Abstract:In this paper,a method about statistic evaluation of the linearity of the edge of triangle waveform signal is introduced.Under the uniform distribution condition and using vaveform measurement method and histogram statistic analysis method,the amplitude distribution histogram and the edge linearity of the triangle waveform signal are evaluated.The evaluation course and some relative technical problems are discussed in detail.The error analysis of relative parameters is done.The test result proved the effectiveness and practicability of this method.This method could be applied to the performance evaluation of the triangle waveform signal generator.

Abstract:Based on the theoretic analysis of piezoelectric actuator power supply and the adjusting principle of the cavity length of ring laser gyro,a 0~300 V continuous adjustable and computer controlled power supply system driven by piezoelectric crystal has been designed and it has been applied to ring laser gyro automatic mode\|sweep system designed by authors.The mode\|sweep curve obtained by experiment shows that this power supply system can meet the requirement of automatic mode\|sweep system of ring laser gyro.

Abstract:The connection of relative instruments,calibrating method and software design etc,using the newly developed comprehensive calibrating system of the universal instrument,during realizing automatic calibration of time interval of frequency meter,are described in this paper.A indirect method of measuring one\|line time interval has been proposed.

Abstract:This paper presents a project of a combined test and control system in the STL of the ship\|borne missile based on VXI bus.First, it introduces the basic structure,composition and function of the system.Second,it designs the internal environment monitored control of the STL.It also designs a test system,a setting firing data system,a launching control system as well as a emergency measures system for the missiles in the STL.

Abstract:The composition,operation principle,analysis of uncertainty and the problem of calibration and traceability system of the value of a quantity of 400 Hz current transformer are presented.This system can calibrate 400 Hz current transformer with class 0.02 and the below.

Abstract:The detecting method of electric and electromagnetic signals during EDM and their respective characters are described in this paper.According to the different machining requirements,the different machining methods are selected within practical application,and thus the optimum control of EDM is realized and the best machining effect is obtained.

Abstract:Several verifying methods of whole verification of DC resistance instruments are introduced in this paper.The operating principle and verifying method of the whole verifying DC resistance instruments with high accuracy by using DMM are analized emphatically and the calculation of the uncertainty is done.

Abstract:The application of the HP VXI Bus data acquisition system to the solid rocket engine test rig,including the data acquisition and processing programs and the adjustment of the basic performance of VXI device,is introduced emphatically.The idea and relative problem of sofware design are discussed.Through the test comparision with the primary data acquisition system,it is shown that this system meets the technical requirement of the dynamic test and the performance is exellent.

Abstract:A kind of equipment which can not only realize the dynamic test but also the static test of accelerometer by centrifuge is described.The method which resolves the disturbance problem effecting on the performance of the whole system is presented in detail.

Abstract:The principle and method of the metrology and measurement of microwave field density are described in this paper.The resarch situation and analysis of the uncertainty of measurement of using VB6.0 language programing under the Chinese environment are mainly introduced.