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Issue 1 ， 1987
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Design of the Film Theodolits Tracking Servo System
Abstract：This paper represents a design method of the complex servo system.The design is simplified since compensate coefficient β is introduced and valocity loop is equivalent to link of the inertia.The method can be used in continuous systems and also in digital systems.It has been shown experimentaly thaf the method is good and useful.- 36
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Published：2020-08-12 -
Design of Optical System on All Bands CCD MSS on EROS
Abstract：In the paper, the principle and features of a multi spectral scanner (MSS) based on electronical scanning for earth resouces observation satellite (EROS) are described and optical system parameters of all bands CCD MSS are determined according to general scheme of the system.The structure of the optical system is selected and some ways for beam splitting are disscussed.Finally the design of a refracting-reflec-ting objective with long focal length is represented.- 27
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Published：2020-08-12 -
A Versatile Superlow Light Level TV System
Abstract：A superlow light level television system has been successfully developed.In this paper, the operating princeple design basic functions major performances of this instrument and its possible applications in some fields are briefly described.- 23
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Published：2020-08-12 -
A Computer Simulation for the Imaging of Stardard Objects in Partially Coherent Optical System
Abstract：This paper deals with the influences of diffrac tdegrees of coherence on the image field distribution of standard objects.Indicating the very close connections between the illuminating condition and image formation in partially coherent illumination optical systems.Based on and simplified the imagery theory of H.H.Hopkins, a FORTRAN program to simulate image of one dimensional standard objects under partially coherent illumination has been developed,thus obtaining a reliable method for selecting the optimal illuminating condition and for evaluating the optical system with partially coherent illumination.Our calculation on optical system with aberration shows that the image intensity distribution of a standard object can reflect sensitively the image qualily of the optical systems which therefore can be adopted as a quality criterion for practical optical systems with partially coherent illumination- 29
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Published：2020-08-12 -
A Foundation Experiment on Optical Configuration of Airborne Laser Units
Abstract：An experiment on parallelism specification of optical axes by using airborne laser range-finder sets out a reference for establishing optical configuration for some other airborne laser units.The experimental purpose method and its results are reported in this paper.Furthermore the experimental results are theoretically analysed.- 23
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Published：2020-08-12 -
Measurement of the Apparent Transfer Function of Systems with Partial Coherence Illumination
Abstract：This paper discribes a method for measuring apparent transfer function which specifies the basic frequency response of lenses with partial coherent illumination.This method is to use the Zernike’s circular polynomials to approximate the interference pattern which represents the wavefront at the exit pupil and to obtain the function of wavefront errors, then according to partial coherence theory to calculate the apparent transfer function.- 39
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Published：2020-08-12 -
Accuracy Analysis of Screw Transmission
Abstract：This paper desoribes the transmission error and backlash of serew train.It deals with the errors contributed to transmission by using mathematical statistics.And formulae of mathematical statistics have been given.- 47
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Published：2020-08-12 -
An Experimental Study of Chemical Vapour Deposition (CVD) of Silicon Carbide
Abstract：Through the experiment of CVD-SiC thick film on graphite Substrate, with system of CH3SiCl3/H2, temperature in range 1100℃—1500℃, under 1 atm pressure, it was observed that the total flow, temperature and the Concentration of CH3SiCl3 greatly influenced the coating rate.With SEM and X-Ray diffraction techniques, the morphology and microstructure of the coating were analysed.It comes into that the coating was thick column-shaped β-SiC, with the preferred ori-entation[111], and the coating rate got the maximum, when the processing temperature was 1300℃,the total flow 81/min, and concentration of CH3SiCl3 12mmol/min.In the above condition the coating volume come up to 10.mg/cm2 or so, within 20 minutes.- 43
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Published：2020-08-12 -
Hot-forging Optical Single Crystals and Calculating the Grain-size
Abstract：The development of hot-forging optical crystals is reviewed in this peper.Hot-forging strengthened single crystal NaCl markedly with an improved technique, while its optical transparence remained and the anealing removed its heat-stress effectively.The mathematical method used to calculate the net broadening of X-ray diffraction profiles was improved.The effective grain-size of the hot-forged crystal was calculated precisely for the first time.- 33
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Published：2020-08-12 -
The Error Analysis and Error Compensation of Robot Manipulator
Abstract：An analysis on error and related factors of robot manipulators is presented in this paper.The relations between errors of the end effect of the robot and all original errors are set up.A variety of partial derivative matrix as error transfer functions has been derived, and they can be expressed is a unifying form.The method fo error compensation is then discussed as well in this paper.- 36
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Published：2020-08-12 -
Interconnection of Optical Digital Computer
Abstract：This paper represents a view of present technologies for interconnection of optical digital computer,and of their applications for different levels in the computer.- 28
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Published：2020-08-12
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