CN206505183U - A kind of biological detection sensor - Google Patents
A kind of biological detection sensor Download PDFInfo
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- CN206505183U CN206505183U CN201720218810.3U CN201720218810U CN206505183U CN 206505183 U CN206505183 U CN 206505183U CN 201720218810 U CN201720218810 U CN 201720218810U CN 206505183 U CN206505183 U CN 206505183U
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Abstract
The utility model discloses a kind of biological detection sensor, it includes power subsystem and probe unit at least all the way, power subsystem is that each road probe unit is powered, probe unit includes a detection circuit and two detection electrodes, two detection electrode compartments are set to be electrically connected with detection circuit, and detection electrode is used to detect electric capacity when biology passes through.Detection circuit includes B233 integrated chips U1, emitting led, resistance R2/R3/R4, electric capacity C3/C4, U1 power end connects resistance R2 and electric capacity C3 one end respectively, resistance R2 other end connection power subsystem, U1 detectable signal input is grounded by electric capacity C4, two detection electrodes are connected to electric capacity C4 two ends, U1 signal amplification output end connects resistance R3/R4 one end respectively, the resistance R3 other end is the output end of probe unit, resistance R4 is grounded respectively by emitting led ground connection, the electric capacity C3 other end and U1 earth terminal and level set direction end.The utility model realizes near field biological detection, and detectivity is adjustable, and market is using wide.
Description
Technical field
The utility model is related to a kind of biological detection sensor.
Background technology
The various electric wave noises of presence in air, deposit biological meeting in atmosphere have certain distribution capacity to the earth, biological
The various electric wave noises in air are received, and are stored on itself distribution capacity to the earth.
Insect pest in life, the plague of rats, some biological destructions usually to valuables or equipment, how simple and fast to band
There is the biological of electric wave noise to carry out closely（In 5CM）Detection has become the developing direction of technical staff.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art that there is provided a kind of biological detection sensor.
The technical solution adopted in the utility model is：
A kind of biological detection sensor, it includes power subsystem and probe unit at least all the way, and the power subsystem is
Each road probe unit is powered, and each probe unit includes a detection circuit and two detection electrodes, two detection electrode compartments
Setting is electrically connected with detection circuit, and detection electrode is used to detect electric capacity when biology passes through；
The detection circuit include B233 integrated chips U1, emitting led, resistance R2, resistance R3, resistance R4, electric capacity C3 and
Electric capacity C4, B233 integrated chip U1 1 pin is that signal amplifies output end, and 2 pin are earth terminal, and 3 pin are detectable signal input, 4
Pin is output level set direction end, and 5 pin are power end, and 6 pin are mode selection terminal；B233 integrated chips U1 power end difference
Resistance R2 one end and electric capacity C3 one end are connected, the resistance R2 other end connects the output end of power subsystem, the integrated cores of B233
Piece U1 detectable signal input is grounded by electric capacity C4, and two detection electrodes are connected respectively in electric capacity C4 two ends,
B233 integrated chips U1 signal amplification output end connects resistance R3 one end and resistance R4 one end respectively, and resistance R3's is another
Hold the output end for probe unit, the resistance R4 other end connects emitting led positive pole, emitting led negative pole, electric capacity C3 it is another
One end and B233 integrated chips U1 earth terminal and level set direction end are grounded respectively.
The power subsystem includes resistance R1, electric capacity C1, electric capacity C2 and voltage-stabiliser tube U0, resistance R1 one end connection external electrical
Source, the resistance R1 other end connects voltage-stabiliser tube U0 power input and electric capacity C1 one end respectively, and voltage-stabiliser tube U0 power supply is defeated
Go out one end that end connects electric capacity C2 one end and the resistance R2 of Ge Lu probe units respectively, voltage-stabiliser tube U0 earth terminal, electric capacity C1
The other end and electric capacity C2 the other end ground connection.
The electric capacity C1 values are 0.1-75P, and the electric capacity C2 values are 0.1-75P, and the electric capacity C3 values are 0.1-
75P, the electric capacity C4 values are 0.1-75P.
The value of the resistance R1 is that 1-100 Ω, the resistance R2 value are 1-100 Ω, the value of the resistance R3
For 1-100k Ω, the value of the resistance R4 is 1 Ω -10M Ω.
The voltage-stabiliser tube U0 is the voltage-stabiliser tube that out-put supply is 1.8-5.5V.
The utility model uses above technical scheme, coordinates whether electric capacity C4 sensings have biological process by detection electrode,
Realize that external power source after 1.8-5.5V voltage-stabiliser tube voltage stabilizing using powering, and C1, C2, C3 are to biological detection using B223IC
Power good plays filter action；Coordinate whether electric capacity C4 sensings have biological process by detection electrode, when biology is by detection
During electrode, B233 integrated chips U1 3 pin are detectable signal input（IN）There are signal input, B233 integrated chips U1 1 pin
I.e. signal amplifies output end（OUT）High level signal is exported, light emitting LED lamp is bright to be indicated；When B233 integrated chips U1 3 pin are to visit
Survey signal input part（IN）There is no signal input, B233 integrated chips U1 1 pin is signal amplification output end（OUT）Export low electricity
Flat, light emitting LED lamp does not work.Further, since pcb board has the electric capacity of distribution over the ground, B233 integrated chips U1 3 pin can be adjusted
I.e. the compensating electric capacities of the electric capacity C4 of detectable signal input over the ground, biological sensitivity is detected to improve.
Brief description of the drawings
The utility model is described in further details below in conjunction with the drawings and specific embodiments；
Fig. 1 is a kind of detection circuit schematic diagram of biological detection sensor of the utility model；
Fig. 2 is a kind of circuit diagram of the power subsystem of biological detection sensor of the utility model.
Embodiment
As shown in the figures 1 and 2, the utility model discloses a kind of biological detection sensor, and it includes power subsystem and at least one
The probe unit on road, the power subsystem is that each road probe unit is powered, and each probe unit includes a detection circuit and two
Individual detection electrode, two detection electrode compartments are set to be electrically connected with detection circuit, and detection electrode is used to detect electric when biology passes through
Hold；
As shown in figure 1, the detection circuit includes B233 integrated chips U1, emitting led, resistance R2, resistance R3, resistance
R4, electric capacity C3 and electric capacity C4, B233 integrated chip U1 1 pin are that signal amplifies output end, and 2 pin are earth terminal, and 3 pin are believed for detection
Number input, 4 pin are output level set direction end, and 5 pin are power end, and 6 pin are mode selection terminal；B233 integrated chips U1's
Power end connects resistance R2 one end and electric capacity C3 one end respectively, and the output end of resistance R2 other end connection power subsystem is
Vout, B233 integrated chip U1 detectable signal input are grounded by electric capacity C4, two detection electrodes be connected respectively in
Electric capacity C4 two ends, B233 integrated chips U1 signal amplification output end connect respectively resistance R3 one end and resistance R4 one
End, the resistance R3 other end is the output end of probe unit, and the resistance R4 other end connects emitting led positive pole, emitting led
Negative pole, the earth terminal of the electric capacity C3 other end and B233 integrated chips U1 and level set direction end are grounded respectively.
As shown in Fig. 2 the power subsystem includes resistance R1, electric capacity C1, electric capacity C2 and voltage-stabiliser tube U0, resistance R1 one end
External power source POWER_IN is connected, the resistance R1 other end connects voltage-stabiliser tube U0 power input Vin and electric capacity C1 respectively
One end, voltage-stabiliser tube U0 power output end Vout connects the one of electric capacity C2 one end and the resistance R2 of Ge Lu probe units respectively
End, voltage-stabiliser tube U0 earth terminal GND, the electric capacity C1 other end and electric capacity C2 other end ground connection.
The electric capacity C1 values are 0.1-75P, and the electric capacity C2 values are 0.1-75P, and the electric capacity C3 values are 0.1-
75P, the electric capacity C4 values are 0.1-75P.
The value of the resistance R1 is that 1-100 Ω, the resistance R2 value are 1-100 Ω, the value of the resistance R3
For 1-100k Ω, the value of the resistance R4 is 1 Ω -10M Ω.
The voltage-stabiliser tube U0 is the voltage-stabiliser tube that out-put supply is 1.8-5.5V.
The utility model uses above technical scheme, coordinates whether electric capacity C4 sensings have biological process by detection electrode,
Realize that, to biological detection, external power source POWER_IN powers after using 1.8-5.5V voltage-stabiliser tube voltage stabilizing using B223IC,
C1, C2, C3 are that power good plays filter action；Coordinate whether electric capacity C4 sensings have biological process by detection electrode, work as life
When thing passes through detection electrode, B233 integrated chips U1 3 pin are detectable signal input（IN）There are signal input, the integrated cores of B233
Piece U1 1 pin is signal amplification output end（OUT）High level signal is exported, light emitting LED lamp is bright to be indicated；As B233 integrated chips U1
3 pin be detectable signal input（IN）There is no signal input, B233 integrated chips U1 1 pin is signal amplification output end
（OUT）Low level is exported, light emitting LED lamp does not work.Further, since pcb board has the electric capacity of distribution over the ground, B233 collection can be adjusted
3 pin into chip U1 are the compensating electric capacities of the electric capacity C4 of detectable signal input over the ground, to improve the sensitivity that detection is biological.This
Utility model detects electric wave noise and the biological distribution capacity to the earth in biological receptive air using proximity detection mode.
The utility model can be the biological detection of single channel, i.e., one closely（In 5 centimetres）Detect a biology by when sensing
The biological detection of device module or multichannel, i.e., it is multiple closely（In 5 centimetres）Detection it is multiple it is biological by when sensor
Module.The utility model is simple in construction, it is easy to accomplish near field is biological, and can adjust detectivity, market application as needed
It is wide.
Claims (5)
1. a kind of biological detection sensor, it is characterised in that：It includes power subsystem and probe unit at least all the way, the electricity
Source unit is that each road probe unit is powered, and each probe unit includes a detection circuit and two detection electrodes, two detections
Electrode compartment sets and electrically connected with detection circuit, and detection electrode is used to detect electric capacity when biology passes through；
The detection circuit includes B233 integrated chips U1, emitting led, resistance R2, resistance R3, resistance R4, electric capacity C3 and electric capacity
C4, B233 integrated chip U1 1 pin are that signal amplifies output end, and 2 pin are earth terminal, and 3 pin are detectable signal input, and 4 pin are
Output level set direction end, 5 pin are power end, and 6 pin are mode selection terminal；B233 integrated chips U1 power end is connected respectively
Resistance R2 one end and electric capacity C3 one end, the resistance R2 other end connect the output end of power subsystem, B233 integrated chips U1
Detectable signal input be grounded by electric capacity C4, two detection electrodes are connected respectively in electric capacity C4 two ends, B233 collection
Signal amplification output end into chip U1 connects resistance R3 one end and resistance R4 one end respectively, and the resistance R3 other end is spy
Survey the output end of unit, the resistance R4 other end connects emitting led positive pole, emitting led negative pole, the electric capacity C3 other end with
And B233 integrated chips U1 earth terminal and level set direction end are grounded respectively.
2. a kind of biological detection sensor according to claim 1, it is characterised in that：The power subsystem include resistance R1,
Electric capacity C1, electric capacity C2 and voltage-stabiliser tube U0, resistance R1 one end connection external power source, the resistance R1 other end connect voltage-stabiliser tube respectively
U0 power input and electric capacity C1 one end, voltage-stabiliser tube U0 power output end connects electric capacity C2 one end respectively and Ge Lu is visited
Survey the resistance R2 of unit one end, the other end ground connection of voltage-stabiliser tube U0 earth terminal, the electric capacity C1 other end and electric capacity C2.
3. a kind of biological detection sensor according to claim 2, it is characterised in that：The electric capacity C1 values are 0.1-75P,
The electric capacity C2 values are 0.1-75P, and the electric capacity C3 values are 0.1-75P, and the electric capacity C4 values are 0.1-75P.
4. a kind of biological detection sensor according to claim 2, it is characterised in that：The value of the resistance R1 is 1-100
Ω, the resistance R2 value are that 1-100 Ω, the resistance R3 value are that 1-100k Ω, resistance R4 value is 1
Ω-10MΩ。
5. a kind of biological detection sensor according to claim 2, it is characterised in that：The voltage-stabiliser tube U0 is that out-put supply is
1.8-5.5V voltage-stabiliser tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720218810.3U CN206505183U (en) | 2017-03-08 | 2017-03-08 | A kind of biological detection sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720218810.3U CN206505183U (en) | 2017-03-08 | 2017-03-08 | A kind of biological detection sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206505183U true CN206505183U (en) | 2017-09-19 |
Family
ID=59842014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720218810.3U Active CN206505183U (en) | 2017-03-08 | 2017-03-08 | A kind of biological detection sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206505183U (en) |
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2017
- 2017-03-08 CN CN201720218810.3U patent/CN206505183U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190305 Address after: 353000 No. 8 Houxiang Road, Jianxin Town, Cangshan District, Fuzhou City, Fujian Province Patentee after: Fuzhou Xinhang Plastic Co., Ltd. Address before: 350000 Room 201, 2nd Floor, 24 Cangshan Garden, Pushang, Jinshan Industrial Concentration Zone, No. 8 Houxiang Road, Jianxin Town, Cangshan District, Fuzhou City, Fujian Province Patentee before: Fuzhou rotary navigation Electronics Co., Ltd. |
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| TR01 | Transfer of patent right |