CN109938771A - Three-dimensional basin baselap acoustic image processing control system - Google Patents
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Abstract
The invention discloses three-dimensional basin baselap acoustic image processing control systems, including frequency collection circuit, divide rectification circuit and signal output apparatus, the frequency collection circuit acquires controlling terminal in three-dimensional basin baselap acoustic image processing control system and receives signal frequency of the signal in signal transmission passage input terminal, the frequency dividing rectification circuit uses triode Q2, signal is divided into the two paths of signals of same amplitude different frequency by triode Q1 and capacitor C5- capacitor C8 composition frequency dividing circuit, transport and placing device AR1 is used simultaneously, transport and placing device AR2 forms differential comparison circuit to two paths of signals difference processing, the last signal output apparatus uses triode Q6, triode Q7 and resistance R16, resistance R17 forms the anti-stop signal saturation distortion of compound circuit, it can be to controlling terminal in three-dimensional basin baselap acoustic image processing control system The automatic amplitude modulation calibration of signal in signal signal transmission passage is received, distorted signals is prevented.
Description
Technical field
The present invention relates to field of circuit technology, more particularly to three-dimensional basin baselap acoustic image processing control system.
Background technique
Currently, perineum three-dimensional basin baselap sound is routine inspection project in gynecological clinic, it is post menopausal and pelvic organ
Musculus levator ani ceasma form and the structure change of patients with prolapse provide useful data, for clinical diagnosis, prevent, treat and provide side
It helps, has application value on research pelvic floor structure, therefore three-dimensional basin baselap acoustic image processing control system is with highly important
Research significance, in actual use, controlling terminal receives signal and is passed with signal in three-dimensional basin baselap acoustic image processing control system
Signal often will appear signal relaxation phenomenon in transmission process in defeated channel, even result in distorted signals, cause three-dimensional basin bottom
Ultrasound image processing control system data analytical error is larger, seriously affects three-dimensional basin baselap acoustic image processing control system and promotes
It uses.
So the present invention provides the new scheme of one kind to solve the problems, such as this.
Summary of the invention
For above situation, for the defect for overcoming the prior art, purpose of the present invention is to provide three-dimensional basin baselap sound spectrograms
As processing control system, have be skillfully constructed, the characteristic of human oriented design, can to three-dimensional basin baselap acoustic image processing control be
Controlling terminal receives the automatic amplitude modulation calibration of signal in signal signal transmission passage in system, prevents distorted signals.
Its technical solution solved is three-dimensional basin baselap acoustic image processing control system, including frequency collection circuit, frequency dividing
Rectification circuit and signal output apparatus, the frequency collection circuit acquires to be controlled in three-dimensional basin baselap acoustic image processing control system
Signal frequency of the terminal received signals in signal transmission passage input terminal, the signal transmission passage are three-dimensional basin baselap acoustic image
The analog signal channel that controlling terminal in control system receives signal acquisition module signal is handled, with resistance R3- resistance R5
Filter out the signal of single-frequency with capacitor C2- capacitor C4 composition frequency selection circuit, the frequency dividing rectification circuit use triode Q2,
Signal is divided into the two paths of signals of same amplitude different frequency, a road transport by triode Q1 and capacitor C5- capacitor C8 composition frequency dividing circuit
With diode D1, diode D2 and variable resistance RW1 composition rectification circuit to signal rectification, two road transports triode Q4, three poles
Pipe Q5 and voltage-stabiliser tube D5, capacitor C21 form constant-current circuit stabilization signal, while poor with transport and placing device AR1, transport and placing device AR2 composition
Divide comparison circuit to two paths of signals difference processing, and defeated with triode Q3, triode Q8 feedback regulation differential comparison circuit
Signal potential out, the last signal output apparatus are compound with triode Q6, triode Q7 and resistance R16, resistance R17 composition
The anti-stop signal saturation distortion of circuit, output signal are that controlling terminal receives letter in three-dimensional basin baselap acoustic image processing control system
Number with the thermal compensation signal of signal in signal transmission passage input terminal；
The frequency dividing rectification circuit includes triode Q2, the base stage of triode Q2 connect capacitor C5, resistance R7, resistance R8 one end and
The collector of resistance R10, resistance R11, one end of capacitor C21 and triode Q1, the emitter connecting resistance R6's of triode Q2
The other end of one end and resistance R7, another termination capacitor C5, the capacitor C6 other end of resistance R6, another termination electricity of resistance R8
Hold C8 one end and triode Q1 base stage, one end of the emitter connecting resistance R9 of triode Q1, resistance R9, capacitor C8 it is another
End ground connection, one end of the collector connecting resistance R21 of triode Q2, capacitor C7, another termination power+5V, capacitor C7 of resistance R21
The anode of another terminating diode D1, the cathode of diode D2 and capacitor C9, capacitor C20 one end, the cathode of diode Q1
The contact 2 of variable resistance RW1 and the other end of capacitor C9 are connect, the contact 1 of variable resistance RW1 connects the other end and two of capacitor C20
The anode of pole pipe D2, the contact 3 of variable resistance RW1 connect the inverting input terminal of transport and placing device AR1 and the collector of triode Q3, amplifier
One end of the homophase input terminating resistor R12 of device AR1, resistance R24, the other end ground connection of resistance R12, the output of transport and placing device AR1
One end of the other end of terminating resistor R24 and resistance R14, triode Q3 base stage, another terminating diode D3's of resistance R10
Anode, the cathode of diode D3 connect the collector of the base stage of triode Q4 and the emitter of triode Q8, triode Q5, triode
The other end of the emitter connecting resistance R11 of Q4, the collector of triode Q4 connect the other end of capacitor C21 and the base of triode Q5
Pole, voltage-stabiliser tube D5 cathode, one end of the positive connecting resistance R13 of voltage-stabiliser tube D5 and the anode of diode D4, resistance R13's is another
The emitter of triode Q5 is terminated, the cathode of diode D3 connects the base stage of triode Q8 and the non-inverting input terminal of transport and placing device AR2, and three
The anode of the cathode of the emitter of the collector connecting transistor Q3 of pole pipe Q8 and diode D3, diode D6, transport and placing device AR2's is anti-
Mutually input terminating resistor R14 the other end and resistance R15 one end, transport and placing device AR2 output terminating resistor R15 the other end and
The cathode of the anode of diode D7, diode D6.
Due to the use of above technical scheme, the present invention has the following advantages that compared with prior art；
1, signal is divided into same amplitude different frequencies with triode Q2, triode Q1 and capacitor C5- capacitor C8 composition frequency dividing circuit
Signal is divided into two-way by the two paths of signals of rate, the time-lag action using resistance R8, capacitor C8 and triode Q1, in combination with three poles
Pipe Q2 and capacitor C5- capacitor C7 composition FM circuit reaches the two-way that signal is divided into same amplitude different frequency to signal frequency modulation
The effect of signal, capacitor C5, capacitor C6 are shunt capacitance, filter out high-frequency signal noise, and capacitor C7 is decoupling capacitor, filter out low frequency
Signal noise eliminates signal self-excitation；
2, it, can power transformation by adjusting with diode D1, diode D2 and variable resistance RW1 composition rectification circuit to signal rectification
The amplitude for hindering the adjustable rectification circuit output signal of resistance value size of RW1, with triode Q4, triode Q5 and voltage-stabiliser tube
D5, capacitor C21 form constant-current circuit stabilization signal, and voltage-stabiliser tube D5 stablizes triode Q5 base stage, triode Q4 collector potential, protect
It is constant to demonstrate,prove triode Q5 emitter signal, plays the effect of constant current, while forming differential ratio with transport and placing device AR1, transport and placing device AR2
Compared with circuit to two paths of signals difference processing, handled using two-pass DINSAR, it can be with stabilization signal quiescent point；
3. anti-with triode Q3, triode Q8 in order to guarantee that transport and placing device AR2 output amplitude meets the requirement of thermal compensation signal
Feedback adjusts differential comparison circuit output signal current potential, while in order to protect triode Q3, triode Q8, first with diode D7,
Diode D6 forms limit circuit and limits signal potential, and triode Q8 is detection signal high level, when signal is abnormal high level
When, triode Q8 is connected, and at feedback signal to triode Q4 base stage, by reducing triode Q5 emitter potential, plays reduction
Transport and placing device AR2 output amplitude, when signal is abnormal low level, triode Q3 is connected, and feedback signal is anti-to transport and placing device AR1
In phase input terminal, transport and placing device AR2 output amplitude is improved, the effect of the automatic amplitude modulation calibration to signal is realized, prevents letter
Number distortion.
Detailed description of the invention
Fig. 1 is the module map of the three-dimensional basin baselap acoustic image processing control system of the present invention.
Fig. 2 is the schematic diagram of the three-dimensional basin baselap acoustic image processing control system of the present invention.
Fig. 3 is that the three-dimensional basin baselap acoustic image processing control system of the present invention divides rectification circuit schematic diagram.
Specific embodiment
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to figures 1 through attached drawing 3
To in the detailed description of embodiment, can clearly present.The structure content being previously mentioned in following embodiment is with specification
Attached drawing is reference.
Embodiment one, three-dimensional basin baselap acoustic image processing control system, including frequency collection circuit, frequency dividing rectification circuit and
Signal output apparatus, the frequency collection circuit acquire controlling terminal in three-dimensional basin baselap acoustic image processing control system and receive letter
Number with the signal frequency in signal transmission passage input terminal, which is three-dimensional basin baselap acoustic image processing control system
Controlling terminal receives the analog signal channel of signal acquisition module signal in system, with resistance R3- resistance R5 and capacitor C2- electricity
Hold C4 composition frequency selection circuit and filter out the signal of single-frequency, the frequency dividing rectification circuit use triode Q2, triode Q1 and
Signal is divided into the two paths of signals of same amplitude different frequency by capacitor C5- capacitor C8 composition frequency dividing circuit, uses diode all the way
D1, diode D2 and variable resistance RW1 composition rectification circuit are to signal rectification, two road transports triode Q4, triode Q5 and steady
Pressure pipe D5, capacitor C21 form constant-current circuit stabilization signal, while with transport and placing device AR1, transport and placing device AR2 composition differential comparison electricity
Road uses triode Q3, triode Q8 feedback regulation differential comparison circuit output signal electricity to two paths of signals difference processing
Position, the last signal output apparatus are prevented with triode Q6, triode Q7 and resistance R16, resistance R17 composition compound circuit
Signal saturation distortion, output signal are that controlling terminal receives signal signal in three-dimensional basin baselap acoustic image processing control system
The thermal compensation signal of signal in transmission channel input terminal；
The frequency dividing rectification circuit divides signal with triode Q2, triode Q1 and capacitor C5- capacitor C8 composition frequency dividing circuit
For the two paths of signals of same amplitude different frequency, signal is divided into two by the time-lag action using resistance R8, capacitor C8 and triode Q1
Road reaches signal being divided into same amplitude in combination with triode Q2 and capacitor C5- capacitor C7 composition FM circuit to signal frequency modulation
The effect of the two paths of signals of different frequency, capacitor C5, capacitor C6 are shunt capacitance, filter out high-frequency signal noise, and capacitor C7 is to go
Coupling capacitor filters out low frequency signal noise, eliminates signal self-excitation, uses diode D1, diode D2 and variable resistance RW1 group all the way
At rectification circuit to signal rectification, by the adjustable rectification circuit output signal of resistance value size for adjusting variable resistance RW1
Amplitude, two road transports triode Q4, triode Q5 and voltage-stabiliser tube D5, capacitor C21 form constant-current circuit stabilization signal, voltage-stabiliser tube D5
Stablize triode Q5 base stage, triode Q4 collector potential, guarantees that triode Q5 emitter signal is constant, play the effect of constant current
Fruit, while two-pass DINSAR is utilized to two paths of signals difference processing with transport and placing device AR1, transport and placing device AR2 composition differential comparison circuit
Processing, can with stabilization signal quiescent point, in order to guarantee that transport and placing device AR2 output amplitude meets the requirement of thermal compensation signal,
With triode Q3, triode Q8 feedback regulation differential comparison circuit output signal current potential, while in order to protect triode Q3, three
Pole pipe Q8, first limits signal potential with diode D7, diode D6 composition limit circuit, and triode Q8 is the high electricity of detection signal
Flat, when signal is abnormal high level, triode Q8 is connected, and at feedback signal to triode Q4 base stage, passing through reduces triode
Q5 emitter potential, playing reduces transport and placing device AR2 output amplitude, when signal is abnormal low level, triode Q3 conducting,
In feedback signal to transport and placing device AR1 inverting input terminal, transport and placing device AR2 output amplitude is improved, is realized to the automatic of signal
The effect of amplitude modulation calibration；
The frequency dividing rectification circuit specific structure, the base stage of triode Q2 connect capacitor C5, resistance R7, one end of resistance R8 and resistance
The collector of R10, resistance R11, one end of capacitor C21 and triode Q1, one end of the emitter connecting resistance R6 of triode Q2
With the other end of resistance R7, another termination capacitor C5, the capacitor C6 other end of resistance R6, another termination capacitor C8 of resistance R8
One end and triode Q1 base stage, one end of the emitter connecting resistance R9 of triode Q1, another termination of resistance R9, capacitor C8
Ground, one end of the collector connecting resistance R21 of triode Q2, capacitor C7, another termination power+5V of resistance R21, capacitor C7's is another
One end of the anode of one terminating diode D1, the cathode of diode D2 and capacitor C9, capacitor C20, the cathode of diode Q1 connects can
Power transformation hinders the contact 2 of RW1 and the other end of capacitor C9, and the contact 1 of variable resistance RW1 connects the other end and diode of capacitor C20
The anode of D2, the contact 3 of variable resistance RW1 connect the inverting input terminal of transport and placing device AR1 and the collector of triode Q3, transport and placing device
One end of the homophase input terminating resistor R12 of AR1, resistance R24, the other end ground connection of resistance R12, the output end of transport and placing device AR1
One end of the other end of connecting resistance R24 and resistance R14, triode Q3 base stage, another terminating diode D3 of resistance R10 is just
Pole, the cathode of diode D3 meet the collector of the base stage of triode Q4 and the emitter of triode Q8, triode Q5, triode Q4
Emitter connecting resistance R11 the other end, the collector of triode Q4 connect the other end of capacitor C21 and the base stage of triode Q5,
The cathode of voltage-stabiliser tube D5, one end of the positive connecting resistance R13 of voltage-stabiliser tube D5 and the anode of diode D4, the other end of resistance R13
The emitter of triode Q5 is connect, the cathode of diode D3 connects the base stage of triode Q8 and the non-inverting input terminal of transport and placing device AR2, three poles
The anode of the cathode of the emitter of the collector connecting transistor Q3 of pipe Q8 and diode D3, diode D6, the reverse phase of transport and placing device AR2
Input the other end of terminating resistor R14 and one end of resistance R15, the other end and two of the output terminating resistor R15 of transport and placing device AR2
The cathode of the anode of pole pipe D7, diode D6.
Embodiment two, on the basis of example 1, the signal output apparatus use triode Q6, triode Q7 and electricity
It hinders R16, resistance R17 and forms the anti-stop signal saturation distortion of compound circuit, output signal is three-dimensional basin baselap acoustic image processing control
Controlling terminal receives the thermal compensation signal of signal in signal signal transmission passage input terminal in system, in the way of thermal compensation signal
Adjustment signal current potential, the decaying of anti-stop signal, distortion, one end of the base stage connecting resistance R16 of triode Q6, resistance R17, triode Q6
Collector connecting resistance R18 one end, another termination power+5V of resistance R16, resistance R18, the emitter of triode Q6 connects three
The emitter of pole pipe Q7 and one end of resistance R19, the other end of the base stage connecting resistance R17 of triode Q7, the current collection of triode Q7
Pole connects one end of variable resistance R20, the other end ground connection of variable resistance R20, another termination signal output port of resistance R19.
Embodiment three, on the basis of example 1, the frequency collection circuit select the frequency of model SJ-ADC to adopt
Storage J1 acquires controlling terminal in three-dimensional basin baselap acoustic image processing control system and receives signal signal transmission passage input terminal
Interior signal frequency, the signal transmission passage are that controlling terminal reception signal is adopted in three-dimensional basin baselap acoustic image processing control system
The analog signal channel for collecting module by signal is filtered out with resistance R3- resistance R5 and capacitor C2- capacitor C4 composition frequency selection circuit
The signal of single-frequency, for frequency dividing rectification circuit pretreatment, one end of the power supply termination capacitor C1 of frequency collection device J1, resistance R1
With power supply+5V, the ground terminal of frequency collection device J1 is grounded, the output terminating resistor R1 of frequency collection device J1, capacitor C1 it is another
The one end at end and resistance R2, one end of another terminating resistor R3 of resistance R2, capacitor C2, another terminating resistor R4 of resistance R3,
One end of capacitor C4, one end of another terminating resistor R5 of capacitor C2, capacitor C3, the other end ground connection of resistance R5, capacitor C4, electricity
Hinder the base stage of another termination triode Q2 of R4, capacitor C3.
When the present invention is specifically used, three-dimensional basin baselap acoustic image processing control system, including frequency collection circuit, frequency dividing are whole
Current circuit and signal output apparatus, the frequency collection circuit acquires to be controlled eventually in three-dimensional basin baselap acoustic image processing control system
Signal frequency of the termination collection of letters number in signal transmission passage input terminal, the signal transmission passage are at three-dimensional basin baselap acoustic image
Manage the analog signal channel that controlling terminal in control system receives signal acquisition module signal, with resistance R3- resistance R5 and
Capacitor C2- capacitor C4 composition frequency selection circuit filters out the signal of single-frequency, and the frequency dividing rectification circuit uses triode Q2, three
Signal is divided into the two paths of signals of same amplitude different frequency by pole pipe Q1 and capacitor C5- capacitor C8 composition frequency dividing circuit, utilizes resistance
Signal is divided into two-way by the time-lag action of R8, capacitor C8 and triode Q1, in combination with triode Q2 and capacitor C5- capacitor C7 group
At FM circuit to signal frequency modulation, achieve the effect that the two paths of signals that signal is divided into same amplitude different frequency, capacitor C5, capacitor
C6 is shunt capacitance, filters out high-frequency signal noise, and capacitor C7 is decoupling capacitor, filters out low frequency signal noise, eliminates signal self-excitation,
All the way with diode D1, diode D2 and variable resistance RW1 composition rectification circuit to signal rectification, by adjusting variable resistance
The amplitude of the adjustable rectification circuit output signal of the resistance value size of RW1, two road transports triode Q4, triode Q5 and voltage-stabiliser tube
D5, capacitor C21 form constant-current circuit stabilization signal, and voltage-stabiliser tube D5 stablizes triode Q5 base stage, triode Q4 collector potential, protect
It is constant to demonstrate,prove triode Q5 emitter signal, plays the effect of constant current, while forming differential ratio with transport and placing device AR1, transport and placing device AR2
Compared with circuit to two paths of signals difference processing, handled using two-pass DINSAR, it can be with stabilization signal quiescent point, in order to guarantee amplifier
Device AR2 output amplitude meets the requirement of thermal compensation signal, with triode Q3, triode Q8 feedback regulation differential comparison circuit
Output signal current potential, while in order to protect triode Q3, triode Q8, first with diode D7, diode D6 composition limit electricity
Road limits signal potential, and triode Q8 is detection signal high level, when signal is abnormal high level, triode Q8 conducting, instead
At feedback signal to triode Q4 base stage, by reducing triode Q5 emitter potential, playing reduces the vibration of transport and placing device AR2 output signal
Width, when signal is abnormal low level, triode Q3 is connected, and in feedback signal to transport and placing device AR1 inverting input terminal, improves amplifier
Device AR2 output amplitude, realizes the effect of the automatic amplitude modulation calibration to signal, and the last signal output apparatus uses three
Pole pipe Q6, triode Q7 and resistance R16, resistance R17 form the anti-stop signal saturation distortion of compound circuit, and output signal is three-dimensional basin
Controlling terminal receives the thermal compensation signal of signal in signal signal transmission passage input terminal in baselap acoustic image processing control system.
The above is that further detailed description of the invention, and it cannot be said that the present invention in conjunction with specific embodiment
Specific implementation is limited only to this；Belonging to the present invention and for those skilled in the technology concerned, it is being based on skill of the present invention
Under the premise of art scheme thinking, it is made expansion and operating method, data replacement, should all fall in the scope of the present invention it
It is interior.
Claims (3)
1. three-dimensional basin baselap acoustic image processing control system, including frequency collection circuit, frequency dividing rectification circuit and signal output electricity
Road, which is characterized in that the frequency collection circuit acquires controlling terminal in three-dimensional basin baselap acoustic image processing control system and receives
Signal frequency of the signal in signal transmission passage input terminal, the signal transmission passage are three-dimensional basin baselap acoustic image processing control
Controlling terminal receives the analog signal channel of signal acquisition module signal in system, with resistance R3- resistance R5 and capacitor C2-
Capacitor C4 composition frequency selection circuit filters out the signal of single-frequency, and the frequency dividing rectification circuit uses triode Q2, triode Q1
Signal is divided into the two paths of signals of same amplitude different frequency with capacitor C5- capacitor C8 composition frequency dividing circuit, uses diode all the way
D1, diode D2 and variable resistance RW1 composition rectification circuit are to signal rectification, two road transports triode Q4, triode Q5 and steady
Pressure pipe D5, capacitor C21 form constant-current circuit stabilization signal, while with transport and placing device AR1, transport and placing device AR2 composition differential comparison electricity
Road uses triode Q3, triode Q8 feedback regulation differential comparison circuit output signal electricity to two paths of signals difference processing
Position, the last signal output apparatus are prevented with triode Q6, triode Q7 and resistance R16, resistance R17 composition compound circuit
Signal saturation distortion, output signal are that controlling terminal reception signal is passed with signal in three-dimensional basin baselap acoustic image processing control system
The thermal compensation signal of signal in defeated path input；
The frequency dividing rectification circuit includes triode Q2, the base stage of triode Q2 connect capacitor C5, resistance R7, resistance R8 one end and
The collector of resistance R10, resistance R11, one end of capacitor C21 and triode Q1, the emitter connecting resistance R6's of triode Q2
The other end of one end and resistance R7, another termination capacitor C5, the capacitor C6 other end of resistance R6, another termination electricity of resistance R8
Hold C8 one end and triode Q1 base stage, one end of the emitter connecting resistance R9 of triode Q1, resistance R9, capacitor C8 it is another
End ground connection, one end of the collector connecting resistance R21 of triode Q2, capacitor C7, another termination power+5V, capacitor C7 of resistance R21
The anode of another terminating diode D1, the cathode of diode D2 and capacitor C9, capacitor C20 one end, the cathode of diode Q1
The contact 2 of variable resistance RW1 and the other end of capacitor C9 are connect, the contact 1 of variable resistance RW1 connects the other end and two of capacitor C20
The anode of pole pipe D2, the contact 3 of variable resistance RW1 connect the inverting input terminal of transport and placing device AR1 and the collector of triode Q3, amplifier
One end of the homophase input terminating resistor R12 of device AR1, resistance R24, the other end ground connection of resistance R12, the output of transport and placing device AR1
One end of the other end of terminating resistor R24 and resistance R14, triode Q3 base stage, another terminating diode D3's of resistance R10
Anode, the cathode of diode D3 connect the collector of the base stage of triode Q4 and the emitter of triode Q8, triode Q5, triode
The other end of the emitter connecting resistance R11 of Q4, the collector of triode Q4 connect the other end of capacitor C21 and the base of triode Q5
Pole, voltage-stabiliser tube D5 cathode, one end of the positive connecting resistance R13 of voltage-stabiliser tube D5 and the anode of diode D4, resistance R13's is another
The emitter of triode Q5 is terminated, the cathode of diode D3 connects the base stage of triode Q8 and the non-inverting input terminal of transport and placing device AR2, and three
The anode of the cathode of the emitter of the collector connecting transistor Q3 of pole pipe Q8 and diode D3, diode D6, transport and placing device AR2's is anti-
Mutually input terminating resistor R14 the other end and resistance R15 one end, transport and placing device AR2 output terminating resistor R15 the other end and
The cathode of the anode of diode D7, diode D6.
2. three-dimensional basin baselap acoustic image processing control system as described in claim 1, which is characterized in that the signal output apparatus
Including triode Q6, one end of the base stage connecting resistance R16 of triode Q6, resistance R17, the collector connecting resistance R18 of triode Q6
One end, another termination power+5V of resistance R16, resistance R18, the emitter of triode Q6 connect triode Q7 emitter and
One end of resistance R19, the other end of the base stage connecting resistance R17 of triode Q7, the collector of triode Q7 connect variable resistance R20's
One end, the other end ground connection of variable resistance R20, another termination signal output port of resistance R19.
3. three-dimensional basin baselap acoustic image processing control system as described in claim 1, which is characterized in that the frequency collection circuit
The power supply termination capacitor C1 of frequency collection device J1 including model SJ-ADC, frequency collection device J1, one end of resistance R1 and electricity
The ground terminal of source+5V, frequency collection device J1 is grounded, the output terminating resistor R1 of frequency collection device J1, the other end of capacitor C1 and
One end of resistance R2, one end of another terminating resistor R3 of resistance R2, capacitor C2, another terminating resistor R4, the capacitor of resistance R3
One end of C4, one end of another terminating resistor R5 of capacitor C2, capacitor C3, the other end ground connection of resistance R5, capacitor C4, resistance
The base stage of another termination triode Q2 of R4, capacitor C3.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110418063A (en) * | 2019-08-30 | 2019-11-05 | 深圳市众安威视技术有限公司 | A kind of camera signals calibration system |
| CN110460796A (en) * | 2019-08-30 | 2019-11-15 | 郑州工程技术学院 | A kind of industrial equipment operation monitoring signal adjusting circuit |
| CN110533966A (en) * | 2019-10-14 | 2019-12-03 | 郑州铁路职业技术学院 | A kind of Foreigh-language oral-speech correction system |
| CN110946572A (en) * | 2019-12-18 | 2020-04-03 | 郑州轻工业大学 | Wireless Electrocardiogram (ECG) acquisition monitoring device |
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