CN109581133A - Performance testing device based on antiferroelectric materials - Google Patents
Performance testing device based on antiferroelectric materials Download PDFInfo
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- CN109581133A CN109581133A CN201910065530.7A CN201910065530A CN109581133A CN 109581133 A CN109581133 A CN 109581133A CN 201910065530 A CN201910065530 A CN 201910065530A CN 109581133 A CN109581133 A CN 109581133A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The invention discloses the performance testing devices based on antiferroelectric materials, including signal frequency Acquisition Circuit, circuit and filtering compensation circuit are calibrated in detection, the signal frequency Acquisition Circuit selects the received frequency data signal of controlling terminal in performance testing device of the signal frequency collector J1 acquisition based on antiferroelectric materials of model SJ-ADC, the detection calibration circuit divides two-way to receive signal frequency Acquisition Circuit output signal, the noise of low frequency signal is filtered out with capacitor C2 all the way, two road transports filter out the noise in high-frequency signal with triode Q2 and capacitor C3, it is last that signal and two road signals are inputted together in transport and placing device AR3 non-inverting input terminal all the way, the filtering compensation circuit uses inductance L2 and resistance R17, capacitor C7, it is exported after clutter in capacitor C8 composition filter circuit output signal, it can be real When distorted signals prevented to signal frequency modulation and pressure stabilizing based on the received frequency data signal of controlling terminal in the performance testing device of antiferroelectric materials.
Description
Technical field
The present invention relates to field of circuit technology, more particularly to the performance testing device based on antiferroelectric materials.
Background technique
Antiferroelectric has unique electric field-induced phase transition due to its special polarization mode, and antiferroelectric materials exists
Invariably accompany during phase transition induced with electric field the variation of significant polarization intensity, volume and electric current, thus is expected in high energy
It is applied in the fields such as storage, micro-displacement control and the detection of adjustable rpyroelectric infrared, therefore the performance of antiferroelectric materials is surveyed
Examination is more stringent, and the variation of polarization intensity, volume and electric current during phase transition induced with electric field is various, and with electricity
The generation of stream will appear magnetic field, influence the information of acquisition, and the data-signal that will lead to acquisition is input to based on antiferroelectric materials
In performance testing device when controlling terminal, there is a phenomenon where frequency hopping and decaying, seriously affects the performance based on antiferroelectric materials and survey
The using effect that trial assembly is set.
Summary of the invention
For above situation, for the defect for overcoming the prior art, purpose of the present invention is to provide be based on antiferroelectric materials
Performance testing device, have be skillfully constructed, the characteristic of human oriented design, can be in real time based on the performance test of antiferroelectric materials
The received frequency data signal of controlling terminal prevents distorted signals to signal frequency modulation and pressure stabilizing in device.
Its technical solution solved is the performance testing device based on antiferroelectric materials, including signal frequency Acquisition Circuit,
Circuit and filtering compensation circuit are calibrated in detection, and the signal frequency Acquisition Circuit selects the signal frequency acquisition of model SJ-ADC
Device J1 acquires the received frequency data signal of controlling terminal in the performance testing device based on antiferroelectric materials, with diode
For the clamp circuit of D2, diode D3 composition by signal clamper in 0-+5V, the detection calibration circuit divides two-way to receive signal frequency
Rate Acquisition Circuit output signal filters out the noise of low frequency signal with capacitor C2 all the way, while using transport and placing device AR1 and transport and placing device
AR2 composition detecting circuit filters out peak signal, the triode voltage regulator circuit that two road transports are formed with triode Q1 and voltage-stabiliser tube D7
Pressure stabilizing, while filtering out the noise in high-frequency signal with triode Q2 and capacitor C3, finally signal and two road signals are together all the way
It inputs in transport and placing device AR3 non-inverting input terminal, wherein triode Q3 and voltage-stabiliser tube D8, voltage-stabiliser tube D9 and triode-thyristor VTL1 group
The abnormal signal in signal is filtered out at compound circuit, and is exported with triode Q4, triode Q5 feedback calibration transport and placing device AR3
Signal amplitude, the filtering compensation circuit is with inductance L2 and resistance R17, capacitor C7, capacitor C8 composition filter circuit output letter
It is exported after clutter in number, that is to say the received data letter of controlling terminal in performance testing device of the compensation based on antiferroelectric materials
Number current potential；
The detection calibration circuit includes transport and placing device AR1, one end of the homophase input termination capacitor C2 of transport and placing device AR1, capacitor C2
Another terminating resistor R3 one end, transport and placing device AR1 anti-phase input termination connecting resistance R4 one end and diode D4 anode,
The anode of the output terminating diode D5 of transport and placing device AR1, the cathode of diode D5 connect the non-inverting input terminal of transport and placing device AR2, amplifier
The cathode of the anti-phase input termination diode D4 of device AR2 and the emitter of triode Q4, the output terminating resistor R4 of transport and placing device AR2
The other end and resistance R7 one end, one end of another terminating resistor R5 of resistance R3 and the collector of triode Q1, triode
The base stage of the cathode of the other end of the base stage connecting resistance R5 of Q1 and voltage-stabiliser tube D7, triode Q2, the plus earth of voltage-stabiliser tube D7,
The emitter of the collector connecting transistor Q1 of triode Q2 and the anode of diode D6, the emitter of triode Q2 connect capacitor C3's
One end, the other end ground connection of capacitor C3, the cathode of diode D6 connect one end of capacitor C4 and one end of resistance R6, capacitor C5 one
The cathode of end and voltage-stabiliser tube D8, the other end ground connection of capacitor C5, the anode of voltage-stabiliser tube D8 connect the base stage of triode Q3, triode
The collector connecting resistance R6 of Q3, the non-inverting input terminal of the other end of resistance R7 and transport and placing device AR3, the base stage of triode Q4, three poles
The emitter of pipe Q3 connects the cathode of voltage-stabiliser tube D9 and the anode of triode-thyristor VTL1, and the control electrode of triode-thyristor VTL1 connects surely
One end of the anode and resistance R10, capacitor C6 of pressure pipe D9, one end of the cathode connecting resistance R11 of triode-thyristor VTL1, resistance
The other end of R11 is grounded, the other end ground connection of resistance R10, capacitor C6, anti-phase input terminating resistor R8, the resistance of transport and placing device AR3
One end of R9, the other end ground connection of resistance R8, the output terminating diode D10's of transport and placing device AR3 is positive and resistance R9 another
The base stage at end, one end of resistance R15 and triode Q5, the cathode of diode D10 meet the collector of triode Q4, triode Q5
Emitter connecting resistance R15 the other end, the collector of triode Q5 connects the non-inverting input terminal of transport and placing device AR4, transport and placing device AR4's
One end of anti-phase input terminating resistor R13, resistance R14, the other end ground connection of resistance R14, the safe output of transport and placing device terminate electricity
Hinder one end of R12 and the other end of resistance R13, the other end of another termination capacitor C4 of resistance R12.
Due to the use of above technical scheme, the present invention has the following advantages that compared with prior art；
1. a road filters out the noise of low frequency signal with capacitor C2, capacitor C2 is shunt capacitance, at the same with transport and placing device AR1 and
Transport and placing device AR2 composition detecting circuit filters out peak signal, can filter out other noise signals in signal, guarantee the one of signal
Cause property, the triode voltage regulator circuit pressure stabilizing that two road transports are formed with triode Q1 and voltage-stabiliser tube D7, is further ensured that the stabilization of signal
Property, while filtering out the noise in high-frequency signal with triode Q2 and capacitor C3, capacitor C3 is decoupling capacitor at this time, capacitor C3 and
Capacitor C2 realizes the frequency modulation to signal, anti-stop signal frequency hopping；
2. triode Q3 and voltage-stabiliser tube D8, voltage-stabiliser tube D9 and triode-thyristor VTL1 composition compound circuit filter out different in signal
Regular signal, when transport and placing device AR3 non-inverting input terminal is abnormal signal, triode Q3 is connected at this time, triggers triode-thyristor VTL1
Conducting is released to greatly through resistance R11, in order to further ensure thermal compensation signal current potential intensity, with triode Q4, triode Q5
Feedback calibration transport and placing device AR3 output amplitude, when transport and placing device AR3 output signal is high level signal, triode Q4 conducting,
In feedback signal to transport and placing device AR2 inverting input terminal, transport and placing device AR2 output signal current potential is reduced, that is to say reduces transport and placing device AR3
Output signal current potential, when transport and placing device AR3 output signal is low level signal, triode Q5 conducting is mutually put through transport and placing device AR4 is same
It is inputted in transport and placing device AR3 non-inverting input terminal after big signal, improves transport and placing device AR3 output signal current potential, realize to the steady of signal
Pressure, the effect of calibration.
Detailed description of the invention
Fig. 1 is that the present invention is based on the module maps of the performance testing device of antiferroelectric materials.
Fig. 2 is that the present invention is based on the schematic diagrams of the performance testing device of antiferroelectric materials.
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 2
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, the performance testing device based on antiferroelectric materials, including signal frequency Acquisition Circuit, detection calibration electricity
Road and filtering compensation circuit, the signal frequency Acquisition Circuit select the signal frequency collector J1 of model SJ-ADC to acquire base
The received frequency data signal of controlling terminal in the performance testing device of antiferroelectric materials, with diode D2, diode D3
For the clamp circuit of composition by signal clamper in 0-+5V, the detection calibration circuit divides two-way to receive signal frequency Acquisition Circuit
Output signal filters out the noise of low frequency signal with capacitor C2 all the way, while with transport and placing device AR1 and transport and placing device AR2 composition inspection
Wave circuit filters out peak signal, the triode voltage regulator circuit pressure stabilizing that two road transports are formed with triode Q1 and voltage-stabiliser tube D7, simultaneously
The noise in high-frequency signal is filtered out with triode Q2 and capacitor C3, finally signal and two road signals input transport and placing device together all the way
In AR3 non-inverting input terminal, wherein triode Q3 and voltage-stabiliser tube D8, voltage-stabiliser tube D9 and triode-thyristor VTL1 form compound circuit
The abnormal signal in signal is filtered out, and uses triode Q4, triode Q5 feedback calibration transport and placing device AR3 output amplitude,
The filtering compensation circuit is with the clutter in inductance L2 and resistance R17, capacitor C7, capacitor C8 composition filter circuit output signal
After export, that is to say compensation the performance testing device based on antiferroelectric materials in the received data-signal current potential of controlling terminal；
The detection calibration circuit divides two-way to receive signal frequency Acquisition Circuit output signal, filters out low frequency with capacitor C2 all the way
The noise of signal, capacitor C2 are shunt capacitance, while screening appearance with transport and placing device AR1 and transport and placing device AR2 composition detecting circuit
Value signal can filter out other noise signals in signal, guarantee the consistency of signal, two road transports triode Q1 and voltage-stabiliser tube
The triode voltage regulator circuit pressure stabilizing of D7 composition is further ensured that the stability of signal, while filtering with triode Q2 and capacitor C3
Except the noise in high-frequency signal, capacitor C3 is decoupling capacitor at this time, and capacitor C3 and capacitor C2 realize the frequency modulation to signal, prevent
Signal frequency hopping, finally signal and two road signals are inputted together in transport and placing device AR3 non-inverting input terminal all the way, and transport and placing device AR3 is same mutually to be put
Big signal plays the effect of thermal compensation signal conduction loss, and wherein triode Q3 and voltage-stabiliser tube D8, voltage-stabiliser tube D9 and three ends are controllable
Silicon VTL1 composition compound circuit filters out the abnormal signal in signal, when transport and placing device AR3 non-inverting input terminal is abnormal signal, at this time
Triode Q3 conducting, triggering triode-thyristor VTL1 conducting, releases through resistance R11 to greatly, voltage-stabiliser tube D8, voltage-stabiliser tube D9 are steady
Pressure, resistance R10 and capacitor C6 play the effect of filtering, and capacitor C5 is shunt capacitance, filter out the noise in low frequency signal, in order into
One step guarantees thermal compensation signal current potential intensity, with triode Q4, triode Q5 feedback calibration transport and placing device AR3 output amplitude,
When transport and placing device AR3 output signal is high level signal, triode Q4 conducting, feedback signal to transport and placing device AR2 inverting input terminal
It is interior, transport and placing device AR2 output signal current potential is reduced, that is to say reduces transport and placing device AR3 output signal current potential, when transport and placing device AR3 is exported
When signal is low level signal, triode Q5 conducting inputs transport and placing device AR3 with mutually defeated after transport and placing device AR4 is with phase amplified signal
Enter in end, improve transport and placing device AR3 output signal current potential, realizes the effect of pressure stabilizing to signal, calibration；
Circuit specific structure is calibrated in the detection, and one end of the homophase input termination capacitor C2 of transport and placing device AR1, capacitor C2's is another
One end of terminating resistor R3, one end of the anti-phase input termination connecting resistance R4 of transport and placing device AR1 and the anode of diode D4, transport and placing device
The anode of the output terminating diode D5 of AR1, the cathode of diode D5 connect the non-inverting input terminal of transport and placing device AR2, transport and placing device AR2's
Anti-phase input terminates the cathode of diode D4 and the emitter of triode Q4, and the output terminating resistor R4's of transport and placing device AR2 is another
The one end at end and resistance R7, one end of another terminating resistor R5 of resistance R3 and the collector of triode Q1, the base of triode Q1
The base stage of the cathode of the other end of pole connecting resistance R5 and voltage-stabiliser tube D7, triode Q2, the plus earth of voltage-stabiliser tube D7, triode
The emitter of the collector connecting transistor Q1 of Q2 and the anode of diode D6, the emitter of triode Q2 connect one end of capacitor C3,
The other end of capacitor C3 is grounded, the cathode of diode D6 connect one end of capacitor C4 and one end of resistance R6, capacitor C5 one end with
And the cathode of voltage-stabiliser tube D8, the other end ground connection of capacitor C5, the anode of voltage-stabiliser tube D8 connect the base stage of triode Q3, triode Q3's
Collector connecting resistance R6, the non-inverting input terminal of the other end of resistance R7 and transport and placing device AR3, the base stage of triode Q4, triode Q3
Emitter connect the cathode of voltage-stabiliser tube D9 and the anode of triode-thyristor VTL1, the control electrode of triode-thyristor VTL1 connects voltage-stabiliser tube
One end of the anode and resistance R10, capacitor C6 of D9, one end of the cathode connecting resistance R11 of triode-thyristor VTL1, resistance R11's
Other end ground connection, the other end ground connection of resistance R10, capacitor C6, the anti-phase input terminating resistor R8 of transport and placing device AR3, resistance R9
One end, the other end ground connection of resistance R8, the anode of the output terminating diode D10 of transport and placing device AR3 and the other end, the electricity of resistance R9
It hinders one end of R15 and the base stage of triode Q5, the cathode of diode D10 connects the collector of triode Q4, the hair of triode Q5
The other end of emitter-base bandgap grading connecting resistance R15, the collector of triode Q5 connect the non-inverting input terminal of transport and placing device AR4, the reverse phase of transport and placing device AR4
Input one end of terminating resistor R13, resistance R14, the other end ground connection of resistance R14, the safe output terminating resistor of transport and placing device
One end of R12 and the other end of resistance R13, the other end of another termination capacitor C4 of resistance R12.
Embodiment two, on the basis of example 1, the filtering compensation circuit use inductance L2 and resistance R17, capacitor
It is exported after clutter in C7, capacitor C8 composition filter circuit output signal, filters out the clutter in signal, that is to say compensation based on anti-
The received data-signal current potential of controlling terminal in the performance testing device of ferroelectric material, anti-stop signal decaying, one end of inductance L2
One end of connecting resistance R16, resistance R17, capacitor C7, the emitter of another termination triode Q5 of resistance R16, inductance L2's is another
One end of inductance L3 and one end of capacitor C8 are terminated, the other end ground connection of resistance R17, capacitor C7, capacitor C8, inductance L3's is another
One end of terminating resistor R18, another termination signal output port of resistance R18.
Implement three, on the basis of example 1, the signal frequency Acquisition Circuit selects the signal of model SJ-ADC
Frequency collection device J1 acquires the received frequency data signal of controlling terminal in the performance testing device based on antiferroelectric materials, uses
Signal clamper in 0-+5V, is prevented signal potential from crossing havoc circuit by the clamp circuit of diode D2, diode D3 composition,
Voltage-stabiliser tube D1 pressure stabilizing simultaneously, the power supply termination capacitor C1 of signal frequency collector J1, one end of resistance R1 and power supply+5V and two
The cathode of pole pipe D2, the ground terminal ground connection of signal frequency collector J1, output termination capacitor C1, the electricity of signal frequency collector J1
Hinder the other end of R1 and one end of resistance R2, the cathode of the cathode of another termination voltage-stabiliser tube D1 of resistance R2 and diode D3, two
The anode of pole pipe D2 and the collector of triode Q1, the plus earth of voltage-stabiliser tube D1, the plus earth of diode D3.
When the present invention is specifically used, the performance testing device based on antiferroelectric materials, including signal frequency Acquisition Circuit, inspection
Wave calibrates circuit and filtering compensation circuit, and the signal frequency Acquisition Circuit selects the signal frequency collector of model SJ-ADC
J1 acquire the performance testing device based on antiferroelectric materials in the received frequency data signal of controlling terminal, with diode D2,
For the clamp circuit of diode D3 composition by signal clamper in 0-+5V, the detection calibration circuit divides two-way to receive signal frequency
Acquisition Circuit output signal filters out the noise of low frequency signal with capacitor C2 all the way, and capacitor C2 is shunt capacitance, while with fortune
It puts device AR1 and transport and placing device AR2 composition detecting circuit and filters out peak signal, other noise signals in signal can be filtered out, protected
The consistency of signal is demonstrate,proved, the triode voltage regulator circuit pressure stabilizing that two road transports are formed with triode Q1 and voltage-stabiliser tube D7 is further ensured that
The stability of signal, while the noise in high-frequency signal is filtered out with triode Q2 and capacitor C3, capacitor C3 is decoupling electricity at this time
Hold, capacitor C3 and capacitor C2 realize the frequency modulation to signal, and anti-stop signal frequency hopping, finally signal and two road signals are defeated together all the way
Entering in transport and placing device AR3 non-inverting input terminal, transport and placing device AR3 plays the effect of thermal compensation signal conduction loss with phase amplified signal, wherein
Triode Q3 and voltage-stabiliser tube D8, voltage-stabiliser tube D9 and triode-thyristor VTL1 composition compound circuit filter out the abnormal letter in signal
Number, when transport and placing device AR3 non-inverting input terminal is abnormal signal, triode Q3 is connected at this time, triggering triode-thyristor VTL1 conducting,
It releases through resistance R11 to greatly, voltage-stabiliser tube D8, voltage-stabiliser tube D9 pressure stabilizing, resistance R10 and capacitor C6 play the effect of filtering, capacitor
C5 is shunt capacitance, filters out the noise in low frequency signal, in order to further ensure thermal compensation signal current potential intensity, with triode
Q4, triode Q5 feedback calibration transport and placing device AR3 output amplitude, when transport and placing device AR3 output signal is high level signal, three
Pole pipe Q4 is connected, and in feedback signal to transport and placing device AR2 inverting input terminal, reduces transport and placing device AR2 output signal current potential, that is to say drop
Low transport and placing device AR3 output signal current potential, when transport and placing device AR3 output signal is low level signal, triode Q5 conducting, through amplifier
Device AR4 is inputted in transport and placing device AR3 non-inverting input terminal with after phase amplified signal, is improved transport and placing device AR3 output signal current potential, is realized
The filtering compensation circuit described in the effect of pressure stabilizing, the calibration of signal is with inductance L2 and resistance R17, capacitor C7, capacitor C8 composition
It is exported after clutter in filter circuit output signal, that is to say and controlled eventually in performance testing device of the compensation based on antiferroelectric materials
Hold received data-signal current potential.
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. the performance testing device based on antiferroelectric materials, including signal frequency Acquisition Circuit, detection calibration circuit and filtering are mended
Repay circuit, which is characterized in that the signal frequency Acquisition Circuit selects the signal frequency collector J1 acquisition of model SJ-ADC
The received frequency data signal of controlling terminal in performance testing device based on antiferroelectric materials, with diode D2, diode
For the clamp circuit of D3 composition by signal clamper in 0-+5V, the detection calibration circuit divides two-way to receive signal frequency acquisition electricity
Road output signal filters out the noise of low frequency signal with capacitor C2 all the way, while forming with transport and placing device AR1 and transport and placing device AR2
Detecting circuit filters out peak signal, the triode voltage regulator circuit pressure stabilizing that two road transports are formed with triode Q1 and voltage-stabiliser tube D7, together
Shi Yunyong triode Q2 and capacitor C3 filter out the noise in high-frequency signal, and finally signal and two road signals input amplifier together all the way
In device AR3 non-inverting input terminal, wherein triode Q3 and voltage-stabiliser tube D8, voltage-stabiliser tube D9 and triode-thyristor VTL1 form compound electric
Road filters out the abnormal signal in signal, and shakes with triode Q4, triode Q5 feedback calibration transport and placing device AR3 output signal
Width, the filtering compensation circuit is in inductance L2 and resistance R17, capacitor C7, capacitor C8 composition filter circuit output signal
It is exported after clutter, that is to say the received data-signal electricity of controlling terminal in performance testing device of the compensation based on antiferroelectric materials
Position；
The detection calibration circuit includes transport and placing device AR1, one end of the homophase input termination capacitor C2 of transport and placing device AR1, capacitor C2
Another terminating resistor R3 one end, transport and placing device AR1 anti-phase input termination connecting resistance R4 one end and diode D4 anode,
The anode of the output terminating diode D5 of transport and placing device AR1, the cathode of diode D5 connect the non-inverting input terminal of transport and placing device AR2, amplifier
The cathode of the anti-phase input termination diode D4 of device AR2 and the emitter of triode Q4, the output terminating resistor R4 of transport and placing device AR2
The other end and resistance R7 one end, one end of another terminating resistor R5 of resistance R3 and the collector of triode Q1, triode
The base stage of the cathode of the other end of the base stage connecting resistance R5 of Q1 and voltage-stabiliser tube D7, triode Q2, the plus earth of voltage-stabiliser tube D7,
The emitter of the collector connecting transistor Q1 of triode Q2 and the anode of diode D6, the emitter of triode Q2 connect capacitor C3's
One end, the other end ground connection of capacitor C3, the cathode of diode D6 connect one end of capacitor C4 and one end of resistance R6, capacitor C5 one
The cathode of end and voltage-stabiliser tube D8, the other end ground connection of capacitor C5, the anode of voltage-stabiliser tube D8 connect the base stage of triode Q3, triode
The collector connecting resistance R6 of Q3, the non-inverting input terminal of the other end of resistance R7 and transport and placing device AR3, the base stage of triode Q4, three poles
The emitter of pipe Q3 connects the cathode of voltage-stabiliser tube D9 and the anode of triode-thyristor VTL1, and the control electrode of triode-thyristor VTL1 connects surely
One end of the anode and resistance R10, capacitor C6 of pressure pipe D9, one end of the cathode connecting resistance R11 of triode-thyristor VTL1, resistance
The other end of R11 is grounded, the other end ground connection of resistance R10, capacitor C6, anti-phase input terminating resistor R8, the resistance of transport and placing device AR3
One end of R9, the other end ground connection of resistance R8, the output terminating diode D10's of transport and placing device AR3 is positive and resistance R9 another
The base stage at end, one end of resistance R15 and triode Q5, the cathode of diode D10 meet the collector of triode Q4, triode Q5
Emitter connecting resistance R15 the other end, the collector of triode Q5 connects the non-inverting input terminal of transport and placing device AR4, transport and placing device AR4's
One end of anti-phase input terminating resistor R13, resistance R14, the other end ground connection of resistance R14, the safe output of transport and placing device terminate electricity
Hinder one end of R12 and the other end of resistance R13, the other end of another termination capacitor C4 of resistance R12.
2. as described in claim 1 based on the performance testing device of antiferroelectric materials, which is characterized in that the filtering compensation circuit
Including inductance L2, one end of a terminating resistor R16 of inductance L2, resistance R17, capacitor C7, another termination triode of resistance R16
The emitter of Q5, one end of another termination inductance L3 of inductance L2 and one end of capacitor C8, resistance R17, capacitor C7, capacitor C8
Other end ground connection, one end of another terminating resistor R18 of inductance L3, another termination signal output port of resistance R18.
3. as described in claim 1 based on the performance testing device of antiferroelectric materials, which is characterized in that the signal frequency acquisition
Circuit includes the signal frequency collector J1 of model SJ-ADC, power supply termination capacitor C1, the resistance of signal frequency collector J1
The cathode of one end of R1 and power supply+5V and diode D2, the ground terminal ground connection of signal frequency collector J1, signal frequency acquisition
Output termination capacitor C1, the other end of resistance R1 and one end of resistance R2 of device J1, another termination voltage-stabiliser tube D1's of resistance R2
The collector of the cathode of cathode and diode D3, the anode of diode D2 and triode Q1, the plus earth of voltage-stabiliser tube D1, two poles
The plus earth of pipe D3.
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| CN111245427A (en) * | 2020-01-14 | 2020-06-05 | 河北岳如信息科技有限公司 | Big data real-time monitoring system |
| CN111294026A (en) * | 2020-04-07 | 2020-06-16 | 周聪 | Sewage treatment monitored control system based on thing networking |
| CN111654305A (en) * | 2020-06-08 | 2020-09-11 | 郑州工业应用技术学院 | Computer network communication transmission system |
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