Abstract:Based on the previous experiment data and present investigation in dynamic strain measurement by applying FBG sensors, the application of FBG sensors to the micrometrology fields is presented in this paper. The dual measurement of strain and temperature is reviewed as an example to separate and eliminate the thermal disturbance. Dynamic strain caused Bragg wavelength shift demodulation device is summarized and the method to realize the very high demodulation resolution of Bragg wavelength shift is given.

Abstract:The paper introduces the conception of UAV and the present status of shipborne UAV. It mainly discusses how to use the guidance of machine vision, during the last phase of auto-landing of UAV on deck, to make the UAV identify and track the naval ship, and finally fly into the intercept net fixed on the rear deck of naval ship placidly and accurately.

Abstract:The technique of quasi-synchronous window and its application in signal distortion measurement are introduced in this paper. In the signal distortion measurement based on DFT, the technique can effectively minimize the spectrum leakage caused by the non-integer-period sampling. It is proved by the experiment that accuracy of distortion measurement can be improved by this means.

Abstract:In this paper, a virtual instrument for measuring the gas micro-flow is developed by the LabVIEW software. The hardware configuration and software design methods are described. The test software is developed by LabVIEW 6.1. The uncertainty of the gas flowmeter is analyzed in detail. The virtual instrument system possesses high precise, friendly interface, high reliability and strong expandability.

Abstract:Aimed to its difficulty, a useful method of vacuum-kiln's temperature field measurement is provided. Also, the relevant standard is analyzed and evaluated.

Abstract:The construction, adjusting principle and method of the adjustable operating platform for the instrument are presented in this paper. Taking the adjustment of the verticality between the measured axle and the platform surface with three-point bearing construction and conical surface bearing construction as an example, the adjusting method and procedure are described.

Abstract:In this paper, three evaluation methods about the on-off ratio of pulse waves are introduced, they are the direct pulse width measurement method, the amplitude statistical method, and the average measurement method. The error sources are discussed, including the amplitude measuring error, the effect of the range of the mode of the density distribution method, and some others. The evaluation course of the uncertainty is presented. Combining with a group of experimental results, both the on-off ratio of pulse waves and its uncertainty are given out.

Abstract:详细地叙述了利用XF1b型交、直流精密电表校验装置采用直流补偿法检定低量值直流电流表示值误差时所存在的问题，并提出一种改进线路。同时，按照JJF1059—1999《测量不确定度评定与表示》规范的要求对上述方法中所阐述的低量值直流电流表示值误差测量结果的不确定度进行了评定。

Abstract:In this paper, we introduce the design and application of Heilongjiang Metrology Manangement Information Systems in National Defence Military Industry.

Abstract:Pointing to the existing problem in the traditional underwater transducer test, an auto-measuring underwater transducer with virtul instument and through computer control plan is proposed. This plan increases the accuracy of the underwater transducer test and the efficiency is increased of the same time. And the test members will be free from the miscellaneous estimation and record.

Abstract:A practical management system for electronic components storehouse is presented. The functional modules and their features are described in detail.

Abstract:Calibration specification is the base for carrying out the calibration. Drafting the calibration specification of special measuring equipment is a very important object, it is the basic requirement for metrological assurance. In this paper, construction of drafting group, working process of drafting, items and methods of calibration selection of standard measuring equipment and calibration interval are described.