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Issue 5 ， 1993
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On Computer-Aided Design of Reflective Spectrograph/monochromator
Abstract：On the basement of thoroughly researching of optical computer-aided design,applying the wavelength aberration theory which was estiblished by Micheal P. chrisp,this article has fabricated completefunction software which can be used in designing monochromator,spec-trograph.This software has functions of calculating aberrations,auto-designing,calculating resolving capability,drawing. The shape can be plane, sphere,ellipsoid, toroidal, paraboloid. The optical system can include some mirrors and holographic gratings.Compared with a few standard examples.such software have proved itself to be acurate in calculating aberrations,the effect of auto-desisn is good,and all of its functions are reliable. So this software can be used in real designing.- 32
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Published：2020-08-12 -
Optical System Illumination Software
Abstract：The methods of illuminance calculation of optical system are systematically analysed in this paper and a valuable program are presented.The program could be used to calculate the illuminance of such systems as plane, sphere,2-D curved surface,multi-D axisymmtric curved surface and so on. The lens reflection and absorption,central shade,lense coating,spectrum distribution of light source are all considered in the program.In addition,the utility of illuminance algorithm in the field of chromaticity is put forward and discussed.- 38
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Published：2020-08-12 -
Study on Optical Parallel Digital Computing
Abstract：Optoelectronic butterfly interconnection for parallel digital computing is studied in this paper. We apply this kind of optoelectronic architecture to parallel MSD algorithms, making any n-bit MSD addition/subtraction to be implemented after three stages of optical intercn-nection. Fast multiplication and division and M/B conversion can also be implemented in this optoelectronic butterfly interconnection network.Keywords：Digital optical computing;Optoelectronic butterfly interconnection;Parallel MSD algorithms- 29
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Published：2020-08-12 -
The Kesesrch on Equivalent Color Stimuluse in Color Adaptation and Contrast
Abstract：The effect of background color on color adaptation and contrast was studied in this paper. Some regularities have been summarized from a lot of experiments on different background colors. An experiment model on equivalent color stimulus has been deduced according to the experiment data. The model is simple and can be used to prrdict precisely equivalent color stimulus.- 31
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Published：2020-08-12 -
The Study and Manufacture of Variable Filters Used in Linear Detectors and Area Arravs Detectors
Abstract：By using self-desisning static plane baffles and vacuum coating technigue.we make two multi-channel variable filters used in the linear detector and area arrays detector.it is coated on the base slat with effective areas of 25.4?2.5mm and 6?6mm respectively;and we also describe the principle of forming these filters.the design and analysis of the film series,their constructing technigue and utilization in detail.The results of the experiment and the designing methods of plane baffles are given out; and we also prensent the designing results of static plane baffle that can be used in all kinds of optical film manufacturing.- 38
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Published：2020-08-12 -
The Preliminarg Study on High Power CO2 Laser Split-Color Element
Abstract：The Paper describes the primary research about the visible light-transmited and 10.6um-reflectd split-cotlor element by PVD method. The technique of the metal-media op-ticl coating is used, what is more, the techniques of the advanced coating and deposing after coating are applied, the split-cotlor element was made and produced a satisfatory result, in the repects of the optical character, the mechanical intensity, the energy density at threshold and stability.- 30
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Published：2020-08-12 -
Investigation on Soft X-ray Laser Produced Plasma Source
Abstract：This thesis designs a Laser -Produced Plasma(LPP) source with high precision rotation target system, The laser system used as excitation source is a Q-Switched Nb:YAG laser emitting energies from 100mJ to 800mJ at a wavelength of 1. 06um with pulse duration of 8ns (FWHM) and pulse repetition rate of 1Hz.5Hz and 10Hz in combination with two sorts of focusing lenses of 90mm and 240mm focal length. The LPP source developed has short duration of the emission (tens ns), small light spot(100-200um), high brightness and high intensity. It can produce considerable amount of Soft X-ray-Vaccum Ultraviolet spectra radiation both line emission and continue emission. In the mean time,the radiative peak wavelength can be adjusted from 13nm to 17nm. The stability and reproducibility of the LPP source is better than4.5%.Keywords：Laser-Prodiation;Plasma;Spectrum radiation Spectrum radiation Soft x-ray-vaccum;Ultraviolet- 62
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Published：2020-08-12 -
The Selection of Optimal Parameters Design for 1KW CO2 Laser
Abstract：Based on an new theoretical model of fast axial flow CO2 Lasers and Laser theories,the main physics parameters which influence the small signal gain,saturation parameter,output power,optical mode and other properties of laser,are discussed in this dissertation.The optimal parameters design for our 1KW CO2 laser, therefore, have been selected.- 36
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Published：2020-08-12 -
A Study of the Pre-formatting for Optical Disks
Abstract：In this paper, we analyze the information in every pre-formatting sectors, and then sdudy the modulation method of the information on optical disks,the computation of CRC, ECC and the Preformatting system for optical disks.- 27
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Published：2020-08-12 -
Study on Exciting Fluorescence Imaging System and Its Applications
Abstract：In this paper, a novel type of exciting fluorescence imaging system is reported. Composition,operating principle and performance of the system are introduced. For the use of a new SEC camera tube with gate,time-resolved imaging is successfully made out. Finally, the experiment studies on fluorescence detection of latent fingerprints and biological cells are also presented.- 63
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Published：2020-08-12 -
Computer Simulation and Technology Experiment for CCOS
Abstract：This paper deals with the basic theory, computer simulation algorithm as well as the technology experiment of CCOS based on controlling the tool’ s dwell time. It provides design references for CCOS NC machine both in theory and experiment, and also gives utility software and resonable technology paremeters for CCOS process. The work in this paper may lay a fundation to the deep study of CCOS terchnique.Keywords：CCOS;Computer simulation;Technology experiment- 42
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Published：2020-08-12 -
Evaluation of Ocean Color Imaging Spectrometer Experimental System (OCISES)Performance
Abstract：The experimental investigation of spectral and radiation performance,spatial resolution of OCISES are presented in this paper. Imasing spectral data processing by color coding method are discussed.- 33
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Published：2020-08-12 -
Parameters Design of High Precision Laser Phototype Setter
Abstract：In this paper, we present a creative principle model of high precision laser phototype setter. This model draws the virtue of present laser phototype setter, and overcomes their defect. So it makes this model more advenced and creative. This paper deals with many aspect knowledges of optics, precision mechanics and electronics. So we make a lot of research in the optical spot size of scanning optical system,the transmission error of mechanical chain and driving circuit of eletric motor.and find out a kind of principle model that meet future needs of color print of high speed,high precision and high resolusion.- 37
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Published：2020-08-12 -
High Frame Frequence TV Tracker
Abstract：In this paper, a high frame frequence TV tracker is introduced. A new method, calculation of the gravity centre for a target and a compatible method with standard TV monitor for high frame frequence image display, are presented. In this system, the deviation between the position of object and the main optical axis of the TV tracker can be outputed in real-time with only time delay of 0. 1ms after end of frame scan. The bandwith of the TV tracker is 25HZ. The tracking error of a complex axis servo system using this TV tracker has been achieved 20-30" under the maximum vilocity of 20?/s and the maximum acceleration of 20?/s2. The results of experiment are presented in the last paragraph of this paper.- 40
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Published：2020-08-12 -
Study on The Switchovers of Survey Sensors in The Theodolite Control System
Abstract：The switchover of survey sensors in the control system of theodolite is very important. In this paper, the effect of sensor parameters on the switchover is studied by the means of computer simulation and the method of normalization switchover is prompted. We get a very smoth switchover between the sensors by this method.Keywords：theodolite;Sensors switchover;Normalizattion- 32
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Published：2020-08-12 -
A Study of Using Spectral Filtering to Increase the Effect Range of TV Tracking System
Abstract：On the basis of throughly analysing all the factors that influence the radiance contrast of the object to background on the target area of the detector, a method of using spectral filtering to increase the effect range of TV tracking system is put up.For the sake of studying how to use spectral filtering to effectually raise the effect range, the author measured the objects spectral radiant intensity and studied the spectral radiance of the low sky background theorically according to the optical properties of the atmosphere and the atmospherical optical principle. Based on these reault of the measurement and theorical computation, the author uses computer simulating the effect of various filter,the result showed, the spectral filtering can effectually and steadily raised the radiance contrast of th object to background that on the target area of the detector, under the studied circumstance, the contrast has been raised above 4 - 7 times, the maximum effect range has been raised from 40km to 50~53km. The experiment result shows, under the experimental circumstance, the original contrast has been raised 1. 25~3. 59 times.Some improvemental proposal on the properties of the detector and the spectral properties of cooperate object are put up in this paper.Keywords：Radiance contrast;Spectral filtering;Effect range- 34
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Published：2020-08-12 -
Adaptive Control of DC Motor With Great Changed Load in Discrete Time Domain
Abstract：To improve the tracking precision or dynamic quality by using an adaptive control aimed at larger variable range of the inertia or friction moment,a 16-bit single chip computer,Mcs-98, is used for modeling the adaptive control (MRAC) and composed a single closed loop servo system. The design of hardware and software and the results of experiments are given in this paper.- 40
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Published：2020-08-12 -
The Applications of Image Identification Technique in Automatic Interpreter
Abstract：The automatic interpreting technique of point array and target missing point for interperting device is developed by means of image identification technique. Due to using the digital sampling card, programmed software and relative image processing technique, the automatic interperter for point array and missing target information has been solved. This kind of research sets up a new way to process interpreting information.- 35
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Published：2020-08-12 -
Design and Realization of Electro-Control System for Laser Phototype-setter with High Accuracy
Abstract：A electro-control system for laser phototype-setter using singl-chip micro-computer MCS51 was designed and realized. A new concept of primary and secondary scanning control was formed. In primary scanning system the construction was simplified without-using optical encoder and the reliability was raised. In secondary scanning system the fine control of step-motor was used for raising the accuracy of step-motor. The scanning coutrol of laser phototype-setter with different resolution was estalished by the help of single-chip microcompter.Keywords：Laser phottotype-setter;Seaming system;Optical encoder;Step-motor- 29
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Published：2020-08-12 -
The Investigation and Desigh of Command Control System Decision Software
Abstract：This paper presents the multistage and distribution expert integrated system for the command and control strategy. It gives the graded control strategy and blackboard structure is adopted. Finally, this article gives the designs of meta system, main Subsystem and blackboard structure.Keywords：Distribution;Expert system;Blackboard structure;Knowledge tree;Knowledge model;Strategy array;Direction drawing;Meta knowledge- 39
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Published：2020-08-12 -
Studies and Simulations on Using the State Feedback to Improve the Performance of the Servo-System
Abstract：In this paper, three new schemes, based on State Feedback of the Mordern Control Theory, is proposed to improve the performance of the Servo-Systerm with the Frequency-Method of the Classic Control Theory,the experiment result shows that,after adjustment, it can satiesfy the desigh demand. Then we have used the three schemes, the Full-State Feedback scheme of the Linear-Quadratic metod, the Full-State and Part-State feedback schemes of the Optimal-Transmit-Function method, to design the Servo-System, and have respectively gone about Computer Simulations. The result shows that all of the three schemes have largely improved the trend-state and static-state performances compared with the Frequency-Method design of the Classic Control Theory. In the three schemes, the Part-State feedback scheme of the Optimal-Transmit-Function method is the most valuable to apply and popularize. In the two Full-State feedback schemes, the Luenberger reduced-order state observer are used, and their simulation results show that it is practicable.- 33
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Published：2020-08-12 -
A Study and Design on the Structures of Distributed Computer Network
Abstract：Based on the structures and principles of distributed computer systems, this paper puts forward a interconnection metwork designing method suitable to C3I systems and its reconstructure tactics. It also presents a methodology for the availability and communication anaysis of repairable distributed computer systems.Keywords：Distributed computer system;Reliability;Interconnection network;Reconstruct;Availability- 41
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Published：2020-08-12 -
A Study of Laser Scanning Probe in Non-Contact Measurement
Abstract：This paper we report a design of a high accuracy, versatile non-contact laser scanning probe based on optical triangulation principle, and make a preliminary experiment on different diffuse surfaces, analyse the nonlinear deviation of the laser scannering probe.Keywords：Precision measuring;Non-contact measuring- 20
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Published：2020-08-12 -
A Study of Charge-Coupled-Device MTF Testing Method
Abstract：This paper analysises and discusses the probability to evaluate the character of CCD by the concept of MTF in theory, and gives the requirement to evaluate CCD by MTF; then this paper carefully discusses the method to evaluate the MTF of CCD, and gives the testing methol; in the end,this paper gives the testing result and conclusion.Keywords：CCD;MTF;Measurement;Study- 30
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Published：2020-08-12 -
Dynamic Measuring of Axis Rotating Accuracy
Abstract：In this paper, the curve-fitting method is used for fitting the measuring signal distinguishes and retains the first harmonic component; eliminates correctly the eccentricity of sphere, thus obtains the complete spindle error motion included the first harmonic component, and evaluates the error of spindle rotation with the center of LSC, and opens up a useful computer software which is easy to be operated and known well.Keywords：First harmonic copmonent;eccentricity;curve fitting;Center of LSC;Software- 32
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Published：2020-08-12 -
Measuring the Positions of Linear Array CCD’s Elements by Means of Digital Image Correlation
Abstract：In this paper, the digital image correlation tecniques are investigated for measuring the positions of the CCD elements. Using the real element images, the accuracy and noise immunity of several similarity measures are analyzed, and the proper similarity measures are find out, which have the matching accuracy of 1 pixel. The fast matching algorithms and the hardwares are used to improve the mathching efficeiency. The SSDA method is introduced to our measuring system, and its problem of the choice of the thresholds is investigated and solved. Another fast matching approach called Two-stagge-Template-optimizing Image Matching is put forward, which has no problems of the threshold choosing and has constant mathching speed. In the aspect of hardware, an accelerating card using TMS320C25 digital signal processor is designed to configurate a host/coprecessor high -speed system with the host computer.Keywords：Correlation;Match;Template;Reference window;Correlation function;Matching probility- 57
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Published：2020-08-12 -
Investigation on 3-D Profile Measurement of Aspheric Compensator
Abstract：A method of aspheric surface measurement by laser autocollimation is discussed in this paper, which is a non-contacting method but no fringes to be processed as interferometers need to do. Using CCD to detecting the output of surface slope, then the slope values obtained are integrated with respect to distance to obtain profile height. The measurement system is carefully analyzed in this paper by which rotational symmertrical mirrors used as a wavefront compensator in optical system can be surveyed along their meridians. Two demensional surveying can be carried out by rotating the mirror around its symmetrical axis in order to obtain the information data about the three dimensional profile of the test mirror. A reliable software to process the source data and to reconstruct the 3D profile of the test mirror is completed which can output height curve or surface profile and can also achieve other functions.Keywords：3-D profile measurement;Laser autocllimation;Aspheric measurement- 31
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Published：2020-08-12 -
A Study on the Theory and Measuring Technique of Transmission Error of Harmonic Gear Drive
Abstract：In this paper, error sources and the relation between error source and transimission error of harmonic gear drive is deeply analyzed based on its working principle and structure. Then synthesize these transimission errors by using stochastic error theory to write out estimative formula that calculate transimission error of harmonic gear drive. This paper also study the frequency spectrum of transimission error of harmonic gear drive.In this paper, the theoretical analysis is carried out for the beet frequency phenomenon of transimission error of harmonic gear drive and the reason that the beet frequency occur has been found and simulated.Finally, in this paper the measuring technique of transimission error and its Fourier spectrum of harmonic gear drive has been studied. The mesuring system has been built up and several harmonic gear drives have been measured using this measuring system. Based on the measuring results, the theoretical analyses have been vertified.Keywords：Harmonic gear drive;Transimission error;Frequency spectrum;Beet frequency phenomenon;Measuring technique- 31
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Published：2020-08-12 -
Analysis of Dynamic Load Sharing Condition About Typical NGW-Planet Gear Transmission
Abstract：In this paper,we study the differences between planet gear transmission with buoyant components and planet gear transmission without buoyant components get two kinds of even load condition by measuring and comparing the values of the bending deformation on each shaft of the planet gears; conduct the frequency analysis of the dynamic olad fluctuation curves of the planet gears through FT. Finally, we can find the affect levels of all kind errors for the even load of the planet gears. This analysis is helpfule for designing and manufacturing the planet gears.Keywords：Planet gear transimission;Even load test- 16
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Published：2020-08-12
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