Abstract:This paper introduces the development in studying the dynamic angle movement calibration technology and the progress of developing primary angular acceleration calibration standard which is traceable to the International System of Units.

Abstract:In this paper,the frequency dispersive curves of the Lamb waves propagating in plates are modeled using the 3-D elastic theory.In the experiments,according to the time delay and the angle of Lamb wave signals analysed by Gabor wavelet transform,the experimental dispersive curves are obtained.Compared the two dispersive curves,the 3-D elastic theory could be proved efficient.

Abstract:The ytterbium foil stress sensor is calibrated by using gas gun,the piezoresistance characteristics under dynamical load is studied,and the calibration fitting equation and linearity error are given in this paper.By experimental research,the sensor is testfied to have many merits such as wide measuring range,high frequency response,high linearity and low temperature coefficient.The sensor can be widely applied to the stress measurement in concrete or rock under shock load.

Abstract:This paper designs a kind of power detecting circuit of switch power supply used for audio power amplifier.It presents the principle and realization method of the circuit.Through test,it is proved that the circuit has the characteristics of dectecting accuratly and being with good dynamic performance.

Abstract:In the integrate test of aircraft system,the static capability of the line displacement sensor plays an important role on ensuring the accuracy and reliability of the test result.So we develop a sort of calibration equipment of the line displacement sensor.This paper depicts the software and hardware makeup and the work principle of the linear displacement transducer,and analyses the uncertainty of measurement.The practice has proved that the design of this equipment is scientific and reasonable,and it can ...

Abstract:The Swsy-S type of two-temperature humidity generator used for the humidity calibration lab is introduced in this paper.Its operation principle and design of hardware make up and software function are presented and the test result and analytical conclusion are given.The instrument is accurate,reliable and convenient for dew-pointmeter calibration.

Abstract:A design case of Multi-DOF displacement mechanism for aiding measurement and test is introduced.The characteristics of every DOF and different implementation schemes are discussed.

Abstract:A rapid and automatic accelerometer calibration system using comparative method is described in this paper.It is based on Labview.

Abstract:During the high accurate measurement,it needs to calibrate the value of the CCD pixel in order to fit the accuracy required.In this paper a simple and convenient method for calibrating the CCD pixel with standard line-scale is introduced.The line-scale is calibrated by laser interferometer.We can get the number of pixel corresponding to a length of standard line-scale.Then we can get the real distance corresponding to every pixel.The results of the experiments show that this method can restrain the composit...

Abstract:The way of high-order coefficient calibration for linear accelerometer is discussed,the effect factor of the high-order coefficient calibration for linear accelerometer is classed and analyzed,and the arithmetic of linear accelerometer's data is simulated simply.It lays a good groundwork for further research on the high-order coefficient calibration for linear accelerometer.

Abstract:简要介绍了一种新的量值传递方式--计量保证方案,详细叙述了如何在机加车间简化运用计量保证方案来提高测量质量.

Abstract:In this article,we explaine the working principle of the micropressure calibration device and analyze the analysis of the uncertainty of measurement for the miropressure calibration device when it is in gauge mode.

Abstract:The 3-D rebuilding method and its application to aircraft wing are researched in this paper,and an aircraft wing rebuilding system is implemented,which is based on the open graphics library and visual c++ 6.0 platform.In the aircraft wing rebuilding system,the aircraft wing model is driven by the FBG sensor network data.Therefore,the rebuilded aircraft wing model will be changed like a real one,while the FBG sensor data are changed.And this system has been applied to the aircraft wing health real-time monit...

Abstract:Taking into consideration of current status in national defense metrology management,national defense metrology information management system design method along with its implementary instruments are proposed,based on the aspects of systematic structures,constituents,network constitution etc,and the thesis further elaborated realization method.

Abstract:The periodic check is an important means to ensure that the performance of metrology standard equipment is reliable in calibration laboratory.The periodically checking the standard equipment is an indispensable work in the management of laboratory.Inthis paper,several methods used to periodically check the metrology standard equipment in laboratory has been presented and also verified is the light of specific examples.

Abstract:The concepts of metrology guarantee and the work basis are introduced in this paper.It also introduces the effects of the model metrology guarantee from the quality management,the demand for the model research stage,economy and the decision-making.

Abstract:The paper puts forward a cone theory based on the analytical geometry of the three dimensions and solid geometry with the optical pointing in the plumb bob direction and from that gives a handy indoor calibration method of the medium-sized plumb aligner.