CN205679563U - Particle food adjusts base stable state dust humidity detection system - Google Patents
Particle food adjusts base stable state dust humidity detection system Download PDFInfo
- Publication number
- CN205679563U CN205679563U CN201620541534.XU CN201620541534U CN205679563U CN 205679563 U CN205679563 U CN 205679563U CN 201620541534 U CN201620541534 U CN 201620541534U CN 205679563 U CN205679563 U CN 205679563U
- Authority
- CN
- China
- Prior art keywords
- resistance
- pole
- electric capacity
- triode
- negative pole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model discloses particle food and adjust base stable state dust humidity detection system, including humidity measuring circuit, humidity measuring circuit is also associated with signal processing circuit, indication feedback circuit and the power supply input circuit being sequentially connected in series, humidity measuring circuit with signal processing circuit is additionally provided with wet inspection steady-state circuit and adjusts base circuit.The utility model provides particle food to adjust base stable state dust humidity detection system, preferably can detect a small amount of particle food, substantially increase sensitivity and the speed of detection, preferably improve the scope of application of product.
Description
Technical field
The utility model belongs to Humidity Detection instrument field, specifically refers to particle food and adjusts base stable state Humidity Detection system
System.
Background technology
Certain condition deposited by the food such as beans, cereal, especially can not leave in the too high environment of humidity, if
The humidity of food is too high is easy to breed bacteria even moldy metamorphism.And the Humidity Detection that current Humidity Detection instrument is to food
Mode is complex, needs overall to detect it after substantial amounts of food build-up, and when food is less be difficult to pile up when,
Existing product is difficult to quickly detect its humidity.There is the sensitivity of the product that partly can detect a small amount of food humidity
Also relatively slow with reaction speed, thus result in the low of detection efficiency.
Utility model content
The purpose of this utility model is to overcome the problems referred to above, provides particle food to adjust base stable state dust humidity detection system,
Preferably a small amount of particle food can be detected, substantially increase sensitivity and the speed of detection, preferably improve
The scope of application of product.
The purpose of this utility model is achieved through the following technical solutions:
Particle food adjusts base stable state dust humidity detection system, including chip U1, be serially connected in the RESET pin of chip U1 with
Resistance R1 between DISCH pin, resistance R2, positive pole and the core being serially connected between the DISCH pin of chip U1 and TRIG pin
The electric capacity C1 that the TRIG pin of piece U1 is connected, negative pole is connected with the GND pin of chip U1, and positive pole is with chip U1's
The humidity measuring circuit of the electric capacity C2 composition that CONT pin is connected；Wherein, the model of chip U1 is NE555, chip U1's
RESET pin is connected with VCC pin, and the THRES pin of chip U1 is connected with TRIG pin, and two flat boards of electric capacity C1 are made
Test side for this humidity measuring circuit；Humidity measuring circuit is also associated with signal processing circuit, the instruction being sequentially connected in series
Feedback circuit and power supply input circuit, be additionally provided with wet inspection steady-state circuit and tune on humidity measuring circuit with signal processing circuit
Base circuit.
As preferably, described signal processing circuit by positive pole be connected with the OUT pin of chip U1, negative pole is after resistance R3
The electric capacity C3 being connected with the negative pole of electric capacity C2, N pole is connected with the positive pole of electric capacity C3 after electric capacity C4, P pole and electric capacity C3
The diode D1 that negative pole is connected, and P pole is connected with the N pole of diode D1, N pole P with diode D1 after electric capacity C5
The diode D2 composition that pole is connected；Wherein, the negative pole of electric capacity C4 is connected with the N pole of diode D1, the N pole of diode D2 with
The positive pole of electric capacity C5 is connected.
As preferably, described indication feedback circuit is by reading table B, triode VT1, the emitter stage of one end and triode VT1
Be connected, resistance R5 that the other end is connected with the negative pole of electric capacity C2, one end is connected with the base stage of triode VT1, the other end
The slide rheostat RP1 that VCC pin with chip U1 is connected after resistance R4, sliding end is connected with the negative pole of reading table B,
The electric capacity C6 that positive pole is connected with the VCC pin of chip U1, negative pole is connected with the negative pole of electric capacity C2, and one end and triode
The resistance R6 composition that the colelctor electrode of VT1 is connected, the other end is connected with the negative pole of electric capacity C6；Wherein, reading table B is voltage
Table, the positive pole of reading table B is connected with the N pole of diode D2.
As preferably, described power supply input circuit is by power supply GB, and N pole is connected with the positive pole of power supply GB after resistance R8
Connect, diode D3 that P pole is connected with the negative pole of electric capacity C6 after resistance R7 composition；Wherein, the N pole of diode D3 and chip U1
VCC pin be connected, the negative pole of power supply GB is connected with the negative pole of electric capacity C6.
Further, described wet inspection steady-state circuit is by triode VT2, triode VT3, triode VT4, P pole and triode
The diode D4 that the base stage of VT2 is connected, N pole is connected with the emitter stage of triode VT2 after resistance R11, positive pole is through resistance
Be connected with the base stage of triode VT2 after R12, electric capacity C8, positive pole and three poles that negative pole is connected with the emitter stage of triode VT3
The electric capacity C7 that the colelctor electrode of pipe VT2 is connected, negative pole is connected with the emitter stage of triode VT3 after resistance R17, with electric capacity C7
The resistance R10 being arranged in parallel, one end is connected with the positive pole of electric capacity C7, other end positive pole phase with electric capacity C8 after resistance R13
The resistance R9 connecting, one end is connected with the colelctor electrode of triode VT3, the tie point phase of the other end and resistance R9 and resistance R13
The resistance R14 connecting, the electricity that one end is connected with the base stage of triode VT3, the other end is connected with the colelctor electrode of triode VT4
Resistance R15, the electricity that one end is connected with the tie point of resistance R9 and resistance R13, the other end is connected with the colelctor electrode of triode VT4
Resistance R16, the resistance R18 that one end is connected with the emitter stage of triode VT3, the other end is connected with the emitter stage of triode VT4,
And one end is connected with the emitter stage of triode VT3, the resistance R19 that the other end is connected with the base stage of triode VT4 forms；
Wherein, the N pole of diode D4 is as the input of this wet inspection steady-state circuit, and the colelctor electrode of triode VT4 is as this wet inspection stable state
The output of circuit, the N pole of diode D4 is connected with the negative pole of electric capacity C1, and the colelctor electrode of triode VT4 is negative with electric capacity C3's
Pole is connected.
Further, described tune base circuit is by operational amplifier P1, operational amplifier P2, positive pole and operational amplifier P1
The electric capacity C9 that negative input end is connected, negative pole is connected with the output of operational amplifier P1 after resistance R21, with electric capacity C9
The resistance R20 being arranged in parallel, one end is connected with the output of operational amplifier P1, the other end is negative defeated with operational amplifier P2's
Entering the resistance R23 that is connected of end, one end is connected with the negative pole of electric capacity C9, the negative input end phase of the other end and operational amplifier P2
The resistance R22 connecting, one end is connected with the negative input end of operational amplifier P2, the output of the other end and operational amplifier P2
The resistance R24 being connected, and positive pole is connected with the positive input terminal of operational amplifier P2 after resistance R25, negative pole and computing
The electric capacity C10 composition that the output of amplifier P2 is connected；Wherein, the positive input terminal ground connection of operational amplifier P1, electric capacity C9's
Negative pole connects 6V power supply, the plus earth of electric capacity C10, and the output of operational amplifier P1 is as the input of this tune base circuit, fortune
Calculating the output as this operational amplifier P2 for the output of amplifier P2, the input of operational amplifier P1 is with chip U1's
VCC pin is connected, and the output of operational amplifier P2 is connected with the negative pole of electric capacity C2.
The utility model compared with prior art, has the following advantages and beneficial effect:
Particle food of the present utility model adjusts base stable state dust humidity detection system quickly can eat single graininess
The humidity of thing detects, and has high stability, substantially increases flexibility and the Detection results of detection, overcomes existing
The defect that substantial amounts of graininess can only be detected by technology, has higher detection efficiency simultaneously, compares existing detection hand
The detection efficiency of section improves 30-50%.
Brief description
Fig. 1 is the circuit structure diagram that particle food of the present utility model adjusts base stable state dust humidity detection system.
Fig. 2 is the circuit structure diagram of wet inspection steady-state circuit of the present utility model.
Fig. 3 is the circuit structure diagram of tune base circuit of the present utility model.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not
It is limited to this.
Embodiment
It as it is shown in figure 1, particle food adjusts base stable state dust humidity detection system, including chip U1, is serially connected in chip U1's
Resistance R1 between RESET pin and DISCH pin, is serially connected in the resistance between the DISCH pin of chip U1 and TRIG pin
R2, the electric capacity C1 that positive pole is connected with the TRIG pin of chip U1, negative pole is connected with the GND pin of chip U1, and positive pole
The humidity measuring circuit of the electric capacity C2 composition being connected with the CONT pin of chip U1；Wherein, the model of chip U1 is NE555,
The RESET pin of chip U1 is connected with VCC pin, and the THRES pin of chip U1 is connected with TRIG pin, the two of electric capacity C1
Individual flat board is as the test side of this humidity measuring circuit；Humidity measuring circuit is also associated with the signal transacting electricity being sequentially connected in series
Road, indication feedback circuit and power supply input circuit, be additionally provided with wet inspection stable state on humidity measuring circuit with signal processing circuit
Circuit and tune base circuit.
Signal processing circuit is made up of electric capacity C3, electric capacity C4, electric capacity C5, diode D1, diode D2, and resistance R3.
During connection, the positive pole of electric capacity C3 is connected with the OUT pin of chip U1, negative pole negative with electric capacity C2 after resistance R3
Pole is connected, and the N pole of diode D1 is connected with the positive pole of electric capacity C3 after electric capacity C4, P pole is connected with the negative pole of electric capacity C3,
The P pole of diode D2 is connected with the N pole of diode D1, P pole with diode D1 after electric capacity C5, N pole is connected.
Wherein, the negative pole of electric capacity C4 is connected with the N pole of diode D1, the N pole of diode D2 and the positive pole phase of electric capacity C5
Connect.
Indication feedback circuit by reading table B, triode VT1, slide rheostat RP1, resistance R4, resistance R5, resistance R6, with
And electric capacity C6 composition.
During connection, one end of resistance R5 is connected with the emitter stage of triode VT1, the other end is connected with the negative pole of electric capacity C2
Connecing, one end of slide rheostat RP1 is connected with the base stage of triode VT1, other end VCC with chip U1 after resistance R4 manages
Pin is connected, sliding end is connected with the negative pole of reading table B, and the positive pole of electric capacity C6 is connected with the VCC pin of chip U1, negative pole
Being connected with the negative pole of electric capacity C2, one end of resistance R6 is connected with the colelctor electrode of triode VT1, the other end is negative with electric capacity C6's
Pole is connected.
Wherein, reading table B is voltmeter, and the positive pole of reading table B is connected with the N pole of diode D2.
Power supply input circuit is made up of power supply GB, resistance R7, resistance R8, and diode D3.
During connection, N pole is connected with the positive pole of power supply GB after resistance R8, P pole negative pole with electric capacity C6 after resistance R7
The diode D3 being connected.
Wherein, the N pole of diode D3 is connected with the VCC pin of chip U1, the negative pole of the negative pole of power supply GB and electric capacity C6
It is connected.
As in figure 2 it is shown, wet inspection steady-state circuit is by triode VT2, triode VT3, triode VT4, diode D4, electric capacity
C7, electric capacity C8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance
R17, resistance R18, and resistance R19 form.
During connection, the P pole of diode D4 is connected with the base stage of triode VT2, N pole after resistance R11 with triode VT2
Emitter stage be connected, the positive pole of electric capacity C8 is connected with the base stage of triode VT2 after resistance R12, negative pole and triode VT3
Emitter stage be connected, the positive pole of electric capacity C7 is connected with the colelctor electrode of triode VT2, negative pole after resistance R17 with triode
The emitter stage of VT3 is connected, and resistance R10 is arranged in parallel with electric capacity C7, and one end of resistance R9 is connected with the positive pole of electric capacity C7, separately
One end is connected with the positive pole of electric capacity C8 after resistance R13, and one end of resistance R14 is connected with the colelctor electrode of triode VT3, separately
One end is connected with the tie point of resistance R9 and resistance R13, and one end of resistance R15 is connected with the base stage of triode VT3, another
End is connected with the colelctor electrode of triode VT4, and one end of resistance R16 is connected with the tie point of resistance R9 and resistance R13, another
End is connected with the colelctor electrode of triode VT4, and one end of resistance R18 is connected with the emitter stage of triode VT3, the other end and three
The emitter stage of pole pipe VT4 is connected, and one end of resistance R19 is connected with the emitter stage of triode VT3, the other end and triode
The base stage of VT4 is connected.
Wherein, the N pole of diode D4 is as the input of this wet inspection steady-state circuit, and the colelctor electrode of triode VT4 is as this
The output of wet inspection steady-state circuit, the N pole of diode D4 is connected with the negative pole of electric capacity C1, the colelctor electrode of triode VT4 and electricity
The negative pole holding C3 is connected.
As it is shown on figure 3, adjust base circuit by operational amplifier P1, operational amplifier P2, electric capacity C9, electric capacity C10, resistance R20,
Resistance R21, resistance R22, resistance R23, resistance R24, and resistance R25 form.
During connection, the positive pole of resistance R20 is connected with the negative input end of operational amplifier P1, negative pole after resistance R21 with
The electric capacity C9 that the output of operational amplifier P1 is connected, is arranged in parallel with electric capacity C9, one end of resistance R23 and operational amplifier
The output of P1 is connected, the other end is connected with the negative input end of operational amplifier P2, and one end of resistance R22 is with electric capacity C9's
Negative pole is connected, the other end is connected with the negative input end of operational amplifier P2, and one end of resistance R24 is with operational amplifier P2's
Negative input end is connected, the other end is connected with the output of operational amplifier P2, the positive pole of electric capacity C10 after resistance R25 with
The positive input terminal of operational amplifier P2 is connected, negative pole is connected with the output of operational amplifier P2.
Wherein, the positive input terminal ground connection of operational amplifier P1, the negative pole of electric capacity C9 connects 6V power supply, and the positive pole of electric capacity C10 connects
Ground, the output of operational amplifier P1 is as the input of this tune base circuit, and the output of operational amplifier P2 is as this computing
The output of amplifier P2, the input of operational amplifier P1 is connected with the VCC pin of chip U1, and operational amplifier P2's is defeated
Go out end to be connected with the negative pole of electric capacity C2.
During use, being placed on granular food between two flat boards of electric capacity C1, electric capacity C1 can eat according to graininess
The different moisture content change capacitance of thing, and the change of capacitance in electric capacity C1 is judged eventually through the reading in reading table B,
And obtained the humidity of particle food by change.
So just quickly the humidity of single particle food can be detected, have high stability, greatly
Improve greatly flexibility and the Detection results of detection, overcome that substantial amounts of graininess can only detect by prior art lacks
Falling into, having higher detection efficiency simultaneously, the detection efficiency comparing existing detection means improves 30-50%.
As described above, just can well realize the utility model.
Claims (7)
1. particle food adjusts base stable state dust humidity detection system, it is characterised in that: include chip U1, be serially connected in chip U1's
Resistance R1 between RESET pin and DISCH pin, is serially connected in the resistance between the DISCH pin of chip U1 and TRIG pin
R2, the electric capacity C1 that positive pole is connected with the TRIG pin of chip U1, negative pole is connected with the GND pin of chip U1, and positive pole
The humidity measuring circuit of the electric capacity C2 composition being connected with the CONT pin of chip U1；Wherein, the model of chip U1 is NE555,
The RESET pin of chip U1 is connected with VCC pin, and the THRES pin of chip U1 is connected with TRIG pin, the two of electric capacity C1
Individual flat board is as the test side of this humidity measuring circuit；Humidity measuring circuit is also associated with the signal transacting electricity being sequentially connected in series
Road, indication feedback circuit and power supply input circuit, be additionally provided with wet inspection stable state on humidity measuring circuit with signal processing circuit
Circuit and tune base circuit.
2. particle food according to claim 1 adjusts base stable state dust humidity detection system, it is characterised in that: described wet inspection is steady
State circuit is by triode VT2, triode VT3, and triode VT4, P pole is connected with the base stage of triode VT2, N pole is through resistance R11
The diode D4 being connected with the emitter stage of triode VT2 afterwards, positive pole is connected with the base stage of triode VT2 after resistance R12,
The electric capacity C8 that negative pole is connected with the emitter stage of triode VT3, positive pole is connected with the colelctor electrode of triode VT2, negative pole is through electricity
The electric capacity C7 being connected with the emitter stage of triode VT3 after resistance R17, resistance R10, one end and the electric capacity being arranged in parallel with electric capacity C7
The resistance R9 that the positive pole of C7 is connected, the other end is connected with the positive pole of electric capacity C8 after resistance R13, one end and triode VT3
The resistance R14 that colelctor electrode is connected, the other end is connected with the tie point of resistance R9 and resistance R13, one end and triode VT3
The resistance R15 that base stage is connected, the other end is connected with the colelctor electrode of triode VT4, one end and resistance R9's and resistance R13
The emitter stage of the resistance R16 that tie point is connected, the other end is connected with the colelctor electrode of triode VT4, one end and triode VT3
Be connected, resistance R18 that the other end is connected with the emitter stage of triode VT4, and the emitter stage phase of one end and triode VT3
Connect, the resistance R19 composition that the other end is connected with the base stage of triode VT4；Wherein, the N pole of diode D4 is as this wet inspection
The input of steady-state circuit, the colelctor electrode of triode VT4 is as the output of this wet inspection steady-state circuit.
3. particle food according to claim 2 adjusts base stable state dust humidity detection system, it is characterised in that: described tune base electricity
Route operational amplifier P1, operational amplifier P2, positive pole is connected with the negative input end of operational amplifier P1, negative pole is through resistance
The electric capacity C9 being connected with the output of operational amplifier P1 after R21, resistance R20, one end and the fortune being arranged in parallel with electric capacity C9
Calculate amplifier P1 the resistance R23 that output is connected, the other end is connected with the negative input end of operational amplifier P2, one end and
The resistance R22 that the negative pole of electric capacity C9 is connected, the other end is connected with the negative input end of operational amplifier P2, one end is put with computing
The resistance R24 that negative input end is connected, the other end is connected with the output of operational amplifier P2 of big device P2, and positive pole warp
Be connected with the positive input terminal of operational amplifier P2 after resistance R25, electricity that negative pole is connected with the output of operational amplifier P2
Hold C10 composition；Wherein, the positive input terminal ground connection of operational amplifier P1, the negative pole of electric capacity C9 connects 6V power supply, the positive pole of electric capacity C10
Ground connection, the output of operational amplifier P1 is as the input of this tune base circuit, and the output of operational amplifier P2 is as this fortune
Calculate the output of amplifier P2.
4. particle food according to claim 3 adjusts base stable state dust humidity detection system, it is characterised in that: at described signal
Reason circuit is by the electric capacity that OUT pin is connected, negative pole is connected with the negative pole of electric capacity C2 after resistance R3 of positive pole and chip U1
The diode D1 that C3, N pole is connected with the positive pole of electric capacity C3 after electric capacity C4, P pole is connected with the negative pole of electric capacity C3, and P
The diode D2 composition that pole is connected with the N pole of diode D1, N pole is connected with the P pole of diode D1 after electric capacity C5；Its
In, the negative pole of electric capacity C4 is connected with the N pole of diode D1, and the N pole of diode D2 is connected with the positive pole of electric capacity C5.
5. particle food according to claim 4 adjusts base stable state dust humidity detection system, it is characterised in that: described instruction is anti-
Current feed circuit is by reading table B, triode VT1, and one end is connected with the emitter stage of triode VT1, the negative pole of the other end and electric capacity C2
The resistance R5 being connected, one end is connected with the base stage of triode VT1, other end VCC pin with chip U1 after resistance R4
Be connected, slide rheostat RP1 that sliding end is connected with the negative pole of reading table B, positive pole is connected with the VCC pin of chip U1
Connect, electric capacity C6 that negative pole is connected with the negative pole of electric capacity C2, and one end is connected with the colelctor electrode of triode VT1, the other end
The resistance R6 composition being connected with the negative pole of electric capacity C6；Wherein, reading table B is voltmeter, the positive pole of reading table B and diode D2
N pole be connected.
6. particle food according to claim 5 adjusts base stable state dust humidity detection system, it is characterised in that: described power supply is defeated
Enter electricity routing power GB, and N pole is connected with the positive pole of power supply GB after resistance R8, P pole after resistance R7 with electric capacity C6's
The diode D3 composition that negative pole is connected；Wherein, the N pole of diode D3 is connected with the VCC pin of chip U1, and power supply GB's is negative
Pole is connected with the negative pole of electric capacity C6.
7. particle food according to claim 6 adjusts base stable state dust humidity detection system, it is characterised in that: described diode
The N pole of D4 is connected with the negative pole of electric capacity C1, and the colelctor electrode of triode VT4 is connected with the negative pole of electric capacity C3, operational amplifier
The input of P1 is connected with the VCC pin of chip U1, and the output of operational amplifier P2 is connected with the negative pole of electric capacity C2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620541534.XU CN205679563U (en) | 2016-06-03 | 2016-06-03 | Particle food adjusts base stable state dust humidity detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620541534.XU CN205679563U (en) | 2016-06-03 | 2016-06-03 | Particle food adjusts base stable state dust humidity detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205679563U true CN205679563U (en) | 2016-11-09 |
Family
ID=57434708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620541534.XU Expired - Fee Related CN205679563U (en) | 2016-06-03 | 2016-06-03 | Particle food adjusts base stable state dust humidity detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205679563U (en) |
-
2016
- 2016-06-03 CN CN201620541534.XU patent/CN205679563U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104977331A (en) | Cereal moisture detector | |
| CN205679563U (en) | Particle food adjusts base stable state dust humidity detection system | |
| CN106404855A (en) | Base electrode-adjusting steady-state humidity detection system for granular food | |
| CN205720079U (en) | Particle food adjusts base protection dust humidity detection system | |
| CN105954329A (en) | Granular food humidity detection system based on buffering protection circuit | |
| CN203414136U (en) | Liquid-level sensor circuit | |
| CN205691534U (en) | Particle food dust humidity detection system based on wet inspection steady-state circuit | |
| CN106404853A (en) | Base electrode-adjusting protective humidity detection system for granular food | |
| CN205691533U (en) | Particle food dust humidity detection system | |
| CN207424104U (en) | Vibration amplifier sensor capacitance amount detecting device | |
| CN207752123U (en) | Single line detects the circuit of double cell series voltage | |
| CN105973950A (en) | Granular food humidity detecting system based on humidity-detection steady-state circuit | |
| CN106404851A (en) | Humidity detection system for granular food based on base-electrode adjusting circuit | |
| CN203298798U (en) | Granary moisture and temperature detection system | |
| CN106404854A (en) | Steady-state protective humidity detection system for granular food | |
| CN204202773U (en) | A kind of high-frequency and high-voltage power supply temperature sensing circuit | |
| CN106404852A (en) | Humidity detection system for granular food | |
| CN203490812U (en) | Alarm device of humidity detection integrated circuit | |
| CN205691665U (en) | A kind of frequency measurement indicating circuit | |
| CN206515329U (en) | Soil K+adsorption equipment | |
| CN105510844B (en) | Constant pressure load circuit and the simulated battery for using the constant pressure load circuit | |
| CN104897736B (en) | A kind of resistance-type Moisture Meter | |
| CN102426178A (en) | Bridge type humidity indicator for seedling raising shed | |
| CN207096432U (en) | A kind of circuit for detecting electric energy meter load capacity | |
| CN203870054U (en) | Circuit for detecting grain humidity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20161109 Termination date: 20170603 |