Abstract:This paper presents the system configuration, operation principle and software design of the automatic verification system for the special-purpose aiming equipment. It analyses and evaluates the uncertainty of measurement also.

Abstract:The mathematical model of the valve controlled asymmetrical cylinder active electro-hydraulic servo loading system is set up and the control strategy of the compound adjustment is designed in this paper. The simulation and experimantal research are carried out.

Abstract:This paper introduces the re form content of calibration system of bounce-shock accelaration using laser-Doppler technology. The uncertainty of measurement of the reformed system is analyzed.

Abstract:Because the aerodynamic constructure of the aero air total temperature thermocouple is complicated, its calibration is always not yet decided. Owing to the thermo-electric property move and the matching character change of the thermocouple after being made, the matching calibration is necessary. In this paper, after emphasizing the above problems, the STT - 1A series total temperature thermocouple calibrator wining national patent and developed by myself is introduced.

Abstract:The interference source, the interference sorts and the interference rejection measure of the electronic potentiometer are introduced in this paper.

Abstract:In this paper, the computation method of each and every specification index of shock signal is presented. And how to apply digital signal processing method to the shock signal processing is introduced emphatically.

Abstract:4 系统结构和工作原理 900系列分布式数据采集系统由900系列数据采集模块、电源、通讯电缆、主机构成.可以在1.2 km的范围内,根据现场使用需要随意组成最少1个模块、20个测量点;最多不超过99个模块、1980个测量点(取决于模块)的测量系统.前端传感器输入信号可以是模拟信号(如温度、压力、电压、电流、应变等);也可以是数字信号(如开关状态监测、事件捕获、测频计数等).测量结果经模块内部A/D转换后,用RS485通讯方式,经屏蔽双绞线送至主计算机进行采集,并以固定的数据格式输出,用户可根据需要,采用相应的软件对采集到的信号进行处理.典型测量系统组成如图1所示.

Abstract:In this article, we introduced a new measuring standard which can be used successfully in laboratary inspecting all kinds of domestic and foreign levels and Theodoites. The design principle and measurement error of the instrument were also analyzed.

Abstract:The design and manufacture processes and control method of the high temperature tube calibration furnace are presented. The adjustment and calibration processes and experiment parameter have been given.

Abstract:The main problems met by present enterprises during propagating and implementing standard ISO 100012 and its treating method are presented briefly.

Abstract:This paper describes the principle, adjusting method and force value calibrating method of the MTS- 810(809) series electro-hydraulic servo fatigue testing machine load detector system, DC detector and span calibrating module made in MTS Corp. U. S. A

Abstract:Two key oscilloscope calibration functions test dynamic response (rise time) and bandwidth. They are also the most challenging. The goal is to faithfully transmit the calibration wave forms to the input of the oscilloscope under test. Over the years various transmission methods have been developed to overcome VSWR and other error sources. Some are more practical and cost effective than others. This paper summarizes a series of experiments that compare the traditional and more complex method of using pulse and leveling heads to simpler and more practical coaxial cables to perform these calibrations.