CN101144786B - Portable soil heavy metal analyzer - Google Patents
Portable soil heavy metal analyzer Download PDFInfo
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- CN101144786B CN101144786B CN200710175770XA CN200710175770A CN101144786B CN 101144786 B CN101144786 B CN 101144786B CN 200710175770X A CN200710175770X A CN 200710175770XA CN 200710175770 A CN200710175770 A CN 200710175770A CN 101144786 B CN101144786 B CN 101144786B
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Abstract
The invention relates to a portable soil heavy metal analytical instrument. The instrument comprises an X-ray tube, an X-ray exit window, a detector, a micro-processing computer, a GPS receiver and a power device, wherein, the micro-processing computer has a CF card slot, and the GPS receiver is inserted into the CF card slot of the micro-processing computer. During the measuring, the X-ray tube emits X-ray, to detect and receive the fluorescence generated by sample excited by the X-ray, and the micro-processing computer operates the energy spectrum analysis after being processed, in order to obtain the component and content of the specific contained elements, the GPS system arranged inside the micro-processing computer is capable of global positioning of the sampling location, and the location information and the measurement data are generated at the same time. The invention avoids the manual record and the statistical error, and the efficiency is improved by a plurality of times compared with the traditional measuring method, in addition, the substance harmful to the environment can not be generated, and the invention can quickly and harmlessly operate the heavy metal measurement to the soil in the filed in a large area.
Description
Technical field
The present invention relates to the instrument of metal ingredient and content in the soil analysis earth, be specifically related to a kind of portable soil heavy metal analyser device with sampling positioning function.
Background technology
X-ray fluorescence analysis is to be used for multielement to carry out a kind of technology qualitative, quantitative test simultaneously, has that material to different shape carries out fast, the characteristics of nondestructive analysis.In to the content of soil, constituent content analysis, adopt portable X-ray fluorescence analyzer to carry out on-the-spot test, the collection analysis result is used for the heavy metal pollution of soil situation is made assessment, has very significant advantage.
Because the x-ray fluorescence analyzer of the analysis of traditional heavy metal in soil, for example the special-purpose XRF energy spectrometer of XR306-RoHS is made up of instrument host and commercial PC, and by outside 220V mains-supplied, has limited its movability; Use above-mentioned tradition to be used for the x-ray fluorescence analyzer of the analysis of heavy metal in soil, the step of carrying out operation is need take a sample to pedotheque earlier, take back the laboratory then and carry out complicated pre-treatment,, collect gamma-spectrometric data and finally provide the composition test result at last by instrument test.In the sampling process, need be by the general geographic location and the situation of personnel's hand-kept testing location.Comprise the data in the result of a large amount of samples and geographic position when image data after, the result of statistics is because personal error can cause the untimely, not detailed and inaccurate of geographical location information, and then causing whole test result incorrect, whole statistic processes also wastes time and energy, the analysis cost height.On the other hand, the test sample result can not directly be transferred on the Geographic Information System (GIS) software, and inconvenience is directly compared on map, thereby weak effect directly perceived.
Summary of the invention
The objective of the invention is to overcome the shortcoming that present laboratory x-ray fluorescence analyzer is not suitable for on-the-spot test, and solve the shortcoming that sampling point position data and measurement result can not be integrated, a kind of portable soil heavy metal analyser device with sampling positioning function is provided, use this instrument not only can realize on-the-spot harmless fast detecting heavy metal-polluted soil constituent content, and can carry out GPS (GPS) geographic coordinate location to the sampling testing location, easily realize sample composition data and the disposable generation of position data, make heavy metal in soil analyze pointed, systemic and higher accuracy.
For achieving the above object, the present invention's following technical scheme of sampling:
A kind of portable soil heavy metal analyser, this instrument comprises X-ray tube, X ray outgoing window, detector, little processing computer, gps receiver GPS and supply unit, described X ray outgoing window is positioned at a side of described analyser, described X-ray tube and described detector are arranged side by side in described analyser and close described X ray outgoing window, the mouth of pipe of described X-ray tube is relative with described X ray outgoing window respectively with the detection mouth of described detector, the other end of described X-ray tube is connected with described supply unit, be connected with the multiple tracks circuit between the other end of described detector and the described little processing computer, described multiple tracks circuit is connected with supply unit, described little processing computer is in instrument, be positioned at the dead astern of described analyser, described little processing computer has the CF card slot, and described gps receiver inserts in the described CF card slot of little processing computer.
Also comprise stray light blocking-up mechanism in the described analyser, this mechanism is made up of the electric driving of optical gate, optical gate button and optical gate, the electric driving of described optical gate is connected between described little processing computer and the supply unit, and described optical gate button is connected the opening and closing that the back is inserted optical gate and controlled described optical gate with the electric driving of optical gate.
Described optical gate is the vertical bar shape, between the detection mouth of the mouth of pipe of described X ray outgoing window and X-ray tube, detector.
Described X ray outgoing window has interlock protection mechanism, and described interlock protection mechanism is a single-point contact-making switch structure, is shaped as circular contact, is positioned at the place ahead of described optical gate and is connected with the electric driving of described optical gate.
There is protective cover described X ray outgoing window outside, and described protective cover is connected with dismountable bayonet socket form with interlock protection mechanism.
Add absorbing sheet between described X ray outgoing window and the described optical gate, insert the fixedly slot of absorbing sheet above described analyser, described absorbing sheet is inserted in the described slot.
Described supply unit can be encapsulated in the power supply box with the multiple tracks circuit and be connected by separable high pressure resistant connector with described analyser, described power supply box inside comprises battery, the power supply conversion circuit, the high voltage adjusting shelves, ray tube power supply and multiple tracks circuit, described battery connects described power supply conversion circuit, described power supply conversion circuit connects the multiple tracks circuit respectively, the electric driving of ray tube power supply and optical gate, described ray tube power supply is connected with described X-ray tube, described high voltage adjusting shelves connect the ray tube power supply, the voltage of the high-voltage power supply of adjusting after the power supply conversion circuit, described optical gate button connects the ray tube power supply, opening and shutting off of control high-voltage power supply, described multiple tracks circuit one end connects detector and regulates needed running parameter automatically by cable, and the described multiple tracks circuit other end connects little processing computer and transmits the gamma-spectrometric data information of obtaining.
The target of described X-ray tube is a tungsten target.
Described absorbing sheet is the aluminium absorbing sheet.
A kind of portable soil heavy metal analyser is analyzed the method for heavy metal-polluted soil composition and content, this analyser comprises X-ray tube, X ray outgoing window, detector, little processing computer, gps receiver and supply unit, described X ray outgoing window is positioned at a side of described analyser, described X-ray tube and described detector are arranged side by side in described analyser and close described X ray outgoing window, the mouth of pipe of described X-ray tube is relative with described X ray outgoing window respectively with the detection mouth of described detector, the other end of described X-ray tube is connected with described supply unit, be connected with the multiple tracks circuit between the other end of described detector and the described little processing computer, described multiple tracks circuit is connected with supply unit, described little processing computer is in instrument, be positioned at the dead astern of described analyser, described little processing computer has the CF slot card, described gps receiver inserts in the described CF card slot of little processing computer, and this method may further comprise the steps:
S1: the voltage-to-ground and the filament current of the supply unit control X-ray tube that is connected with X-ray tube, the particle beams that X-ray tube produces bombards target material surface at a high speed, produces the X ray of the specific wavelength relevant with the ray tube target;
The X ray that the S2:X ray tube sends shines sample behind X ray outgoing window, the fluorescence that described sample stands to produce behind the excitation of X-rays is in same window turns back to described analyser, the detector that is arranged side by side in X-ray pipe one side receives, be detected device subsequently and convert pulse electrical signal to, the amplifier in detector amplifies moulding;
S3: the electric signal after amplifier amplifies in the detector communicates directly in the multiple tracks circuit, described multiple tracks circuit is distinguished by the energy of described signal is strong and weak, multiple tracks internal energy impulse meter record data also upload to described little processing computer, the data processing that described little processing computer docking is received forms the energy spectrometer collection of illustrative plates, analyzes and draws content and the content thereof that specifically contains element;
S4: described little processing launch computer gps receiver carries out the global location of sampling location, adds the on-site accurate geographic position information of specimen in the analysis result form automatically.
Also comprise stray light blocking-up mechanism in the described analyser in this method, this mechanism is made up of the electric driving of optical gate, optical gate button and optical gate, the electric driving of described optical gate is connected between described little processing computer and the supply unit, and described optical gate button is connected the opening and closing that the back is inserted optical gate and controlled described optical gate with the electric driving of optical gate.
Optical gate described in this method is the vertical bar shape, between the detection mouth of the mouth of pipe of described X ray outgoing window and X-ray tube, detector.
The window of X ray outgoing described in this method has interlock protection mechanism, and described interlock protection mechanism is a single-point contact-making switch structure, is shaped as circular contact, is positioned at the place ahead of described optical gate and is connected with the electric driving of described optical gate.
There is protective cover the window of X ray outgoing described in this method outside, and described protective cover is connected with dismountable bayonet socket form with interlock protection mechanism.
Add absorbing sheet between X ray outgoing window described in this method and the described optical gate, insert the fixedly slot of absorbing sheet above described analyser, described absorbing sheet is inserted in the described slot.
Supply unit described in this method can be encapsulated in the power supply box with the multiple tracks circuit and be connected by separable high pressure resistant connector with described analyser, described power supply box inside comprises battery, the power supply conversion circuit, the high voltage adjusting shelves, ray tube power supply and multiple tracks circuit, described battery connects described power supply conversion circuit, described power supply conversion circuit connects the multiple tracks circuit respectively, the electric driving of ray tube power supply and optical gate, described ray tube power supply is connected with described X-ray tube, described high voltage adjusting shelves connect the ray tube power supply, the voltage of the high-voltage power supply of adjusting after the power supply conversion circuit, described optical gate button connects the ray tube power supply, opening and shutting off of control high-voltage power supply, described multiple tracks circuit one end connects detector and regulates needed running parameter automatically by cable, and the described multiple tracks circuit other end connects little processing computer and transmits the gamma-spectrometric data information of obtaining.
The target of X-ray tube described in this method is a tungsten target, and described absorbing sheet is the aluminium absorbing sheet.
Use the present invention can be fast, the measured soil content of beary metal of reliable, harmless sample, and realize that test data and testing location generate simultaneously, avoid artificially writing down or the generation of mistake of statistics.The present invention is convenient to test data and directly is transferred on the Geographic Information System (GIS) software by increasing the GPS positioning function, strengthens effect of visualization, improves analysis efficiency.
Description of drawings
Fig. 1 is a portable soil heavy metal analyser instrument internal structural representation of the present invention.
Among the figure: 1, interlock protection mechanism; 2, absorbing sheet; 3, protective cover; 4, optical gate; 5, X-ray tube; 6, detector; 7, little processing computer; 8, optical gate control knob; 9, the electric driving of optical gate; 10, high voltage adjusting shelves; 11, multiple tracks circuit; 12, ray tube power supply; 13, power-switching circuit; 14, battery; 15, gps receiver; 16, X ray outgoing window.
Embodiment
Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
Be portable soil heavy metal analyser instrument internal structural representation of the present invention as described in Figure 1, portable soil heavy metal analyser described in the present embodiment, this instrument comprises X-ray tube 5, X ray outgoing window 16, detector 6, little processing computer 7, gps receiver 15 and supply unit, described X ray outgoing window 16 is positioned at a side of described analyser, described X-ray tube 5 is arranged side by side in described analyser with described detector 6 and close described X ray outgoing window 16, the mouth of pipe of described X-ray tube 5 is relative with described X ray outgoing window 16 respectively with the detection mouth of described detector 6, the other end of described X-ray tube 5 is connected with described supply unit, be connected with multiple tracks circuit 11 between the other end of described detector 6 and the described little processing computer 7, described multiple tracks circuit 11 is connected with supply unit, described little processing computer 7 is in instrument, be positioned at the dead astern of described analyser, described little processing computer 7 has the CF card slot, and described gps receiver 15 inserts in the described CF card slot of little processing computer 7.
Supply unit in the present embodiment can be encapsulated in the power supply box with multiple tracks circuit 11 and be connected by separable high pressure resistant connector with analyser, power supply box inside comprises battery 14, power supply conversion circuit 13, high voltage adjusting shelves 10, ray tube power supply 12 and multiple tracks circuit 11, battery 14 connects power supply conversion circuit 13, power supply conversion circuit 13 connects multiple tracks circuit 11 respectively, the electric driving 9 of ray tube power supply 12 and optical gate, ray tube power supply 12 is connected with X-ray tube 5, high voltage adjusting shelves 10 connect ray tube power supply 12, the voltage of adjusting high-voltage power supply of 13 after the power supply conversion circuit, optical gate button 8 connects ray tube power supply 12, opening and shutting off of control high-voltage power supply, multiple tracks circuit 11 1 ends connect detector 6 and regulate needed running parameter automatically by cable, and multiple tracks circuit 11 other ends connect little processing computer 7 and transmit the gamma-spectrometric data information of obtaining.Power supply box is connected design and adopts separable high pressure resistant connector with the high pressure of portable unit, be convenient to change from now on parts; The overall appearance structure style unanimity of two separating parts, internal functional unit distributes rationally, guarantees the safe and sanitary of X ray and the reliable and safety of ground connection of high-voltage power supply simultaneously.
Operation and observation test process and output result are convenient in little processing computer 7 design rears on portable unit in the present embodiment.
Also comprise stray light blocking-up mechanism in the present embodiment in the instrument, this mechanism is made up of the electric driving 9 of optical gate, optical gate button 8 and optical gate 4, the electric driving 9 of optical gate is connected between little processing computer 7 and the supply unit, and optical gate button 8 is connected the opening and closing that the back is inserted optical gate 4 and controlled optical gate 4 with the electric driving 9 of optical gate.
Optical gate 4 is the vertical bar shape in the present embodiment, between the detection mouth of the mouth of pipe of X ray outgoing window 16 and X-ray tube 5, detector 6.
X ray outgoing window has interlock protection mechanism 1 in the present embodiment; interlock protection mechanism 1 is a single-point contact-making switch structure; be shaped as circular contact; be positioned at the place ahead of optical gate 4 and be connected with the electric driving 9 of optical gate; it mainly acts on is to prevent that X ray direct projection when not carrying out surveying work from going out detection window, causes unnecessary leakage.In addition, portable instrument power is very little, and the ray emission dosage that is produced itself is just very faint, as long as effective a little shielding can guarantee thorough safety on the detection window structure.
There is protective cover 3 X ray outgoing window outside in the present embodiment; protective cover 3 is connected with dismountable bayonet socket form with interlock protection mechanism 1; the main effect of protective cover 3 is to prevent when the surface imperfection sample is measured; along ray outgoing vertical direction the leakage of scattered x-ray is arranged, in order to avoid operating personnel are caused unnecessary irradiation.
X ray outgoing window 1 is coaxial with the X ray light beam in the present embodiment, and safety light brake mechanism 1 and 4 is located between X-ray tube 5 and the detector 6.X ray sends after aluminium matter light pipe directive sample from ray tube, and no scattering X line influences measurement result.
The concrete course of work and principle of work below in conjunction with this embodiment of description of drawings.
The generation of light source is that the high-voltage power supply generating means by the high stable that is connected with X-ray tube 5 is the voltage-to-ground and the filament current of ray tube power supply 12 control X-ray tubes 5 in the present embodiment, the particle beams that X-ray tube 5 produces bombards target material surface at a high speed, produces the X ray of the specific wavelength relevant with X-ray tube 5 targets.The selection of target is mainly determined according to the essential element sequence number of the required analysis of instrument, because the different X ray of wavelength is inconsistent for the fluorescence phenomenon that excites element, the different linear system fluorescence of generation may interfere with each other or influence measurement.Concrete selection way is to search and comparison according to the numerical table of feature excitation energy, select suitable target, the present invention design the target of X-ray tube 5 selected be tungsten target, using some objectionable impurities instruction to formulate the ultimate analysis effect that detects for restriction in the electronic electric equipment all compares consistent, reason owing to the X ray energy range of tungsten target feature, when surveying the Cr element separately, need between analyser internal X-ray outgoing window 16 and optical gate 4, add 2 pairs of tungsten linear systems of A1 absorbing sheet high energy and partly make certain absorption, just resolving effect preferably can be arranged.
X ray outgoing window 16 is coaxial with the X ray light beam in the present embodiment, X ray sends after aluminium matter light pipe directive sample from ray tube 5, no scattering X line influences measurement result, X ray institute's excited fluorescent after shining sample is returned instrument through same X ray outgoing window 16, the detector 6 that is arranged side by side immediately in X-ray tube 5 one sides receives, be detected device 6 subsequently and convert pulse electrical signal on the nuclear electronics meaning to, amplifier in detector amplifies moulding, electric signal after amplifier amplifies in the detector 6 communicates directly in the multiple tracks circuit 11 through cable, multiple tracks circuit 11 is distinguished by the energy of described signal is strong and weak, multiple tracks internal energy impulse meter record data also upload to PC Control Software in little processing computer 7, this software forms the energy spectrometer collection of illustrative plates to the data processing that receives, and analyzes and draws content and the content thereof that specifically contains element.
Table 1 is the measurement report that locating information in the test calculating process of the present invention and measurement result generate simultaneously, utilize the present invention can be simultaneously atomic number, element term, main peak intensity, constituent content, time, date, longitude and the latitude in the pedotheque.
Table 1
Present embodiment adopts traditional X-ray gamma ray spectrometer principle, design is specifically designed to the portable X-ray fluorescence analyzer that the pedotheque harmful element is analyzed, on hardware configuration, add portable declining and handle computer (PDA) and global positioning satellite receiver (GPS), adopted the GPS module of CF card in the present embodiment, can insert easily in the CF card slot of little processing computer.On the x-ray fluorescence analyzer application software, add the location finding function, in the analysis result form, add the on-site accurate geographic position information of specimen automatically by software.After the integrated above function, present embodiment will possess soil harmful element composition test and write down the brand-new function of sampling position precise information simultaneously.
The present invention not only can realize pedotheque is carried out the harmless fast qualitative detection by quantitative in scene, and the also generation in the lump of the position data of sample, makes the heavy metal analysis in the pedotheque easier, and is quick.
A kind of advantage that can carry out the portable soil heavy metal analyser of sampling location global location of the present invention is: its built-in gps system can carry out the global location of sampling location, and positional information and measurement data generate simultaneously, avoided the mistake of manual record and statistics, made things convenient under the field environment field survey the on-site soil heavy metal.
Be preferred forms of the present invention more than, according to disclosure of invention, some identical, replacement schemes that those of ordinary skill in the art can expect apparently all should fall into the scope that the invention of this reality is protected.
Claims (18)
1. portable soil heavy metal analyser, it is characterized in that this instrument comprises X-ray tube (5), X ray outgoing window (16), detector (6), little processing computer (7), gps receiver (15) and supply unit, described X ray outgoing window (16) is positioned at a side of described analyser, described X-ray tube (5) is arranged side by side in described analyser with described detector (6) and close described X ray outgoing window (16), the mouth of pipe of described X-ray tube (5) is relative with described X ray outgoing window (16) respectively with the detection mouth of described detector (6), the other end of described X-ray tube (5) is connected with described supply unit, be connected with multiple tracks circuit (11) between the other end of described detector (6) and the described little processing computer (7), described multiple tracks circuit (11) is connected with supply unit, described little processing computer (7) is in instrument, be positioned at the dead astern of described analyser, described little processing computer (7) has the CF card slot, and described gps receiver (15) inserts in the described CF card slot of little processing computer (7).
2. portable soil heavy metal analyser as claimed in claim 1, it is characterized in that also comprising in the described analyser stray light blocking-up mechanism, this mechanism is made up of the electric driving of optical gate (9), optical gate button (8) and optical gate (4), the electric driving of described optical gate (9) is connected between described little processing computer (7) and the supply unit, and described optical gate button (8) is connected the opening and closing that the back is inserted optical gate (4) and controlled described optical gate (4) with the electric driving of optical gate (9).
3. portable soil heavy metal analyser as claimed in claim 2 is characterized in that described optical gate (4) for the vertical bar shape, is positioned between the detection mouth of the mouth of pipe, detector (6) of described X ray outgoing window (16) and X-ray tube (5).
4. portable soil heavy metal analyser as claimed in claim 3; it is characterized in that described X ray outgoing window has interlock protection mechanism (1); described interlock protection mechanism (1) is a single-point contact-making switch structure; be shaped as circular contact, be positioned at the place ahead of described optical gate (4) and be connected with the electric driving of described optical gate (9).
5. portable soil heavy metal analyser as claimed in claim 4 is characterized in that there is protective cover (3) described X ray outgoing window outside, and described protective cover (3) is connected with dismountable bayonet socket form with interlock protection mechanism (1).
6. portable soil heavy metal analyser as claimed in claim 3, it is characterized in that adding absorbing sheet (2) between described X ray outgoing window (16) and the described optical gate (4), insert the fixedly slot of absorbing sheet (2) above described analyser, described absorbing sheet (2) is inserted in the described slot.
7. as each described portable soil heavy metal analyser among the claim 2-6, it is characterized in that described supply unit and multiple tracks circuit (11) can be encapsulated in the power supply box is connected by separable high pressure resistant connector with described analyser, described power supply box inside comprises battery (14), power supply conversion circuit (13), high voltage adjusting shelves (10), ray tube power supply (12) and multiple tracks circuit (11), described battery (14) connects described power supply conversion circuit (13), described power supply conversion circuit (13) connects multiple tracks circuit (11) respectively, ray tube power supply (12) and the electric driving of optical gate (9), described ray tube power supply (12) is connected with described X-ray tube (5), described high voltage adjusting shelves (10) connect ray tube power supply (12), the voltage of adjusting high-voltage power supply of (13) after the power supply conversion circuit, described optical gate button (8) connects ray tube power supply (12), opening and shutting off of control high-voltage power supply, described multiple tracks circuit (11) one ends connect detector (6) and regulate needed running parameter automatically by cable, and described multiple tracks circuit (11) other end connects little processing computer (7) and transmits the gamma-spectrometric data information of obtaining.
8. portable soil heavy metal analyser as claimed in claim 1, the target that it is characterized in that described X-ray tube (5) is a tungsten target.
9. portable soil heavy metal analyser as claimed in claim 6 is characterized in that described absorbing sheet (2) is the aluminium absorbing sheet.
10. a portable soil heavy metal analyser is analyzed the method for heavy metal-polluted soil composition and content, this analyser comprises X-ray tube (5), X ray outgoing window (16), detector (6), little processing computer (7), gps receiver (15) and supply unit, described X ray outgoing window (16) is positioned at a side of described analyser, described X-ray tube (5) is arranged side by side in described analyser with described detector (6) and close described X ray outgoing window (16), the mouth of pipe of described X-ray tube (5) is relative with described X ray outgoing window (16) respectively with the detection mouth of described detector (6), the other end of described X-ray tube (5) is connected with described supply unit, be connected with multiple tracks circuit (11) between the other end of described detector (6) and the described little processing computer (7), described multiple tracks circuit (11) is connected with supply unit, described little processing computer (7) is in instrument, be positioned at the dead astern of described analyser, described little processing computer (7) has the CF card slot, described gps receiver (15) inserts in the described CF card slot of little processing computer (7), it is characterized in that this method may further comprise the steps:
S1: the voltage-to-ground and the filament current of the supply unit control X-ray tube (5) that is connected with X-ray tube (5), the particle beams that X-ray tube (5) produces bombards target material surface at a high speed, produces the X ray of the specific wavelength relevant with the ray tube target;
The X ray that S2:X ray tube (5) sends shines sample behind X ray outgoing window (16), the fluorescence that described sample stands to produce behind the excitation of X-rays turns back in the described analyser through same window (16), the detector (6) that is arranged side by side in X-ray pipe one side receives, be detected device subsequently and convert pulse electrical signal to, the amplifier in detector (6) amplifies moulding;
S3: the electric signal after the interior amplifier of detector (6) amplifies communicates directly in the multiple tracks circuit (11), described multiple tracks circuit (11) is distinguished by the energy of described signal is strong and weak, multiple tracks internal energy impulse meter record data also upload to described little processing computer (7), described little processing computer (7) forms the energy spectrometer collection of illustrative plates to the data processing that receives, and analyzes and draws content and the content thereof that specifically contains element;
S4: described little processing computer (7) starts the global location that gps receiver (15) carries out the sampling location, adds the on-site accurate geographic position information of specimen in the analysis result form automatically.
11. portable soil heavy metal analyser as claimed in claim 10 is analyzed the method for heavy metal-polluted soil composition and content, it is characterized in that also comprising in the described analyser stray light blocking-up mechanism, this mechanism is made up of the electric driving of optical gate (9), optical gate button (8) and optical gate (4), the electric driving of described optical gate (9) is connected between described little processing computer (7) and the supply unit, and described optical gate button (8) is connected the opening and closing that the back is inserted optical gate (4) and controlled described optical gate (4) with the electric driving of optical gate (9).
12. portable soil heavy metal analyser as claimed in claim 11 is analyzed the method for heavy metal-polluted soil composition and content, it is characterized in that described optical gate (4) for the vertical bar shape, be positioned between the detection mouth of the mouth of pipe, detector (6) of described X ray outgoing window (16) and X-ray tube (5).
13. portable soil heavy metal analyser as claimed in claim 12 is analyzed the method for heavy metal-polluted soil composition and content; it is characterized in that described X ray outgoing window has interlock protection mechanism (1); described interlock protection mechanism (1) is a single-point contact-making switch structure; be shaped as circular contact, be positioned at the place ahead of described optical gate (4) and be connected with the electric driving of described optical gate (9).
14. portable soil heavy metal analyser as claimed in claim 13 is analyzed the method for heavy metal-polluted soil composition and content; it is characterized in that there is protective cover (3) described X ray outgoing window outside, described protective cover (3) is connected with dismountable bayonet socket form with interlock protection mechanism (1).
15. portable soil heavy metal analyser as claimed in claim 12 is analyzed the method for heavy metal-polluted soil composition and content, it is characterized in that adding absorbing sheet (2) between described X ray outgoing window (16) and the described optical gate (4), insert the fixedly slot of absorbing sheet (2) above described analyser, described absorbing sheet (2) is inserted in the described slot.
16. analyze the method for heavy metal-polluted soil composition and content as each described portable soil heavy metal analyser among the claim 11-15, it is characterized in that described supply unit and multiple tracks circuit (11) can be encapsulated in the power supply box is connected by separable high pressure resistant connector with described analyser, described power supply box inside comprises battery (14), power supply conversion circuit (13), high voltage adjusting shelves (10), ray tube power supply (12) and multiple tracks circuit (11), described battery (14) connects described power supply conversion circuit (13), described power supply conversion circuit (13) connects multiple tracks circuit (11) respectively, ray tube power supply (12) and the electric driving of optical gate (9), described ray tube power supply (12) is connected with described X-ray tube (5), described high voltage adjusting shelves (10) connect ray tube power supply (12), the voltage of adjusting high-voltage power supply of (13) after the power supply conversion circuit, described optical gate button (8) connects ray tube power supply (12), opening and shutting off of control high-voltage power supply, described multiple tracks circuit (11) one ends connect detector (6) and regulate needed running parameter automatically by cable, and described multiple tracks circuit (11) other end connects little processing computer (7) and transmits the gamma-spectrometric data information of obtaining.
17. portable soil heavy metal analyser as claimed in claim 10 is analyzed the method for heavy metal-polluted soil composition and content, the target that it is characterized in that described X-ray tube (5) is a tungsten target.
18. portable soil heavy metal analyser as claimed in claim 15 is analyzed the method for heavy metal-polluted soil composition and content, it is characterized in that described absorbing sheet (2) is the aluminium absorbing sheet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200710175770XA CN101144786B (en) | 2007-10-11 | 2007-10-11 | Portable soil heavy metal analyzer |
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| CN200710175770XA CN101144786B (en) | 2007-10-11 | 2007-10-11 | Portable soil heavy metal analyzer |
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| CN101144786B true CN101144786B (en) | 2010-07-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101514980B (en) * | 2008-07-09 | 2013-03-27 | 中国科学院地理科学与资源研究所 | Method and device for quickly detecting heavy metal contents and spacial distribution in soil |
| CN101672809B (en) * | 2009-08-20 | 2011-08-31 | 聚光科技(杭州)股份有限公司 | Method and device for measuring metal elements in soil |
| CN102495087B (en) * | 2011-11-30 | 2013-05-08 | 河南省电力公司周口供电公司 | On-line detection apparatus and method thereof for heavy metal in organic oil |
| CN104995499A (en) * | 2012-08-31 | 2015-10-21 | D·包 | Portable metal ion detector |
| CN102967613A (en) * | 2012-12-05 | 2013-03-13 | 钢研纳克检测技术有限公司 | Rapid identifier of rare earth |
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