CN202041492U - Device for measuring water content of grain - Google Patents
Device for measuring water content of grain Download PDFInfo
- Publication number
- CN202041492U CN202041492U CN2011201018362U CN201120101836U CN202041492U CN 202041492 U CN202041492 U CN 202041492U CN 2011201018362 U CN2011201018362 U CN 2011201018362U CN 201120101836 U CN201120101836 U CN 201120101836U CN 202041492 U CN202041492 U CN 202041492U
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- temperature
- circuit
- moisture content
- chip microcomputer
- grain moisture
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Abstract
The utility model relates to a device for measuring the water content of grain. The device comprises a plate capacitance sensor (1), an oscillating circuit (2), a singlechip (3), a temperature sensor (4), an alarm circuit (5) and a display (6); the plate capacitance sensor (1) and the oscillating circuit (2) constitute a frequency generating circuit; the water content of the grain is converted into capacitance variation through the plate capacitance sensor (1); the capacitance variation is converted into frequency variation through the oscillating circuit (2); the output frequency is measured by the singlechip (3) and is conveyed to the display (6) after being internally processed by the singlechip, and then the water content of the grain can be displayed; the temperature sensor (4) is used for detecting the temperature of the grain; and when the temperature or the water content of the grain exceeds a limit value, the alarm circuit (5) gives an alarm automatically.
Description
Technical field:This utility model relates to fields such as electronic technology, sensing technology and computer technology.
Background technology:Grain moisture content is the important assurance of grain transportation, storage and processing, and it directly influences the quality of cereals, and grain moisture content detects cereal is stored and be processed with important meaning.
Summary of the invention:A kind of grain moisture content determining instrument, this device be a kind of electronic installation that can detect the grain moisture amount of design mainly, can detect the water cut of cereal quantitatively, provides correct foundation for cereal stores, processes and transports.This device is made up of capacity plate antenna sensor (1), oscillatory circuit (2), single-chip microcomputer (3), temperature sensor (4), warning circuit (5), display (6); Capacity plate antenna sensor (1) and oscillatory circuit (2) component frequency produce circuit, grain moisture content converts electric capacitance change to by capacity plate antenna sensor (1), electric capacitance change is converted to frequency change by oscillatory circuit (2), the frequency of output is detected by single-chip microcomputer (3), after the single-chip microcomputer inter-process, send display (6) to show the water cut of cereal, temperature sensor (4) is used to detect the temperature of cereal, when the temperature of cereal or water cut surpass limit value, warning circuit (5) will be reported to the police automatically.
The beneficial effect of this device is to store and a kind of simple in structure, cost low water content detection system of processing design for cereal.
Description of drawings
Fig. 1 block scheme; Fig. 2 capacitor arrangement figure; Fig. 3 schematic diagram
At Fig. 1, among Fig. 2 and Fig. 3, comprise capacity plate antenna sensor (1), oscillatory circuit (2), single-chip microcomputer (3), temperature sensor (4), warning circuit (5), display (6) and storage tank (7).
[0005]
Specific embodiments
Capacity plate antenna sensor (1) and oscillatory circuit (2) component frequency produce circuit, grain moisture content converts electric capacitance change to by capacity plate antenna sensor (1), electric capacitance change is converted to frequency change by oscillatory circuit (2), the frequency of oscillatory circuit (2) output is detected by single-chip microcomputer (3), after the single-chip microcomputer inter-process, send display (6) to show the water cut of cereal, temperature sensor (4) is used to detect the temperature of cereal and gives single-chip microcomputer (3) with temperature signal, convert temperature value to by single-chip microcomputer (3), the water cut of cereal and temperature send display (6) to show again, when the water cut of cereal or temperature surpassed limit value, single-chip microcomputer (3) control warning circuit (5) was reported to the police.
In the present embodiment, with two parallel placements of pole plate of capacity plate antenna sensor (1), and form a cuboid storage tank, capacity plate antenna sensor (1) just in time is two right opposites of storage tank (7), and cereal to be measured is put into storage tank and measured.
In the present embodiment, capacity plate antenna sensor (1) and oscillatory circuit (2) are formed 555 oscillatory circuits, are used to produce the digit pulse frequency signal, and when the grain moisture content in the storage tank (7) changed, oscillation frequency went out to change.
In the present embodiment, adopt the signal of single-chip microcomputer (3) receiving frequency signals and temperature sensor, and processing obtains grain moisture content and temperature value, send display (6) to show, when temperature and water cut surpass setting, single-chip microcomputer (3) control warning circuit (5) is reported to the police, and it is STC12C5406AD that single-chip microcomputer adopts model.
In the present embodiment, temperature sensor (4) adopts digital temperature sensor DS18B20.
In the present embodiment, display (6) adopts the LCD1602 LCD.
In the present embodiment, oscillatory circuit (2), single-chip microcomputer (3), temperature sensor (4), warning circuit (5), display (6) all adopt the power supply of 5V power supply.
Claims (4)
1. grain moisture content determining instrument is characterized in that this device is made up of capacity plate antenna sensor (1), oscillatory circuit (2), single-chip microcomputer (3), temperature sensor (4), warning circuit (5), display (6); Capacity plate antenna sensor (1) and oscillatory circuit (2) component frequency produce circuit, grain moisture content converts electric capacitance change to by capacity plate antenna sensor (1), electric capacitance change is converted to frequency change by oscillatory circuit (2), the frequency of output is detected by single-chip microcomputer (3), after the single-chip microcomputer inter-process, send display (6) to show the water cut of cereal, temperature sensor (4) is used to detect the temperature of cereal, when the temperature of cereal or water cut surpass limit value, warning circuit (5) will be reported to the police automatically.
2. the described a kind of grain moisture content determining instrument of claim 1 is characterized in that with two parallel placements of pole plate of capacity plate antenna sensor (1) and forms a storage tank that cereal to be measured is put into storage tank and measured.
3. the described a kind of grain moisture content determining instrument of claim 1 is characterized in that capacity plate antenna sensor (1) and oscillatory circuit (2) component frequency produce circuit, are used to produce pulse duration frequency signal.
4. the described a kind of grain moisture content determining instrument of claim 1, it is characterized in that adopting the signal of single-chip microcomputer (3) receiving frequency signals and temperature sensor, and processing obtains grain moisture content and temperature value, send display (6) to show, when water cut and temperature surpassed setting, single-chip microcomputer (3) control warning circuit (5) was reported to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201018362U CN202041492U (en) | 2011-04-10 | 2011-04-10 | Device for measuring water content of grain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201018362U CN202041492U (en) | 2011-04-10 | 2011-04-10 | Device for measuring water content of grain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202041492U true CN202041492U (en) | 2011-11-16 |
Family
ID=44968930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201018362U Expired - Fee Related CN202041492U (en) | 2011-04-10 | 2011-04-10 | Device for measuring water content of grain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202041492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110865159A (en) * | 2019-11-27 | 2020-03-06 | 农业农村部南京农业机械化研究所 | Grain water content online detection method and system |
-
2011
- 2011-04-10 CN CN2011201018362U patent/CN202041492U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110865159A (en) * | 2019-11-27 | 2020-03-06 | 农业农村部南京农业机械化研究所 | Grain water content online detection method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HU NAN UNIVERSITY OF SCIENCE AND ENGINEERING Free format text: FORMER OWNER: ZHOU WENZHEN Effective date: 20120208 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120208 Address after: Yang Zitang road 425100 Yongzhou city of Hunan province Lingling District No. 130 Patentee after: Hunan University of Science and Engineering Address before: Yang Zitang road 425100 Yongzhou city of Hunan province Lingling District No. 130 Patentee before: Zhou Wenzhen |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20120410 |