CN208015707U - A kind of adjustable digital simulation locking phase amplification system of range - Google Patents
A kind of adjustable digital simulation locking phase amplification system of range Download PDFInfo
- Publication number
- CN208015707U CN208015707U CN201821173050.XU CN201821173050U CN208015707U CN 208015707 U CN208015707 U CN 208015707U CN 201821173050 U CN201821173050 U CN 201821173050U CN 208015707 U CN208015707 U CN 208015707U
- Authority
- CN
- China
- Prior art keywords
- pins
- capacitance
- resistance
- amplifier
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Amplifiers (AREA)
Abstract
The utility model is related to a kind of adjustable digital simulation locking phase amplification systems of range, including chopping zero-stabilizing amplifier connected in sequence, programmable amplifier group, analog switch, low-pass filter and analog-digital converter, the analog switch is also associated with high-speed comparator, and high-speed comparator is connected with phase shift amplifier；The system further includes controller, and analog switch, analog-digital converter and programmable amplifier group are connect with the controller, and the controller is also associated with computer end.The utility model changes measured signal range using its enlargement ratio, improves the universality of system entirety, practicability is stronger by being arranged with mutually increasing with the programmable amplifier of reverse phase, the positive reverse phase of progress signal.By the way that phase shift amplifier is arranged, the fragrance resolution ratio of system entirety is improved.By the way that analog switch is arranged, to reduce system overall calculation amount, so as to shorten the system-computed time.
Description
Technical field
The utility model is related to signal amplifying systems, belong to lock-in amplifier technical field, more particularly to one
The kind adjustable digital simulation locking phase amplification system of range.
Background technology
Lock-in amplifier needs to ensure that input signal is identical as the frequency of reference signal, phase difference is zero and amplitude preservation
Constant, the direct current signal that can just make output is directly proportional to the amplitude of measured signal.Existing lock-in amplifier is broadly divided into simulation
Two kinds of lock-in amplifier and digital lock-in amplifier, the operation principle of both lock-in amplifiers is identical, is all to use orthogonal solution
Tune method extracts useful signal.Analog lock-in amplifier be using integrated locking phase amplification chip, although its enlargement ratio fix,
Range is fixed, but somewhat expensive and universality is not high, and the higher harmonic wave of frequency or relatively low signal extraction effect are paid no attention to
Think.The reference signal processing unit of digital lock-in amplifier is realized using digital reference phase shift, although phase resolution can reach
Milli degree grade, but its is computationally intensive, the deadline is long.
Patent No. 201721253822.6, entitled " a kind of real-time single supply digital lock-in amplifier device " it is special
In sharp file, a kind of real-time single supply digital lock-in amplifier device is recorded, including：Central processing unit, the first digital-to-analogue conversion
Device, the first frequency overlapped-resistable filter, modulated signal output port, signal input port, the second frequency overlapped-resistable filter, analog-to-digital conversion
Device, the second digital analog converter, third frequency overlapped-resistable filter, signal output port, power conversion module, onboard clock, power supply connect
Mouth and grounding ports.The device also calculates a kind of locking phase amplification system in fact, and which solve amplifiers is of high cost, asking of having a single function
Topic, but it can not still accomplish universality, and it is complicated.
In Patent No. 201210134997.0, entitled " the digital lock of two-phase based on numeric field genlock algorithm
In the patent document of phase amplifier ", disclose a kind of two-phase digital lock-in amplifier, by front end small-signal modulate circuit,
90 ° of phase shifters of phaselocked loop, the multipath synchronous data capture card of sample rate >=10 times frequency input signal, computer composition；Wherein,
Front end small-signal modulate circuit include AD8665 amplifiers and AD8429 amplifiers, 90 ° of phase shifters of phaselocked loop include CD4046 and
CD4013, computer include bandpass filter and low-pass filter；90 ° of phase shifters of phaselocked loop generate the ginseng that 2 tunnels position differs 90 °
Signal is examined, front end small-signal modulate circuit generates differential signal all the way, and data collecting card differs the 2 tunnels position of synchronous acquisition
90 ° of reference signal and all the way differential signal are sent into computer；The computer extract real-time wherein fundamental frequency of reference signal all the way, so
This fundamental frequency is utilized to adjust the centre frequency of bandpass filter in real time afterwards, for filtering out the out-of-band noise of differential signal, the filter of this band logical
Wave device is FIR type bandpass filters；The reference signal TTL square waves that 2 tunnels position is differed 90 ° by computer are transformed into amplitude only+1
With the square wave of two kinds of amplitudes of -1 size；It is with two amplitudes by transformation respectively again by the differential signal of bandpass filter
+ -1 square wave is multiplied, and the signal after multiplication is respectively by the FIR type low-pass filters on each road, and then computer is sought low
The average value of pass filter output signal obtains the real and imaginary parts of original signal.The device also calculates a kind of locking phase amplification in fact
System, the problem which solve amplifier volumes is big, calculating speed is slow, but the amplifier calculate that complicated, calculation amount is low.
To sum up, in amplifier in the prior art or amplification system, there are no solve simultaneously its is of high cost, universality is poor,
Calculation amount is low and the technical issues of with duration.
Utility model content
Based on the above technical problem, the utility model provides a kind of adjustable digital simulation locking phase amplification system of range,
To solve, previous digital simulation locking phase amplification system is of high cost, poor practicability and calculation amount are low, the technical problem of time length.
In order to solve the above technical problems, the technical solution adopted in the utility model is as follows：
A kind of adjustable digital simulation locking phase amplification system of range, including it is chopping zero-stabilizing amplifier connected in sequence, program-controlled
Amplifier group, analog switch, low-pass filter and analog-digital converter, the analog switch are also associated with high-speed comparator, high speed
Comparator is connected with phase shift amplifier；
The system further includes controller, and analog switch, analog-digital converter and programmable amplifier group connect with the controller
It connects, the controller is also associated with computer end.
Based on system above, the programmable amplifier group includes non-inverting type programmable amplifier and inverting type programmable amplifier,
The input terminal of non-inverting type programmable amplifier and inverting type programmable amplifier is connect with the chopping zero-stabilizing amplifier output end, institute
The output end for stating non-inverting type programmable amplifier and inverting type programmable amplifier is connect with the analog switch, and the controller is same
It is connect with the non-inverting type programmable amplifier and inverting type programmable amplifier.
Based on system above, the controller is also associated with voltage control module, and voltage control module includes transformer
T12, rectifier diode component VD4, voltage-stabiliser tube VD5, diode D7, triode Q4, triode Q5, capacitance C71, capacitance C72, electricity
Hold C73, capacitance C74, resistance R12, resistance R37, resistance R38, resistance R39, relay K4, REG102 voltage converter ic
U7, mains supply interface J6 and electrical equipment wiring interface J7；The firewire of 1 pin and mains supply interface J6 of transformer T12
Pin be connected, 2 pins of transformer T12 are connected with the zero curve pin of mains supply interface J6,3 pins of transformer T12 with it is whole
1 pin for flowing diode assembly VD4 is connected, and 4 pins of transformer T12 are connected with 3 pins of rectifier diode component VD4, whole
Flow the 1 pin ground connection of diode assembly VD4,4 pins of rectifier diode component VD4 and one end of resistance R37, capacitance C73
The base stage of anode and triode Q4 are connected, the collector of triode Q4 and the other end of resistance R37 and the moon of voltage-stabiliser tube VD5
Extremely be connected, the emitter of triode Q4 and the anode of capacitance C71, REG102 voltage converter ics U7 In pins and
The E pins of REG102 voltage converter ics U7 are connected, and the Out pins of REG102 voltage converter ics U7 export 3.3V
The ADJ pins of direct current, REG102 voltage converter ics U7 are connected with the anode of capacitance C72, REG102 voltage Transform Sets
At GND pin and the cathode of capacitance C71 of circuit U 7, the cathode of capacitance C72, the cathode of capacitance C73, capacitance C74 it is positive, steady
The anode of pressure pipe VD5 and one end of resistance R38 are connected and are grounded, one end of resistance R38 and cathode, the diode of capacitance C74
The cathode of D7 and 5 pins of relay are connected, and 1 pin of relay is connected with electrical equipment firewire wiring interface, relay
2 pins empty, 3 pins of relay are connected with the firewire pin of mains supply interface J6, electrical equipment wiring interface J7's
Zero curve pin is connected with the zero curve pin of mains supply interface J6,4 pins of relay and the anode of diode D7 and three poles
The base stage of pipe Q5 is connected, and the emitter ground connection of triode Q5, the collector of triode Q5 is connected with one end of resistance R39, resistance
The other end of R39 is connected with one end of resistance R12, and the controller selects CC2530F256 type microprocessors, the resistance R12
The other end be connected with the P1_0 pins of CC2530F256 microcontrollers.
In conclusion by adopting the above-described technical solution, the utility model has the beneficial effects that：
1, the utility model utilizes it by being arranged with mutually increasing with the programmable amplifier of reverse phase, the positive reverse phase of progress signal
Enlargement ratio changes measured signal range, improves the universality of system entirety, practicability is stronger.
2, the utility model improves the fragrance resolution ratio of system entirety by the way that phase shift amplifier is arranged.
3, the utility model is by being arranged analog switch, to reduce system overall calculation amount, so as to shorten system
Calculate the time.
Description of the drawings
Fig. 1 is the general structure schematic diagram of the utility model；
Fig. 2 is the circuit diagram of voltage control module.
Specific implementation mode
The utility model will be further described below with reference to the accompanying drawings.The embodiment of the utility model includes but unlimited
In the following example.
Embodiment
As shown in Figure 1, a kind of adjustable digital simulation locking phase amplification system of range, including chopper-zero-stabilized connected in sequence are put
Big device, programmable amplifier group, analog switch, low-pass filter and analog-digital converter, the analog switch are also associated with high ratio
Compared with device, high-speed comparator is connected with phase shift amplifier；The system further includes controller, analog switch, analog-digital converter and program-controlled
Amplifier group is connect with the controller, and the controller is also associated with computer end；The programmable amplifier group includes same phase
The input terminal of type programmable amplifier and inverting type programmable amplifier, non-inverting type programmable amplifier and inverting type programmable amplifier with
The output end of chopping zero-stabilizing amplifier output end connection, the non-inverting type programmable amplifier and inverting type programmable amplifier with
The analog switch connection, the controller are equally connect with the non-inverting type programmable amplifier and inverting type programmable amplifier.
The present embodiment homologous signal is respectively sent to chopping zero-stabilizing amplifier and phase shift amplifier, and chopping zero-stabilizing amplifier can
Fixed enlargement ratio and elimination temperature drift and drift, are come in and gone out signal to two programmable amplifiers by chopping zero-stabilizing amplifier
In, two program-controlled high speed amplifiers make the programming amplifying with phase and reverse phase respectively to prime signal, with latter two programming amplifying
The input terminal of the signal access analog switch of device output；Homologous signal is sent to high-speed comparator by phase shift amplifier simultaneously,
Numerical control switch signal is used as after high-speed comparator shaping.Analog switch using the characteristic of numerical control switch as switch multiplier,
Using switch multiplier docking collect mail number locking phase be multiplied, and output AC/DC component to low-pass filter by AC compounent with make an uproar
Sound filters out, and leaves behind from flow component, is subsequently transmitted to controller by analog-digital converter, and the switching signal of analog switch is optional
Select the synchronizing signal or numerical control switch signal of controller.Controller exchanges storage with computer end interaction progress data, finally
The size of measured signal can be obtained by the chopping zero-stabilizing amplifier of setting and the multiplying power inverse of programmable amplifier.
As shown in Fig. 2, in the present embodiment, the controller is also associated with voltage control module, and voltage control module includes
Transformer T12, rectifier diode component VD4, voltage-stabiliser tube VD5, diode D7, triode Q4, triode Q5, capacitance C71, capacitance
C72, capacitance C73, capacitance C74, resistance R12, resistance R37, resistance R38, resistance R39, relay K4, REG102 voltage Transform Sets
At circuit U 7, mains supply interface J6 and electrical equipment wiring interface J7；1 pin of transformer T12 and mains supply interface J6
Firewire pin be connected, 2 pins of transformer T12 are connected with the zero curve pin of mains supply interface J6, and the 3 of transformer T12 draws
Foot is connected with 1 pin of rectifier diode component VD4,4 pins of transformer T12 and the 3 pin phases of rectifier diode component VD4
Even, the 1 pin ground connection of rectifier diode component VD4,4 pins of rectifier diode component VD4 and one end of resistance R37, capacitance
The anode of C73 and the base stage of triode Q4 are connected, the collector of triode Q4 and the other end and voltage-stabiliser tube of resistance R37
The cathode of VD5 is connected, and the emitter of triode Q4 and the In of the anode of capacitance C71, REG102 voltage converter ics U7 draw
The E pins of foot and REG102 voltage converter ics U7 are connected, and the Out pins of REG102 voltage converter ics U7 are defeated
Go out 3.3V direct currents, the ADJ pins of REG102 voltage converter ics U7 are connected with the anode of capacitance C72, REG102 voltages
The GND pin of converter ic U7 and the cathode of capacitance C71, the cathode of capacitance C72, the cathode of capacitance C73, capacitance C74
Anode, the anode of voltage-stabiliser tube VD5 and resistance R38 one end be connected and be grounded, one end of resistance R38 and the cathode of capacitance C74,
The cathode of diode D7 and 5 pins of relay are connected, and 1 pin of relay is connected with electrical equipment firewire wiring interface,
2 pins of relay empty, and 3 pins of relay are connected with the firewire pin of mains supply interface J6, and electrical equipment wiring connects
The zero curve pin of mouthful J7 is connected with the zero curve pin of mains supply interface J6,4 pins of relay and the anode of diode D7 with
And the base stage of triode Q5 is connected, the emitter ground connection of triode Q5, the collector of triode Q5 and one end phase of resistance R39
Even, the other end of resistance R39 is connected with one end of resistance R12, and the controller selects CC2530F256 type microprocessors, described
The other end of resistance R12 is connected with the P1_0 pins of CC2530F256 microcontrollers.
In the present embodiment, voltage control module, which is converted, to be formed 3.3V direct currents and directly powers to controller.
It is the embodiments of the present invention as described above.Each preferred embodiment described previously for the utility model,
Preferred embodiment in each preferred embodiment if not apparent contradictory or premised on a certain preferred embodiment,
Each preferred embodiment can arbitrary stack combinations use, the design parameter in the embodiment and embodiment be only for
The utility model verification process of clear statement inventor, not limiting the scope of patent protection of the utility model, this reality
It is still subject to its claims with novel scope of patent protection, in every specification and attached drawing with the utility model
Equivalent structure made by appearance changes, and similarly should be included in the scope of protection of the utility model.
Claims (3)
1. a kind of adjustable digital simulation locking phase amplification system of range, it is characterised in that：It is put including chopper-zero-stabilized connected in sequence
Big device, programmable amplifier group, analog switch, low-pass filter and analog-digital converter, the analog switch are also associated with high ratio
Compared with device, high-speed comparator is connected with phase shift amplifier；
The system further includes controller, and analog switch, analog-digital converter and programmable amplifier group are connect with the controller, institute
It states controller and is also associated with computer end.
2. the adjustable digital simulation locking phase amplification system of a kind of range according to claim 1, it is characterised in that：The journey
It includes non-inverting type programmable amplifier and inverting type programmable amplifier to control amplifier group, and non-inverting type programmable amplifier and inverting type are program-controlled
The input terminal of amplifier is connect with the chopping zero-stabilizing amplifier output end, the non-inverting type programmable amplifier and inverting type journey
Control amplifier output end connect with the analog switch, the controller equally with the non-inverting type programmable amplifier and reverse phase
Type programmable amplifier connects.
3. the adjustable digital simulation locking phase amplification system of a kind of range according to claim 1, it is characterised in that：The control
Device processed is also associated with voltage control module, and voltage control module includes transformer T12, rectifier diode component VD4, voltage-stabiliser tube
VD5, diode D7, triode Q4, triode Q5, capacitance C71, capacitance C72, capacitance C73, capacitance C74, resistance R12, resistance
R37, resistance R38, resistance R39, relay K4, REG102 voltage converter ic U7, mains supply interface J6 and electricity consumption are set
Standby wiring interface J7；1 pin of transformer T12 is connected with the firewire pin of mains supply interface J6,2 pins of transformer T12
It is connected with the zero curve pin of mains supply interface J6,3 pins of transformer T12 and the 1 pin phase of rectifier diode component VD4
Even, 4 pins of transformer T12 are connected with 3 pins of rectifier diode component VD4, and 1 pin of rectifier diode component VD4 connects
Ground, 4 pins of rectifier diode component VD4 and one end of resistance R37, the base stage phase of the anode of capacitance C73 and triode Q4
Even, the collector of triode Q4 is connected with the cathode of the other end of resistance R37 and voltage-stabiliser tube VD5, the emitter of triode Q4
With the anode of capacitance C71, the In pins of REG102 voltage converter ics U7 and REG102 voltage converter ics U7
E pins be connected, the Out pins of REG102 voltage converter ics U7 export 3.3V direct currents, REG102 voltage Transform Sets
It is connected with the anode of capacitance C72 at the ADJ pins of circuit U 7, the GND pin and capacitance of REG102 voltage converter ics U7
The anode and resistance of the cathode of C71, the cathode of capacitance C72, the cathode of capacitance C73, the anode of capacitance C74, voltage-stabiliser tube VD5
One end of R38 is connected and is grounded, one end of resistance R38 and the cathode of capacitance C74, the cathode of diode D7 and relay 5
Pin is connected, and 1 pin of relay is connected with electrical equipment firewire wiring interface, and 2 pins of relay empty, and the 3 of relay
Pin is connected with the firewire pin of mains supply interface J6, zero curve pin and the mains supply interface of electrical equipment wiring interface J7
The zero curve pin of J6 is connected, and 4 pins of relay are connected with the base stage of the anode of diode D7 and triode Q5, triode Q5
Emitter ground connection, the collector of triode Q5 is connected with one end of resistance R39, the other end of resistance R39 and the one of resistance R12
End is connected, and the controller selects CC2530F256 type microprocessors, the other end and the CC2530F256 micro-controls of the resistance R12
The P1_0 pins of device processed are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821173050.XU CN208015707U (en) | 2018-07-24 | 2018-07-24 | A kind of adjustable digital simulation locking phase amplification system of range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821173050.XU CN208015707U (en) | 2018-07-24 | 2018-07-24 | A kind of adjustable digital simulation locking phase amplification system of range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208015707U true CN208015707U (en) | 2018-10-26 |
Family
ID=63893424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821173050.XU Active CN208015707U (en) | 2018-07-24 | 2018-07-24 | A kind of adjustable digital simulation locking phase amplification system of range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208015707U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768386A (en) * | 2018-07-24 | 2018-11-06 | 成都意科科技有限责任公司 | A kind of adjustable digital simulation locking phase amplification system of range |
| CN111443383A (en) * | 2020-04-07 | 2020-07-24 | 中国地震局地震预测研究所 | Data acquisition device for coal mine |
-
2018
- 2018-07-24 CN CN201821173050.XU patent/CN208015707U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768386A (en) * | 2018-07-24 | 2018-11-06 | 成都意科科技有限责任公司 | A kind of adjustable digital simulation locking phase amplification system of range |
| CN111443383A (en) * | 2020-04-07 | 2020-07-24 | 中国地震局地震预测研究所 | Data acquisition device for coal mine |
| CN111443383B (en) * | 2020-04-07 | 2023-02-10 | 中国地震局地震预测研究所 | Data acquisition device for coal mine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208015707U (en) | A kind of adjustable digital simulation locking phase amplification system of range | |
| CN107632200B (en) | Harmonic detection method based on discrete Fourier transform | |
| CN103197130B (en) | A kind of voltage zero-crossing point of power grid detection method and device | |
| CN103630748A (en) | Device and method for harmonic impedance measurement of micro-grid | |
| CN109946540B (en) | Detection circuit and detection method of sine and cosine resolver | |
| CN206259920U (en) | One kind is based on double Second Order Generalized Integrator phaselocked loops | |
| CN103630749A (en) | Harmonic injection device for harmonic impedance measurement of power grid | |
| CN109474012B (en) | Frequency coupling suppression method of three-phase grid-connected converter under weak grid condition | |
| CN207399155U (en) | Signal filtering process Compare System based on analog-digital converter | |
| CN108768386A (en) | A kind of adjustable digital simulation locking phase amplification system of range | |
| CN206892172U (en) | A kind of phase voltage Acquisition Circuit of frequency converter output | |
| CN210639247U (en) | Weak voltage signal detection system based on power isolation | |
| CN107765085A (en) | A kind of signal supervisory instrument and method | |
| CN205317850U (en) | Device based on inside AD of singlechip realizes exchanging sampling | |
| CN201285409Y (en) | Phase voltage detection circuit | |
| CN206389340U (en) | A kind of filter in transformer frequency sweep impedance method | |
| CN204633348U (en) | A kind of circuit controlling the same homophase frequently of wind-force combining inverter | |
| CN207369057U (en) | Many intelligence network exact demands and precisely supply intelligent management system | |
| CN203054092U (en) | Apparatus for extracting DC (direct current) signal from AC-DC (alternating current-direct current) superposed signal | |
| CN114123346B (en) | General DFF-SAI phase locking method under positive sequence rotation coordinate system | |
| CN106787650B (en) | The Direct Current that active secondary pulsation inhibits under unbalanced power supply instructs calculation method | |
| CN214591177U (en) | Alternating information detection circuit, power control circuit and water dispenser | |
| CN205786850U (en) | A kind of mains by harmonics signals collecting pretreatment circuit | |
| CN203287434U (en) | Module applicable to high-frequency harmonic detection of power quality | |
| CN209281373U (en) | Direct current biasing for human body Collection equipment eliminates circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |