CN109581133B - Performance testing device based on antiferroelectric material - Google Patents
Performance testing device based on antiferroelectric material Download PDFInfo
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- CN109581133B CN109581133B CN201910065530.7A CN201910065530A CN109581133B CN 109581133 B CN109581133 B CN 109581133B CN 201910065530 A CN201910065530 A CN 201910065530A CN 109581133 B CN109581133 B CN 109581133B
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Abstract
The invention discloses a performance testing device based on antiferroelectric materials, which comprises a signal frequency acquisition circuit, a detection calibration circuit and a filtering compensation circuit, wherein the signal frequency acquisition circuit selects a signal frequency acquisition device J1 with the model of SJ-ADC to acquire the frequency of a data signal received by a control terminal in the performance testing device based on the antiferroelectric materials, the detection calibration circuit receives the output signal of the signal frequency acquisition circuit in two paths, one path uses a capacitor C2 to filter noise of a low-frequency signal, the other path uses a triode Q2 and a capacitor C3 to filter noise in a high-frequency signal, the last path of signal and two paths of signals are input into an AR3 in-phase input end together, the filtering compensation circuit uses an inductor L2, a resistor R17, a capacitor C7 and a capacitor C8 to form noise in the output signal of the filtering circuit and then outputs the noise in the output signal, and can test the frequency of the data signal received by the control terminal in the performance testing, the frequency modulation and voltage stabilization are carried out on the signals, and the signal distortion is prevented.
Description
Technical Field
The invention relates to the technical field of circuits, in particular to a performance testing device based on an antiferroelectric material.
Background
The antiferroelectric has unique electric field induced phase transition due to a special polarization mode, and the antiferroelectric material is expected to be applied to the fields of high-energy storage, micro-displacement control, adjustable pyroelectric infrared detection and the like because of the obvious change of polarization intensity, volume and current in the antiferroelectric-ferroelectric phase transition process, so that the performance test of the antiferroelectric material is strict, the change of the polarization intensity, the volume and the current in the antiferroelectric-ferroelectric phase transition process is various, and a magnetic field can appear along with the generation of the current to influence the collected information, so that the phenomena of frequency hopping and attenuation can be caused when the collected data signal is input to a control terminal in the antiferroelectric material-based performance test device, and the use effect of the antiferroelectric material-based performance test device is seriously influenced.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the present invention aims to provide a performance testing device based on an antiferroelectric material, which has the characteristics of ingenious design and humanized design, and can modulate and stabilize the frequency of a data signal received by a control terminal in the performance testing device based on the antiferroelectric material in real time, so as to prevent signal distortion.
The technical scheme includes that the performance testing device based on the antiferroelectric material comprises a signal frequency acquisition circuit, a detection calibration circuit and a filtering compensation circuit, wherein the signal frequency acquisition circuit selects a signal frequency collector J1 with the model of SJ-ADC to acquire the frequency of a data signal received by a control terminal in the performance testing device based on the antiferroelectric material, a clamping circuit composed of a diode D2 and a diode D3 is used for clamping the signal within 0- +5V, the detection calibration circuit receives signals output by the signal frequency acquisition circuit in two ways, one way uses a capacitor C2 to filter noise of a low-frequency signal, simultaneously uses an operational amplifier AR1 and an operational amplifier AR2 to form a detection circuit to screen out a peak signal, two ways use a triode voltage stabilizing circuit composed of a triode Q1 and a voltage stabilizing tube D7 to stabilize the voltage, and simultaneously uses a triode Q2 and a capacitor C3 to filter noise in a high-frequency signal, the last path of signal and two paths of signals are input into the non-inverting input end of the operational amplifier AR3 together, wherein a triode Q3, a voltage regulator tube D8, a voltage regulator tube D9 and a triac VTL1 form a composite circuit to filter abnormal signals in the signals, the triode Q4 and a triode Q5 are used for feeding back and calibrating the amplitude of the output signal of the operational amplifier AR3, and the filtering compensation circuit uses an inductor L2, a resistor R17, a capacitor C7 and a capacitor C8 to form noise waves in the output signal of the filtering circuit and then outputs the noise waves, namely, the potential of a data signal received by a control terminal in the performance testing device based on the antiferroelectric material is compensated;
the detection calibration circuit comprises an operational amplifier AR1, wherein the non-inverting input of the operational amplifier AR1 is connected with one end of a capacitor C2, the other end of the capacitor C2 is connected with one end of a resistor R3, the inverting input end of the operational amplifier AR1 is connected with one end of a resistor R4 and the anode of a diode D4, the output end of the operational amplifier AR4 is connected with the anode of the diode D4, the cathode of the diode D4 is connected with the non-inverting input end of the operational amplifier AR4, the inverting input end of the operational amplifier AR4 is connected with the cathode of the diode D4 and the emitter of a transistor Q4, the output end of the operational amplifier AR4 is connected with the other end of the resistor R4 and one end of the resistor R4, the other end of the resistor R4 is connected with one end of the resistor R4 and the collector of the transistor Q4, the base of the transistor Q4 and the cathode of the transistor D4, the emitter of the transistor Q4, the anode of the transistor D4 is connected with the emitter of the transistor C4, and the emitter of the transistor, the other end of the capacitor C3 is grounded, the cathode of the diode D3 is connected with one end of the capacitor C3, one end of the capacitor C3 and the cathode of the voltage regulator tube D3, the other end of the capacitor C3 is grounded, the anode of the voltage regulator tube D3 is connected with the base of the triode Q3, the collector of the triode Q3 is connected with the resistor R3, the other end of the resistor R3 is connected with the non-inverting input end of the operational amplifier AR3 and the base of the operational amplifier AR3, the emitter of the triode Q3 is connected with the cathode of the voltage regulator tube D3 and the anode of the triac VTL 3, the control electrode of the triac VTL 3 is connected with the anode of the voltage regulator tube D3 and one end of the resistor R3, the cathode of the capacitor C3 is connected with one end of the resistor R3, the other end of the resistor R3 is grounded, the resistor R3 and the output end of the operational amplifier AR3 are connected with the ground, the other end of the operational amplifier AR3, the resistor R3 and the other end of the operational amplifier AR3 are connected with the ground, the inverting input end of the operational amplifier, One end of a resistor R15 and a base electrode of a triode Q5, a cathode of a diode D10 is connected with a collector electrode of a triode Q4, an emitter electrode of a triode Q5 is connected with the other end of a resistor R15, a collector electrode of a triode Q5 is connected with a non-inverting input end of a amplifier AR4, an inverting input end of an operational amplifier AR4 is connected with one ends of a resistor R13 and a resistor R14, the other end of the resistor R14 is grounded, an output end of the operational amplifier is connected with one end of the resistor R12 and the other end of the resistor R13, and the other end of the resistor R12 is connected with the other end.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1. one path filters noise of low-frequency signals by using a capacitor C2, the capacitor C2 is a bypass capacitor, a detection circuit composed of an operational amplifier AR1 and an operational amplifier AR2 is used for screening peak signals, other clutter signals in the signals can be filtered, the consistency of the signals is ensured, the other path uses a triode voltage stabilizing circuit composed of a triode Q1 and a voltage stabilizing tube D7 for voltage stabilization, the stability of the signals is further ensured, meanwhile, the triode Q2 and the capacitor C3 are used for filtering noise in high-frequency signals, the capacitor C3 is a decoupling capacitor, the capacitor C3 and the capacitor C2 realize frequency modulation of the signals and prevent frequency hopping of the signals;
2. the triode Q3, the voltage regulator tube D8, the voltage regulator tube D9 and the triac VTL1 form a composite circuit for filtering abnormal signals in signals, when the in-phase input end of the operational amplifier AR3 is an abnormal signal, the triode Q3 is conducted at the moment to trigger the triac VTL1 to be conducted and to be discharged to the ground through the resistor R11, in order to further ensure the intensity of the compensated signal potential, the triode Q4 and the triode Q5 are used for feeding back and calibrating the amplitude of the output signal of the operational amplifier AR3, when the output signal of the operational amplifier AR3 is a high-level signal, the triode Q4 is conducted, the feedback signal is fed into the anti-phase input end of the operational amplifier AR2, the output signal potential of the operational amplifier AR2 is reduced, namely the output signal potential of the operational amplifier AR3 is reduced, when the output signal of the operational amplifier AR3 is a low-level signal, the triode Q5 is conducted, the in-phase amplified signal is input end of the operational amplifier AR3 after, the effects of stabilizing the voltage and calibrating the signals are realized.
Drawings
Fig. 1 is a block diagram of an antiferroelectric-based performance testing device according to the present invention.
Fig. 2 is a schematic diagram of the performance testing device based on the antiferroelectric material.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1 to 2. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
In the first embodiment, the performance testing device based on the antiferroelectric material comprises a signal frequency acquisition circuit, a detection calibration circuit and a filtering compensation circuit, wherein the signal frequency acquisition circuit selects a signal frequency acquisition device J1 with the model of SJ-ADC to acquire the frequency of a data signal received by a control terminal in the performance testing device based on the antiferroelectric material, a clamping circuit consisting of a diode D2 and a diode D3 is used for clamping the signal within 0- +5V, the detection calibration circuit receives the signal output by the signal frequency acquisition circuit in two paths, a capacitor C2 is used for filtering the noise of a low-frequency signal in one path, a detection circuit consisting of an operational amplifier AR1 and an operational amplifier AR2 is used for filtering a peak signal, a triode voltage stabilizing circuit consisting of two paths of triodes Q1 and a voltage stabilizing tube D7 is used for stabilizing the voltage, and a triode Q2 and a capacitor C3 are used for filtering the noise in, the last path of signal and two paths of signals are input into the non-inverting input end of the operational amplifier AR3 together, wherein a triode Q3, a voltage regulator tube D8, a voltage regulator tube D9 and a triac VTL1 form a composite circuit to filter abnormal signals in the signals, the triode Q4 and a triode Q5 are used for feeding back and calibrating the amplitude of the output signal of the operational amplifier AR3, and the filtering compensation circuit uses an inductor L2, a resistor R17, a capacitor C7 and a capacitor C8 to form noise waves in the output signal of the filtering circuit and then outputs the noise waves, namely, the potential of a data signal received by a control terminal in the performance testing device based on the antiferroelectric material is compensated;
the detection calibration circuit receives signals output by the signal frequency acquisition circuit in two paths, one path of the detection calibration circuit filters noise of low-frequency signals by using a capacitor C2, a capacitor C2 is a bypass capacitor, a detection circuit consisting of an operational amplifier AR1 and an operational amplifier AR2 is used for screening peak signals, other clutter signals in the signals can be filtered, the consistency of the signals is ensured, the other paths of the signals are stabilized by using a triode voltage stabilizing circuit consisting of a triode Q1 and a voltage stabilizing tube D7, the stability of the signals is further ensured, noise in high-frequency signals is filtered by using a triode Q2 and a capacitor C3, a capacitor C3 is a decoupling capacitor at the moment, the frequency modulation of the signals is realized by using a capacitor C3 and a capacitor C2, the frequency hopping of the signals is prevented, the last path of signals and the two paths of signals are input into an in-phase input end of an operational amplifier AR3, the operational amplifier AR3 amplifies the signals in phase and plays a, The voltage regulator tube D9 and the triac VTL1 form a composite circuit for filtering abnormal signals in signals, when the non-inverting input end of the operational amplifier AR3 is an abnormal signal, the triode Q3 is conducted to trigger the conduction of the triac VTL1 and is discharged to the ground through the resistor R11, the voltage regulator tube D8 and the voltage regulator tube D9 stabilize the voltage, the resistor R10 and the capacitor C6 play a role in filtering, the capacitor C5 is a bypass capacitor for filtering noise in low-frequency signals, in order to further ensure the intensity of compensating signal potential, the triode Q4 and the triode Q5 are used for feeding back and calibrating the amplitude of signals output by the operational amplifier AR3, when the output signal of the operational amplifier AR3 is a high-level signal, the triode Q4 is conducted to feed back the signal to the inverting input end of the operational amplifier AR2, the potential of the operational amplifier 2, namely the potential of the signal output by the operational amplifier AR3 is reduced, when the output signal of the operational amplifier AR3 is a low-level signal, after the signals are amplified in phase by the operational amplifier AR4, the signals are input into the in-phase input end of the operational amplifier AR3, the output signal potential of the operational amplifier AR3 is improved, and the effects of stabilizing the voltage and calibrating the signals are achieved;
the detection calibration circuit has the specific structure that a non-inverting input terminal of an operational amplifier AR1 is connected with one end of a capacitor C2, the other end of the capacitor C2 is connected with one end of a resistor R3, an inverting input terminal of an operational amplifier AR1 is connected with one end of a resistor R4 and the anode of a diode D4, an output terminal of an operational amplifier AR1 is connected with the anode of a diode D5, the cathode of the diode D5 is connected with a non-inverting input terminal of an operational amplifier AR 5, the inverting input terminal of the operational amplifier AR 5 is connected with the cathode of the diode D5 and the emitter of a triode Q5, an output terminal of the operational amplifier AR 5 is connected with the other end of the resistor R5 and one end of a resistor R5, the other end of the resistor R5 is connected with one end of the resistor R5 and the collector of a triode Q5, the base of the resistor R5 and the cathode of the diode D5, the base of the triode Q5, the anode of the voltage regulator D5 is connected with the emitter of the triode C5, the emitter of the, the other end of the capacitor C3 is grounded, the cathode of the diode D3 is connected with one end of the capacitor C3, one end of the capacitor C3 and the cathode of the voltage regulator tube D3, the other end of the capacitor C3 is grounded, the anode of the voltage regulator tube D3 is connected with the base of the triode Q3, the collector of the triode Q3 is connected with the resistor R3, the other end of the resistor R3 is connected with the non-inverting input end of the operational amplifier AR3 and the base of the operational amplifier AR3, the emitter of the triode Q3 is connected with the cathode of the voltage regulator tube D3 and the anode of the triac VTL 3, the control electrode of the triac VTL 3 is connected with the anode of the voltage regulator tube D3 and one end of the resistor R3, the cathode of the capacitor C3 is connected with one end of the resistor R3, the other end of the resistor R3 is grounded, the resistor R3 and the output end of the operational amplifier AR3 are connected with the ground, the other end of the operational amplifier AR3, the resistor R3 and the other end of the operational amplifier AR3 are connected with the ground, the inverting input end of the operational amplifier, One end of a resistor R15 and a base electrode of a triode Q5, a cathode of a diode D10 is connected with a collector electrode of a triode Q4, an emitter electrode of a triode Q5 is connected with the other end of a resistor R15, a collector electrode of a triode Q5 is connected with a non-inverting input end of a amplifier AR4, an inverting input end of an operational amplifier AR4 is connected with one ends of a resistor R13 and a resistor R14, the other end of the resistor R14 is grounded, an output end of the operational amplifier is connected with one end of the resistor R12 and the other end of the resistor R13, and the other end of the resistor R12 is connected with the other end.
In the second embodiment, based on the first embodiment, the filter compensation circuit outputs noise waves in an output signal of the filter circuit by using an inductor L2, a resistor R17, a capacitor C7, and a capacitor C8, so as to filter noise waves in the signal, that is, to compensate a data signal potential received by a control terminal in the performance test apparatus based on the antiferroelectric material, so as to prevent signal attenuation, one end of the inductor L2 is connected to one end of the resistor R16, the resistor R17, and the capacitor C7, the other end of the resistor R16 is connected to an emitter of the triode Q5, the other end of the inductor L2 is connected to one end of the inductor L3 and one end of the capacitor C8, the other ends of the resistor R17, the capacitor C7, and the capacitor C8 are grounded, the other end of the inductor L3 is connected to one end of the resistor R18, and the other.
Third, on the basis of the first embodiment, the signal frequency acquisition circuit selects a signal frequency collector J1 with the model number of SJ-ADC to acquire the frequency of the data signal received by the control terminal in the performance testing device based on the antiferroelectric material, a clamping circuit composed of a diode D2 and a diode D3 is used to clamp the signal within 0- +5V to prevent the circuit from being damaged due to overlarge signal potential, a voltage regulator tube D1 stabilizes voltage, a power supply of the signal frequency collector J1 is connected with one end of a capacitor C1, a resistor R1, a power supply +5V and the cathode of a diode D2, the grounding end of a signal frequency collector J1 is grounded, the output of the signal frequency collector J1 is connected with the other end of a capacitor C1 and a resistor R1 and one end of a resistor R2, the cathode of another voltage regulator tube D1 of the resistor R2 is connected with the cathode of the diode D3, the anode of a diode D2 and the collector of a triode Q1, and the anode of the voltage, the anode of diode D3 is connected to ground.
When the device is used in detail, the device for testing the performance based on the antiferroelectric material comprises a signal frequency acquisition circuit, a detection calibration circuit and a filtering compensation circuit, wherein the signal frequency acquisition circuit selects a signal frequency acquisition device J1 with the model of SJ-ADC to acquire the frequency of a data signal received by a control terminal in the device for testing the performance based on the antiferroelectric material, a clamping circuit consisting of a diode D2 and a diode D3 is used for clamping the signal within 0- +5V, the detection calibration circuit receives the signal output by the signal frequency acquisition circuit in two paths, one path uses a capacitor C2 to filter the noise of a low-frequency signal, the capacitor C2 is a bypass capacitor, a detection circuit consisting of an operational amplifier AR1 and an operational amplifier AR2 is used for screening a peak signal, other clutter signals in the signal can be filtered, the consistency of the signal is ensured, and two paths of triodes consisting of a triode Q1 and a voltage stabilizing circuit D7 are used, further ensuring the stability of the signal, simultaneously filtering the noise in the high frequency signal by using a triode Q2 and a capacitor C3, wherein the capacitor C3 is a decoupling capacitor, the capacitor C3 and the capacitor C2 realize the frequency modulation of the signal and prevent the frequency hopping of the signal, the last path of signal and two paths of signals are input into the non-inverting input end of an operational amplifier AR3 together, the operational amplifier AR3 amplifies the signal in phase and plays a role in compensating the conduction loss of the signal, wherein the triode Q3, a voltage regulator tube D8, a voltage regulator tube D9 and a triac VTL1 form a composite circuit to filter the abnormal signal in the signal, when the non-inverting input end of the operational amplifier AR3 is the abnormal signal, the triode Q3 is conducted to trigger the triac VTL1 to be conducted and then discharged to the ground through a resistor R11, the voltage regulator tube D8, the voltage regulator tube D9 to stabilize, the resistor R10 and the capacitor C6 play a role in filtering, the capacitor C5 is a bypass capacitor to filter, the amplitude of the output signal of the operational amplifier AR3 is calibrated by using a triode Q4 and a triode Q5 in a feedback mode, when the output signal of the operational amplifier AR3 is a high-level signal, the triode Q4 is conducted, a feedback signal is fed into the inverting input end of the operational amplifier AR2, the output signal potential of the operational amplifier AR2 is reduced, namely the output signal potential of the operational amplifier AR3 is reduced, when the output signal of the operational amplifier AR3 is a low-level signal, the triode Q5 is conducted, the signal is amplified in phase by the operational amplifier AR4 and then input into the non-inverting input end of the operational amplifier AR3, the output signal potential of the operational amplifier AR3 is increased, the effects of stabilizing and calibrating the signal are achieved, the filter compensation circuit uses an inductor L2, a resistor R17, a capacitor C7 and a capacitor C8 to form a filter circuit output signal after noise waves in the output signal, namely the noise waves received by a control terminal in the performance.
While the invention has been described in further detail with reference to specific embodiments thereof, it is not intended that the invention be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (1)
1. The performance testing device based on the antiferroelectric material comprises a signal frequency acquisition circuit, a detection calibration circuit and a filtering compensation circuit, and is characterized in that the signal frequency acquisition circuit selects a signal frequency acquisition device J1 with the model of SJ-ADC to acquire the frequency of a data signal received by a control terminal in the performance testing device based on the antiferroelectric material, a clamping circuit consisting of a diode D2 and a diode D3 is used for clamping the signal within 0- +5V, the detection calibration circuit receives the signal output by the signal frequency acquisition circuit in two paths, a capacitor C2 is used for filtering the noise of a low-frequency signal in one path, a detection circuit consisting of an operational amplifier AR1 and an operational amplifier AR2 is used for screening a peak signal, a triode voltage stabilizing circuit consisting of two paths of triodes Q1 and a voltage stabilizing tube D7 is used for stabilizing the voltage, and a triode Q2 and a capacitor C3 are used for filtering the noise in a, the last path of signal and two paths of signals are input into the non-inverting input end of the operational amplifier AR3 together, wherein a triode Q3, a voltage regulator tube D8, a voltage regulator tube D9 and a triac VTL1 form a composite circuit to filter abnormal signals in the signals, the triode Q4 and a triode Q5 are used for feeding back and calibrating the amplitude of the output signal of the operational amplifier AR3, and the filtering compensation circuit uses an inductor L2, a resistor R17, a capacitor C7 and a capacitor C8 to form noise waves in the output signal of the filtering circuit and then outputs the noise waves, namely, the potential of a data signal received by a control terminal in the performance testing device based on the antiferroelectric material is compensated;
the detection calibration circuit comprises an operational amplifier AR1, wherein the non-inverting input end of the operational amplifier AR1 is connected with one end of a capacitor C2, the other end of the capacitor C2 is connected with one end of a resistor R3, the inverting input end of the operational amplifier AR1 is connected with one end of a resistor R4 and the anode of a diode D4, the output end of the operational amplifier AR4 is connected with the anode of the diode D4, the cathode of the diode D4 is connected with the non-inverting input end of the operational amplifier AR4, the inverting input end of the operational amplifier AR4 is connected with the cathode of the diode D4 and the emitter of a transistor Q4, the output end of the operational amplifier AR4 is connected with the other end of the resistor R4 and one end of the resistor R4, the other end of the resistor R4 is connected with one end of the resistor R4 and the collector of the transistor Q4, the base of the transistor Q4 and the anode of the transistor D4, the emitter of the transistor Q4, the transistor Q4 is connected with the anode of the voltage regulator D4, and the emitter of the transistor C4, and the, the other end of the capacitor C3 is grounded, the cathode of the diode D3 is connected with one end of the capacitor C3, one end of the capacitor C3 and the cathode of the voltage regulator tube D3, the other end of the capacitor C3 is grounded, the anode of the voltage regulator tube D3 is connected with the base of the triode Q3, the collector of the triode Q3 is connected with the resistor R3, the other end of the resistor R3 is connected with the non-inverting input end of the operational amplifier AR3 and the base of the operational amplifier AR3, the emitter of the triode Q3 is connected with the cathode of the voltage regulator tube D3 and the anode of the triac VTL 3, the control electrode of the triac VTL 3 is connected with the anode of the voltage regulator tube D3 and one end of the resistor R3, the cathode of the capacitor C3 is connected with one end of the resistor R3, the other end of the resistor R3 is grounded, the resistor R3 and the output end of the operational amplifier AR3 are connected with the ground, the other end of the operational amplifier AR3, the resistor R3 and the other end of the operational amplifier AR3 are connected with the ground, the inverting input end of the operational amplifier, One end of a resistor R15 and a base electrode of a triode Q5, a negative electrode of a diode D10 is connected with a collector electrode of a triode Q4, an emitter electrode of a triode Q5 is connected with the other end of a resistor R15, a collector electrode of a triode Q5 is connected with a non-inverting input end of a amplifier AR4, an inverting input end of an operational amplifier AR4 is connected with one ends of a resistor R13 and a resistor R14, the other end of the resistor R14 is grounded, an output end of the operational amplifier AR4 is connected with one end of a resistor R12 and the other end of a resistor R13, and the other end of a resistor R12 is connected with;
the filter compensation circuit comprises an inductor L2, one end of the inductor L2 is connected with one end of a resistor R16, a resistor R17 and a capacitor C7, the other end of the resistor R16 is connected with an emitter of a triode Q5, the other end of the inductor L2 is connected with one end of the inductor L3 and one end of a capacitor C8, the other ends of the resistor R17, the capacitor C7 and the capacitor C8 are grounded, the other end of the inductor L3 is connected with one end of a resistor R18, and the other end of the resistor R18 is connected with a signal output port;
the signal frequency acquisition circuit comprises a signal frequency collector J1 of an SJ-ADC model, a power supply of the signal frequency collector J1 is connected with a capacitor C1, one end of a resistor R1, a power supply +5V and the cathode of a diode D2, the grounding end of the signal frequency collector J1 is grounded, the output end of the signal frequency collector J1 is connected with the capacitor C1, the other end of the resistor R1 and one end of a resistor R2, the other end of the resistor R2 is connected with the cathode of a voltage regulator tube D1, the cathode of the diode D3, the anode of a diode D2 and the collector of a triode Q1, the anode of the voltage regulator tube D1 is grounded, and the anode of the diode D3 is grounded.
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