper instrument of the present utility model is by reflectometer and Test paper coupling, easy to carry, simple to operate, realize scene to test substance, fast, quantitatively detect, can be widely used in the fields such as food safety detection, environmental pollution monitoring, soil analysis.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is detection schematic diagram of the present utility model;
Fig. 2 is structural representation of the present utility model.
Embodiment
Fig. 1 is detection schematic diagram of the present utility model, Fig. 2 is structural representation of the present utility model, as shown in the figure: the hand-held test paper reflectometer of the present embodiment, comprise test paper 1 and for detection of the reflected light information of described test paper 1 and carry out opto-electronic conversion and the reflectometer showing directly perceived, utilize test paper 1 reflected light principle, can carry out easily the concentration of field quick detection determinand, be chemical reagent and the measured matter reaction solution on Test paper 1, the colour developing depth is relevant to measured matter content, being radiated at light on test paper 1 test paper 1 that developed the color reflects, intensity of reflected light is relevant to the depth that test paper 1 develops the color, by detection of reflected light intensity, to detect measured matter content, the hand-held detection paper instrument of the present embodiment is by reflectometer and test paper 1 coupling, easy to carry, simple to operate, realize the scene to test substance, fast, quantitatively detect, can be widely used in food safety detection, environmental pollution monitoring, the fields such as soil analysis.
In the present embodiment, described test paper 1 is provided with colour developing district 2 and contrast clear area 3, for eliminating interference, improves measuring accuracy.
In the present embodiment, described reflectometer comprises detecting device 4, signal processing unit 5 and display module 6; Described detecting device 4 comprise be provided with detect the spherical light tight shell 8 in hole 7 and be fixedly installed in described spherical light tight shell 8 for the inner chamber via spherical light tight shell 8 to detecting that the light source 9 of light beam is launched in hole 7 and for detection of test paper 1 reflected light signal and be converted to the photoelectric sensor 10 of electric signal; The output terminal of described photoelectric sensor 10 is electrically connected on the input end of signal processing unit 5; The output terminal of described signal processing unit 5 is electrically connected on display module 6, the electric signal that signal processing unit 5 sends photoelectric sensor 10 amplify and/or filtering and/or A/D conversion after, through calculating reflectance analysis processing, calculate testing result, on display module 6, show; Adopted unique spherical housing structure, made photoelectric sensor 10 be fixed on all effectively reflected light signals of Test paper 1 of energy of any position of spherical light tight shell 8, installation site is limited less, is convenient to manufacture.
In the present embodiment, described light source 9 just arranges detecting hole 7, makes light beam vertical sand shooting that light source 9 sends to test paper 1, can improve the intensity of reflected light of test paper 1, is beneficial to guarantee accuracy of detection.
In the present embodiment, described light source 9 is White LED light emitting diode, and operating voltage is low, and working current is little; Luminous uniform and stable, fast response time, shock resistance and anti-seismic performance are good, and reliability is high, and the life-span is long.
In the present embodiment, described photoelectric sensor 10 is silicon photocell, and the electromotive force and the electric current that while being subject to illumination, produce are larger, and usability is good, higher for test paper 1 reflected light inspection time difference method.
In the present embodiment, described signal processing unit 5 comprises signal pre-processing circuit and processor, and the output terminal of signal pre-processing circuit is electrically connected with the input end of processor; Described signal pre-processing circuit comprises amplifier and/or wave filter and/or A/D converter.
In the present embodiment, described detecting device 4 places the test paper conveying trough 11 of corresponding test paper 1 while also comprising for detection of test paper 1 reflected light; Spherical light tight shell 8 is fixed in the corresponding hole 7 of detecting of described test paper conveying trough 11.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (6)
1. a hand-held test paper reflectometer, is characterized in that: comprise test paper and for detection of the reflected light information of described test paper and carry out opto-electronic conversion and the reflectometer showing directly perceived; Described reflectometer comprises detecting device, signal processing unit and display module; Described detecting device comprise be provided with detect the spherical light tight shell in hole and be fixedly installed in described spherical light tight shell for the inner chamber via spherical light tight shell to detecting the light source of hole transmitting light beam and for detection of test paper reflected light signal and be converted to the photoelectric sensor of electric signal; The output terminal of described photoelectric sensor is electrically connected on the input end of signal processing unit; The output terminal of described signal processing unit is electrically connected on display module; Described signal processing unit comprises signal pre-processing circuit and processor, and the output terminal of signal pre-processing circuit is electrically connected with the input end of processor; Described signal pre-processing circuit comprises amplifier and/or wave filter and/or A/D converter.
2. hand-held test paper reflectometer according to claim 1, is characterized in that: described test paper is provided with colour developing district and contrast clear area.
3. hand-held test paper reflectometer according to claim 2, is characterized in that: described light source just arranges detecting hole.
4. hand-held test paper reflectometer according to claim 3, is characterized in that: described light source is White LED light emitting diode.
5. hand-held test paper reflectometer according to claim 4, is characterized in that: described photoelectric sensor is silicon photocell.
6. according to the hand-held test paper reflectometer described in claim 3 to 5 any one, it is characterized in that: described detecting device places the test paper conveying trough of corresponding test paper while also comprising for detection of test paper reflected light; Spherical light tight shell is fixed in the corresponding hole of detecting of described test paper conveying trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751020.3U CN203745379U (en) | 2013-11-25 | 2013-11-25 | Handheld test paper reflectometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751020.3U CN203745379U (en) | 2013-11-25 | 2013-11-25 | Handheld test paper reflectometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203745379U true CN203745379U (en) | 2014-07-30 |
Family
ID=51345164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320751020.3U Expired - Fee Related CN203745379U (en) | 2013-11-25 | 2013-11-25 | Handheld test paper reflectometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203745379U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645820A (en) * | 2018-05-15 | 2018-10-12 | 长春比特医疗仪器有限公司 | A kind of method that paper substrate measures blood hemoglobin concentration |
| CN109490226A (en) * | 2018-09-19 | 2019-03-19 | 北京农业智能装备技术研究中心 | Nitrous oxide measuring device and its measurement method in a kind of soil crack |
-
2013
- 2013-11-25 CN CN201320751020.3U patent/CN203745379U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645820A (en) * | 2018-05-15 | 2018-10-12 | 长春比特医疗仪器有限公司 | A kind of method that paper substrate measures blood hemoglobin concentration |
| CN109490226A (en) * | 2018-09-19 | 2019-03-19 | 北京农业智能装备技术研究中心 | Nitrous oxide measuring device and its measurement method in a kind of soil crack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20171125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |