CN201788147U - Optical-fiber probe type soil nutrient tester - Google Patents
Optical-fiber probe type soil nutrient tester Download PDFInfo
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- CN201788147U CN201788147U CN 201020511329 CN201020511329U CN201788147U CN 201788147 U CN201788147 U CN 201788147U CN 201020511329 CN201020511329 CN 201020511329 CN 201020511329 U CN201020511329 U CN 201020511329U CN 201788147 U CN201788147 U CN 201788147U
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- soil nutrient
- tester
- fiber probe
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model provides an optical-fiber probe type soil nutrient tester, which adopts a transmission-type deuterium lamp and a convergent tungsten lamp as light sources of ultraviolet light and visible light, utilizes concave-surface flat-field holographic grating as an optical splitter, adopts a 1024-pixel diode linear array N-channel metal oxide semiconductor (NMOS) detector to realize full-wave band light spectrum scanning of 200nm to 800nm, utilizes an optical-path-adjustable immersion-type optical fiber probe as a measuring component to be directly inserted into sample liquor to be tested so as to test relative soil nutrient contents, and adopts an advanced micro device (AMD) processor to realize communication and process signals. The optical-fiber probe type soil nutrient tester is small in volume and high in measuring precision, can complete most of tests of nonmetallic elements such as nitrogen, phosphorus, sulphur, boron (N, P, S, B) and the like in soil nutrient tests completed in laboratories under a vehicle-mounted condition, and has high test precision equivalent to precision of tests in a laboratory environment.
Description
Technical field
The utility model belongs to the soil nutrient detection range, relates in particular to a kind of fibre-optical probe formula soil nutrient tester.
Background technology
Though common raster pattern ultra-violet and visible spectrophotometer measuring accuracy is higher, because that bulky, monochromator is difficult to adapt to vehicle-mounted vibrations condition etc. is former thereby be difficult to directly use under vehicle-mounted condition.
In recent years, along with developing rapidly of photoelectric technology, spectrophotometric miniaturization, demand portable, that reach direct rig-site utilization are also increased day by day.Many research and utilization visible and near infrared spectrum technology are measured N, P and the content of organic matter in the soil non-contactly, though this method can be carried out fast measuring to soil nutrient at the scene, but need a large amount of measured datas to set up the appraising model of soil nutrient content, its test accuracy and versatility be relatively poor also have been limited it and has applied.
There is the relatively poor problem of monochromaticity of light filter based on the portable soil nutrient fast measuring instrument of optical filtering formula photoelectric colorimetry principle, is difficult to reach the spectrophotometric level of raster pattern.
Though fast, simple to operate based on electrochemical electrode method test speed, because soil liquid background complexity makes its soil nutrient test accuracy also be difficult to satisfy the measuring accuracy requirement.
The utility model content
The problem that the utility model is big at the volume that exists in the above technology or measuring accuracy is not enough, a kind of fibre-optical probe formula soil nutrient tester has been proposed, it is characterized in that, probe module is connected between light source module and the spectral module by optical fiber, described spectral module links to each other with detection module, described detection module links to each other with signal processing module, and described signal processing module links to each other with display module;
Power module links to each other with described light source module;
Control module links to each other with described power module, light source module and signal processing module respectively.
Described light source module comprises transmission-type deuterium lamp and convergence type tungsten lamp.
Described probe module is the adjustable immersion fibre-optical probe of light path.
Volume of the present invention is little, and the measuring accuracy height can be finished the soil nutrient test of finishing in most of laboratory under vehicle-mounted condition, and the test of measuring accuracy and laboratory environment is suitable.
Description of drawings
Below in conjunction with accompanying drawing the utility model is elaborated:
Fig. 1 is that the structure of fibre-optical probe formula soil nutrient tester is formed.
Embodiment
As shown in Figure 1, fibre-optical probe formula soil nutrient tester is made up of power module, light source module, probe module, spectral module, signal processing module, control module and display module.
Power module is made up of 220V Alternating Current Power Supply and 12V lithium ion battery, is responsible for utilizing alternating current or accumulator to power for tester to instrument.
Light source module comprises transmission-type deuterium lamp and convergence type tungsten lamp, can independently control between two kinds of lamps, also can use together, thereby launch the light of 200-800nm.
The light of light source module emission by fiber optic conduction to probe module.
Probe module is made up of the adjustable immersion fibre-optical probe of light path, utilize optical fiber that light source module and spectral module are organically combined, can be used as measurement component and directly insert the mensuration of soil nutrient content of being correlated with in the sample solution to be measured, thereby solution to be measured need be poured and pour out cuvette into, and need the loaded down with trivial details step of cleaning when having avoided traditional spectrophotometer to utilize cuvette to measure.
Spectral module is made up of concave surface flat field holographic grating, realizes synchronous beam split and does not influence resolution as optical splitter.
Detection module is responsible for the light signal after the beam split is detected and be converted into electric signal, this module is by diode bans (NMOS) detecting device (S3904-1024Q of 1024 pixels, Japan shore pine image company limited) constitutes, make up all band spectral scan that can realize 200-800nm with concave surface flat field holographic grating.
Electric signal through detection module transfers to signal processing module, and the data after the processing show that by display module display module adopts the color touch screen of 320 * 240 dot matrix to realize as man-machine interface.
Control module and signal processing module all adopt AMD processor (AMD Athlon XP 1700, U.S. AMD) and I/O interface, be responsible for the switching of control power supply and light source, and the various raw informations of detection module collection are analyzed and handled.
Claims (3)
1. fibre-optical probe formula soil nutrient tester, it is characterized in that probe module is connected between light source module and the spectral module by optical fiber, described spectral module links to each other with detection module, described detection module links to each other with signal processing module, and described signal processing module links to each other with display module;
Power module links to each other with described light source module;
Control module links to each other with described power module, light source module and signal processing module respectively.
2. tester as claimed in claim 1 is characterized in that, described light source module comprises transmission-type deuterium lamp and convergence type tungsten lamp.
3. tester as claimed in claim 1 is characterized in that, described probe module is the adjustable immersion fibre-optical probe of light path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020511329 CN201788147U (en) | 2010-08-31 | 2010-08-31 | Optical-fiber probe type soil nutrient tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020511329 CN201788147U (en) | 2010-08-31 | 2010-08-31 | Optical-fiber probe type soil nutrient tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201788147U true CN201788147U (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020511329 Expired - Fee Related CN201788147U (en) | 2010-08-31 | 2010-08-31 | Optical-fiber probe type soil nutrient tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201788147U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680413A (en) * | 2012-05-25 | 2012-09-19 | 浙江大学 | Device and method for hyperspectral rapid detection on content of field soil organic matters by using panoramic annular belt |
| CN102830071A (en) * | 2012-08-13 | 2012-12-19 | 浙江大学 | Detection apparatus and method for total phosphorus content in soil |
| CN103091276A (en) * | 2011-11-03 | 2013-05-08 | 中国科学院合肥物质科学研究院 | Soil nutrient sensor |
| CN108226078A (en) * | 2018-02-11 | 2018-06-29 | 中国环境科学研究院 | The adjustable ultraviolet-visible spectrum in-situ monitoring device of light path and multi-parameter water-quality measuring method |
-
2010
- 2010-08-31 CN CN 201020511329 patent/CN201788147U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091276A (en) * | 2011-11-03 | 2013-05-08 | 中国科学院合肥物质科学研究院 | Soil nutrient sensor |
| CN103091276B (en) * | 2011-11-03 | 2015-01-21 | 中国科学院合肥物质科学研究院 | Soil nutrient sensor |
| CN102680413A (en) * | 2012-05-25 | 2012-09-19 | 浙江大学 | Device and method for hyperspectral rapid detection on content of field soil organic matters by using panoramic annular belt |
| CN102830071A (en) * | 2012-08-13 | 2012-12-19 | 浙江大学 | Detection apparatus and method for total phosphorus content in soil |
| CN102830071B (en) * | 2012-08-13 | 2015-01-21 | 浙江大学 | Detection apparatus and method for total phosphorus content in soil |
| CN108226078A (en) * | 2018-02-11 | 2018-06-29 | 中国环境科学研究院 | The adjustable ultraviolet-visible spectrum in-situ monitoring device of light path and multi-parameter water-quality measuring method |
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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: 20110406 Termination date: 20140831 |
|
| EXPY | Termination of patent right or utility model |