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Issue 3 ， 1992
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The Optical Characters of Synchrotron Radiation X-ray Lithography Beamline at BEPC
Abstract：The uniformity of the light intensity on the lithography plane and the effective spectral range for the designs of the lithography beamline are the important optical features.This paper analysed the main factor which influences the two features above,and put forwarded to improve the methods of illumination on the lithography plane,and finally presented the experimental results correspordingly.- 35
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Published：2020-08-12 -
The Vertical Meter Measuring Two-Dimensional Coordinates by Linear Movement of a Microscope
Abstract：This paper presents the uses of the vertical meter and reveals the problems of the primary one,put forward a new idea by which two-dimensional measurement can be completed by the linear movement of a microscope,including the principle of the measurement and several feasible optical structures.- 39
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Published：2020-08-12 -
The Lengths Selection for Raw Calcite and Prism in Iceland Spar Processing
Abstract：This paper studies the grinding in iceland spar prism making, giving a quantitative relation between the lengths of iceland spar and the available prism.The lengths of prism can be got from that of iceland spar;the lengths of iceland spar is also known from that of prism.A frame graph of computer program for the formulae is presented,and a series of useful data is given in the end of the paper.- 49
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Published：2020-08-12 -
The Inclined Angle Calculation of the Cutting Tool for Machining a Dihedral Angle by a Tapered Grinding Wheel
Abstract：In this paper,the equation that the cutting tool inclined angle φ should be satisfied is derived when a workpart with a dihedral angle 2α is machined by a tapered grinding wheel with a cone opex angle of 2β.The corresponding value of the angle is also given for practical uses.Keywords：Tapered Grinding Wheel;Dihedral Angle- 44
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Published：2020-08-12 -
A Study of Glass Beads for Reflecting Films
Abstract：This paper discusses formative technology of glass beads for reflecting films.High quality glass beads with diameters of 0.04—0.09 mm have been developed.- 42
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Published：2020-08-12 -
The Zoom and Stop Structure Design of the Zoom Lens
Abstract：This paper presents the design methods of the zoom and stop structure that are two important pares in a zoom lens.There are usually two types of the zoom structures in which one works by rotating a serew with multi-threads and the other works by the movement of a screw slot.The paper describes these structures in detail and also make a comparision between their characteristics.Finally the paper presents a method for designing a single-are stop by look-up table and drafting.- 71
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Published：2020-08-12 -
A Trajectory Planning of a Pantograph Legged Mechanism of Walking Robot
Abstract：This paper we synthesize the principle and kinematics of a pan tograph mechanism for walking robot,presented the requirement of walking robot for the trajectory of the foothold,and discussed it in detail.A method for interpolating in two sides and linking in middle of the trajectory of pantograph legged mechanism is give.This decreases the engry of walking robot,and increases the suitability.- 30
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Published：2020-08-12 -
The Electronic Design and Practlce of Research Using Circular Gratings as a National Angular Standard
Abstract：This paper introduces the operation principles,performances and usage of whole circuits in a calibration angular instrument with high accuracy,and the structure principles of each unit in the instrument and relative technique.- 39
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Published：2020-08-12 -
The Application of Network Topology Analysis Method in Establishing Model for Complex System
Abstract：A concept of Graph and Network is introduod into the mechanical system in the paper.It can be used to establish physical model and mathematical model for complex system.The principle of Mechanical Chain and Network Toplogy Analysis is discursed in detail.The model of constant,tension system in the machine of optical fibre tension testing is given as a example.- 44
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Published：2020-08-12 -
The Quantitative Measurement of the Two Dimensional Intensity Distribution of Star Image
Abstract：In this paper,a method is given to measure the two dimensional light intensity distribution of star image of microscope objective. It includes the experiment principle,the computation of two dimensional FFT with conventional computer,data fitting and software design.It discusses how to select the valur of measuring azimuth as well as the sampling interval of two dimensional FFT.- 37
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Published：2020-08-12 -
Surface Lubracity Improvement
Abstract：This paper discussed a important effect of surface energe in hydrodynamic lubricating and analysed ralation between solid surface energe and surface lubricity.Through experiments the author studied samples which are different in lubricity.The experiments showed the surface energe influences on the lubricating effect.- 49
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Published：2020-08-12 -
The Controlling and Testing of the Groove Pitch of Optical Disk
Abstract：This paper presents a method by which the grooves pitch of the optical disk can be controlled and tested according to the advanced computer control theary and techniques.It also analyzes the reason why the deviation may exist on the testing system and suggestes a method for improvement.- 49
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Published：2020-08-12 -
Electronic Control System for Active Stabilized Frequency Ring Dye Lasers
Abstract：Laser is now used in many fields of science researches,especially in laser spectroscopy,laser chemistry and isotope seperation. It is required precisly and characteristically for the lasers to operate with stable frequency,narrow spectrum range and continously regulated wavelengthes. We have succeeded in researching for and making out an active stabilized frequency ring dye laser.Its wavelength range is from 5700 to 6200A and can be regulated continously. The short-term stabilization of the laser frequency is no more than 1MHz and its long-term stabilization is less than 100MHz during one hour.The laser automatic scanning range is over 30 GHz without mode-hop. The main theory of stabilization of this kind of laser is based on a high precise interferometer used for detecting the variability of the laser frequency.Depending on three electronic control systems,we take feedback controls on several turnable elements for stabilizing frequency.This laser eletronic control system also uses an automatic locking method. This paper gives emphasis on the analysis about the technique of stable laser frequency control system.- 38
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Published：2020-08-12 -
A High Resolution Integrating A/D Realized by Counter
Abstract：This paper the model 8254 counter used in IBM PC/AT computer to realize high resolution(The highest is 16 bits)integrating analogto-digital converter is given in detail.- 32
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Published：2020-08-12 -
Applying Reverse File Sorting for Model Matching
Abstract：This paper discurses the feature data structure of reference pattern in pattern recognition technology and an algorithm of identificatior is desigred.- 55
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Published：2020-08-12 -
Vessels Wharf Monitoring and Targets Tracking
Abstract：In our researching system,many kinds of control functions have been finished for the conditions that used enable-saving hardware,through software method and multi-defined keyboard and its layer designing.This system structure is simple with easy comtrolling.- 40
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Published：2020-08-12 -
A Software Installation Method for the Insufficient Free Space of the System Disk
Abstract：It is proposed that a method of installing large VAX-Ⅱ software in a non-system disk when system free disk space is too small.The idea is removing temporary some files unused during installation to supply sufficient free disk space as requirement.One success example is include too.Keywords：VAX-Ⅱ Computer System;Software Installation;System Free Diks Space- 42
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Published：2020-08-12
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