CN106525907A - Detection device used for grain moisture content - Google Patents
Detection device used for grain moisture content Download PDFInfo
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- CN106525907A CN106525907A CN201610961130.0A CN201610961130A CN106525907A CN 106525907 A CN106525907 A CN 106525907A CN 201610961130 A CN201610961130 A CN 201610961130A CN 106525907 A CN106525907 A CN 106525907A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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Abstract
Provided is a detection device used for grain moisture content. The detection device comprises a detection shell body, the detection shell body is provided with a cavity, the cavity is provided with several moisture detecting circuit boards, the several moisture detecting circuit boards are uniformly distributed in the inner part of the cavity, and several grain through-holes are uniformly formed in the inner side wall of the detection shell body above the moisture detecting circuit boards; the outside of the detection shell body is provided with an external thread, and the external thread on the outside of the detection shell body is connected to a sleeve. The detection device used for the grain moisture content has the advantages that during the detection, the detection shell body is inserted into a granary, then a handle is immovably pressed, and the sleeve is rotated till rotated out so that grains with different depths in the granary can enter from the grain through-holes into the cavity and then are subjected to moisture detection through the moisture detection circuit boards.
Description
Technical field
The present invention relates to grain technical field, and in particular to a kind of detection means for grain moisture content.
Background technology
Food problem is related to the development of national economy and stablizing for society, so ensureing that the quality of grain is one important
Work.Grain affects the factor of quality many in storage, transport, purchase and sale, typically with the temperature and humidity of grain in silo
To predominantly detect number, silo composition of gases within content is supplementary number.However, grain is distinguished in storage, transport and in purchasing and selling
The state of other grain, the easy detection of its humidity is in demand.Especially for some grain purchases units, to grain
Humidity has the grain water of certain requirement, the detection of the grain moisture content being especially previously stored in silo, and silo different depth
Point content may be different, this storage to grain it is critical that.
Lack the testing equipment to grain moisture content in silo in the prior art, typically grain in silo can only be taken out
Check and survey, coverage is less, it is difficult to meet actual demand.
The content of the invention
It is an object of the invention to provide a kind of detection means for grain moisture content, to solve to carry in above-mentioned background technology
The problem for going out.
For achieving the above object, the present invention provides following technical scheme：
A kind of detection means for grain moisture content, including detection housing, offer cavity in the detection housing, set in cavity
There are several water content detection circuit boards, several water content detection circuit boards are evenly arranged in cavity inside, water content detection circuit board
Some grain through holes are offered uniformly on the detection case inside wall of top；The detection hull outside is provided with external screw thread, detects
Hull outside is threaded with sleeve；The water content detection circuit board includes NE555 chips, resistance R1, resistance R2, slip variable resistance
Device R3, resistance R4, resistance R5, diode D1, diode D2, DC voltage gauge outfit, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity
C4, electric capacity C5 and tunable capacitor C6, connect resistance R1 between the port 2 and port 7 of the NE555 chips；The end of NE555 chips
Connect resistance R2 between mouth 7 and port 8；Connect tunable capacitor C6, NE555 chips between the port 1 and port 2 of NE555 chips
Port 4 and port 8 connect；The port 1 and port 2 of NE555 chips connects；Between the port 3 and port 5 of NE555 chips according to
Secondary series capacitance C3, diode D2, electric capacity C4 and electric capacity C1, in the two ends of the diode D2 and electric capacity C4 being connected in series di-
Pole pipe D1, is connected in parallel electric capacity C2 at the two ends of audion C3 and diode D1；Between the port 1 and port 8 of NE555 chips according to
The not moved end of two of secondary series resistance R4 and slide rheostat R3, the moved end connection DC voltage gauge outfit of slide rheostat R3, directly
Ampere-voltage meter head connects the common port of electric capacity C4 and diode D2；The connection of the port 4 pull-up electric capacity C5 of NE555 chips, in resistance
The common port of R4 and diode D3 is also connected with resistance R5, and resistance R5 is also connected with power supply VCC.
As further scheme of the invention it is：The detection housing bottom is fixedly connected with insertion cone.
As the present invention, further scheme is：The detection case top is connected with vertical bar, and vertical bar top is solid
Surely it is connected with handle.
As the present invention, further scheme is：External diameter of the handle length less than detection housing.
As the present invention, further scheme is：The port 1 of the NE555 chips is also connected with electric capacity C1's and electric capacity C2
Common port.
As the present invention, further scheme is：The negative pole of the diode D1 connects the positive pole of diode D2.
As the present invention, further scheme is：The size of the electric capacity C1 is equal in magnitude with electric capacity C3.
As the present invention, further scheme is：The measurement range of the DC voltage gauge outfit is between 0-3V.
The invention has the beneficial effects as follows in detection, detection housing is inserted in silo, it is motionless then to pin handle, rotation
Rotaring sleeve, sleeve is screwed out so that in silo, the grain of different depth can be entered in cavity from grain through hole, then by water
Go-on-go slowdown monitoring circuit plate carries out the detection of moisture；There is specific function to close with relative air humidity according to the output of DC voltage
System, can detect that the relative humidity of air residing for grain by the size for measuring output voltage.By NE555 chips and R1, R2
And tunable capacitor C6 just constitutes a pulse oscillator.In the outfan of oscillating circuit, one is constituted by C2, C3 and D1, D2
Pulse detection circuit, the impulse transfer that oscillating circuit is exported by it are DC voltage, and this voltage is passed through a DC voltage
Gauge outfit shows, so that it may learn the humidity of grain.And electric capacity C5 therein plays a part of pressure limiting energy storage, electric capacity C1 and C4 have been then
To the effect of filtering, what this was designed as is to increase the capacity of resisting disturbance of circuit.And resistance R5 then mainly plays a part of partial pressure,
The excessive damage NE555 chips of voltage are avoided, and resistance R4 then mainly plays a part of shunting.The circuit structure is simple, uses
It is convenient, it is very suitable for grain moisture measurement.Electric capacity C5 is additionally provided with the port 4 of NE555 chips, to filter output letter
Interference signal in number, test result are accurate.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the circuit diagram of the present invention.
In figure：1- detection housings, 2- cavitys, 3- sleeves, 4- silos, 5- water content detection circuit boards, 6- grain through holes, 7- are inserted
Enter cone, 8- vertical bars, 9- handles.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 and Fig. 2 is referred to, in the embodiment of the present invention, a kind of detection means for grain moisture content, including detection housing
1, cavity 2 is offered in the detection housing 1, be provided with several water content detection circuit boards 5, several water content detection in cavity 2
Circuit board 5 is evenly arranged in inside cavity 2, if uniformly offering on 1 medial wall of detection housing above water content detection circuit board 5
Solid food eats through hole 6, is connected with vertical bar 8 at the top of the detection housing 1, and 8 top of vertical bar is fixedly connected with handle 9；The inspection
Survey and on the outside of housing 1, be provided with external screw thread, detection 1 external screw-thread of housing is connected with sleeve 3, in detection, detection housing 1 is inserted into
In silo 4, then pin that handle 9 is motionless, sleeve 3 is screwed out by turnbarrel 3 so that the grain of different depth can in silo
Enter in cavity 2 from grain through hole 6, the detection of moisture is then carried out by water content detection circuit board 5；
The water content detection circuit board 5 includes NE555 chips, resistance R1, resistance R2, slide rheostat R3, resistance R4, resistance
R5, diode D1, diode D2, DC voltage gauge outfit, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5 and adjustable electric
Hold C6, between the port 2 and port 7 of the NE555 chips, connect resistance R1；Connect between the port 7 and port 8 of NE555 chips
Connecting resistance R2；Connect tunable capacitor C6 between the port 1 and port 2 of NE555 chips, the port 4 and port 8 of NE555 chips connect
Connect；The port 1 and port 2 of NE555 chips connects；Electric capacity C3, two poles are sequentially connected in series between the port 3 and port 5 of NE555 chips
Pipe D2, electric capacity C4 and electric capacity C1, in the two ends parallel diode D1 of the diode D2 and electric capacity C4 being connected in series, in audion C3
Electric capacity C2 is connected in parallel with the two ends of diode D1；Resistance R4 and cunning are sequentially connected in series between the port 1 and port 8 of NE555 chips
The not moved end of two of dynamic rheostat R3, the moved end connection DC voltage gauge outfit of slide rheostat R3, DC voltage gauge outfit connection electricity
Hold the common port of C4 and diode D2；The connection of the port 4 pull-up electric capacity C5 of NE555 chips, in resistance R4 and the public affairs of diode D3
End is also connected with resistance R5 altogether, and resistance R5 is also connected with power supply VCC, is had according to output and the relative air humidity of DC voltage specific
Functional relationship, the relative humidity of air residing for grain can detect that by the size for measuring output voltage.By NE555 chips
A pulse oscillator is constituted just with R1, R2 and tunable capacitor C6.In the outfan of oscillating circuit, by C2, C3 and D1, D2 groups
Into a pulse detection circuit, the impulse transfer that oscillating circuit is exported by it is DC voltage, and this voltage is straight by one
Ampere-voltage meter head shows, so that it may learn the humidity of grain.And electric capacity C5 therein plays a part of pressure limiting energy storage, electric capacity C1 and C4
It is then to play a part of filtering, what this was designed as is to increase the capacity of resisting disturbance of circuit.And resistance R5 then mainly plays partial pressure
Effect, it is to avoid excessive damage NE555 chips of voltage, and resistance R4 then mainly plays a part of shunting.The circuit structure letter
It is single, it is easy to use, it is very suitable for grain moisture measurement.Electric capacity C5 is additionally provided with the port 4 of NE555 chips, to filter
Except the interference signal in output signal, test result is accurate.
1 bottom of the detection housing is fixedly connected with insertion cone 7, and convenient detection housing 1 can be successfully inserted at silo 4
It is internal.
External diameter of 9 length of the handle less than detection housing 1, so that sleeve can be screwed out from outside detection housing 1, will not
Interfere.
The port 1 of the NE555 chips is also connected with the common port of electric capacity C1 and electric capacity C2.
The negative pole of the diode D1 connects the positive pole of diode D2.
The size of the electric capacity C1 is equal in magnitude with electric capacity C3.
The measurement range of the DC voltage gauge outfit is between 0-3V.
The present invention the course of work be：In detection, detection housing 1 is inserted in silo 4, handle 9 is then pinned not
Dynamic, sleeve 3 is screwed out by turnbarrel 3 so that in silo, the grain of different depth can enter into cavity 2 from grain through hole 6
It is interior, the detection of moisture is then carried out by water content detection circuit board 5；Spy is had with relative air humidity according to the output of DC voltage
Fixed functional relationship, can detect that the relative humidity of air residing for grain by the size for measuring output voltage.By NE555 cores
Piece and R1, R2 and tunable capacitor C6 just constitute a pulse oscillator.In the outfan of oscillating circuit, by C2, C3 and D1, D2
One pulse detection circuit of composition, the impulse transfer that oscillating circuit is exported by it are DC voltage, and this voltage is passed through one
DC voltage gauge outfit shows, so that it may learn the humidity of grain.And electric capacity C5 therein plays a part of pressure limiting energy storage, electric capacity C1 and
C4 is then to play a part of filtering, and what this was designed as is to increase the capacity of resisting disturbance of circuit.And resistance R5 is then mainly played point
The effect of pressure, it is to avoid the excessive damage NE555 chips of voltage, and resistance R4 then mainly plays a part of shunting.The circuit structure
Simply, it is easy to use, it is very suitable for grain moisture measurement.Electric capacity C5 is additionally provided with the port 4 of NE555 chips, so as to
The interference signal in output signal is filtered, test result is accurate.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as and limit involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of description is only that those skilled in the art should for clarity
Using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (8)
1. a kind of detection means for grain moisture content, including detection housing, it is characterised in that offer in the detection housing
Cavity, is provided with several water content detection circuit boards in cavity, several water content detection circuit boards are evenly arranged in cavity inside, water
Some grain through holes are offered uniformly on detection case inside wall above go-on-go slowdown monitoring circuit plate；The detection hull outside is provided with
External screw thread, detection hull outside are threaded with sleeve；The water content detection circuit board includes NE555 chips, resistance R1, resistance
R2, slide rheostat R3, resistance R4, resistance R5, diode D1, diode D2, DC voltage gauge outfit, electric capacity C1, electric capacity C2, electricity
Hold C3, electric capacity C4, electric capacity C5 and tunable capacitor C6, between the port 2 and port 7 of the NE555 chips, connect resistance R1；
Connect resistance R2 between the port 7 and port 8 of NE555 chips；Connect tunable capacitor between the port 1 and port 2 of NE555 chips
The port 4 and port 8 of C6, NE555 chip connects；The port 1 and port 2 of NE555 chips connects；3 He of port of NE555 chips
Electric capacity C3, diode D2, electric capacity C4 and electric capacity C1 are sequentially connected in series between port 5, in the diode D2 and electric capacity C4 that are connected in series
Two ends parallel diode D1, be connected in parallel electric capacity C2 at the two ends of audion C3 and diode D1；The port 1 of NE555 chips
Two of resistance R4 and slide rheostat R3 not moved ends are sequentially connected in series and port 8 between, the moved end connection of slide rheostat R3 is straight
Ampere-voltage meter head, DC voltage gauge outfit connect the common port of electric capacity C4 and diode D2；The connection of port 4 pull-up of NE555 chips
Electric capacity C5, is also connected with resistance R5 in the common port of resistance R4 and diode D3, and resistance R5 is also connected with power supply VCC.
2. a kind of detection means for grain moisture content according to claim 1, it is characterised in that the detection housing bottom
It is fixedly connected with insertion cone.
3. a kind of detection means for grain moisture content according to claim 1 or claim 2, it is characterised in that the detection housing
Top is connected with vertical bar, and vertical bar top is fixedly connected with handle.
4. a kind of detection means for grain moisture content according to claim 3, it is characterised in that the handle length is less than
The external diameter of detection housing.
5. a kind of detection means for grain moisture content according to claim 1, it is characterised in that the NE555 chips
Port 1 is also connected with the common port of electric capacity C1 and electric capacity C2.
6. a kind of detection means for grain moisture content according to claim 1, it is characterised in that the diode D1's is negative
Pole connects the positive pole of diode D2.
7. a kind of detection means for grain moisture content according to claim 1, it is characterised in that the size of the electric capacity C1
It is equal in magnitude with electric capacity C3.
8. a kind of detection means for grain moisture content according to claim 1, it is characterised in that the DC voltage gauge outfit
Measurement range between 0-3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610961130.0A CN106525907A (en) | 2016-11-04 | 2016-11-04 | Detection device used for grain moisture content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610961130.0A CN106525907A (en) | 2016-11-04 | 2016-11-04 | Detection device used for grain moisture content |
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| Publication Number | Publication Date |
|---|---|
| CN106525907A true CN106525907A (en) | 2017-03-22 |
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ID=58326208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610961130.0A Pending CN106525907A (en) | 2016-11-04 | 2016-11-04 | Detection device used for grain moisture content |
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| Country | Link |
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| CN (1) | CN106525907A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107102034A (en) * | 2017-03-29 | 2017-08-29 | 合肥智纳农业科技有限公司 | A kind of intermittent negative pressure feeding formula grain measurement of moisture content equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112818U (en) * | 1992-01-21 | 1992-08-12 | 刘明智 | Multi-purpose detecting tube for granary |
| CN200993646Y (en) * | 2006-12-26 | 2007-12-19 | 中国农业大学 | Soil moisture sensor |
| CN201247113Y (en) * | 2008-07-30 | 2009-05-27 | 梁振华 | Temperature measurement wet lever |
| CN202814955U (en) * | 2012-09-19 | 2013-03-20 | 张兆军 | Rapid moisture meter for grains |
| CN103868954A (en) * | 2014-03-25 | 2014-06-18 | 成都国科海博信息技术股份有限公司 | Grain humidity detection circuit |
| CN204422271U (en) * | 2015-03-08 | 2015-06-24 | 枣庄市德宏淀粉有限公司 | Porous type starch sampling Detection instrument |
| JP3198551U (en) * | 2015-04-24 | 2015-07-09 | 株式会社ケット科学研究所 | Single particle moisture meter packing mechanism and single particle moisture meter using this mechanism |
-
2016
- 2016-11-04 CN CN201610961130.0A patent/CN106525907A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112818U (en) * | 1992-01-21 | 1992-08-12 | 刘明智 | Multi-purpose detecting tube for granary |
| CN200993646Y (en) * | 2006-12-26 | 2007-12-19 | 中国农业大学 | Soil moisture sensor |
| CN201247113Y (en) * | 2008-07-30 | 2009-05-27 | 梁振华 | Temperature measurement wet lever |
| CN202814955U (en) * | 2012-09-19 | 2013-03-20 | 张兆军 | Rapid moisture meter for grains |
| CN103868954A (en) * | 2014-03-25 | 2014-06-18 | 成都国科海博信息技术股份有限公司 | Grain humidity detection circuit |
| CN204422271U (en) * | 2015-03-08 | 2015-06-24 | 枣庄市德宏淀粉有限公司 | Porous type starch sampling Detection instrument |
| JP3198551U (en) * | 2015-04-24 | 2015-07-09 | 株式会社ケット科学研究所 | Single particle moisture meter packing mechanism and single particle moisture meter using this mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107102034A (en) * | 2017-03-29 | 2017-08-29 | 合肥智纳农业科技有限公司 | A kind of intermittent negative pressure feeding formula grain measurement of moisture content equipment |
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Application publication date: 20170322 |