CN207910744U - A kind of signal processing circuit based on quartz resonance - Google Patents
A kind of signal processing circuit based on quartz resonance Download PDFInfo
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- CN207910744U CN207910744U CN201820735937.7U CN201820735937U CN207910744U CN 207910744 U CN207910744 U CN 207910744U CN 201820735937 U CN201820735937 U CN 201820735937U CN 207910744 U CN207910744 U CN 207910744U
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Abstract
The utility model discloses a kind of signal processing circuit based on quartz resonance, including linear amplifier circuit, phase compensating circuit, inverter circuit；Linear amplifier circuit includes the first phase inverter, the 2nd 1 resistance R21, and the first phase inverter is in parallel with the 2nd 1 resistance R21；The first end of quartz resonance connects the first end of the input terminal of the first phase inverter, the 2nd 1 resistance R21；Phase compensating circuit includes the second phase inverter, the 3rd 1 resistance R31, the 4th 1 resistance R41, May Day resistance R51, the 3rd 1 capacitance C31；Inverter circuit includes third phase inverter, and the input terminal of third phase inverter is separately connected the second end of the output end of the second phase inverter, May Day resistance R51；The inverter circuit exports TTL standard blocks signal is become analog signal.The utility model proposes the signal processing circuit based on quartz resonance, facilitate frequency test, while the performance of lower quartz resonance of single supply power supply can be improved.
Description
Technical field
The utility model belongs to electronic circuit technology field, is related to a kind of quartz resonance, more particularly to a kind of based on stone
The signal processing circuit of English harmonic oscillator.
Background technology
The sub- accelerometer of quartz resonance is the mechanical accelerometer of the resonance effects based on quartz chip itself, is had sensitive
High, the low in energy consumption, light weight of degree, good reliability, shock resistance, anti-adverse environment, it is at low cost the advantages that, be very suitable for for precision,
Volume, weight, reliability, environmental load require high application scenarios, are an emerging important development directions of inertia type instrument.
At present in the application of the system of the sub- accelerometer of quartz resonance, circuit system is generally used unipolarity power supply, this
The signal processing circuit of quartz resonance also uses unipolarity power supply, this scheme use ± 15V power supplies, the sub- acceleration of quartz resonance
The TTL waveforms of output signal use+5V are counted, and the sub- output signal of quartz resonance is standard sine wave, this brings to system application
Very big inconvenience, it is therefore desirable to which sine wave is converted into TTL square waves by signal processing circuit.In addition, in order to ensure signal processing circuit
Stability, need power source internal to adjust, ensure processing circuit fluctuating error be in normal level.
The signal processing circuit of common quartz resonance is only oscillator amplifier circuit, using strings such as amplifier, resistance, capacitances
Connection with it is in parallel, using many devices, in addition to this gain bandwidth of amplifying circuit is limited, and gain is bigger, and phase offset is got over
Greatly so that phase condition is harder to meet.
In view of this, nowadays there is an urgent need to design a kind of new quartz resonance subsignal processing mode, it is existing to overcome
Drawbacks described above existing for processing mode.
Utility model content
Technical problem to be solved in the utility model is：A kind of signal processing circuit based on quartz resonance is provided,
It can be convenient for frequency test, while the performance of lower quartz resonance of single supply power supply can be improved.
In order to solve the above technical problems, the utility model adopts the following technical solution：
A kind of signal processing circuit based on quartz resonance, the signal processing circuit include：Linear amplifier circuit, phase
Bit compensation circuit, inverter circuit；
Quartz resonance is separately connected linear amplifier circuit, phase compensating circuit, linear amplifier circuit, phase compensation electricity
Road, inverter circuit are sequentially connected；
The linear amplifier circuit includes the first phase inverter, the 2nd 1 resistance R21, the first phase inverter and the 2nd 1 resistance
R21 is in parallel；The first end of quartz resonance connects the first end of the input terminal of the first phase inverter, the 2nd 1 resistance R21；The line
Property amplifying circuit to make quartz resonance generate sinusoidal signal carry out Linear Amplifer；
The phase compensating circuit includes the second phase inverter, the 3rd 1 resistance R31, the 4th 1 resistance R41, May Day resistance
R51, the 3rd 1 capacitance C31；
The first end of the 3rd 1 resistance R31 be separately connected the output end of the first phase inverter, the 2nd 1 resistance R21
Two ends；The second end of 3rd 1 resistance R31 is separately connected the input terminal of the second phase inverter, the first end of the 4th 1 resistance R41,
The first end of 31 capacitance C31, the second end of the 4th 1 resistance R41 are separately connected the second end of the 3rd 1 capacitance C31, May Day
The first end of resistance R51, the second end of quartz resonance；The second of output end connection May Day resistance R51 of second phase inverter
End；The phase compensating circuit carries out phase compensation to the sinusoidal signal for making quartz resonance generate so that phase compensation is anti-
It feeds the signal phase of quartz resonance and former output sine wave phase difference meets setting range；
The inverter circuit includes third phase inverter, and the input terminal of third phase inverter is separately connected the defeated of the second phase inverter
The second end of outlet, May Day resistance R51；The inverter circuit exports TTL standards signal is become analog signal
Square wave.
As a kind of preferred embodiment of the utility model, the signal processing circuit includes two signal processing sub-circuits,
The signal that each signal processing sub-circuit respectively generates corresponding quartz resonance is handled；Each signal processing sub-circuit difference
Including linear amplifier circuit, phase compensating circuit, inverter circuit.
As a kind of preferred embodiment of the utility model, the signal processing circuit further includes DC power supply circuit；
The DC power supply circuit includes DC power supply DC, the first diode D1, the second diode D2, third diode
D3, the first triode Q1, the second triode Q2, the first capacitance C1, the second capacitance C2, first resistor R1；
The cathode connection first of the anode, the first diode D1 of the first diode D1 of anode connection of the DC power supply DC
The first end of resistance R1, the second end of first resistor R1 be separately connected the first end of the first capacitance C1, the first triode Q1 collection
The anode of electrode, the collector of the second triode Q2, the second diode D2；The cathode of second diode D2 is separately connected the three or two
The base stage of the cathode of pole pipe D3, the first end of the second capacitance C2, the base stage of the first triode Q1, the second triode Q2；
The cathode of the DC power supply DC is separately connected the second end of the first capacitance C1, the anode of third diode D3,
The second end of two capacitance C2；
The emitter of the first triode Q1, the emitter of the second triode Q2 respectively as DC voltage output
End.
As a kind of preferred embodiment of the utility model, the chip of each phase inverter is TEXAS INSTRUMENTS's
CD4069UB type products.
A kind of signal processing circuit based on quartz resonance, including signal source pass through Linear Amplifer, Linear Amplifer output
End is connected through R31 resistance to phase inverter, and phase inverter is in parallel with two resistance progress, and wherein resistance R41 is in parallel with capacitance C31,
So that signal is 0 ° after phase compensation when R41 output ends are to the signal source other end, circuit will not be to signal source itself at this time
The signal of generation carries out phase delay, ensures that circuit can vibrate automatically when the signal source 1 of circuit is closed.Signal is mended by phase
Analog signal TTL is converted digital signals by phase inverter after repaying, last signal is exported by stitch.Wherein signal processing electricity
Linear Amplifer, phase compensation and phase inverter are aided with circuit capacitance and complete circuit signal processing all based on phase inverter in road, in order to
The stability for ensureing circuit signal, using built in D.C. regulated power supply, ensureing that the operating voltage of phase inverter chip is constant, while electricity
Source circuit avoids voltage from fluctuating in very large range.
Since signal source (quartz resonance) is there are RC network, its phase is caused to change, thus phase compensation 13 by
Phase inverter and R41, R51 is in parallel, and wherein R41 is in parallel again with C31, last series resistance R31, this partial function is mended for phase angle
It repays, places in signal acquisition process, phase generates drift and causes cyclical swing.
A kind of signal processing circuit based on quartz resonance, phase compensating circuit 13 are connect with Linear Amplifer 12, the line
Property amplifying circuit 12 is constituted by phase inverter is in parallel with resistance R21.The input signal of phase compensating circuit 13 is by phase inverter and instead
Phase device analogue signal circuit input terminal is connected.The signal input of phase compensating circuit 13 is input to phase inverter after resistance R31,
Phase inverter is in parallel with resistance R41, R51, and wherein resistance R41 is in parallel with capacitance C31.Signal passes through capacitance C31, resistance R41 inputs
To signal source 11.In addition phase compensating circuit output by arriving inverter circuit 14 all the way, by processing output TTL square waves letter
Number.
The beneficial effects of the utility model are：The utility model proposes based on quartz resonance signal processing electricity
Road, for the oscillator sine wave and direct impedance of quartz resonance output after signal processing circuit, signal output is standard TTL waves
Shape facilitates frequency test；In addition circuit compensates the phase of signal source itself, ensures that circuit itself will not generate signal
Phase perturbation improves the performance of lower quartz resonance of single supply power supply.In addition, the utility model by be arranged phase inverter, can
To reduce a large amount of components, circuit area is reduced, phase is more effectively compensated for.
Description of the drawings
Fig. 1 is a kind of signal processing circuit flow diagram based on quartz resonance；
Fig. 2 is a kind of specific embodiment for signal processing circuit based on quartz resonance that the utility model provides；
Fig. 3 is the sub- chip mounting method embodiment of quartz resonance；
Fig. 4 provides DC power supply embodiment for a kind of signal processing circuit based on quartz resonance.
Attached drawing mark is as follows：
1. quartz resonance subsignal source；11. shake beam chip on；12. shake beam linear amplifier circuit on；
13. shake beam phase compensating circuit on；14. shake beam inverter circuit on；21. shake beam chip on；
22. shake beam linear amplifier circuit on；23. shake beam phase compensating circuit on；24. shake beam inverter circuit on；
31. the beam that shakes supports；32. shake beam chip on；33. mass block；
34. shake beam under；41. zener diode；42. triode chip.
Specific implementation mode
The preferred embodiment that according to the present invention will be described in detail below with reference to the accompanying drawings.
Embodiment one
Referring to Fig. 1, the utility model discloses a kind of signal processing circuit based on quartz resonance, at the signal
Managing circuit includes：Linear amplifier circuit, phase compensating circuit, inverter circuit；Quartz resonance 1 is separately connected Linear Amplifer electricity
Road, phase compensating circuit, linear amplifier circuit, phase compensating circuit, inverter circuit are sequentially connected.
The linear amplifier circuit includes the first phase inverter, the 2nd 1 resistance R21, the first phase inverter and the 2nd 1 resistance
R21 is in parallel；The first end of quartz resonance connects the first end of the input terminal of the first phase inverter, the 2nd 1 resistance R21；The line
Property amplifying circuit to make quartz resonance generate sinusoidal signal carry out Linear Amplifer.
The phase compensating circuit includes the second phase inverter, the 3rd 1 resistance R31, the 4th 1 resistance R41, May Day resistance
R51, the 3rd 1 capacitance C31.The first end of the 3rd 1 resistance R31 is separately connected the output end of the first phase inverter, the 2nd 1
The second end of resistance R21；The second end of 3rd 1 resistance R31 is separately connected the input terminal of the second phase inverter, the 4th 1 resistance R41
First end, the first end of the 3rd 1 capacitance C31, the second end of the 4th 1 resistance R41 is separately connected the of the 3rd 1 capacitance C31
Two ends, the first end of May Day resistance R51, quartz resonance second end；Output end connection May Day electricity of second phase inverter
Hinder the second end of R51；The phase compensating circuit carries out phase compensation to the sinusoidal signal for making quartz resonance generate so that
Phase compensation feeds back to the signal phase of quartz resonance and former output sine wave phase difference meets setting range；
The inverter circuit includes third phase inverter, and the input terminal of third phase inverter is separately connected the defeated of the second phase inverter
The second end of outlet, May Day resistance R51；The inverter circuit exports TTL standards signal is become analog signal
Square wave.
Low and high level conversion can only occur when signal reaches phase inverter 14, output is TTL square waves.Processing circuit uses
10 and 20 two paths of signals and column processing circuit, reason have at 2 points：First be circuit generate signal drift can remove, in addition
One is quartz resonance minor structure；Such as Fig. 3, the quartz resonance sub-circuit of mainstream mostly uses double beam working methods of shaking up and down at present
30, this state can ensure error caused by removing its own gravity and the processing of upper and lower component 31 and 33, wherein 32 and 34 be upper
Symmetrical quartz resonance down.
As shown in Fig. 2, in another embodiment of the utility model, the signal processing circuit includes two signal processings
Sub-circuit, the signal that each signal processing sub-circuit respectively generates corresponding quartz resonance 11,21 are handled；First signal
Processing sub-circuit respectively includes the first linear amplifier circuit 12, first phase compensation circuit 13, the first inverter circuit 14；Second
Signal processing sub-circuit respectively includes the second linear amplifier circuit 22, second phase compensation circuit 23, the second inverter circuit 24.
In fig. 2, phase inverter is generated by chip CD4069UB, and signal reversion is generated by CD4069UB, and CD4069UB is one
Kind high-precision phase inverter chip, input service voltage are less than 20V, its working principle is that overturning input signal, high level input
Low level output, the output of low level input high level.The phase inverter chip CD4069UB is TEXAS INSTRUMENTS companies
Product.
Totally 5 kinds of models, capacitance are 3 kinds of models to the signal processing resistance that the utility model uses, and diode uses a kind of type
Number.R21 is connected in parallel on a phase inverter both ends, and R41 connects with R51, and R41 is in parallel with C31.DC power supply circuit kind diode D1 with
DC power supply anode is connected, and C1 is connected in parallel on both ends of power, and D2 and D1 uses same model, and effect is to clamp down on triode Q1, Q2 base
Pole tension is less than collector voltage, and D3 provides base voltage to Q1, Q2.
It is standard TTL square waves that quartz resonance subsignal is exported after treatment, and conventional mode is defeated for signal source
Go out waveform and directly carry out TTL conversions, has ignored the variation of signal source own phase, do not compensate such as, the signal of test can be caused
Cycle accuracy is relatively low.In addition, the phase inverter chip (such as CD4069UB) that signal processing uses, drive voltage range -0.5V~
20V, general use+5V power supplies.General circuit is directly by the directly inscribed+5V DC power supplies of user, but often user provides
DC power supply fluctuation is larger, although still in 14 working range of phase inverter, precision can be lost under different voltages for voltage.
In order to solve the problems, such as this, the direct current regulation circuit of Fig. 4 is used, input+15V voltages, voltage is in a certain range wave
Ensure that inverter input voltage is stablized in 5.6V in the case of dynamic.
The DC power supply circuit includes DC power supply DC, the first diode D1, the second diode D2, third diode
D3, the first triode Q1, the second triode Q2, the first capacitance C1, the second capacitance C2, first resistor R1.The DC power supply DC
The anode connection anode of the first diode D1, the first diode D1 cathode connection first resistor R1 first end, the first electricity
Resistance R1 second end be separately connected the first end of the first capacitance C1, the collector of the first triode Q1, the second triode Q2 collection
The anode of electrode, the second diode D2；The cathode of second diode D2 is separately connected the cathode of third diode D3, the second capacitance
The base stage of the first end of C2, the base stage of the first triode Q1, the second triode Q2.The cathode of the DC power supply DC is separately connected
The second end of the second end of first capacitance C1, the anode of third diode D3, the second capacitance C2.The hair of the first triode Q1
Emitter-base bandgap grading, the second triode Q2 emitter respectively as DC voltage output end.
In conclusion the utility model proposes the signal processing circuit based on quartz resonance, the utility model proposes
The signal processing circuit based on quartz resonance, the oscillator sine wave and direct impedance of quartz resonance output are by signal
After managing circuit, signal output is standard TTL waveforms, facilitates frequency test；In addition circuit mends the phase of signal source itself
It repays, ensures that circuit itself will not generate phase perturbation to signal, improve the performance of lower quartz resonance of single supply power supply.This
Outside, the utility model is by being arranged phase inverter, it is possible to reduce a large amount of components reduce circuit area, more effectively compensate for phase.
The signal processing circuit mode for providing quartz resonance is converted to the side TTL using current phase compensation and sinusoidal signal
Wave exports.It is every have both the above in any one processing mode all in the scope of this generation, be the protection model of the application
It encloses.
Here the description and application of the utility model are illustrative, are not wishing to the scope of the utility model being limited in
It states in embodiment.The deformation and change of embodiments disclosed herein are possible, for the ordinary skill people of those this fields
The replacement of embodiment and equivalent various parts are well known for member.It should be appreciated by the person skilled in the art that not taking off
In the case of spirit or essential characteristics from the utility model, the utility model can in other forms, structure, arrangement, ratio,
And it is realized with other components, material and component.It, can be to this in the case where not departing from the scope of the utility model and spirit
In disclosed embodiment carry out other deformations and change.
Claims (4)
1. a kind of signal processing circuit based on quartz resonance, which is characterized in that the signal processing circuit includes：Linearly put
Big circuit, phase compensating circuit, inverter circuit；
Quartz resonance is separately connected linear amplifier circuit, phase compensating circuit, linear amplifier circuit, phase compensating circuit, anti-
Phase device circuit is sequentially connected；
The linear amplifier circuit includes the first phase inverter, the 2nd 1 resistance R21, and the first phase inverter and the 2nd 1 resistance R21 are simultaneously
Connection；The first end of quartz resonance connects the first end of the input terminal of the first phase inverter, the 2nd 1 resistance R21；It is described linearly to put
Big circuit carries out Linear Amplifer to the sinusoidal signal for making quartz resonance generate；
The phase compensating circuit include the second phase inverter, the 3rd 1 resistance R31, the 4th 1 resistance R41, May Day resistance R51,
3rd 1 capacitance C31；
The first end of the 3rd 1 resistance R31 be separately connected the output end of the first phase inverter, the 2nd 1 resistance R21 second
End；The second end of 3rd 1 resistance R31 is separately connected first end, the third of the input terminal of the second phase inverter, the 4th 1 resistance R41
The second end of the first end of one capacitance C31, the 4th 1 resistance R41 is separately connected the second end of the 3rd 1 capacitance C31, May Day electricity
Hinder first end, the second end of quartz resonance of R51；The second end of output end connection May Day resistance R51 of second phase inverter；
The phase compensating circuit carries out phase compensation to the sinusoidal signal for making quartz resonance generate so that phase compensation is fed back to
The signal phase of quartz resonance meets setting range with former output sine wave phase difference；
The inverter circuit includes third phase inverter, and the input terminal of third phase inverter is separately connected the output of the second phase inverter
It holds, the second end of May Day resistance R51；The inverter circuit exports the standard sides TTL signal is become analog signal
Wave.
2. the signal processing circuit according to claim 1 based on quartz resonance, it is characterised in that：
The signal processing circuit includes two signal processing sub-circuits, and each signal processing sub-circuit is humorous to corresponding quartz respectively
The signal that oscillator generates is handled；Each signal processing sub-circuit respectively includes linear amplifier circuit, phase compensating circuit, reverse phase
Device circuit.
3. the signal processing circuit according to claim 1 based on quartz resonance, it is characterised in that：
The signal processing circuit further includes DC power supply circuit；
The DC power supply circuit includes DC power supply DC, the first diode D1, the second diode D2, third diode D3,
One triode Q1, the second triode Q2, the first capacitance C1, the second capacitance C2, first resistor R1；
The anode of the first diode D1 of anode connection, the cathode of the first diode D1 of the DC power supply DC connects first resistor
The first end of R1, the second end of first resistor R1 be separately connected the first end of the first capacitance C1, the first triode Q1 collector,
The anode of the collector of second triode Q2, the second diode D2；The cathode of second diode D2 is separately connected third diode
The base stage of the cathode of D3, the first end of the second capacitance C2, the base stage of the first triode Q1, the second triode Q2；
The cathode of the DC power supply DC is separately connected the second end of the first capacitance C1, the anode of third diode D3, the second electricity
Hold the second end of C2；
The emitter of the first triode Q1, the emitter of the second triode Q2 respectively as DC voltage output end.
4. the signal processing circuit according to claim 1 based on quartz resonance, it is characterised in that：
The chip of each phase inverter is the CD4069UB type products of TEXAS INSTRUMENTS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820735937.7U CN207910744U (en) | 2018-05-17 | 2018-05-17 | A kind of signal processing circuit based on quartz resonance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820735937.7U CN207910744U (en) | 2018-05-17 | 2018-05-17 | A kind of signal processing circuit based on quartz resonance |
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| Publication Number | Publication Date |
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| CN207910744U true CN207910744U (en) | 2018-09-25 |
Family
ID=63558479
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| CN201820735937.7U Active CN207910744U (en) | 2018-05-17 | 2018-05-17 | A kind of signal processing circuit based on quartz resonance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110689874A (en) * | 2019-09-06 | 2020-01-14 | Oppo广东移动通信有限公司 | Carrier circuit and directional sound production equipment |
| CN110988397A (en) * | 2019-12-19 | 2020-04-10 | 西安建筑科技大学 | Excitation circuit for quartz resonance accelerometer |
| CN111913006A (en) * | 2020-07-15 | 2020-11-10 | 北京自动化控制设备研究所 | Quartz vibrating beam accelerometer driving circuit |
-
2018
- 2018-05-17 CN CN201820735937.7U patent/CN207910744U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110689874A (en) * | 2019-09-06 | 2020-01-14 | Oppo广东移动通信有限公司 | Carrier circuit and directional sound production equipment |
| CN110988397A (en) * | 2019-12-19 | 2020-04-10 | 西安建筑科技大学 | Excitation circuit for quartz resonance accelerometer |
| CN110988397B (en) * | 2019-12-19 | 2022-02-11 | 西安建筑科技大学 | Excitation circuit for quartz resonance accelerometer |
| CN111913006A (en) * | 2020-07-15 | 2020-11-10 | 北京自动化控制设备研究所 | Quartz vibrating beam accelerometer driving circuit |
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