CN103309240B - A kind of dither target simulator based on Piezoelectric Ceramic - Google Patents
A kind of dither target simulator based on Piezoelectric Ceramic Download PDFInfo
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- CN103309240B CN103309240B CN201210064493.6A CN201210064493A CN103309240B CN 103309240 B CN103309240 B CN 103309240B CN 201210064493 A CN201210064493 A CN 201210064493A CN 103309240 B CN103309240 B CN 103309240B
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- nano ceramics
- actuate actuators
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- optical collimator
- laser instrument
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Abstract
A kind of dither target simulator based on Piezoelectric Ceramic, it comprises optics vibration isolation table, optics vibration isolation table is provided with laser instrument, and the laser that laser instrument sends enters optical collimator, and optical collimator rear arranges nano ceramics actuate actuators; Wherein, the distance of laser instrument and optical collimator is adjustable, and sensor is provided with in nano ceramics actuate actuators, the signal gathered is sent in AD capture card by sensor, the sensor signal that AD capture card obtains and the residual error data obtained in advance are all admitted in controller carries out PID arithmetic, controller is delivered to operation result in DA control card, and DA control card is connected with driver module, and driver module drives the action of nano ceramics actuate actuators.The present invention simulates the target of different residual error and the generation of compound residual error from axle characteristic by " optical means ", thus debugs for superhigh precision pointing controls internal field the support that provides the necessary technical.
Description
Technical field
The present invention relates to a kind of dither target internal field analogue means, by adopting nano ceramics Driving technique to change target light incident angle to reach the target simulating different vibration characteristics, thus complete pointing system the assessment of Vibration Targets tracking accuracy is tested.
Background technology
Superhigh precision tracking is carried out to Weak target, requires that pointing system has high pointing precision (general precision is within 10urad); Meanwhile, because vibration is very large on the impact of precision optics detection accuracy, the impact therefore testing these residual errors in engineering by experiment becomes the problem that is needed badly solution.But, analyze, eliminate or suppress these residual error needs to make great many of experiments in internal field, to grasp Photodetection system intrinsic property and the pid parameter Changing Pattern of control system when transient state and stable state, realize systematic parameter optimized design.Therefore, the present invention is intended to be superhigh precision pointing system internal field light closed-loop experiment provides high precision, wide frequency domain Vibration Targets to simulate.
Summary of the invention
The object of this invention is to provide a kind of superhigh precision pointing technology internal field target simulator, for the debugging of completion system internal field provides necessary technology to support.
For achieving the above object, the present invention is by the following technical solutions:
The present invention includes optics vibration isolation table, optics vibration isolation table is provided with laser instrument, the laser that laser instrument sends enters optical collimator, and optical collimator rear arranges nano ceramics actuate actuators; Wherein, the distance of laser instrument and optical collimator is adjustable, and sensor is provided with in nano ceramics actuate actuators, the signal gathered is sent in AD capture card by sensor, the sensor signal that AD capture card obtains and the residual error data obtained in advance are all admitted in controller carries out PID arithmetic, controller is delivered to operation result in DA control card, and DA control card is connected with driver module, and driver module drives the action of nano ceramics actuate actuators.
Described optical collimator comprises the diaphragm, lens I, lens II, lens III and the quick titling mirror that from left to right set gradually.
Described lens I relative lens III locus is adjustable, and lens II relative lens III is fixed.
Described nano ceramics actuate actuators is arranged on fastening adjustment device.
Adopt the present invention of technique scheme, simulate the target of different residual error and the generation of compound residual error from axle characteristic by " optical means ", thus debug for superhigh precision pointing controls internal field the support that provides the necessary technical; Meanwhile, comparatively adopt shaking table to carry out the device of intended vibratory simulation, owing to adopting Piezoelectric Ceramic technology, therefore the present invention can simulate higher target trajectory precision and wider frequency domain, and engineering also more easily realizes.Have the following advantages:
1, the present invention breaks through the conventional frame pattern in the past adopting Research on Shaking Table for Simulating target, by gathering the control inputs of vibration data as analog vibration target of shaking platform and target;
2, adopt nano ceramics to drive quick titling mirror FSM, by controlling the dynamic conditioning of catoptron realization to objective optics angle of deviation, thus under realizing carrier-borne condition, different residual error and compound residual error cause the high-precision analog of target dynamic kinetic characteristic;
3, compared with existing common Vibration Targets semi-true object emulation technology, this equipment adopts the nano ceramics Drive Control Technique of Based PC online programming, can the higher path accuracy of simulated target and wider vibration frequency domain characteristic.
Accompanying drawing explanation
Fig. 1 is light path principle figure of the present invention.
Fig. 2 is mechanical schematic diagram of the present invention.
Fig. 3 is system hardware connection layout of the present invention.
Embodiment
As shown in Figure 2, the present invention includes optics vibration isolation table 1, optics vibration isolation table 1 is provided with laser instrument 3, the laser that laser instrument 3 sends enters optical collimator 2, optical collimator 2 rear arranges nano ceramics actuate actuators 4, and above-mentioned nano ceramics actuate actuators 4 is arranged on fastening adjustment device 5.Wherein, optics vibration isolation table 1 can isolate the vibration of being transmitted three directions come by ground, and the optical collimator 2 that it is installed is for fastening and the adjustment height of laser instrument, the displacement in orientation, and optical collimator 2 is adjustable with the distance of laser instrument 3; Nano ceramics actuate actuators 4 is the Piezoelectric Ceramic actuator based on nanometer positioning, it is for providing quick titling mirror FSM two dimension drived control, fastening adjustment device 5 below it has height, orientation and lifting three-dimensional regulation function, for fastening and the height of adjustment nano ceramics actuate actuators 4, the displacement in orientation.
As shown in Figure 1, optical collimator 2 comprise from left to right set gradually diaphragm 6, lens I LEN1, lens II LEN2, lens III LEN3 and quick titling mirror FSM, wherein, lens I LEN1 relative lens III LEN3 locus is adjustable, and lens II LEN2 relative lens III LEN3 fixes.Quick titling mirror FSM adopts " gluing form " to be connected with nano ceramics actuate actuators 4, adopt " point sticky " method to realize connecting of FSM and nano ceramics actuate actuators; For suppressing aberration effects, " point is sticky " carries out face shape to FSM after completing and tests, and surface figure accuracy RMS is not more than λ/4, and λ is optical wavelength.
As shown in Figure 3, nano ceramics actuate actuators 4 is provided with two sensors, physically, nano ceramics actuate actuators 4, two SGS sensors and catoptron integrate, and wherein two SGS sensors are for measuring the stroke of the piezoelectric ceramics rod realizing the motion of X and Y both direction.During work, the signal gathered is sent in AD capture card by sensor, and AD capture card comprises two-way 16 analog acquisition passages, Real-time Collection two-way SGS sensor signal, and is converted to digital quantity; Afterwards, the sensor signal that AD capture card obtains and the residual error data of t obtained in advance are all admitted in controller carries out PID arithmetic, controller is delivered to operation result in DA control card, DA control card comprises two-way 16 analog output channels, controller operation result is converted to analog quantity and exports driver module to, driver module completes drive singal and amplifies process and filtering, rear drive nano ceramics actuate actuators 4 make stretching motion, and drive catoptron to make yaw motion.
Control principle of the present invention is: adopt detector to gather pointing system vibration, obtain target travel residual error data Ψ
0; And to Ψ
0carry out signal spectral analysis.For eliminating the impacts such as noise of detector, after needing that the signal collected is carried out necessary filtering process, export residual error data Ψ
1.Laser instrument passes through optical collimator emitting parallel light to quick titling mirror FSM; Meanwhile, set up quick titling mirror FSM drived control transport function, its process of establishing is prior art, is then realized the sinusoidal signal driving quick titling mirror FSM of different frequency and amplitude by programmed control; Thus produce the axial-shift of quick titling mirror FSM corresponding frequencies and amplitude, the axial wobble of quick titling mirror FSM, cause the actual optical axis of target light to launch skew, thus finally realize the target simulation motion of different frequency and amplitude.
Claims (4)
1. the dither target simulator based on Piezoelectric Ceramic, it is characterized in that: it comprises optics vibration isolation table (1), optics vibration isolation table (1) is provided with laser instrument (3), the laser that laser instrument (3) sends enters optical collimator (2), optical collimator (2) rear arranges nano ceramics actuate actuators (4), and described nano ceramics actuate actuators (4) adopts " gluing form " to be connected with quick titling mirror (FSM), wherein, laser instrument (3) is adjustable with the distance of optical collimator (2), and sensor is provided with in nano ceramics actuate actuators (4), the signal gathered is sent in AD capture card by sensor, the sensor signal that AD capture card obtains and the residual error data obtained in advance are all admitted in controller carries out PID arithmetic, controller is delivered to operation result in DA control card, DA control card is connected with driver module, driver module drives nano ceramics actuate actuators (4) action, produce the axial-shift of quick titling mirror (FSM) corresponding frequencies and amplitude, realize the target simulation motion of different frequency and amplitude.
2. the dither target simulator based on Piezoelectric Ceramic according to claim 1, is characterized in that: described optical collimator (2) comprises the diaphragm (6), lens I (LEN1), lens II (LEN2), lens III (LEN3) and the quick titling mirror (FSM) that from left to right set gradually.
3. the dither target simulator based on Piezoelectric Ceramic according to claim 2, it is characterized in that: described lens I (LEN1) relative lens III (LEN3) locus is adjustable, lens II (LEN2) relative lens III (LEN3) is fixed.
4. the dither target simulator based on Piezoelectric Ceramic according to claim 1, is characterized in that: described nano ceramics actuate actuators (4) is arranged on fastening adjustment device (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210064493.6A CN103309240B (en) | 2012-03-13 | 2012-03-13 | A kind of dither target simulator based on Piezoelectric Ceramic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210064493.6A CN103309240B (en) | 2012-03-13 | 2012-03-13 | A kind of dither target simulator based on Piezoelectric Ceramic |
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| CN103309240A CN103309240A (en) | 2013-09-18 |
| CN103309240B true CN103309240B (en) | 2015-11-04 |
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| CN201210064493.6A Expired - Fee Related CN103309240B (en) | 2012-03-13 | 2012-03-13 | A kind of dither target simulator based on Piezoelectric Ceramic |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716471A (en) * | 2014-12-02 | 2016-06-29 | 哈尔滨新光光电科技有限公司 | Method for simulating objective shaking through electromagnetic adsorption reflector |
| WO2020232609A1 (en) * | 2019-05-20 | 2020-11-26 | 西门子股份公司 | System and method for training or testing state monitoring module |
| CN115308896B (en) * | 2022-07-14 | 2024-08-16 | 中国科学院西安光学精密机械研究所 | Piezoelectric ceramic quick reflector driving control circuit |
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| US4577932A (en) * | 1984-05-08 | 1986-03-25 | Creo Electronics Corporation | Multi-spot modulator using a laser diode |
| US5517359A (en) * | 1995-01-23 | 1996-05-14 | Gelbart; Daniel | Apparatus for imaging light from a laser diode onto a multi-channel linear light valve |
| CN1760636A (en) * | 2005-11-02 | 2006-04-19 | 哈尔滨工业大学 | Long-distance 2D polarized photoelectric autocollimation device and method for drift quantity returned from feedback of target drone |
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