Abstract:This paper introduces the principle and types of fiber-optic gyroscope(FOG),compared fiber-optic gyroscope with other gyroscopes,and summarized the merits of fiber-optic gyroscope.Finally,the purpose of fiber-optic gyroscope in the weaponry is summarized,and the application prospect of fiber-optic gyroscope is forecasted.

Abstract:When measuring the temperature of the object,if the temperature of the measured object is near the environment temperature,then the environment factor has greater influence on the measuring result.In order to enhauee the accuracy of measurement,accoding to the Plank law and through value calculation,the value of the ratio of the environment temperature influence under different temperature of the object,the environment temperature and the radiation wave length and the relation among them have been obtained.Base on the above,and if the influence of the environment radiation can be ignored,the lowest temperature of the measured object is acquired.The enoironment radiation influence on the colorimetric temperature measurement is discussed at last.

Abstract:In this paper the topological structure of multi-body system and their low-order body arrays,and basic concepts of characteristic matrixes and their composing methods are presented,basic rules of having-error kinematics of multi-body system are analyzed,891E gear measurement center taken as an example,volumetric geometirc errors of gear measurement center based on characteristic matrixes are researched,it provides a kind of ideal method of model building for the precision analysis and geometric errors of gear measurement center.

Abstract:This paper introduces a calculation method of the shock response spectrum in SRS absolute calibration research.The reliazation of this method is based on the MATLAB programming language,i.e.through the simulation in the MATLAB and soluting the numeral solution of a unidirection second order differential equation directly,so that the absolute repeatability the absolute repeatability of the shock response spectrum is obtained.

Abstract:Data collector is an important flight-test instrument;its character will greatly affect the flight test of modern aircraft.To fill the requirement of finalizing the design of the modern aircraft,a large number of FPGA and DSP components have been used in the design of new generation data collector,which will greatly increase the sampling rate,channel number and parameter type,and improve the flexibility of usage.This paper describes the design technique of analog quantity acquisition card in the new generation collector and gives the theoretical support of its design.The digital signal processing technique is used to magnify the signal,filter and correct the offset.

Abstract:The principles of the producing and testing of the ring laser gyroscope are presented briefly in this paper.Through analyzing the test system of the dead zone, the dead zone test plan based on the virtual instrument technology is given.Going through the practical test,the new dead zone system can realize the autotest.The test time can be shortened from over 10 minutes to only 20 seconds.The uncertainty of the test result is less than 10 Hz.

Abstract:加速度计动态校准装置的研究是在加速度计静态校准的基础上提出的.针对加速度计动态校准领域中在大加速度、低频范围内的校准,本文论述了加速度计动态校准发展现状,主要从校准装置的原理、组成和不确定度分析等几方面进行了研究,最后对该校准装置的下一步研究领域进行了展望.

Abstract:Pointing to the deficiency of the in-situ test measurement of the thermal infrared imager,a set of portable test device of the thermal infrared imager with MRTD has been designed.First,test the MRTD of the thermal infrared imager in-situ.And then,calculate the apparent temperature difference of the target through the model of the atmosphere trasmissivity.At last,through the Johnson criterion,analyze,calculate and obtain the ability of detecting and recognizing the target by the thermal infrared imager.The experiment result shows that the method is exactly feasible and may be used to test the findable distance of all rinds of the thermal infrared imager.

Abstract:A concept of directional response of gamma-ray logging probe and its verifying method are introduced in this paper.The causes of the directional response and their contributions to uncertainty of the results of measurement were analyzed.

Abstract:This paper firstly gives a general introduction of the present stitus and problems of the thread verification.Furthermore,this paper discusses several issues of thread verification needed to be studied and analyses the relation between the single and sythetical parameters measurement of the thread and the techology of the dissemmination of the value of a quantity.In the following,this paper focuses on a detailed description of the measurement principles and the measurement methods and the problems in measurement about effective diameter of internal thread measurement.

Abstract:This paper introduces the verification method of ASL3000 IC test system.According to the characteristic of the test system,we use self owned instrument and verification programs to verify liner signal module,digital signal module,mix signal module,RF signal module and base band signal module.For verification of self owned instrument,we can trace to the source of nation standard via periodic verification.

Abstract:Purity is a very important technique standard of the liquid nitrogen,and analysis of purity is carried out by the measurement to the oxygen content within the liquid nitrogen.In the last years,by many experimental database in the process of trace analysis with liquid nitrogen,it is discovered that the measurement of oxygen content is lower.By the theories of precision and a great deal of experimental data,we find out the reason of the deviation,and give the scientific correction.

Abstract:Based on the principle of the pressure sensor and digital display instrument,this paper briefly introduces the calibration instrument and calibration method of gas pressure and gas flow pressure in the igniter of a engine.The evaluation of the uncertainty of measurement has been given.

Abstract:The given definite function formula there will obtain certainty result only derived from variations,and relation transmit(sensitive) coefficient between the result and variation is also regarded as the ratio betwwen the standard deviation of result and the standard deviation of variations.But it is no relational that the variations were from surveying or by given.According to this basic principle and letting the variations change randomly,we have triumphantly calculated that uncertainty of measurement for result about distant inherent error;proportion error factor and distant's standard deviation of Hand-held Laser Distant Meter in this paper,and let it be not difficulty to calculate that uncertainty of measurement for result and sensitive factor estimated from complicated mathematical mode contained so much import variations.

Abstract:The design method of the network station of the management system of metrology and measurement has been presented by using the interior object provided by ASP and VBS cript language.

Abstract:In this paper the basic concept and developing history of metrological assurance are introduced,the problems existed are analyzed,and the suggestions to solve those problems are offered as well.