CN205786451U - A kind of condenser type grain moisture detector - Google Patents

A kind of condenser type grain moisture detector Download PDF

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Publication number
CN205786451U
CN205786451U CN201620510499.5U CN201620510499U CN205786451U CN 205786451 U CN205786451 U CN 205786451U CN 201620510499 U CN201620510499 U CN 201620510499U CN 205786451 U CN205786451 U CN 205786451U
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China
Prior art keywords
electric capacity
unit
temperature sensor
mcu
digital conversion
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Expired - Fee Related
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CN201620510499.5U
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Chinese (zh)
Inventor
林松志
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Individual
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Individual
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Priority to CN201620510499.5U priority Critical patent/CN205786451U/en
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Anticipated expiration legal-status Critical

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Abstract

This utility model provides a kind of condenser type grain moisture detector, including power subsystem, electric capacity digital conversion unit, MCU, concentric drums capacitance sensor, push-button unit, display unit and temperature sensor, power subsystem connects electric capacity digital conversion unit respectively, MCU, display unit and temperature sensor, concentric drums capacitance sensor connects electric capacity digital conversion unit, electric capacity digital conversion unit, push-button unit, display unit and temperature sensor connect MCU respectively, this utility model is reasonable in design, easy to use, certainty of measurement is high, disturb little, low-power consumption and fast operation, low cost.

Description

A kind of condenser type grain moisture detector
Technical field
This utility model belongs to field of agricultural technical equipment, is specifically related to a kind of condenser type grain moisture detector.
Background technology
The moisture content of corn is one of most important index, and directly reflect is the quality of seed quality, is also that corn exists Agricultural production, commercial distribution, commercial production, scientific research activity in most basic index parameter.Survey the most accurately and rapidly Measure the moisture content in corn, be to produce the major issue must probed in reality.In all multi-methods that grain moisture is measured, Traditional measuring method is that the precision of detection is high by the moisture removal of corn by physics and chemical method, but time-consuming and cost Higher, it is adaptable to laboratory environment, it is unsuitable for the actual field produced.
Utility model content
The purpose of this utility model is for solving above-mentioned deficiency, it is provided that a kind of condenser type grain moisture detector.
The purpose of this utility model is achieved through the following technical solutions:
A kind of condenser type grain moisture detector, including power subsystem, electric capacity digital conversion unit, MCU, concentric drums electricity Hold sensor, push-button unit, display unit and temperature sensor, power subsystem connect respectively electric capacity digital conversion unit, MCU, Display unit and temperature sensor, concentric drums capacitance sensor connection electric capacity digital conversion unit, electric capacity digital conversion unit, Push-button unit, display unit and temperature sensor connect MCU respectively.
MCU uses MSP430F5528 singlechip chip.
Electric capacity digital conversion unit uses FDC1004 chip.
Temperature sensor uses NTC sensor.
This utility model has a following beneficial effect:
This utility model is reasonable in design, easy to use, and certainty of measurement is high, disturbs little, low-power consumption and fast operation, cost Low.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is display unit circuit figure of the present utility model;
Fig. 3 is temperature sensor circuit of the present utility model;
Fig. 4 is power circuit of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described:
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of condenser type grain moisture detector, including power subsystem 1, electric capacity numeral Converting unit 2, MCU3, concentric drums capacitance sensor 4, push-button unit 5, display unit 6 and temperature sensor 7, power subsystem 1 Connecting electric capacity digital conversion unit 2, MCU3, display unit 6 and temperature sensor 7 respectively, concentric drums capacitance sensor 4 connects Electric capacity digital conversion unit 2, electric capacity digital conversion unit 2, push-button unit 5, display unit 6 and temperature sensor 7 connect respectively MCU3。
MCU uses MSP430F5528 singlechip chip.
Electric capacity digital conversion unit uses FDC1004 chip.
Temperature sensor uses NTC sensor.
Concentric drums torch sensor is connected (and taking anti-interference process) with FDC1004 chip;FDC1004 chip Being connected with processor of single chip computer, single-chip microcomputer is responsible for communicating with FDC1004;Single-chip microcomputer is connected for the work of display system with LCD Make state and measurement result;Button is connected with single-chip microcomputer for arranging system operating mode and instruction input;Power module is born The power supply of duty whole system.
LCD is the dot matrix LCD of 84x48, can show 4 row Chinese characters;Pin includes power supply
At interior 9, only need the single P mouth of MCU to achieve that the communication with LCD, support serial ports or SPI pattern; Running voltage 3.3V, operating current during normal display is at 200 below μ A, low in energy consumption.This LCD display measure grain variety, Measure progress status, grain temperature and system status information.
Button is set to 4 mechanical keys, is respectively " switch " " selection " " measurement " " charging ".On & off switch is used for system Startup and closedown, select key for the selection of material, measure key and trigger system and measure, charging button by material by be measured District is filled into measurement zone.
NTC Conditioning Circuits of Sensor uses bridge circuit, and R19 is NTC resistance, and bridge circuit output is difference letter Number, circuit passes on left the reference voltage that Zener diode provides stable, and right side examination is made up of the general amplification circuit of LM358 Direct current differential signal amplifier.

Claims (4)

1. a condenser type grain moisture detector, including power subsystem, electric capacity digital conversion unit, MCU, concentric drums electric capacity Sensor, push-button unit, display unit and temperature sensor, it is characterised in that: power subsystem connects the conversion of electric capacity numeral respectively Unit, MCU, display unit and temperature sensor, concentric drums capacitance sensor connects electric capacity digital conversion unit, electric capacity numeral Converting unit, push-button unit, display unit and temperature sensor connect MCU respectively.
A kind of condenser type grain moisture detector the most according to claim 1, it is characterised in that: described MCU uses MSP430F5528 singlechip chip.
A kind of condenser type grain moisture detector the most according to claim 1, it is characterised in that: described electric capacity numeral turns Change unit and use FDC1004 chip.
A kind of condenser type grain moisture detector the most according to claim 1, it is characterised in that: described temperature sensor Use NTC sensor.
CN201620510499.5U 2016-05-31 2016-05-31 A kind of condenser type grain moisture detector Expired - Fee Related CN205786451U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620510499.5U CN205786451U (en) 2016-05-31 2016-05-31 A kind of condenser type grain moisture detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620510499.5U CN205786451U (en) 2016-05-31 2016-05-31 A kind of condenser type grain moisture detector

Publications (1)

Publication Number Publication Date
CN205786451U true CN205786451U (en) 2016-12-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620510499.5U Expired - Fee Related CN205786451U (en) 2016-05-31 2016-05-31 A kind of condenser type grain moisture detector

Country Status (1)

Country Link
CN (1) CN205786451U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107167569A (en) * 2017-05-31 2017-09-15 合肥艾瑞德电气有限公司 A kind of portable moisture analyzer
CN107192746A (en) * 2017-05-31 2017-09-22 合肥艾瑞德电气有限公司 A kind of condenser type moisture analyser for possessing prompting function
CN107192798A (en) * 2017-05-31 2017-09-22 合肥艾瑞德电气有限公司 A kind of moisture analyser for possessing various dimensions acquisition function
CN107219141A (en) * 2017-05-31 2017-09-29 合肥艾瑞德电气有限公司 A kind of moisture sample circuit and the condenser type moisture analyser for possessing the circuit
CN107219273A (en) * 2017-05-31 2017-09-29 合肥艾瑞德电气有限公司 A kind of moisture analyser machine moisture monitoring method
CN107238636A (en) * 2017-05-31 2017-10-10 合肥艾瑞德电气有限公司 A kind of condenser type moisture analyser
CN107238635A (en) * 2017-05-31 2017-10-10 合肥艾瑞德电气有限公司 A kind of open-close type electric capacity moisture analyser

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107167569A (en) * 2017-05-31 2017-09-15 合肥艾瑞德电气有限公司 A kind of portable moisture analyzer
CN107192746A (en) * 2017-05-31 2017-09-22 合肥艾瑞德电气有限公司 A kind of condenser type moisture analyser for possessing prompting function
CN107192798A (en) * 2017-05-31 2017-09-22 合肥艾瑞德电气有限公司 A kind of moisture analyser for possessing various dimensions acquisition function
CN107219141A (en) * 2017-05-31 2017-09-29 合肥艾瑞德电气有限公司 A kind of moisture sample circuit and the condenser type moisture analyser for possessing the circuit
CN107219273A (en) * 2017-05-31 2017-09-29 合肥艾瑞德电气有限公司 A kind of moisture analyser machine moisture monitoring method
CN107238636A (en) * 2017-05-31 2017-10-10 合肥艾瑞德电气有限公司 A kind of condenser type moisture analyser
CN107238635A (en) * 2017-05-31 2017-10-10 合肥艾瑞德电气有限公司 A kind of open-close type electric capacity moisture analyser

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20161207

Termination date: 20170531