CN104406769A - Self-adjusting automatic testing and analyzing system for transfer function of optical head torquer - Google Patents
Self-adjusting automatic testing and analyzing system for transfer function of optical head torquer Download PDFInfo
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- CN104406769A CN104406769A CN201410765520.1A CN201410765520A CN104406769A CN 104406769 A CN104406769 A CN 104406769A CN 201410765520 A CN201410765520 A CN 201410765520A CN 104406769 A CN104406769 A CN 104406769A
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Abstract
The invention discloses a self-adjusting automatic testing and analyzing system for transfer function of an optical head torquer. The automatic testing and analyzing system comprises an optical head, a displacement sensor, a photoelectric transducer, a signal amplifier, a signal converter, a negative feedback amplifying module, a data base, a data base management system and a data base controlling system. The automatic testing and analyzing system can conveniently and quickly test various property parameters of the optical head torquer, is quick, accurate, and low in cost, can realize monitoring and adjustment of all signals, reduces difficulty of manual inspection, and possibility of misoperation due to personnel fatigue, and realizes self-adjusting function of the system.
Description
Technical field
The present invention relates to a kind of self-regulation optical head torquer transfer function automatically to test and analytic system.
Background technology
Servo-control system is the complex art that collecting system design, mathematical modeling, system emulation, actual fabrication, a real time execution are integrated.Wherein, be a very important technology for the test of the transport function of nonlinear sensor and topworks.
Torquer is the core component of optical head servo control system, and it can adjust locus and the attitude of object lens in real time, realizes the read-write of data on the information track ensureing accurately to drop on all the time through the focal beam spot of torquer object lens information storage disc.Torquer belongs to precise light electromechanical assemblies, and its performance directly determines the performance of head systems.Therefore, need to test the characteristic of torquer.
At present, mostly torquer characteristic test system is to build based on Doppler vibrometer, by obtaining corresponding characterisitic parameter to the extraction of torquer system amplitude-frequency and phase-frequency characteristic.Because Doppler vibrometer price is very high, this type of test macro manufacturing cost is 600,000 ~ 1,000,000, very expensive; In addition, torquer characteristic test system of the prior art is adopted also to be not easy to build on a production line, be unfavorable for carrying out on-line checkingi in torquer production scene, properties of product when producing to torquer are monitored in real time and are brought difficulty, mostly be artificial on-line checkingi simultaneously, waste time and energy, easily cause personnel tired, affect Detection results.
Summary of the invention
For the problems referred to above, the present invention proposes a kind of self-regulation optical head torquer transfer function and automatically test and analytic system.
For solving above technical matters, technical scheme provided by the invention is:
A kind of self-regulation optical head torquer transfer function is tested and analytic system automatically, comprise optical head, displacement transducer, photoelectric transformer, signal amplifier, signal converter, negative feedback amplification module, database, data base management system (DBMS) and control system, its signal transmission relation is as follows:
Control system is according to test needs, export digital test signal, digital test signal passes to data base management system (DBMS) and signal converter, digital test signal stores with database by data base management system (DBMS), digital test signal is converted to simulating signal by synchronous signal converter, again also store with database through data base management system (DBMS), pass to negative feedback amplification module simultaneously, by the adjustment of negative feedback amplification module, the simulating signal of the equivalence of digital test signal is provided to be passed to optical head by with control system, optical head carries out displacement according to the simulating signal received, and simulating signal is passed to displacement transducer, simulating signal is passed to signal converter and data base management system (DBMS) by photoelectric transformer and signal amplifier by displacement transducer, data base management system (DBMS) is by analog signal storage and database, simulating signal is converted to digital feedback signal and passes to data base management system (DBMS) and control system by signal converter, digital feedback signal stores with database by data base management system (DBMS), control system processes digital feedback signal, final formation transport function, transport function also stores with database through data base management system (DBMS).
Above-mentioned a kind of self-regulation optical head torquer transfer function is tested and analytic system automatically, described data base management system (DBMS) and database data access layer process to as if single tuple, the set operation on upper strata is converted to unirecord operation by it.
Above-mentioned a kind of self-regulation optical head torquer transfer function is tested and analytic system automatically, and described data base management system (DBMS) supports the system of multi-CPU pattern.
Above-mentioned a kind of self-regulation optical head torquer transfer function is tested and analytic system automatically, and described data base management system (DBMS) is CreCloud U.S. letter cloud data base management system (DBMS).
Above-mentioned a kind of self-regulation optical head torquer transfer function is tested and analytic system automatically, and institute's displacement sensors is linear displacement transducer.
Above-mentioned a kind of self-regulation optical head torquer transfer function is tested and analytic system automatically, and described negative feedback amplification module comprises basic amplifier and feedback network.
Beneficial effect of the present invention is: native system can carry out the test of the multinomial characterisitic parameter of optical head moment apparatus quickly and easily, quick and precisely; With low cost, be no more than 1/10th of optical head moment apparatus test macro of the prior art; In conjunction with data base management system (DBMS) and database, record is carried out to all signals, result is established in convenient contrast and inspection survey, simultaneously management system and data base management system (DBMS) and connection, realize the monitoring to all signals and adjustment, not only reduce the difficulty of hand inspection, reduce the possibility that maloperation occurs because personnel are tired, achieve the self-regulating function of system simultaneously.
Accompanying drawing explanation
Fig. 1 systematic schematic diagram of the present invention.
Embodiment
A kind of self-regulation optical head torquer transfer function is tested and analytic system automatically, comprise optical head 1, displacement transducer 2, photoelectric transformer 3, signal amplifier 4, signal converter 5, negative feedback amplification module 6, database 7, data base management system (DBMS) 8 and control system 9, its signal transmission relation is as follows:
Control system 9 is according to test needs, export digital test signal, digital test signal passes to data base management system (DBMS) 8 and signal converter 5, digital test signal stores with database 7 by data base management system (DBMS) 8, digital test signal is converted to simulating signal by synchronous signal converter 5, again also store with database 7 through data base management system (DBMS) 8, pass to negative feedback amplification module 6 simultaneously, by the adjustment of negative feedback amplification module 6, the simulating signal of the equivalence of digital test signal is provided to be passed to optical head 1 by with control system 9, optical head 1 carries out displacement according to the simulating signal received, and simulating signal is passed to displacement transducer 2, simulating signal is passed to signal converter 5 and data base management system (DBMS) 8 by photoelectric transformer 3 and signal amplifier 4 by displacement transducer 2, data base management system (DBMS) 8 is by analog signal storage and database 7, simulating signal is converted to digital feedback signal and passes to data base management system (DBMS) 8 and control system 9 by signal converter 5, digital feedback signal stores with database 7 by data base management system (DBMS) 8, control system 9 pairs of digital feedback signals process, final formation transport function, transport function also stores with database 7 through data base management system (DBMS) 8.
Wherein said data base management system (DBMS) 8 and database 7 data access layer process to as if single tuple, the set operation on upper strata is converted to unirecord operation by it, data base management system (DBMS) 8 supports the system of multi-CPU pattern, data base management system (DBMS) 8 is CreCloud U.S. letter cloud data base management system (DBMS), institute's displacement sensors 2 is linear displacement transducer, and described negative feedback amplification module 6 comprises basic amplifier 61 and feedback network 62.
Self-regulation optical head torquer transfer function is tested automatically and analytic system can carry out the test of the multinomial characterisitic parameter of optical head moment apparatus quickly and easily, quick and precisely; With low cost, be no more than 1/10th of optical head moment apparatus test macro of the prior art; In conjunction with data base management system (DBMS) and database, record is carried out to all signals, result is established in convenient contrast and inspection survey, simultaneously management system and data base management system (DBMS) and connection, realize the monitoring to all signals and adjustment, not only reduce the difficulty of hand inspection, reduce the possibility that maloperation occurs because personnel are tired, achieve the self-regulating function of system simultaneously.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (6)
1. a self-regulation optical head torquer transfer function is tested and analytic system automatically, comprise optical head, displacement transducer, photoelectric transformer, signal amplifier, signal converter, negative feedback amplification module, database, data base management system (DBMS) and control system, its signal transmission relation is as follows: control system is according to test needs, export digital test signal, digital test signal passes to data base management system (DBMS) and signal converter, digital test signal stores with database by data base management system (DBMS), digital test signal is converted to simulating signal by synchronous signal converter, again also store with database through data base management system (DBMS), pass to negative feedback amplification module simultaneously, by the adjustment of negative feedback amplification module, the simulating signal of the equivalence of digital test signal is provided to be passed to optical head by with control system, optical head carries out displacement according to the simulating signal received, and simulating signal is passed to displacement transducer, simulating signal is passed to signal converter and data base management system (DBMS) by photoelectric transformer and signal amplifier by displacement transducer, data base management system (DBMS) is by analog signal storage and database, simulating signal is converted to digital feedback signal and passes to data base management system (DBMS) and control system by signal converter, digital feedback signal stores with database by data base management system (DBMS), control system processes digital feedback signal, final formation transport function, transport function also stores with database through data base management system (DBMS).
2. a kind of self-regulation optical head torquer transfer function as claimed in claim 1 is tested and analytic system automatically, described data base management system (DBMS) and database data access layer process to as if single tuple, the set operation on upper strata is converted to unirecord operation by it.
3. a kind of self-regulation optical head torquer transfer function as claimed in claim 1 is tested and analytic system automatically, and described data base management system (DBMS) supports the system of multi-CPU pattern.
4. a kind of self-regulation optical head torquer transfer function as claimed in claim 1 is tested and analytic system automatically, and described data base management system (DBMS) is CreCloud U.S. letter cloud data base management system (DBMS).
5. a kind of self-regulation optical head torquer transfer function as claimed in claim 1 is tested and analytic system automatically, and institute's displacement sensors is linear displacement transducer.
6. a kind of self-regulation optical head torquer transfer function as claimed in claim 1 is tested and analytic system automatically, and described negative feedback amplification module comprises basic amplifier and feedback network.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410765520.1A CN104406769A (en) | 2014-12-12 | 2014-12-12 | Self-adjusting automatic testing and analyzing system for transfer function of optical head torquer |
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| CN201410765520.1A CN104406769A (en) | 2014-12-12 | 2014-12-12 | Self-adjusting automatic testing and analyzing system for transfer function of optical head torquer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896230A (en) * | 2020-08-10 | 2020-11-06 | 西安工业大学 | Dynamic MTF transfer function detection system of photoelectric imaging system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896230A (en) * | 2020-08-10 | 2020-11-06 | 西安工业大学 | Dynamic MTF transfer function detection system of photoelectric imaging system |
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Application publication date: 20150311 |