Abstract:This paper introduces the method of absolutely reproduce the value of shock acceleration of great displacement and long duration by polarization interferometry system, illustrates the constitute and principle

Abstract:A dynamic error analysis of the Z axis of a bridge-type 3-D coordinate measuring machine is made theoretically and experimentally. A kinetic analysis of the Z axis is made. The main dynamic errors of the Z axis are measured with a laser interferometer and the factors affecting measuring machine is given and with this we can realize the high accuracy of a bridge type 3-D coordinate measuring machine for fast probing.

Abstract:The digital tachometer circuit, its principle is different from the pulse counter-type instrument, is described in this paper. In the circuit, input pulse is converted into DC voltage proportional to the input pulse by FVC. The test result is displayed by DVM. In the paper, the principle of FVC is discussed in detail, the over-all unit circuit is analized and the test result is given at last.

Abstract:This paper introduces the methods and contents of the measurement & calibration of 1553B Bus Analyzer. It includes electrical calibration, protocol calibration and noise rejection calibration. It also analyses the critical techniques in the process of implementation.

Abstract:This operating desk may control/detect comprehensive parameters of 64 channels/ situations, such as, temperature, pressure, humidity, material level, flow, et al. It has two functions:(1) Automatically patrol control/detect the parameters of 64 situations. (2) It can freely take priority to control/detect the parameters for anywhere.

Abstract:A method of calculating air absolute humidity by measuring its relative humidity and temperature is presented, and the calculating equation is deduced in this paper.

Abstract:Using the uncertainty theory, the angle rate uncertainty of rate table is evaluated.

Abstract:Taking Talyrond73 roundness tester as a example, the basic principle of intellectualization reform of roundness tester, main functions of roundness measuring software and optimization ofroundness error evaluation methods are presented in this paper. Some measures ensuring accuracy isdiscussed. The verification result is also given.

Abstract:In this paper we briefly review the development of digital oscilloscope (DSO) and CRO calibrator, and analize the typical design and transmission mechanism of 100ps pulse switch circuitry of model 9500 calibrator. At the end of the paper, we introduce a generation of full automatic calibration system configuration of software and hardware.

Abstract:The error test method of the existing 3D coordinate measuring machine is analized and the symmetrically associated combination calibration method is put forward in this paper. The measuring principle and a new brief mathamatic model of this method are described in detail. Through experimental comparison, the correctness and practical applicability are tested and verified.

Abstract:The establishment of calibration project of integrated circuit auto-test system, Type selection of dissemination and traceability and trail effect of deciding the traceability problem of IC testing device through MAP scheme are presented briefly.

Abstract:Some urgent problems about metrological garantee within the intelligence measuring system are searched systematically. They are formulating (selection, evaluation, verification and report) metrological characteristic, the automatic on line evaluation of the uncertainty of the final measurement result (known as the metrology auto-support of the measurement result -MAS), the calibration, measurement and test of the MAS measure, and the concrete realizing method of the environment of the integrated measuring software. In this paper, the practical definition of the intelligence measuring system is pointed also, and its general function module configuration is given.