CN208091399U - A kind of novel detection circuit of the high precision high stability based on pneumoelectric electron beam - Google Patents
A kind of novel detection circuit of the high precision high stability based on pneumoelectric electron beam Download PDFInfo
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- CN208091399U CN208091399U CN201820614045.1U CN201820614045U CN208091399U CN 208091399 U CN208091399 U CN 208091399U CN 201820614045 U CN201820614045 U CN 201820614045U CN 208091399 U CN208091399 U CN 208091399U
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- 238000010894 electron beam technology Methods 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 14
- 230000003321 amplification Effects 0.000 claims abstract description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 5
- 230000009977 dual effect Effects 0.000 claims description 18
- DSCFFEYYQKSRSV-KLJZZCKASA-N D-pinitol Chemical compound CO[C@@H]1[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)[C@H]1O DSCFFEYYQKSRSV-KLJZZCKASA-N 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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Abstract
The utility model discloses a kind of novel detection circuits of the high precision high stability based on pneumoelectric electron beam, including data processing module, data disaply moudle, the voltage input module for providing operating voltage, the LTC6655 power supply chips module for providing burning voltage, the pressure sensor module for obtaining pressure information, the operation amplifier circuit module for playing amplification to analog signal and the analog-to-digital conversion module for carrying out analog-to-digital conversion.The utility model by using model LTC6655 high precision electro source chip and support circuit, high-precision and high-stability reference power supply module is established for measuring system, it is different from 7805 serial regulated power supply chips on the market, much less than 7805 serial regulated power supply chip of the interference of power supply ripple and noise caused by high precision electro source chip using model LTC6655, measured value can be made closer to sensor return value, precision higher, stability are more preferable.
Description
Technical field
The utility model is related to power circuit technical field, especially a kind of high precision high stability based on pneumoelectric electron beam
Novel detection circuit.
Background technology
The air-gauge is made of pneumatic linear transducer, indicator (table), air filter and voltage-stablizer etc.
Dimensional measuring instrument can carry out the measurement of contactless type by air-gauge, and measurement efficiency is high.Air-gauge measuring principle
It is comparative measurement method, is broadly divided into two major classes, the first kind is float type pneumatic measuring instrument, and measurement method is to turn length signals
Airflow signal is turned to, the buoy indicating value in graduated glass tube is passed through；Second class is electronics pillar pneumatic measuring instrument, also referred to as gas
Electronics is stayed, and measurement method is that airflow signal is converted to electric signal by pneumatic-to-current converter by the light beam that luminous tube forms to be shown
Value.The pneumoelectric electronics is stayed, and is to utilize electro-pneumatic principle, air pressure in pneumatic-to-current converter is caused when measured size changes
It changes, and then gas electric transducer inductive voltage value is caused to change, to correspond to the variation of electron beam show value, and profit
Data are handled with singlechip technology, the absolute value or relative value of measured size can be directly displayed.For most on the market
Several pneumoelectric electron beams is all using 7805 serial regulated power supply chips directly as AD power supplys, power supply line existing for this scheme
The interference for involving noise is all larger, these interference will be introduced directly into AD collection values (measured value), make measured value and sensor
Return value differs greatly and influences measurement accuracy and measure stability.
Utility model content
To solve the above problems, the purpose of this utility model is to provide a kind of, the high-precision based on pneumoelectric electron beam is high steady
Fixed novel detection circuit is built by using the high precision electro source chip and support circuit of model LTC6655 for measuring system
Vertical high-precision and high-stability reference power supply module, can make measured value closer to sensor return value, precision higher, stability is more
It is good.
Technical solution used by the invention for solving the technical problem is：
A kind of novel detection circuit of the high precision high stability based on pneumoelectric electron beam, it is characterised in that：At data
Manage module, data disaply moudle, the voltage input module for providing operating voltage, the LTC6655 for providing burning voltage
Power supply chip module, the pressure sensor module for obtaining pressure information, the operation for playing amplification to analog signal
Amplifier circuit module and analog-to-digital conversion module for carrying out analog-to-digital conversion；The LTC6655 power supply chips module, pressure pass
Sensor module, operation amplifier circuit module, analog-to-digital conversion module, data processing module and data disaply moudle are sequentially connected,
The voltage input module is also connected to LTC6655 power supply chips module, operation amplifier circuit module, analog-to-digital conversion mould simultaneously
Block, data processing module and data disaply moudle.
Further, the LTC6655 power supply chips module includes LTC6655 power supply chips, the first input capacitance, second
Input capacitance, the first output capacitance and the second output capacitance, the LTC6655 power supply chips include shutdown pinElectricity
Press input pin Vin, the first grounding pin, the second grounding pin, third grounding pin, first voltage output pin Vout_S,
Second voltage output pin Vout_F and the 4th grounding pin, the shutdown pinIt is same with voltage input pin Vin
When be connected to voltage input module, one end of first input capacitance is connected to shutdown pin simultaneouslyAnd control source
Pin Vin, the other end connect over the ground, and one end of second input capacitance is connected to shutdown pin simultaneouslyIt is defeated with voltage
Enter pin Vin, the other end connects over the ground, first grounding pin, the second grounding pin, third grounding pin and the 4th ground connection
Pin connects over the ground, and the first voltage output pin Vout_S and second voltage output pin Vout_F are connected simultaneously
To pressure sensor module, first output capacitance one end is connected to first voltage output pin Vout_S and second simultaneously
Voltage output pin Vout_F, the other end are connected to the 4th grounding pin, and second output capacitance one end is connected to simultaneously
One voltage output pin Vout_S and second voltage output pin Vout_F, the other end are connected to the 4th grounding pin.
Further, the operation amplifier circuit module includes TL082 dual operational amplifiers chip, the first amplifier electricity
Resistance, the second amplifier resistance, third amplifier resistance, four high guaily unit resistance, the 5th amplifier resistance, the 6th amplifier resistance, the first ground connection
Resistance, the second ground resistance, third ground resistance, the first slide rheostat, the second slide rheostat, the first amplifier capacitance,
Two amplifier capacitances, the first ground capacity, the second ground capacity, third ground capacity, the 4th ground capacity and zener diode, institute
It includes positive voltage pin Vcc+, negative voltage pin Vcc-, the first positive input pin to state TL082 dual operational amplifier chips
Non-Inverting input1, the first reversed input pin Inverting input1, the first output pin Output1,
Two positive input pin Non-Invertinginput2, the outputs of the second reversed input pin Inverting input2 and second
Pin Output2；The positive voltage pin Vcc+ and negative voltage pin Vcc- of the TL082 dual operational amplifiers chip are all connected with
To voltage input module, the negative voltage pin Vcc- is also connected by the first ground capacity over the ground, the described first positive input
Pin Non-Inverting input1 are connected over the ground by the first ground resistance, the first reversed input pin
Inverting input1 are connected to pressure sensor module, the first output pin Output1 by the first amplifier resistance
It is connected to the second reversed input pin Inverting input2, the first reversed input pin by four high guaily unit resistance
Inverting input1 also pass through the first amplifier capacitance connection to the first output pin Output1, the described first reversed input
Pin Inverting input1 also pass sequentially through the second amplifier resistance and the first slide rheostat is connected to the first output pin
One end of Output1, second ground capacity are connected to negative voltage pin Vcc-, and the other end connects over the ground, the voltage stabilizing two
The anode of pole pipe is connected to negative voltage pin Vcc- by third amplifier resistance, and cathode is connected to the one of the second slide rheostat
The cathode of a fixing end, the zener diode also connects over the ground, another fixing end connection of second slide rheostat
To the anode of zener diode, the sliding end of second slide rheostat is connected to the second positive input pin Non-
Inverting input2, the second forward direction input pin Non-Inverting input2 are also grounded by third respectively
Capacitance and the second ground resistance connect over the ground, and the second reversed input pin Inverting input2 also pass through second respectively
Amplifier capacitance and the 5th amplifier resistance are connected to the second output pin Output2, and the second output pin Output2 also passes through
6th amplifier resistance is connected to analog-to-digital conversion module, and the second output pin Output2 also passes through third ground resistance respectively
It is connected over the ground with the 4th ground capacity.
Further, the zener diode is LM385 serial model No. zener diodes.
Further, the TL082 dual operational amplifiers chip is TL082C dual operational amplifier chips.
Further, the data disaply moudle includes LED display module.
Further, the data disaply moudle includes LCD display module.
Further, the voltage input module includes control source plug, the first inductance, the 5th ground capacity, the 6th
Ground capacity, the 7th ground capacity and the 8th ground capacity, the control source plug include for inputting positive 12V voltages just
12V control sources port and negative 12V control sources port for inputting negative 12V voltages, one end connection of first inductance
To positive 12V control sources port, the other end is respectively connected to LTC6655 power supply chips module and operation amplifier circuit module,
And also connected over the ground by the 5th ground capacity and the 6th ground capacity respectively, the negative 12V control sources port is connected to fortune
Amplifier circuit module is calculated, and is also connected over the ground by the 7th ground capacity and the 8th ground capacity respectively.
The utility model has the beneficial effects that：A kind of high-precision based on pneumoelectric electron beam that the utility model uses is high steady
Fixed novel detection circuit, including data processing module, data disaply moudle, the control source mould for providing operating voltage
Block, the pressure sensor module for obtaining pressure information, is used the LTC6655 power supply chips module for providing burning voltage
The operation amplifier circuit module of amplification and the analog-to-digital conversion module for carrying out analog-to-digital conversion in analog signal.This
Utility model establishes high-precision by using the high precision electro source chip and support circuit of model LTC6655 for measuring system
High stability reference power supply module is different from 7805 serial regulated power supply chips on the market, using the height of model LTC6655
Much less than 7805 serial regulated power supply chip of the interference of power supply ripple and noise caused by precision power supply chip, can make
Measured value is closer to sensor return value, precision higher, and stability is more preferable.
Description of the drawings
The utility model is described in further detail with example below in conjunction with the accompanying drawings.
Fig. 1 is that a kind of circuit of novel detection circuit of the high precision high stability based on pneumoelectric electron beam of the utility model is former
Manage block diagram；
Fig. 2 is a kind of novel detection circuit of the high precision high stability based on pneumoelectric electron beam of the utility model
The annexation figure of the circuit components of LTC6655 power supply chip modules；
Fig. 3 is a kind of novel detection circuit of the high precision high stability based on pneumoelectric electron beam of the utility model
The interior block diagram of LTC6655 power supply chips in LTC6655 power supply chip modules；
Fig. 4 is that a kind of operation of the novel detection circuit of the high precision high stability based on pneumoelectric electron beam of the utility model is put
The annexation figure of the circuit components of big device circuit module；
Fig. 5 is that a kind of operation of the novel detection circuit of the high precision high stability based on pneumoelectric electron beam of the utility model is put
The pin schematic diagram of TL082 dual operational amplifier chips in big device circuit module；
Fig. 6 is that a kind of voltage of the novel detection circuit of the high precision high stability based on pneumoelectric electron beam of the utility model is defeated
Enter the annexation figure of the circuit components of module.
Specific implementation mode
- Fig. 6 referring to Fig.1, a kind of novel detection electricity of high precision high stability based on pneumoelectric electron beam of the utility model
Road.
Referring to Fig.1, a kind of novel detection circuit of the high precision high stability based on pneumoelectric electron beam, including data processing mould
Block 600, data disaply moudle 700, the voltage input module 100 for providing operating voltage, for providing burning voltage
LTC6655 power supply chips module 200, the pressure sensor module 300 for obtaining pressure information are put for being risen to analog signal
The operation amplifier circuit module 400 acted on greatly and the analog-to-digital conversion module 500 for carrying out analog-to-digital conversion；The LTC6655
Power supply chip module 200, pressure sensor module 300, operation amplifier circuit module 400, analog-to-digital conversion module 500, data
Processing module 600 and data disaply moudle 700 are sequentially connected, and the voltage input module 100 goes back while being connected to LTC6655 electricity
Source chip module 200, operation amplifier circuit module 400, analog-to-digital conversion module 500, data processing module 600 and data are shown
Module 700.
In the process of running, the LTC6655 power supply chips module 200 is capable of the input of receiving voltage input module 100
Voltage exports stable voltage to pressure sensor module 300 after carrying out steady pressure treatment, ensures 300 energy of pressure sensor module
It is enough more to detect to accurate stable that pressure signal, the pressure sensor module 300 receive extraneous pressure signal simultaneously
It is sent to the enhanced processing that operation amplifier circuit module 400 carries out analog signal, is further transmitted to analog-to-digital conversion module
500, pressure simulation signal is converted into digital signal and is sent to data processing module 600,600 meeting of the data processing module
Analyzing processing is carried out to digital signal, response is sent to data disaply moudle 700 and carries out real-time display.
Since LTC6655 power supply chips module 200 uses LTC6655 power supply chips 220, the LTC6655 power supplys core
Piece 220 has the characteristics that low noise, low drifting, high accuracy, suitable environment wide temperature range and low-power consumption automatic shutoff etc., this
Outside, LTC6655 power supply chips 220 are capable of providing remarkable noise and drift performance, and this low noise and drift are very suitable for
Test equipment.
The utility model is measuring system by using the high precision electro source chip and support circuit of model LTC6655
High-precision and high-stability reference power supply module is established, 7805 serial regulated power supply chips on the market are different from, using model
The interference of power supply ripple and noise caused by the high precision electro source chip of LTC6655 is fewer than 7805 serial regulated power supply chips
Much, measured value can be made closer to sensor return value, precision higher, stability is more preferable.
With reference to Fig. 2 and Fig. 3, further, the LTC6655 power supply chips module 200 includes LTC6655 power supply chips
220, the first input capacitance 211, the second input capacitance 212, the first output capacitance 231 and the second output capacitance 232, it is described
LTC6655 power supply chips 220 include shutdown pinVoltage input pin Vin, the first grounding pin, the second grounding lead
Foot, third grounding pin, first voltage output pin Vout_S, second voltage output pin Vout_F and the 4th grounding lead
Foot, the shutdown pinIt is connected to voltage input module 100 simultaneously with voltage input pin Vin, described first is defeated
Enter one end of capacitance 211 while being connected to shutdown pinWith voltage input pin Vin, the other end connects over the ground, described
One end of second input capacitance 212 is connected to shutdown pin simultaneouslyWith voltage input pin Vin, the other end connects over the ground
It connecing, first grounding pin, the second grounding pin, third grounding pin and the 4th grounding pin connect over the ground, and described
One voltage output pin Vout_S and second voltage output pin Vout_F is connected to pressure sensor module 300 simultaneously,
Described first output capacitance, 231 one end is connected to first voltage output pin Vout_S and second voltage output pin simultaneously
Vout_F, the other end are connected to the 4th grounding pin, and it is defeated that described second output capacitance, 232 one end is connected to first voltage simultaneously
Go out pin Vout_S and second voltage output pin Vout_F, the other end is connected to the 4th grounding pin.In Fig. 2 and Fig. 3,
The shutdown pinCorrespond to (1) port, voltage input pin Vin corresponds to (2) port, the first grounding pin corresponds to
(4) port is corresponded to for (3) port, the second grounding pin, third grounding pin corresponds to (5) port, first voltage output is drawn
Foot Vout_S corresponds to (6) port, second voltage output pin Vout_F corresponds to (7) port and the 4th grounding pin corresponds to
For (8) port.
With reference to Fig. 4 and Fig. 5, further, the operation amplifier circuit module 400 includes TL082 dual operational amplifiers
Chip 410, the first amplifier resistance 421, the second amplifier resistance 422, third amplifier resistance 423, four high guaily unit resistance the 424, the 5th
Amplifier resistance 425, the 6th amplifier resistance 426, the first ground resistance 431, the second ground resistance 432, third ground resistance 433,
First slide rheostat 441, the second slide rheostat 442, the first amplifier capacitance 451, the second amplifier capacitance 452, first ground connection
Capacitance 461, the second ground capacity 462, third ground capacity 463, the 4th ground capacity 464 and zener diode 470, it is described
TL082 dual operational amplifiers chip 410 includes positive voltage pin Vcc+, negative voltage pin Vcc-, the first positive input pin
Non-Inverting input1, the first reversed input pin Inverting input1, the first output pin Output1,
Two positive input pin Non-Inverting input2, the second reversed input pin Inverting input2 and second are defeated
Go out pin Output2；The positive voltage pin Vcc+ and negative voltage pin Vcc- of the TL082 dual operational amplifiers chip 410 are equal
It is connected to voltage input module 100, the negative voltage pin Vcc- is also connected by the first ground capacity 461 over the ground, and described
One forward direction input pin Non-Inverting input1 are connected over the ground by the first ground resistance 431, and described first is reversed defeated
Enter pin Inverting input1 and pressure sensor module 300, first output are connected to by the first amplifier resistance 421
Pin Output1 is connected to the second reversed input pin Inverting input2 by four high guaily unit resistance 424, and described first
Reversed input pin Inverting input1 are also connected to the first output pin Output1, institute by the first amplifier capacitance 451
It states the first reversed input pin Inverting input1 and also passes sequentially through the second amplifier resistance 422 and the first slide rheostat
441 are connected to the first output pin Output1, and one end of second ground capacity 462 is connected to negative voltage pin Vcc-,
The other end connects over the ground, and the anode of the zener diode 470 is connected to negative voltage pin by third amplifier resistance 423
Vcc-, cathode are connected to a fixing end of the second slide rheostat 442, and the cathode of the zener diode 470 also connects over the ground
It connects, another fixing end of second slide rheostat 442 is connected to the anode of zener diode 470, second sliding
The sliding end of rheostat 442 is connected to the second forward direction input pin Non-Inverting input2, the described second positive input
Pin Non-Inverting input2 are also connected by third ground capacity 463 and the second ground resistance 432 over the ground respectively,
The second reversed input pin Inverting input2 also pass through the second amplifier capacitance 452 and the 5th amplifier resistance respectively
425, which are connected to the second output pin Output2, the second output pin Output2, is also connected by the 6th amplifier resistance 426
To analog-to-digital conversion module 500, the second output pin Output2 is also grounded by third ground resistance 433 and the 4th respectively
Capacitance 464 connects over the ground.In Fig. 4 and Fig. 5, the positive voltage pin Vcc+ corresponds to (8 ') port, negative voltage pin Vcc-
Correspond to (4 ') port, the first forward direction input pin Non-Inverting input1 correspond to (3 ') port, first reversed defeated
Enter that pin Inverting input1 correspond to (2 ') port, the first output pin Output1 is corresponding to (1 ') port, second just
(5 ') port, the second reversed input pin Inverting are corresponded to input pin Non-Inverting input2
Input2 corresponds to (6 ') port and the second output pin Output2 corresponds to (7 ') port.
TL082 dual operational amplifiers chip 410 is a general J-FET dual operational amplifiers.Its feature has：It is lower
Input offset voltage and drift current；Output is equipped with short-circuit protection；Input stage has higher input impedance；Built-in frequency compensation
Circuit；Higher slew rate.Maximum working voltage：+-18V.In addition, by adjusting first slide rheostat 441 and the
The swept resistance value of two slide rheostats 442 can adjust the signal amplification effect of operation amplifier circuit module 400.
Further, the zener diode 470 is LM385 serial model No. zener diodes.The LM385 serial model No.s
Zener diode is micropower youngster end bandgap regulator diode, and the wide-range current of 20MA, tool are arrived in design work in 10 microamperes
Have a low-down motional impedance, low noise and at any time with temperature steady operation.It may be implemented by fine tuning in piece stringent
The opereating specification of voltage error, the device Larger Dynamic makes it is suitable for the prodigious power supply of variation range and has excellent adjustment capability
Application scenario.
Further, the TL082 dual operational amplifiers chip 410 is TL082C dual operational amplifier chips.
Further, the data disaply moudle 700 includes LED display module.
Further, the data disaply moudle 700 includes LCD display module.
With reference to Fig. 6, further, the voltage input module 100 include control source plug 110, the first inductance 120,
5th ground capacity 130, the 6th ground capacity 140, the 7th ground capacity 150 and the 8th ground capacity 160, the control source
Plug 110 includes the positive 12V control sources port for inputting positive 12V voltages and the negative 12V voltages for inputting negative 12V voltages
One end of input port, first inductance 120 is connected to positive 12V control sources port, and the other end is respectively connected to LTC6655
Power supply chip module 200 and operation amplifier circuit module 400, and be also grounded respectively by the 5th ground capacity 130 and the 6th
Capacitance 140 connects over the ground, and the negative 12V control sources port is connected to operation amplifier circuit module 400, and also passes through respectively
7th ground capacity 150 and the 8th ground capacity 160 connect over the ground.In Fig. 6, the positive 12V control sources port corresponds to
The ports VCC+12V, negative 12V control sources port correspond to the ports VCC-12V.
The above, the only preferred embodiment of the utility model, the utility model are not limited to above-mentioned implementation
Mode should all belong to the scope of protection of the utility model as long as it reaches the technique effect of the utility model with identical means.
Claims (8)
1. a kind of novel detection circuit of the high precision high stability based on pneumoelectric electron beam, it is characterised in that：Including data processing
Module (600), data disaply moudle (700), the voltage input module (100) for providing operating voltage, for providing stabilization
The LTC6655 power supply chips module (200) of voltage, is used for mould the pressure sensor module (300) for obtaining pressure information
The operation amplifier circuit module (400) and the analog-to-digital conversion module for carrying out analog-to-digital conversion that quasi- signal plays amplification
(500)；The LTC6655 power supply chips module (200), pressure sensor module (300), operation amplifier circuit module
(400), analog-to-digital conversion module (500), data processing module (600) and data disaply moudle (700) are sequentially connected, the voltage
Input module (100) is gone back while being connected to LTC6655 power supply chips module (200), operation amplifier circuit module (400), mould
Number conversion module (500), data processing module (600) and data disaply moudle (700).
2. a kind of novel detection circuit of high precision high stability based on pneumoelectric electron beam according to claim 1, special
Sign is：The LTC6655 power supply chips module (200) includes LTC6655 power supply chips (220), the first input capacitance
(211), the second input capacitance (212), the first output capacitance (231) and the second output capacitance (232), the LTC6655 power supplys
Chip (220) includes shutdown pinVoltage input pin (Vin), the first grounding pin, the second grounding pin,
Three grounding pins, first voltage output pin (Vout_S), second voltage output pin (Vout_F) and the 4th grounding pin, institute
State shutdown pinIt is connected to voltage input module (100) simultaneously with voltage input pin (Vin), described first is defeated
Enter one end of capacitance (211) while being connected to shutdown pinWith voltage input pin (Vin), the other end connects over the ground
It connects, one end of second input capacitance (212) is connected to shutdown pin simultaneouslyWith voltage input pin (Vin),
The other end connects over the ground, and first grounding pin, the second grounding pin, third grounding pin and the 4th grounding pin are over the ground
Connection, the first voltage output pin (Vout_S) and second voltage output pin (Vout_F) are connected to pressure biography simultaneously
Sensor module (300), described first output capacitance (231) one end are connected to first voltage output pin (Vout_S) and simultaneously
Two voltage output pins (Vout_F), the other end are connected to the 4th grounding pin, and described second output capacitance (232) one end is simultaneously
It is connected to first voltage output pin (Vout_S) and second voltage output pin (Vout_F), the other end is connected to the 4th ground connection
Pin.
3. a kind of novel detection circuit of high precision high stability based on pneumoelectric electron beam according to claim 1, special
Sign is：The operation amplifier circuit module (400) includes TL082 dual operational amplifiers chip (410), the first amplifier resistance
(421), the second amplifier resistance (422), third amplifier resistance (423), four high guaily unit resistance (424), the 5th amplifier resistance
(425), the 6th amplifier resistance (426), the first ground resistance (431), the second ground resistance (432), third ground resistance
(433), the first slide rheostat (441), the second slide rheostat (442), the first amplifier capacitance (451), the second amplifier capacitance
(452), the first ground capacity (461), the second ground capacity (462), third ground capacity (463), the 4th ground capacity (464)
With zener diode (470), the TL082 dual operational amplifiers chip (410) includes that positive voltage pin (Vcc+), negative voltage draw
Foot (Vcc-), the first positive input pin (Non-Inverting input1), the first reversed input pin (Inverting
Input1), the first output pin (Output1), the second positive input pin (Non-Inverting input2), second reversed
Input pin (Inverting input2) and the second output pin (Output2)；The TL082 dual operational amplifiers chip
(410) positive voltage pin (Vcc+) and negative voltage pin (Vcc-) is connected to voltage input module (100), the negative voltage
Pin (Vcc-) is also connected by the first ground capacity (461) over the ground, the described first positive input pin (Non-Inverting
Input1 it) is connected over the ground by the first ground resistance (431), the first reversed input pin (Inverting input1) is logical
It crosses the first amplifier resistance (421) and is connected to pressure sensor module (300), first output pin (Output1) passes through
Four high guaily unit resistance (424) is connected to the second reversed input pin (Inverting input2), the first reversed input pin
(Inverting input1) is also connected to the first output pin (Output1) by the first amplifier capacitance (451), and described first
Reversed input pin (Inverting input1) also passes sequentially through the second amplifier resistance (422) and the first slide rheostat
(441) it is connected to the first output pin (Output1), one end of second ground capacity (462) is connected to negative voltage pin
(Vcc-), the other end connects over the ground, and the anode of the zener diode (470) is connected to negative by third amplifier resistance (423)
Voltage pin (Vcc-), cathode are connected to a fixing end of the second slide rheostat (442), the zener diode (470)
Cathode also connect over the ground, another fixing end of second slide rheostat (442) is connected to zener diode (470)
The sliding end of anode, second slide rheostat (442) is connected to the second positive input pin (Non-Inverting
Input2), the described second positive input pin (Non-Inverting input2) also passes through third ground capacity (463) respectively
It is connected over the ground with the second ground resistance (432), the second reversed input pin (Inverting input2) also passes through respectively
Second amplifier capacitance (452) and the 5th amplifier resistance (425) are connected to the second output pin (Output2), second output
Pin (Output2) is also connected to analog-to-digital conversion module (500), second output pin by the 6th amplifier resistance (426)
(Output2) it is also connected over the ground by third ground resistance (433) and the 4th ground capacity (464) respectively.
4. a kind of novel detection circuit of high precision high stability based on pneumoelectric electron beam according to claim 3, special
Sign is：The zener diode (470) is LM385 serial model No. zener diodes.
5. a kind of novel detection circuit of high precision high stability based on pneumoelectric electron beam according to claim 3, special
Sign is：The TL082 dual operational amplifiers chip (410) is TL082C dual operational amplifier chips.
6. a kind of novel detection circuit of high precision high stability based on pneumoelectric electron beam according to claim 1, special
Sign is：The data disaply moudle (700) includes LED display module.
7. a kind of novel detection circuit of high precision high stability based on pneumoelectric electron beam according to claim 1, special
Sign is：The data disaply moudle (700) includes LCD display module.
8. a kind of novel detection circuit of high precision high stability based on pneumoelectric electron beam according to claim 1, special
Sign is：The voltage input module (100) includes control source plug (110), the first inductance (120), the 5th ground capacity
(130), the 6th ground capacity (140), the 7th ground capacity (150) and the 8th ground capacity (160), the control source plug
(110) include that the positive 12V control sources port for inputting positive 12V voltages and the negative 12V voltages for inputting negative 12V voltages are defeated
One end of inbound port, first inductance (120) is connected to positive 12V control sources port, and the other end is respectively connected to LTC6655
Power supply chip module (200) and operation amplifier circuit module (400), and also pass through the 5th ground capacity (130) and respectively
Six ground capacities (140) connect over the ground, and the negative 12V control sources port is connected to operation amplifier circuit module (400), and
Also connected over the ground by the 7th ground capacity (150) and the 8th ground capacity (160) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820614045.1U CN208091399U (en) | 2018-04-26 | 2018-04-26 | A kind of novel detection circuit of the high precision high stability based on pneumoelectric electron beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820614045.1U CN208091399U (en) | 2018-04-26 | 2018-04-26 | A kind of novel detection circuit of the high precision high stability based on pneumoelectric electron beam |
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