CN1588025A - Capacitance seed water content on-line sensor with weight compensation - Google Patents
Capacitance seed water content on-line sensor with weight compensation Download PDFInfo
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- CN1588025A CN1588025A CN 200410066206 CN200410066206A CN1588025A CN 1588025 A CN1588025 A CN 1588025A CN 200410066206 CN200410066206 CN 200410066206 CN 200410066206 A CN200410066206 A CN 200410066206A CN 1588025 A CN1588025 A CN 1588025A
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Abstract
The invention provides a weight compensating capacitive seed moisture online sensor applied in the detecting instrument technical field. The invention includes: a weighing sensor, a weighing pan, a sector clapboard, a wheel disc, a electric motor,a capacitance measuring plate electrod, a cylinder baffle, a discharge hole,a side supporting board, a base, the two side supporting board clamp the base tightly to form a fixed frame. The weight sensor is fixed on the base, the weighing pan is fixed on the weight sensor and set under the wheel disc.The wheel disc is set vertically. The sector clapboard which is fixed on the wheel disc divides the wheel disc into several sector space. The discharge hole is an open space formed by the cylinder baffle and the sector, opening downwards. The capacitance measuring plate is on the two opposite surface in the sector space of the wheel disc. The electric motor is set in the axis of the wheel disc and fixed on the side supporting board. The invention provide a simple and compact structure and adapts to online losslessly detecting the moisture of seeds, besides, the adding of weight and temperature compensation decrease the influence of the seeds distribution on detection accuracy.
Description
Technical field
The present invention relates to a kind of moisture transducer, specifically, is a kind of capacitance seed water content on-line sensor with weight compensating.Be used for the detecting instrument technical field.
Background technology
Under at present to the more and more higher situation of the quality requirements of crop seeds, the control of the water cut of seed is become extremely important, wherein the water content detection of seed becomes key issue.The baked seed processor is to reduce seed moisture content, and a kind of important machinery to seed carries out deep processing still lacks a kind of high-precision online seed moisture content measuring method at present, has therefore influenced the treatment effect of baked seed machine.At present, the method for harmless on-line measurement seed moisture content has has only dynamic resistance/capacitance method, measures its dynamic resistance or dynamic capacity indirect calculation seed moisture content by seed being applied dynamic electric voltage.This method is a kind of lossless detection method, and certain precision is arranged, but factors such as the usually distribution of seed in sensor, environment temperature all will influences the precision of measurement.
Find by retrieval, China Patent No. is 92225951.8 is entitled as: the patent of " condenser type moisture transducer ", readme is: the utility model is made up of urceolus, inner core, interior dress control delay circuit and the Electronic Control Box, level sensor, Dump gate, connecting rod and the weight that detect amplifying circuit.The equal coated Buddhist nun of inner core inside and outside wall and outer tube inner wall fluon, in order to eliminate the static adhesion of barrel to material, Dump gate is furnished with weight, and is reliable to guarantee closing of Dump gate.This patent has realized online seed moisture content measurement, but do not have weight compensating, the distribution of seed in tube can have influence on the precision of measurement, in the dryer during online application, because seed vertically falls and can cause momentum, therefore adopt the electrode of this cartridge type can't accurately measure the weight of seed; This technology does not have temperature compensation, and the working temperature in the dryer can influence the measuring accuracy of electric capacity.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, do not have the deficiency of weight compensating, temperature compensation, a kind of capacitance seed water content on-line sensor with weight compensating is provided at having online seed moisture content sensor now.Make the intelligence sensor of its conduct, vertical cartridge type electrode is with one heart become the concentric half cartridge type electrode of level based on the suitable online detection seed moisture content of capacitive measuring principle; Discharge method is become by rotatable parts promotion material, by the mode of gravity dumping by the mode of solenoid actuated Dump gate; By increase LOAD CELLS compensate seed distribute to the influence of seed dynamic resistance electric capacity and by the temperature sensor measurement temperature with the influence of compensation temperature to electric capacity.
The present invention is achieved by the following technical solutions, the present invention includes: LOAD CELLS, the pallet of weighing, sector dividing plate, wheel disc, capacitance measurement pole plate, cartridge type baffle plate, discharging opening, charging aperture, support side plate, base, drive motor, whole instrument constitutes fixed frame by two support side plate clamping bases, cartridge type baffle plates, LOAD CELLS is fixed on the base, the pallet of weighing is fixed on the LOAD CELLS, and constitutes the parts of weighing below being positioned at wheel disc.Wheel disc is vertically placed, and the sector dividing plate that is fixed on the wheel disc is divided into wheel disc between some sector null, constitutes rotating part.Discharging opening is for to constitute the open space that Open Side Down by cartridge type baffle plate and sector; Constitute confined space with the pallet of weighing when Open Side Down in the sector.The capacitance measurement pole plate is positioned at two opposite faces between the wheel disc sector null, and the capacitance measurement pole plate is arranged on axle surface in the wheel disc, and the pallet of will weighing is used as a capacitance measurement pole plate, constitutes a pair of capacitance electrode, can realize the seed capacitance measurement.The upper edge of cartridge type baffle plate and support side plate constitute charging aperture.On the cartridge type baffle plate, be fixed with position transducer, be used to measure sector position, be attached with temperature sensor in the bottom surface of the pallet of weighing.Drive motor places the wheel disc axle center, and be fixed on the support side plate, the present invention also is provided with the gear train of ring gear, driven wheel composition, driven wheel is fixed on the drive motor axle, ring gear is fixed on the wheel disc, driven wheel and ring gear engagement, drive motor drives wheel disc by gear train and rotates.
Because seed is a kind of prose style free from parallelism state between fluid and solid, the control seed enters instrument, flows out the special mechanism of appliance requires, has particularly increased LOAD CELLS, requires seed to stablize certain hour in instrument; Also seed to be discharged outside the instrument after measuring end.
Among the present invention, seed falls from above, enters the sector through charging aperture, and after seed was full of the sector, wheel disc rotated up to the sector that will be full of seed and takes the bottom to, and this part seed is full of the sector and weight all is pressed on the LOAD CELLS; The seed that wheel disc is rotated further in the sector is discharged outside the instrument by discharging opening.The seed temperature is transmitted to temperature sensor by the pallet of weighing of metal, thereby realizes the seed temperature survey; The sector opening is during over against the below, and seed is full of between sector null, and the electrode in weigh pallet and the wheel disc on the axle constitutes a pair of electric capacity, and seed becomes the medium of electric capacity, measures this electric capacity and can obtain seed moisture content value accurately by weight compensating, temperature compensation.Wheel disc is static when weighing for assurance, increases position transducer on the fixed position, thereby the control wheel disc rotates with the location sector position.
The present invention is simple in structure, compact, only needs a motor as dynamical element, and machinery is mainly the wheel disc of a unidirectional rotation.The present invention is fit to online detection seed moisture content, and has increased weight compensating and temperature compensation, has reduced seed and has distributed to the influence of measuring accuracy.
Description of drawings
Fig. 1 structural representation of the present invention
Fig. 2 structure cut-open view of the present invention
Embodiment
As depicted in figs. 1 and 2, the present invention includes: LOAD CELLS 1, the pallet 2 of weighing, sector dividing plate 3, wheel disc 6, capacitance measurement pole plate 9, cartridge type baffle plate 10, discharging opening 11, drive motor 12, support side plate 13, base 14, charging aperture 15, whole instrument constitutes fixed frame by two support side plate, 13 clamping bases 14, cartridge type baffle plate 10, LOAD CELLS 1 is fixed on the base 14, the pallet 2 of weighing is fixed on the LOAD CELLS 1, and be positioned at wheel disc 6 belows, wheel disc 6 is vertically placed, and the sector dividing plate 3 that is fixed on the wheel disc 6 is divided into wheel disc 6 between some sector null; Upper edge and support side plate 13 upper edges at cartridge type baffle plate 10 constitute charging aperture 15; The open space of discharging opening 11 for constituting by cartridge type baffle plate 10 and sector, Open Side Down, and capacitance measurement pole plate 9 is positioned at two opposite faces between wheel disc 6 sector null, and capacitance measurement pole plate 9 is arranged on axle surface in the wheel disc 6, the pallet 2 of will weighing is used as a capacitor plate, constitutes a pair of capacitance electrode.Drive motor 12 places wheel disc 6 axle center, and is fixed on the support side plate 13.
Upper edge at cartridge type baffle plate 10 also is connected with the baffle plate 5 that gathers materials.On cartridge type baffle plate 10, be fixed with position transducer 8, be attached with temperature sensor 16 in the bottom surface of the pallet 2 of weighing.
The present invention also is provided with the gear train of being made up of ring gear 7, driven wheel 4, and driven wheel 4 is fixed on 12 of the drive motor, and ring gear 7 is fixed on the wheel disc 6, driven wheel 4 and ring gear 7 engagements.
Claims (4)
1. capacitance seed water content on-line sensor with weight compensating, comprise: capacitance measurement pole plate (9), cartridge type baffle plate (10), discharging opening (11), drive motor (12), support side plate (13), base (14), charging aperture (15), it is characterized in that, also comprise: LOAD CELLS (1), the pallet (2) of weighing, sector dividing plate (3), baffle plate (5) gathers materials, wheel disc (6), two support side plate (13) clamp base (14), cartridge type baffle plate (10) constitutes fixed frame, upper edge at cartridge type baffle plate (10) connects the baffle plate (5) that gathers materials, constitute charging aperture (15) with support side plate (13) upper edge, LOAD CELLS (1) is fixed on the base (14), the pallet (2) of weighing is fixed on the LOAD CELLS (1), and be positioned at below the wheel disc (6), wheel disc (6) is vertical to be placed, the sector dividing plate (3) that is fixed on the wheel disc (6) is divided into wheel disc (6) between some sector null, discharging opening (11) is the open space that is made of cartridge type baffle plate (10) and sector, Open Side Down, capacitance measurement pole plate (9) is positioned at two opposite faces between wheel disc (6) sector null, drive motor (12) places wheel disc (6) axle center, and is fixed on the support side plate (13).
2, the capacitance seed water content on-line sensor of band weight compensating according to claim 1, it is characterized in that, capacitance measurement pole plate (9) is arranged on axle surface in the wheel disc (6), and the pallet of weighing (2) is equivalent to another capacitance measurement pole plate, constitutes a pair of capacitance electrode.
3, the capacitance seed water content on-line sensor of band weight compensating according to claim 1, it is characterized in that, also be provided with the gear train of forming by ring gear (7), driven wheel (4), driven wheel (4) is fixed on drive motor (12) axle, ring gear (7) is fixed on the interior axle of wheel disc (6), driven wheel (4) and ring gear (7) engagement.
4, the capacitance seed water content on-line sensor of band weight compensating according to claim 1 is characterized in that, is fixed with position transducer (8) on cartridge type baffle plate (10), is attached with temperature sensor (16) in the bottom surface of the pallet of weighing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066206 CN1268919C (en) | 2004-09-09 | 2004-09-09 | Capacitance seed water content on-line sensor with weight compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066206 CN1268919C (en) | 2004-09-09 | 2004-09-09 | Capacitance seed water content on-line sensor with weight compensation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1588025A true CN1588025A (en) | 2005-03-02 |
| CN1268919C CN1268919C (en) | 2006-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410066206 Expired - Fee Related CN1268919C (en) | 2004-09-09 | 2004-09-09 | Capacitance seed water content on-line sensor with weight compensation |
Country Status (1)
| Country | Link |
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| CN (1) | CN1268919C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675656A (en) * | 2016-01-07 | 2016-06-15 | 上海交通大学 | Multi-electrode seed nondestructive on-line moisture detection instrument |
| CN106770506A (en) * | 2017-01-13 | 2017-05-31 | 兰州理工大学 | Measure the capacitance type sensor and measuring method of hydrogen controlled electrode coating water content |
-
2004
- 2004-09-09 CN CN 200410066206 patent/CN1268919C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675656A (en) * | 2016-01-07 | 2016-06-15 | 上海交通大学 | Multi-electrode seed nondestructive on-line moisture detection instrument |
| CN106770506A (en) * | 2017-01-13 | 2017-05-31 | 兰州理工大学 | Measure the capacitance type sensor and measuring method of hydrogen controlled electrode coating water content |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1268919C (en) | 2006-08-09 |
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| SE01 | Entry into force of request for substantive examination | ||
| 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: 20060809 |