CN2549459Y - Infrared electronic water content test device - Google Patents
Infrared electronic water content test device Download PDFInfo
- Publication number
- CN2549459Y CN2549459Y CN 02273759 CN02273759U CN2549459Y CN 2549459 Y CN2549459 Y CN 2549459Y CN 02273759 CN02273759 CN 02273759 CN 02273759 U CN02273759 U CN 02273759U CN 2549459 Y CN2549459 Y CN 2549459Y
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- infrared
- microprocessor
- temperature
- converter
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Abstract
The utility model discloses an infrared electronic water content test device. A weighing mechanism is formed by a gravity sensor, a linear amplifier, an A/D converter and a microprocessor; an infrared heating device is formed by an infrared heater, a linearizer, an A/D converter, a temperature display, a temperature follower and comparator, a setting circuit and an infrared controller; and a comparing test displaying circuit consists of a microprocessor 2, a control key and a display. By two single chip microprocessors, with one chip for weighing, and another chip for functional test, the utility model combines the electronic balance with the testing function, and can online test the water content of the grain crops, promising quick and accurate as well as simple operation and convenient reading, thereby being in particular applicable to testing the corn with much water; besides, the utility model solves the phenomenon of manually observing the water content value of the grain crops.
Description
Technical field:
The utility model is the infrared moisture tester, is the improvement to existing electronics infrared moisture testing tool, belongs to grain moisture content detecting instrument technical field.
Background technology:
The type product is domestic few in number at present, and great majority are external product.The domestic infrared ray water tester that only has one, two family to produce still is the optic test principle fifties, and pointer-type shows, uses very trouble.The electronics infrared ray water tester of Chu Xianing also was a part of test function of stack on the basis of electronic balance in recent years, from appearance, and two products of sensory images all in the use, and also price is more expensive.No matter domestic this series products is, all very expensive outward, and what wherein main cause was that sensor adopts is the very expensive magnetometric sensor and the profound formula sensor that shakes.
Summary of the invention:
Characteristics such as the utility model discloses a kind of infrared electronic moisture tester, replaces existing detecting instrument, has low price, and is easy to detect, and data are accurate.
The utility model test philosophy adopts thermogravimetry, is heated by test sample product and dries weightlessness and test water cut.Get sample, put into the high precision weighing plate, infrared heater is placed on the weighing plate top, heat the while weighing system at the weighing example weight, because heating-up temperature is higher, sample moisture content is constantly lost, and weight is reducing, according to the thermogravimetry (TG) principle, lose weight that part of be exactly water cut in the sample, after this data process singlechip microprocessor processing, calculate water percentage, show by the LED charactron again.
Adopt following technical solution: constitute Weighing mechanism by gravity sensor, linear amplifier, A/D converter, microprocessor I, constitute infrared heating device by infrared heater, linearizer, A/D converter, temperature indicator, temperature follower and comparer, initialization circuit, infrared controller, microprocessor II and function keyboard, display are formed the compare test display circuit;
Wherein, gravity sensor signal output part wiring amplifier input terminal, amplification voltage signal inputs to A/D converter, and conversion of signals is become digital signal, is handled by microprocessor I again; Digital quantity after finishing sends to microprocessor II by the TXD serial port, carries out moisture content calculating and shows various parameters; The infrared radiation source controller is connected output signal with the temperature follower, goes to control the work of infrared property line well heater; The moisture content value that tests out is sent into light-emitting diode display and is shown.Temperature sensor is connected with infrared heater and just converts temperature to electric signal, export to linearizer and carry out linearization process, treated electric signal one tunnel enters by A/D converter, convert digital quantity to temperature indicator and show, the next setting signal of another road and initialization circuit enters comparer simultaneously, compare the difference electric signal and enter the temperature follower, control infrared heater jointly with the signal that microprocessor II comes.
Good effect of the present utility model is: adopt two singlechip microprocessor, a slice is as weighing, and a slice is as functional test, electronic balance and test function organically are combined into an integral body, moisture that can the on-line testing cereal crops, fast, accurately, simple to operate, read conveniently.Be particularly suitable for testing big moisture corn, solved the backward phenomenon of in the past leaning on manual observation grain moisture content value.
Description of drawings:
Fig. 1 is the utility model structure principle chart.
Fig. 2 is the utility model circuit block diagram.
Fig. 3 is the utility model circuit theory diagrams.
1～infrared heating device, 2～temperature sensor, 3～Weighing mechanism, 4～gravity sensor, 5～horizontal baffle, 6～display, 7～function keyboard, 8～test circuit, 9～body.
Embodiment:
In Fig. 1, device has infrared heating device 1 on the tester body 9, can heat by infrared ray bulb, the bottom of heating arrangement 1 is provided with horizontal baffle 5, temperature sensor 2 and Weighing mechanism 3, and test circuit 8 is located in the testing tool body 9 and is connected with display 6 with the function keyboard 7 on body 9 surfaces.
In Fig. 2 and Fig. 3, primary element gravity sensor 4 converts physical quantity weight to electric signal, after the wiring amplifier zooms into the voltage signal of 0-3 volt of standard, enter by CD4051, the A/D converter that TL082 and microprocessor I (AT89C52) form, general-0-3 volt voltage signal converts digital signal to, handle by microprocessor I again, digital quantity after finishing is transmitted to microprocessor II (AT9C52) by the TXD serial port, carry out moisture content calculating and show various parameters by this single-chip microcomputer, and processing is from the signal of function keyboard 7, and the output switching value is controlled the output voltage size of temperature follower again by the infrared radiation source controller to the infrared radiation source controller, remove to control infrared property line well heater 1, the moisture content value that tests out is sent into light-emitting diode display and is shown.Temperature sensor 2 just converts the temperature of infrared heater 1 to electric signal, carry out linearization process by the linearizer of forming by OP07, treated electric signal one tunnel enters the A/D converter of being made up of TLC7109, convert digital quantity to temperature indicator and show, the next setting signal of another road and initialization circuit enters comparer simultaneously, compare the difference electric signal and enter the temperature follower, control infrared heater work jointly with the signal that microprocessor II comes.
Claims (1)
1, a kind of infrared electronic moisture tester, comprise Weighing mechanism, infrared heating device and test display circuit composition, it is characterized in that: constitute Weighing mechanism by gravity sensor, linear amplifier, A/D converter, microprocessor I, constitute infrared heating device by infrared heater, linearizer, A/D converter, temperature indicator, temperature follower and comparer, initialization circuit, infrared controller, microprocessor II and operating key, display are formed the compare test display circuit;
Wherein, gravity sensor signal output part wiring amplifier input terminal, amplification voltage signal inputs to A/D converter, and conversion of signals is become digital signal, is handled by microprocessor 1 again; Digital quantity after finishing sends to microprocessor 2 by the TXD serial port, carries out moisture content calculating and shows various parameters; The infrared radiation source controller is connected output signal with the temperature follower, goes to control the work of infrared property line well heater; The moisture content value that tests out is sent into light-emitting diode display and is shown.Temperature sensor is connected with infrared heater and just converts temperature to electric signal, export to linearizer and carry out linearization process, treated electric signal one tunnel enters by A/D converter, convert digital quantity to temperature indicator and show, the next setting signal of another road and initialization circuit enters comparer simultaneously, compare the difference electric signal and enter the temperature follower, control infrared heater jointly with the signal that microprocessor II comes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02273759 CN2549459Y (en) | 2002-06-19 | 2002-06-19 | Infrared electronic water content test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02273759 CN2549459Y (en) | 2002-06-19 | 2002-06-19 | Infrared electronic water content test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2549459Y true CN2549459Y (en) | 2003-05-07 |
Family
ID=33738176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02273759 Expired - Fee Related CN2549459Y (en) | 2002-06-19 | 2002-06-19 | Infrared electronic water content test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2549459Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237574A (en) * | 2010-04-21 | 2011-11-09 | 昆达电脑科技(昆山)有限公司 | Global position system (GPS) antenna system of multiple antenna selection usage |
| CN106290721A (en) * | 2016-07-21 | 2017-01-04 | 苏州蓑笠翁养生科技有限公司 | A kind of moisture test apparatus |
| CN107462672A (en) * | 2017-07-17 | 2017-12-12 | 许昌县东和畜牧养殖专业合作社 | It is a kind of to transmit and data storage divides water instrument |
| CN110146401A (en) * | 2018-02-10 | 2019-08-20 | 天津市大桥道食品有限公司 | A kind of test method freezing water content in milk sweets |
-
2002
- 2002-06-19 CN CN 02273759 patent/CN2549459Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237574A (en) * | 2010-04-21 | 2011-11-09 | 昆达电脑科技(昆山)有限公司 | Global position system (GPS) antenna system of multiple antenna selection usage |
| CN106290721A (en) * | 2016-07-21 | 2017-01-04 | 苏州蓑笠翁养生科技有限公司 | A kind of moisture test apparatus |
| CN107462672A (en) * | 2017-07-17 | 2017-12-12 | 许昌县东和畜牧养殖专业合作社 | It is a kind of to transmit and data storage divides water instrument |
| CN110146401A (en) * | 2018-02-10 | 2019-08-20 | 天津市大桥道食品有限公司 | A kind of test method freezing water content in milk sweets |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |