Abstract:Using a laser produced-plasma as soft X-ray source for contact lithography is described in this paper and the resolution of our experiment is better than 5μm.
Lin Zhongchun,Guo Shanhe,Zhang Tieniang,Shen Xianguo,Zhong Jiangfan
Vol. 1, Issue 4, Pages: 6-8(1993)
Abstract:This paper mainly presents a method for auto-control of 3-D rotary platform by microcamputer,and also the principle software programme,error analysis for the rotary angle display in real time.
Abstract:In the area of precision machinery design,a new tendency appeared by using Error Averaging Principle from 1970s. By means of using this principle,the machinery moving accuracy and position accuracy have been improved a great deal. This paper describes the machinery principle of errpr averaging,the possible conditions in designing and various practical examples,and also analyzes the problems in using the principle to design.
Abstract:In this paper,the loading capacity of aerostatic slideways under the action of pouring moment and vertical pressure is analysed.On this basis the aerostatic slideways for cars safe strip acceleratian lock set is designed. A more practical method of calculation is described.
Abstract:This paper gives block-modulus combinations of 24 kinds of spatially opened motion chains with 5 or 6 degrees of freedom and 28 kinds of spatially closed motion with 2 degrees of freedorn,describes a method to solve the problem of determing the coordinates of the double spatial motion by the double motion ploes of the RS and PS,and suggests a possible approach for finding a new closed robotic mechanims.
Abstract:This paper give the algorithm of structural-parametric synthesis of manipulators with two working merhanisrns,discusses the general characteristics of drifting,directing and transfering manipuladors in detail and analyses the features of manipulators with motion co-ordination of the working mechanisms with entrance link.
Abstract:This paper analyses the principles of existing involute testers and demostrates a new measuring method for testing the involute tooth prafile of super-precision gears. By analysing and calculating,it is proved that the double-disk involute tester developed at the Changchun Institute of Optics and Fine Mechanics can meet the requirements for measurting the involute tooth profile of grade one precison master gears in the standard of GB10095-88 and DIN 3962-78.
Abstract:Involute prototype is the datum for examining the gears involute measrrement instrument.To measue the involute prototype.We need more preeise method and device. This paper introduces the prineiples of testing involute prototype and the uneertainty of those instraments.emphasis on that developed at the Changchun Institute of Optics and Fine Mechanics.Results show that kind of instrument can be used for examining the first grade involute prototype of GB6467-86.
Abstract:Thic paper introduces the system configuration main functions and features of the WSZ-1 microcomputer measuring instrument for the petroleum product distillation.
Abstract:In this paper we introduce the design and fabrication technique of nonlinear interference filter acing CdS as a spacer,and describe optical characteristics of the 632.8nm nonlinear interference filter made by this technique.
Abstract:In this paper near-UV photocathode of compound is briefly presented. Then,the experimental method on the near-UV photocathode of pure gold thin film with high stability is described in detail and the preparing technology and the results are givren. Finally,the advantage and potential applications are pointed out.
Abstract:The peer review has become a most effective method in selecting research topics,checking progress in research and assessing achievements in scientifie research. This paper briefly dircribes the scientist database for this purpose,and related problems for instance, Distribution of scientists,processing of the data,management ancf operation of the systems and so on.Finally, it suggests proposals about improving the system.