CN102520026B - Capacitance probe for detecting moisture content of grains - Google Patents
Capacitance probe for detecting moisture content of grains Download PDFInfo
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- CN102520026B CN102520026B CN 201110450833 CN201110450833A CN102520026B CN 102520026 B CN102520026 B CN 102520026B CN 201110450833 CN201110450833 CN 201110450833 CN 201110450833 A CN201110450833 A CN 201110450833A CN 102520026 B CN102520026 B CN 102520026B
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- metal electrode
- insulating support
- moisture content
- capacitance probe
- detecting moisture
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Abstract
The invention relates to a capacitance probe for detecting moisture content of grains. The device comprises an insulating support (1) and metal electrodes (2), wherein the insulating support (1) is divided into a rear insulating support (1-1) and a front insulating support (1-2) which have consistent appearances to form an 'n' shape; and the metal electrodes (2) comprises a left metal electrode (2-1) and a right metal electrode (2-2) which are respectively in a rectangular shape and have consistent appearances and sizes. The left metal electrode (2-1) and the right metal electrode (2-2) are placed in parallel at a certain interval; and the metal electrodes are clamped between the rear insulating support (1-1) and the front insulating support (1-2) and are pasted together through super glue to form a whole.
Description
Technical fieldThe present invention relates to the fields such as electronic technology, sensing technology and singlechip technology.
Background technologyGrain moisture content is the important guarantee of grain transportation, storage and processing, and it directly affects the quality of cereals, shelf-life and value-added content of product.Grain moisture content detects cereal is stored and be processed with important meaning.
Summary of the invention
The present invention relates to a kind of capacitance probe for detecting moisture content of grains, this device comprises insulating support (1) and metal electrode (2) two parts; Insulating support (1) is divided into two of rear insulating support (1-1) and front insulating supports (1-2), and metal electrode (2) is divided into two of left metal electrode (2-1) and right metal electrodes (2-2).Rear insulating support (1-1) and front insulating support (1-2) are made by insulating thin, and profile is " П " shape, and its lower end shank is used for pasting metal electrode (2).Left metal electrode (2-1) and right metal electrode (2-2) are made by tinsel, rectangularity, left metal electrode (2-1) and right metal electrode (2-2) in the same size, two metal electrodes are placed in parallel in insulating support (1) lower end shank.Rear insulating support (1-1) and front insulating support (1-2) are clipped in the middle metal electrode (2), and are pasted together with seccotine, become as a whole, make metal electrode (2) fully and air insulated.Left metal electrode (2-1) and right metal electrode (2-2) are placed at grade, form the live part of electric capacity.
The beneficial effect of this device is more easy to make than plane-parallel capacitor, is suitable for detecting the water cut of cereals material.
Description of drawings
Fig. 1 stretch-out view of popping one's head in; Fig. 2 electrode installation diagram; Fig. 3 monnolithic case figure; Fig. 4 unitary side view; Fig. 5 support circuit figure.
Among the figure: 1 is insulating support, and 2 is metal electrode, and 1-1 is rear insulating support, and 1-2 is front insulating support, and 2-1 is left metal electrode, and 2-2 is right metal electrode; 3 is capacitance probe; 4 is testing circuit.
Specific embodiments
The present invention relates to a kind of capacitance probe for detecting moisture content of grains, this device comprises insulating support (1) and metal electrode (2) two parts; Insulating support (1) is divided into two of rear insulating support (1-1) and front insulating supports (1-2), and metal electrode (2) is divided into two of left metal electrode (2-1) and right metal electrodes (2-2).Rear insulating support (1-1) and front insulating support (1-2) are clipped in the middle metal electrode (2), and are pasted together with seccotine, become as a whole, make metal electrode (2) fully and air insulated.
In the present embodiment, insulating support (1) can adopt copper clad plate to make, and rear insulating support (1-1) erodes metal electrode (2) Copper Foil in addition, and the Copper Foil of front insulating support (1-2) all erodes.
In the present embodiment, left metal electrode (2-1) and right metal electrode (2-2) can adopt the Copper Foil in the copper clad plate, be etched into rectangle, left metal electrode (2-1) is identical with right metal electrode (2-2) size, long is 50mm, wide is 4mm, and two metal electrodes are placed in parallel in insulating support (1) lower end shank, and level is at a distance of 10mm.
In the present embodiment, left metal electrode (2-1) and right metal electrode (2-2) form the electric capacity live part, are connected in 3 pin and 5 pin of electric capacity digital conversion chip AD7150.
In the present embodiment, testing circuit comprises electric capacity digital conversion chip, single-chip microcomputer, button and demonstration etc.
Claims (1)
1. a capacitance probe for detecting moisture content of grains comprises insulating support (1) and metal electrode (2) two parts; Insulating support (1) is divided into two of rear insulating support (1-1) and front insulating supports (1-2), and metal electrode (2) is divided into two of left metal electrode (2-1) and right metal electrodes (2-2); It is characterized in that: rear insulating support (1-1) and front insulating support (1-2) are made by insulating thin, and profile is " П " shape, and its lower end shank is used for pasting metal electrode (2).
2. a kind of capacitance probe for detecting moisture content of grains according to claim 1, it is characterized in that left metal electrode (2-1) and right metal electrode (2-2) make by tinsel, rectangularity, and left metal electrode (2-1) and right metal electrode (2-2) in the same size, two metal electrodes are placed in parallel in insulating support (1) lower end shank.
3. a kind of capacitance probe for detecting moisture content of grains according to claim 1, it is characterized in that rear insulating support (1-1) and front insulating support (1-2) are clipped in the middle metal electrode (2), and be pasted together with seccotine, become as a whole, make metal electrode (2) fully and air insulated.
4. a kind of capacitance probe for detecting moisture content of grains according to claim 1 is characterized in that left metal electrode (2-1) and right metal electrode (2-2) are placed at grade, forms the live part of electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110450833 CN102520026B (en) | 2011-12-30 | 2011-12-30 | Capacitance probe for detecting moisture content of grains |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110450833 CN102520026B (en) | 2011-12-30 | 2011-12-30 | Capacitance probe for detecting moisture content of grains |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102520026A CN102520026A (en) | 2012-06-27 |
| CN102520026B true CN102520026B (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110450833 Expired - Fee Related CN102520026B (en) | 2011-12-30 | 2011-12-30 | Capacitance probe for detecting moisture content of grains |
Country Status (1)
| Country | Link |
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| CN (1) | CN102520026B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616391B (en) * | 2013-10-25 | 2019-03-29 | 北京林业大学 | Moisture transducer and topsoil parameter acquisition devices |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086899A (en) * | 1992-10-01 | 1994-05-18 | 泽韦格·乌斯特有限公司 | Capacitive transducer in order to the change of the quality that detects elongated textile test material and/or diameter |
| CN1547660A (en) * | 2001-08-31 | 2004-11-17 | 伊顿公司 | Combined fluid condition monitor and fluid level sensor |
| CN1864065A (en) * | 2003-10-04 | 2006-11-15 | 苏拉有限及两合公司 | Method and device for monitoring a thread |
| DE102008035658A1 (en) * | 2008-07-31 | 2010-02-11 | Kompetenzzentrum Strukturleichtbau E.V. | Device for capacitive humidity measurement of composite structure i.e. laminated wood composite structure, has sensor provided with two sensor elements, where one of sensor elements is provided in contact with hygroscopic adhesive layer |
| CN102162804A (en) * | 2009-12-16 | 2011-08-24 | Nxp股份有限公司 | Capacitive sensor |
| CN202442986U (en) * | 2011-12-30 | 2012-09-19 | 湖南科技学院 | Capacitive grain moisture transducer probe |
-
2011
- 2011-12-30 CN CN 201110450833 patent/CN102520026B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086899A (en) * | 1992-10-01 | 1994-05-18 | 泽韦格·乌斯特有限公司 | Capacitive transducer in order to the change of the quality that detects elongated textile test material and/or diameter |
| CN1547660A (en) * | 2001-08-31 | 2004-11-17 | 伊顿公司 | Combined fluid condition monitor and fluid level sensor |
| CN1864065A (en) * | 2003-10-04 | 2006-11-15 | 苏拉有限及两合公司 | Method and device for monitoring a thread |
| DE102008035658A1 (en) * | 2008-07-31 | 2010-02-11 | Kompetenzzentrum Strukturleichtbau E.V. | Device for capacitive humidity measurement of composite structure i.e. laminated wood composite structure, has sensor provided with two sensor elements, where one of sensor elements is provided in contact with hygroscopic adhesive layer |
| CN102162804A (en) * | 2009-12-16 | 2011-08-24 | Nxp股份有限公司 | Capacitive sensor |
| CN202442986U (en) * | 2011-12-30 | 2012-09-19 | 湖南科技学院 | Capacitive grain moisture transducer probe |
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| Publication number | Publication date |
|---|---|
| CN102520026A (en) | 2012-06-27 |
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