CN201464408U - Measuring instrument of moisture and nutrient of soil - Google Patents
Measuring instrument of moisture and nutrient of soil Download PDFInfo
- Publication number
- CN201464408U CN201464408U CN200920087680XU CN200920087680U CN201464408U CN 201464408 U CN201464408 U CN 201464408U CN 200920087680X U CN200920087680X U CN 200920087680XU CN 200920087680 U CN200920087680 U CN 200920087680U CN 201464408 U CN201464408 U CN 201464408U
- Authority
- CN
- China
- Prior art keywords
- measuring instrument
- single chip
- circuit
- soil
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model relates to a measuring instrument of moisture and nutrient of soil, comprising a soil moisture sensor (1). The measuring instrument is characterized by also comprising a plurality of ion selecting electrodes (2), a reference electrode (3), a temperature sensor (4), a preposed input circuit (5) and a single chip microcomputer circuit (6), wherein the output ends of the soil moisture sensor (1) and the temperature sensor (4) are respectively connected with an input interface of the single chip microcomputer circuit (6); the output ends of the ion selecting electrodes (2) and the reference electrode (3) are respectively connected with the input end of the preposed input circuit (5); and the output end of the preposed input circuit (5) is connected with the input interface of the single chip microcomputer circuit (6). The measuring instrument has wide testing range and higher testing accuracy; the tested result is accurate by calculation of the single chip microcomputer, the record display is fast, so the efficiency is high; and the measuring instrument has simple structure, low cost, convenient maintenance and wide application range.
Description
Technical field
The utility model relates to the soil information testing apparatus, especially a kind of soil moisture and nutrient measuring instrument.
Background technology
In the modern agricultural technology, detection to soil moisture and nutrient is particularly paid close attention to, the water cut of soil, nitrogen content, phosphorus content, potassium contents etc. need long term monitoring, this is because the shortage of water resource on the one hand, the utilization factor that improves water is particularly important, various nutrients not only need rationally be made adequate preparation in the soil not on the one hand, also need the moisture of appropriateness to participate in crops are absorbed better, but present soil moisture tester and soil nutrient measuring instrument all are to manufacture and design separately separately, the total cost of its equipment is higher, wherein the soil nutrient measuring instrument needs the soil sample of gathering is under lab finished detection mostly, troublesome poeration, length consuming time can not be finished detection at the scene.
Summary of the invention
The purpose of this utility model provides a kind of soil moisture quick, easy to use and nutrient measuring instrument tested, and can be implemented in the detection quickly and accurately of on-the-spot moisture to soil, nitrogenous, phosphorus, potassium and conventional nutrient.
Described soil moisture and nutrient measuring instrument comprise soil moisture sensor, it is characterized in that: described measuring instrument also comprises a plurality of ion-selective electrodes, contrast electrode, temperature sensor, preposition input circuit and single chip circuit, the output terminal of described soil moisture sensor, temperature sensor is connected with the input interface of single chip circuit respectively, the output terminal of ion-selective electrode and contrast electrode is connected with the input end of preposition input circuit respectively, and the output terminal of preposition input circuit is connected with the input interface of single chip circuit.Be provided with the differential amplifier of high input impedance and the output amplifier of low output impedance in the described preposition input circuit, the output terminal of ion-selective electrode and contrast electrode is connected with the in-phase input end of differential amplifier respectively, two output terminals of differential amplifier are connected with two input ends of output amplifier respectively, and the output terminal of output amplifier links to each other with the input interface of single chip circuit.Be provided with the A/D change-over circuit of soil moisture and soil nutrient measuring-signal in the described single chip circuit, also be provided with transformation transformation, temperature compensation and the linearization calculation software of soil nutrient measuring-signal.The tested pedotheque that described ion-selective electrode, contrast electrode and temperature sensor are arranged in same test cup prepares solution.
The beneficial effects of the utility model are: 1, test specification is wide, but both water cut of testing soil, but the content of nitrogen, phosphorus, potassium and other nutrients in the testing soil again, its measuring accuracy is higher; 2, after test electrode is demarcated through the laboratory, leave in the activated solution, simple to operate to on-the-spot test, test result is accurate through single chip circuit calculating, displayed record is quick, the efficient height; 3, measuring instrument is simple in structure, and cost is low, and is easy to maintenance, widely applicable.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is preposition input circuit figure.
Among the figure: 1-soil moisture sensor, 2-ion-selective electrode, 3-contrast electrode, 4-temperature sensor, the preposition input circuit of 5-, the differential moving amplifier of 5-1,5-2 output amplifier, 6-single chip circuit.7-display, 8-register, 9-are tested cup.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified: Fig. 1, in 2, a kind of soil moisture and nutrient measuring instrument, comprise soil moisture sensor 1, it is characterized in that: described measuring instrument also comprises a plurality of ion-selective electrodes 2, contrast electrode 3, temperature sensor 4, preposition input circuit 5 and single chip circuit 6, described soil moisture sensor 1, the output terminal of temperature sensor 4 is connected with the input interface of single chip circuit 6 respectively, the output terminal of ion-selective electrode 2 and contrast electrode 3 is connected with the input end of preposition input circuit 5 respectively, and the output terminal of preposition input circuit 5 is connected with the input interface of single chip circuit 6.Be provided with the differential amplifier 5-1 of high input impedance and the output amplifier 5-2 of low output impedance in the described preposition input circuit 5, the output terminal of ion-selective electrode 2 and contrast electrode 3 is connected with the in-phase input end of differential amplifier respectively, two output terminals of differential amplifier 5-1 are connected with two input ends of output amplifier 5-2 respectively, and the output terminal of output amplifier 5-2 links to each other with the input interface of single chip circuit 6.Be provided with the A/D change-over circuit of soil moisture and soil nutrient measuring-signal in the described single chip circuit 6, also be provided with transformation transformation, temperature compensation and the linearization calculation software of soil nutrient measuring-signal.The tested pedotheque that described ion-selective electrode 2, contrast electrode 3 and temperature sensor 4 are arranged in same test cup prepares solution.
The course of work of testing soil moisture: moisture transducer 1 is inserted the degree of depth to be measured in the soil, the soil impedance signal that produces on two electrodes of mutually insulated on the moisture transducer is admitted to the input interface of single chip circuit 6 at this moment, and shows or record in display or register behind A/D conversion, linearization and temperature compensation software for calculation; Single chip circuit 6 is the general single chip chip, adopts its minimal structure can finish task described in the utility model.
The course of work of testing soil nutrient: because in testing laboratory, normal concentration solution has been passed through in the demarcation of ion-selective electrode, contrast electrode, temperature sensor is proofreaied and correct, and places activating solution.In test site, soil nutrient sample solution to be measured is prepared, again with ion-selective electrode 2, contrast electrode 3, temperature sensor 4 places the solution to be measured of same test cup, presses corresponding selection key on the measuring instrument, can obtain corresponding measurement result on display or register.
Claims (4)
1. soil moisture and nutrient measuring instrument, comprise soil moisture sensor (1), it is characterized in that: described measuring instrument also comprises a plurality of ion-selective electrodes (2), contrast electrode (3), temperature sensor (4), preposition input circuit (5) and single chip circuit (6), described soil moisture sensor (1), the output terminal of temperature sensor (4) is connected with the input interface of single chip circuit (6) respectively, the output terminal of ion-selective electrode (2) and contrast electrode (3) is connected with the input end of preposition input circuit (5) respectively, and the output terminal of preposition input circuit (5) is connected with the input interface of single chip circuit (6).
2. soil moisture according to claim 1 and nutrient measuring instrument, it is characterized in that: be provided with the differential amplifier (5-1) of high input impedance and the output amplifier (5-2) of low output impedance in the described preposition input circuit (5), the output terminal of ion-selective electrode (2) and contrast electrode (3) is connected with the in-phase input end of differential amplifier respectively, two output terminals of differential amplifier (5-1) are connected with two input ends of output amplifier (5-2) respectively, and the output terminal of output amplifier (5-2) links to each other with the input interface of single chip circuit (6).
3. soil moisture according to claim 1 and nutrient measuring instrument, it is characterized in that: be provided with the A/D change-over circuit of soil moisture and soil nutrient measuring-signal in the described single chip circuit (6), also be provided with transformation transformation, temperature compensation and the linearization calculation software of soil nutrient measuring-signal.
4. soil moisture according to claim 1 and nutrient measuring instrument is characterized in that: the tested pedotheque that described ion-selective electrode (2), contrast electrode (3) and temperature sensor (4) are arranged in same test cup prepares solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920087680XU CN201464408U (en) | 2009-07-28 | 2009-07-28 | Measuring instrument of moisture and nutrient of soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920087680XU CN201464408U (en) | 2009-07-28 | 2009-07-28 | Measuring instrument of moisture and nutrient of soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201464408U true CN201464408U (en) | 2010-05-12 |
Family
ID=42391758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920087680XU Expired - Fee Related CN201464408U (en) | 2009-07-28 | 2009-07-28 | Measuring instrument of moisture and nutrient of soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201464408U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091502A (en) * | 2011-11-03 | 2013-05-08 | 中国科学院合肥物质科学研究院 | Mobile device for measuring soil fertility by multichannel ion selective electrode method |
| CN104884947A (en) * | 2012-12-21 | 2015-09-02 | 植物生物科学有限公司 | Soil chemistry sensor |
| CN106770524A (en) * | 2016-12-31 | 2017-05-31 | 郑州贯奥仪器仪表有限公司 | A kind of novel agents of calcium ion tester |
| CN106990145A (en) * | 2017-04-11 | 2017-07-28 | 北京农业智能装备技术研究中心 | A kind of portable soil available nutrient detection means |
-
2009
- 2009-07-28 CN CN200920087680XU patent/CN201464408U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091502A (en) * | 2011-11-03 | 2013-05-08 | 中国科学院合肥物质科学研究院 | Mobile device for measuring soil fertility by multichannel ion selective electrode method |
| CN104884947A (en) * | 2012-12-21 | 2015-09-02 | 植物生物科学有限公司 | Soil chemistry sensor |
| CN104884947B (en) * | 2012-12-21 | 2018-01-09 | 植物生物科学有限公司 | Soil chemistry sensor |
| CN106770524A (en) * | 2016-12-31 | 2017-05-31 | 郑州贯奥仪器仪表有限公司 | A kind of novel agents of calcium ion tester |
| CN106990145A (en) * | 2017-04-11 | 2017-07-28 | 北京农业智能装备技术研究中心 | A kind of portable soil available nutrient detection means |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205175456U (en) | Quick analyzer for soil moisture content | |
| CN102072925A (en) | Stroma moisture and conductivity in situ detector and method for determining salinity | |
| CN201464408U (en) | Measuring instrument of moisture and nutrient of soil | |
| CN201417152Y (en) | Portable multi-parameter cropland information acquisition instrument | |
| CN203216891U (en) | Soil nutrient sensor in solar greenhouse | |
| CN201527424U (en) | Soil moisture parameter tacheometer based on GPS technology | |
| CN105806915A (en) | Device and method for detecting concentration of potassium and sodium ions in nutrient solution | |
| CN202329850U (en) | Temperature rise detecting system of switch apparatus | |
| CN103149180A (en) | Detection device of soil spectral reflectivity and specific conductance and detection method thereof | |
| CN206223724U (en) | A kind of test system of blood sugar instrument | |
| CN102706947B (en) | Portable pH instrument | |
| CN102393415B (en) | Device and method for measuring greenhouse crop nitrogen potassium content | |
| CN205158065U (en) | Portable binary channels sensor collection system based on bluetooth | |
| CN202331083U (en) | Universal multifunctional precursor data acquirer | |
| CN201654096U (en) | Equivalent sampling oscilloscope based on external delay technology | |
| CN203241371U (en) | Portable multi-index impedance biosensor device | |
| CN201909785U (en) | Soil moisture monitoring system based on GPRS (General Packet Radio Service) transmission channel | |
| CN202886468U (en) | Wideband electronic frequency meter | |
| CN111707803B (en) | Use method of portable soil multi-parameter in-situ measurement and calibration device | |
| CN203337594U (en) | Portable device for rapidly detecting concentration of pesticides | |
| CN205506734U (en) | Rice terrace paddy field water nitrogen, phosphorus, automatic taceometer of potassium content | |
| CN101813688A (en) | Multiparameter water quality analyzer | |
| CN203349962U (en) | Multifunctional molten iron temperature measurement gun | |
| CN205210008U (en) | Blood tester | |
| CN101597636A (en) | Measure the method for target enzymic activity with the maximum instantaneous velocity of conjugate enzyme reaction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100512 Termination date: 20130728 |