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Issue 2 ， 1989
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Study of the Aiuminofluorophosphate Glass Systems
Abstract：The glass formation regions of the seven Aluminofluoropho sphate ternary systems [R1(PO3)2-AlF3-R2F2 (R1 : Mg、Sr; R2: Zn、Cd、Pb)and Mg(H2PO4)2-AlF3-ZnF2 etc,]have been studied. FT-IR, Raman, XRD, DTA and ESCA techniques are used to investigate the fundamental properties, structure and crystalli-sation mechanism of Mg(PO3)2-AlF3-PbF2 systems. A new for-mula used to calculate the activation energy and the Avrami exponent is derived.- 47
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Published：2020-08-12 -
The Structure and Properties of Nioboborate Glass Melts
Abstract：Based on the experimental results of high temperature IR spectra, high temperature Raman spectra, high temperature micropolariscope, RDF (r) and DSC-7 differential thermal analysis etc., the structure and properties of glass melts in the Nb2O5-B2O3-K2O system have been investigated. By comparing the structure of high temperature glass melts and the structure of glass in room temperature of Nioboborate and Borate, we found out that the BⅢ-O-BⅣ bond of borate glass isalarge σ bond(poor of electron) and is very unsteady. When intr-oducing Nb2O5 into borate glass, the BⅣ-O-Nb bond is produced in glass as the Nb2O5 content increases. Because the quantity of circuit structure increases gradually, so the glass stabitity and mechanic properties of glass are improved. Further more, the relationship between crystallo-velocity and the temperature, glass melts structure etc.- 35
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Published：2020-08-12 -
Crystal Growth and Spectra of Rare Earth Doped Perovskite Fluorides
Abstract：Single Crystals of KMgF3: Eu2+ and LiBaF3 have been grown by Bridgman-Stockbarger technique. Polycrystalline samples of LiBaF3: Re (Re = Ce3+, TV3+, Eu2+) have been prepared by zone melting method. X-ray analysis on the grown LiBaF3 shows that polycrystalline samples have been yielded from the ratio BaF2:LiF= 40:60 (mol%) which is taken from the phase diagram. Spectroscopic investigation of the grown crystals has been done. N2 laser pumped luminescence of KMgF3: Eu2+ displays many center structure.- 53
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Published：2020-08-12 -
Experimental Study on Infrared D2 Raman laser
Abstract：TEM00 mode of a high power TEA CO2 laser was used to pump D2 which was cooled to 100K in MPC. By using the principle of SRRS, we have obtained Raman laser output that can be tuned in 11～14μm. About 7.93MW of 12.5μm Raman laser could be obtained when a typical 30MW 10R (20) line of TEA CO2 laser was used.- 39
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Published：2020-08-12 -
Frequency Doubling Experiment of BBO Crystal in Ultrashort Dye Laser Pulse
Abstract：This paper describes several problems about laser frequency doubling. Using a BBO crystal (5.5×6×7mm3), we completed ultrashort dye laser pulse's frequency doubling experiment. In order to improve power conversion efficiency, we used cylindr-ical lens and spherical lenses to focus dye laser pulse. Within the range 290.0-300.0nm, maximum power conversion efficiency η≥0.5% was obtained, where pump averige power was 120mW and second harmonic power 0.54mW.- 50
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Published：2020-08-12 -
The Intracavity SHG in the CW Tunable Single Frequency Ring Dye Laser with β-BaB2O4 Crystal
Abstract：The intracavity frequency-doubling in the CW tunable ring dye laser with β-BaB2O4 crystal to produce coherent tunable single frequency UV radiation is reported in this paper. Under 3W Ar laser (all spectral lines) pumping, the nonlinear conver-sion efficiency is 8.33×10-4 W-1 at 292nm. The tuning range of the continuous tunable UV output is about 288～302nm by chang-ing the phase matching angle. The angular sensitivity of the β-BaB2O4 crystal is about 27cm-1/mrad.- 39
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Published：2020-08-12 -
Grazing Incidence Interferometer Using Holographic Gratings As Beam-Splitters
Abstract：In this paper a grazing interferometry for measuring the flatness of non-optical surfaces is described. Many different surfaces have been examined, ranging from groundglass and photographic emulsions to metals such as steel, brass and aluminium, etc. The sensitivity of the measurement is such that one interference fringe represens a change of one half of the grating periodicity in height on the surface under examination. The visibility of interferogram can be improved by a suitable choice of gratings of different diffraction efficiency, or the grating orders.The interferometer is relatively easy to set-up and stable once aligned.- 35
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Published：2020-08-12 -
Calculation of Veiling Glare Due to Reflections Between Surfaces——Ghost Image Simulation and Analysis
Abstract：Veiling glare is one of the important factors causing deterio-ration of image quality in optical systems. A new method, using the paraxial approximation and the finited ray tracing, is proposed in calculating veling glare due to reflections from com-ponent surfaces. The function and structure of the software for the ghost image simulation and analysis are outlined. A real optical system was analysed as an example.- 28
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Published：2020-08-12 -
Theoretical Calculation of Diffraction Efficiency of Gratings and Its Experimental Test
Abstract：In this paper, we give a set of integral equations which can be used to calculate diffraction efficiency of grating.of any kind. By solving these equations, we give some efficiency curves of gratings: of three kinds infrared, visible and grazing incidence gratings.Also, we analyze the influence of apex angle of grating figure and the choice of diffraction plan angle of grazing incidence gratings. At the end of this paper, some of the experimental data are presented.- 54
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Published：2020-08-12 -
Using Laser Speckle to Measure Modulation Transfer Function (MTF) of CCD
Abstract：This paper analyses the concept of OTF in sampled imaging system, discusses the problem incoherently coupled with OTF of lens and describes a new method for measuring MTF of CCD. The main idea of this method is to use laser speckle to produce an input light intensity distribution whose power spectrum has been known in receiving plane of CCD, conduct A/D conversion to the output signal of CCD and then do FFT. to obstain output spectrum. This method can directly test devices without optical or mechanical components of high quality, precision alignment and CCD output amplifier. It is very easy, but useful in the automatic fast test of CCD performance. The MTF of Toshiba TCD102C-1 model CCD has been measured.- 50
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Published：2020-08-12 -
Measurement of Surface Profile with Optical Heterodyne Method
Abstract：This paper describes a new method, Doppler heterodyne measurement method of surface profile, using a simultaneous phase comparator. The measurement is controled by microcomputer. This paper also discusses the evaluation of the phase character of detector array.- 31
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Application of the Fast Hough Transform in Real-Time Object Recognition System
Abstract：Hough transform is powerful for detecting straight, line in noisy image or degeneration image, Fast Hough transform(FHT) adopts a hierarchical technique and a k-tree data structure. It leads to a reduction in both computation and storage. In this paper, a technique applied FHT to real-time object recognition system. We now accomplished the computer simulation for the real-time object recognition system is described. The system can output the position of the object in an complicated background. Due to the HT, the system is very effective in recognizing object in an image with noise, gaps and complicated background. After determining a mask, the object recognition in this system is not affected by the background variation, and it has the feature of object rotation invariant.- 36
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Published：2020-08-12 -
Study on Computer Control Programme System of DDJ-160 Model Electro-graving Machine
Abstract：This paper presents a control mechanism and computer control system of the DDJ-160 model all autoelectron engraving machine and analyses its characteristics and functions of the program control system.- 27
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Published：2020-08-12 -
Near Infrared Diffuse Reflectance Analysis Technology and Experimental Device
Abstract：We simply, illustrate the principle of near infrared diffuse reflectance analysis technology in this paper. An experimental device has been developed and some discussion is given.- 58
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Published：2020-08-12 -
Experimental Researches on Near-Infrared Reflectance Spectroscopy to Analysis of Protein Content in Wheat and Soybean
Abstract：Near-Infrared Reflectance (NIR) spectroscopic analysis is a new technique. This paper describes the principles of NIR spectroscopy and the technique of NIR spectroscopic analysis, discusses some major variables affecting NIR spectroscopic analysis, and first applies the finite-difference trans form that simulates deri-vatives to measurement of protein content in wheat and soybean using the Infra Alyzer 450 with 19 fixed filters. The experime-ntal results are satisfactory.- 39
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Published：2020-08-12 -
Emission Spectrum Analysis of the Proportion of Zn and Se in the Thin Film of ZnSe by Means of Movable Electrode
Abstract：In our experiments standard sample was made by filter paper absorbing the standard solution the proportion of Zn and Se in the thin film of ZnSe was measured by means of emission spectrum analysis The conditions of determination were discussed. The relative standard deviation of this method was 7.5%.- 31
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Published：2020-08-12 -
Mechanism Analysis and Dynamic Experiment Research of KUKA IR 662/100 Robot
Abstract：This paper analyses the transmission mechanism, balance mechanism and work space of KUKA IR 662/100 Robot in a syst-ematic way. The author gives an analytic solution for kinematic positive and converse problem of the six-freedoms rotary robot in fast coordinate transformation with middle coordinate system, founds the dynamics model of the front three joints using Lagrange equation, suggests a method of the parameter identification of the dynamics model and gives the fast algorithm of the robot converse dynamics problem expressing with coefficient parameter. In the last, the author demonstrates the dynamics characteristic of this robot in experiment.- 57
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Published：2020-08-12 -
A System for Monitoring Stability of Six-legged Walking Robot
Abstract：This paper synthesizes methods for monitoring the static stability of six-legged walking robot on all sorts of terrain and discusses the energy stability method in detail. The author mentions the use of this method to analyse the cross-country ability of the walking vehicle, the selection and stability of gait when it makes a turn, and a CAD of overall structure sizes of the walking robot. In the last, the author discusses the design of a monitoring system of stability for six-legged walking robot on all sorts of terrain.- 49
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Published：2020-08-12 -
The Theory Analyse and Experiment Research for A New Kind of High Frequest Hydraulic Reciprocating Sew
Abstract：A hydraulic reciprocating saw used for ocean engineering has been developed by our research institute. It employs a kind of special mechanical feedback device,relizes high frequent reciprocating movement of the hydraulic piston which controled by doubl spool hydraulic reversing slide valve. In this paper, the author analyses the design, static and dynamic, performances of the system, and deseribes. The result of computer emulation and experiment verifying the correctness of the theory.- 39
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Published：2020-08-12 -
Research on the Dynamics and Kinematics of Six-legged Walking Machine
Abstract：This paper analyses the force distribution of six-legged walking machine, Then making use of the results, We analyse the force imposed on the legs. The paper sets up the dynamic equations of the walking machine. And we solve the equations under all kinds of walking way. Making use of two criteria, the paper acquires the optimal stroke of walking machine. The paper also presents researchs on the optimal distribution of energy of walking machine in all kinds of gaits. Considering velocity influence on the sta-bility, this paper discusses the stability of walking machine, when legged locomotion walking and turning.- 59
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Published：2020-08-12 -
The Development of High Toughness and High Wear Resistant Tool Steels
Abstract：In this paper, the auther extends the theory of equilibrium carbon. According to this theory, eleven kinds of new alloy steels are designed for improving Cr12MoV steel by adjusting car-bon and alloy element content in Cr12MoV steel and adding approp-eriate rare-earth element.By the synthetic study of smelting, heat treatment and mechanical inspection, the optimum content of alloy element is found out. The experimental results show that, the new tool steels in acord with equilibrium carbon theory have fine eutectic carbides. Compared with Cr12MoV steel, the new tool steels have no obvious variation of the hardness, but the toughness and ware resistant are improved remarkably. By adding approperate rare-earth element to the tool steels, good metallurgical quality can be obtained and mechanical property can be improved.- 44
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Published：2020-08-12 -
Research in Dynamic Transmission Capacity of the High Speed Space Rocket Gears with a Solid Lubricant Film
Abstract：This thesis is on the dynamic mechanics study of the high speed gear system for launching rocket, This gear system. consists of three gears using a solid lubricant film. It sets up the dynamic mechanics model and mathematical quations. It gives the theoretic study method on the dynamic speciality of running gear. It presents the theoretic formula of calculatting the dynamic response. 1癉isplacement response. 2癕esh stiffness response of tooth pairs. 3癝peed response. 4癉ynamic load response. 5癊lastic contact size response of tooth pairs. 6癈orrect dynamic load response. 7癟ooth surface temprature response. These research work are made by computer. It may be a guide to experimental research.- 41
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Published：2020-08-12
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