CN201788153U - Pesticide residue detector integrated with micro electronic balance - Google Patents
Pesticide residue detector integrated with micro electronic balance Download PDFInfo
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- CN201788153U CN201788153U CN2010205386443U CN201020538644U CN201788153U CN 201788153 U CN201788153 U CN 201788153U CN 2010205386443 U CN2010205386443 U CN 2010205386443U CN 201020538644 U CN201020538644 U CN 201020538644U CN 201788153 U CN201788153 U CN 201788153U
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Abstract
The utility model discloses a pesticide residue detector integrated with a micro electronic balance, including a central processing module, an input device, a display device, a power supply and a photoelectric colormetric detecting system; the input device, the display device, the photoelectric colormetric detecting system and the power supply are respectively connected with the central processing module; the pesticide residue detector also includes a micro electronic balance which includes a weighing device and a weighing sensor connected with the weighing device; and an output end of the weighing sensor is connected with the central processing module. Compared with the conventional pesticide residue detector, the utility model of simple operation and convenience in use obtains a more accurate analysis result.
Description
Technical field
The utility model belongs to the instrumental science technical field, relates to a kind of miniature electronic balance, convenient instrument for detecting pesticide residue through that uses of being integrated with.
Background technology
In agricultural cultivation processes such as fruit, vegetables, grain, spraying the chemical pesticide control disease and pest still is the requisite measure of crop safety growth course, but the excessive applications of pesticide or harvesting close in fruit that the use of phase can cause coming into the market, the vegetables and contain the residues of pesticides that exceed standard, healthy unfavorable to the eater.The residues of pesticides of serious excess can cause acute poisoning, and slighter remains of pesticide is accumulated delay in the human body midium or long term and also can be caused many chronic diseases.Therefore, the remains of pesticide of fruit and vegetable detects the problem that problem has become people's growing interest.
Detecting Pesticide in the vegetable and fruit is divided detection by quantitative and qualitative detection, and detection by quantitative only limits to laboratory analytical instrument and detects, such as chromatography of gases and liquid chromatography.The on-the-spot detection and the more qualitative detection that adopts of basic unit's detection, the method for employing has methods such as test paper, color range comparison, spectrophotometer.In detecting practice, when relating to sampling operation, need use electronic balance, take by weighing the weight of sample quality or infusion solution.The Photoelectric Detection instrument is because luminosity is saturated and the problem of optical noise error on the other hand, and certain usually photodetector system is crossed the low or too high big measuring error that all can cause to certain sensing range should be arranged.When the analyte content in the detected object was below or above certain scope, instrument just can not correctly detect.In this case, need make suitable dilution (or enriching) to sample solution usually, at this moment traditional method is by a balance or the volume sampler proportioning of taking a sample, and calculates through artificial or input robot calculator again, draws dilution ratio.Obtain the analyte content in the dilution after photoelectric instrument detects, at last again according to dilution ratio, inverse goes out the analyte content in the reagent sample.Such operation effort, loaded down with trivial details.
Summary of the invention
For addressing the above problem, the utility model provide a kind of simple to operate, easy to use, analyze the instrument for detecting pesticide residue through of integrated micro electronic balance accurately.
The utility model is that the technical scheme that its problem of solution is adopted is:
A kind of instrument for detecting pesticide residue through of integrated micro electronic balance, comprise central processing module, input media, display device, power supply and colorimetric photodetector system, described input media, display device, colorimetric photodetector system, power supply are connected with central processing module respectively, instrument for detecting pesticide residue through also comprises the miniature electronic balance, described miniature electronic balance comprises weighing device and the LOAD CELLS that is connected with weighing device, and the output terminal of described LOAD CELLS is connected with central processing module.
Preferably, described weighing device is the plane of weighing of a horizontal positioned.
Preferably, but the top of described weighing device is provided with the protective cover of folding.
Preferably, described colorimetric photodetector system comprises light source driver module, single spectrum light source, cuvette, photoelectric cell and signal processing module, described single spectrum light source and photoelectric cell are arranged at the both sides of cuvette, the input end of light source driver module is connected with central processing module, the output terminal of light source driver module is connected with the single spectrum light source, and photronic output terminal links to each other with central processing module by signal processing module.Further preferably, described signal processing module comprises the amplifying circuit and the A/D change-over circuit of series connection, and the input end of described amplifying circuit is connected with photronic output terminal, and the output terminal of A/D change-over circuit links to each other with central processing module.Described single spectrum light source is the monochromatic LED light source, and described light source driver module is a constant-current source circuit.Described optoelectronic induction device is a photoelectric cell.But the top of described single spectrum light source, cuvette, optoelectronic induction device is provided with the shielding cover of folding.
The beneficial effects of the utility model are: the utility model is integrated into the miniature electronic balance on the detector, this miniature electronic balance obtains weight signal by LOAD CELLS, this weight signal directly is sent to central processing module and handles, handling procedure by the configuration central processing module, just artificial calculating a large amount of in the prior art and writing task can be changed by central processing module and finish, this can improve the inaccurate problem that artificial calculating and record are brought greatly, in addition, detector can further show measured weight signal and analysis result thereof by display device, this guarantees that the user can observe and analyzing and processing easily, compare with traditional instrument for detecting pesticide residue through, its operation is simpler, use convenient, analysis result is more accurate.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is the block diagram of system of the present utility model;
Fig. 2 is the one-piece construction synoptic diagram of a kind of embodiment of the utility model.
Embodiment
See figures.1.and.2, the instrument for detecting pesticide residue through of a kind of integrated micro electronic balance of the present utility model, comprise central processing module 1, input media 2, display device 3, power supply 4 and colorimetric photodetector system 5, described input media 2, display device 3, colorimetric photodetector system 5, power supply 4 are connected with central processing module 1 respectively.Wherein, power supply 4 is used to system that work capacity is provided, input media 2 can adopt keyboard, touch-screen etc., display device 3 can adopt LCD display, liquid crystal display etc., central processing module 1 can adopt single-chip microcomputer etc., the user can carry out the setting of each parameter by input media 2 during work, and the display device 3 of detector can show Chinese character, character 3 etc., utilizes that this display device 3 can be pointed out operational order, resulting various parameters and analysis result carry out good demonstration.
The use of electronic balance is necessary in the detection, improvement of the present utility model is a miniature electronic balance 6 is integrated in the detector, described miniature electronic balance 6 comprises weighing device 7 and the LOAD CELLS 8 that is connected with weighing device 7, the output terminal of described LOAD CELLS 8 is connected with central processing module 1, as preferred embodiment, as shown in Figure 2, described weighing device 7 plane of weighing that is a horizontal positioned.This miniature electronic balance 6 obtains the weight signal of 7 support article of weighing device (various specimen, reagent etc.) by LOAD CELLS 8, this weight signal directly is sent to central processing module 1 and handles, handling procedure by configuration central processing module 1, just artificial calculating a large amount of in the prior art and writing task can be changed by central processing module 1 and finish, thereby obtain corresponding sample concentration, ratio or the like parameter.
In order to protect miniature electronic balance 6 not damaged by the external force effect, but the utility model is preferable over the protective cover 9 that the top of described weighing device 7 is provided with folding, shown in embodiment among Fig. 2.When electronic balance 6 did not use, protective cover 9 was put down, and weighing device 7 is covered, and guaranteed that it is not destroyed by unexpected impulsive force.
Utilize the measuring principle of instrument for detecting pesticide residue through of the present utility model to be: by taking detected sample (as vegetable and fruit etc.) through pre-treatment with leach the sample solution that obtains after handling and inject cuvette, the cuvette that to be fond of sample solution then is placed on the detector in the relevant position, system detects initial light absorption value, and then adding has the detectable that detected agricultural chemicals is had the specificity chromogenic reaction in cuvette, through after the chromogenic reaction of certain hour, measure final light absorption value again, and then obtain residues of pesticides content.
When analyzing, single spectrum light source 11 sends incident light with certain light intensity under the control of central processing module 1, the cuvette 12 that vertical directive has transparent material to make, the light intensity that sees through cuvette 12 depends on the extinction ability of the solution in the cuvette 12, when the detection liquid that contains farm chemical ingredients and special-purpose chromogenic reagent react in cuvette 12, solution colour can change, thereby influence sees through transmitted intensity cuvette 12 and that received by optoelectronic induction device 13, the signal that optoelectronic induction device 13 is exported is input in the central processing module 1 through behind the signal processing module 14 again, central processing module 1 detects the output result, provides the pesticide concentration result who detects in the solution according to nominal data.Needed various weight signals all are measured by the miniature electronic balance in the said process.
In addition, but the utility model is preferable over the shielding cover 17 that the top of single spectrum light source 11, cuvette 12, optoelectronic induction device 13 is provided with folding, shown in the embodiment among Fig. 2.When carrying out the colorimetric photoelectricity test, shielding cover 17 is pulled on, make the light path both sides of cuvette 12 be subjected to the interference minimizing of extraneous light, guarantee that its analysis result is accurate.
Claims (8)
1. the instrument for detecting pesticide residue through of an integrated micro electronic balance, comprise central processing module (1), input media (2), display device (3), power supply (4) and colorimetric photodetector system (5), described input media (2), display device (3), colorimetric photodetector system (5), power supply (4) is connected with central processing module (1) respectively, it is characterized in that also comprising miniature electronic balance (6), described miniature electronic balance (6) comprises weighing device (7) and the LOAD CELLS (8) that is connected with weighing device (7), and the output terminal of described LOAD CELLS (8) is connected with central processing module (1).
2. the instrument for detecting pesticide residue through of a kind of integrated micro electronic balance according to claim 1 is characterized in that described weighing device (7) is the plane of weighing of a horizontal positioned.
3. the instrument for detecting pesticide residue through of a kind of integrated micro electronic balance according to claim 1 and 2, it is characterized in that described weighing device (7) but the top be provided with the protective cover (9) of folding.
4. the instrument for detecting pesticide residue through of a kind of integrated micro electronic balance according to claim 1, it is characterized in that described colorimetric photodetector system (5) comprises light source driver module (10), single spectrum light source (11), cuvette (12), optoelectronic induction device (13) and signal processing module (14), described single spectrum light source (11) and optoelectronic induction device (13) are arranged at the both sides of cuvette (12), the input end of light source driver module (10) is connected with central processing module (1), the output terminal of light source driver module (10) is connected with single spectrum light source (11), and the output terminal of optoelectronic induction device (13) links to each other with central processing module (1) by signal processing module (14).
5. the instrument for detecting pesticide residue through of a kind of integrated micro electronic balance according to claim 4, it is characterized in that described signal processing module (14) comprises the amplifying circuit (15) and the A/D change-over circuit (16) of series connection, the input end of described amplifying circuit (15) is connected with the output terminal of optoelectronic induction device (13), and the output terminal of A/D change-over circuit (16) links to each other with central processing module (1).
6. the instrument for detecting pesticide residue through of a kind of integrated micro electronic balance according to claim 4 is characterized in that described single spectrum light source (11) is the monochromatic LED light source, and described light source driver module (10) is a constant-current source circuit.
7. the instrument for detecting pesticide residue through of a kind of integrated micro electronic balance according to claim 4 is characterized in that described optoelectronic induction device (13) is a photoelectric cell.
8. the instrument for detecting pesticide residue through of a kind of integrated micro electronic balance according to claim 4, it is characterized in that described single spectrum light source (11), cuvette (12), optoelectronic induction device (13) but the top be provided with the shielding cover (17) of folding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205386443U CN201788153U (en) | 2010-09-21 | 2010-09-21 | Pesticide residue detector integrated with micro electronic balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205386443U CN201788153U (en) | 2010-09-21 | 2010-09-21 | Pesticide residue detector integrated with micro electronic balance |
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| Publication Number | Publication Date |
|---|---|
| CN201788153U true CN201788153U (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205386443U Expired - Fee Related CN201788153U (en) | 2010-09-21 | 2010-09-21 | Pesticide residue detector integrated with micro electronic balance |
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| Country | Link |
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| CN (1) | CN201788153U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360054A (en) * | 2014-09-04 | 2015-02-18 | 浙江托普仪器有限公司 | Domestic fruit and vegetable pesticide residue detection instrument |
| CN104964974A (en) * | 2015-07-27 | 2015-10-07 | 张银虎 | Intelligent pesticide residue detector |
| CN105554075A (en) * | 2015-12-08 | 2016-05-04 | 成都慧农信息技术有限公司 | Pesticide residual data automatic pushing system and method |
| CN106442874A (en) * | 2016-08-29 | 2017-02-22 | 北京农业信息技术研究中心 | Pesticide residue detection device and method |
| CN114894983A (en) * | 2022-05-05 | 2022-08-12 | 云南省农业科学院质量标准与检测技术研究所 | Portable vegetable agricultural detector |
-
2010
- 2010-09-21 CN CN2010205386443U patent/CN201788153U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360054A (en) * | 2014-09-04 | 2015-02-18 | 浙江托普仪器有限公司 | Domestic fruit and vegetable pesticide residue detection instrument |
| CN104360054B (en) * | 2014-09-04 | 2016-07-06 | 浙江托普仪器有限公司 | A kind of household garden stuff pesticide residue detecting instrument |
| CN104964974A (en) * | 2015-07-27 | 2015-10-07 | 张银虎 | Intelligent pesticide residue detector |
| CN104964974B (en) * | 2015-07-27 | 2017-10-20 | 张银虎 | Intelligent instrument for detecting pesticide residue through |
| CN105554075A (en) * | 2015-12-08 | 2016-05-04 | 成都慧农信息技术有限公司 | Pesticide residual data automatic pushing system and method |
| CN106442874A (en) * | 2016-08-29 | 2017-02-22 | 北京农业信息技术研究中心 | Pesticide residue detection device and method |
| CN114894983A (en) * | 2022-05-05 | 2022-08-12 | 云南省农业科学院质量标准与检测技术研究所 | Portable vegetable agricultural detector |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20120921 |