Abstract:非接触式光纤外差干涉位移传感器是将半导体激光器线性调频技术和光纤传感技术相结合制成的1种新型外差干涉仪。它的位移测量范围可达26mm，分辨率为0．02μm；对不同材料、不同粗糙度的对象面，有着几乎相同的测量灵敏度和测量精度；探头和对象面无需严格垂直。

Abstract:This paper researches the surface temperature measuring methodfor special vertical-plate heat-transfer element together with the special vertical-plate down film evaporator. From all measuring temperature system, thechoice of measuring temperature element, and the methods of the thermocoupleweld and its arrangement are introduced. The new method for symmetric thermocouple arrangement is given when the averaging temperature of the specialvertical plate with non-equal temperature field. It can accurately measure thesurface temperature and is very important for heat-transfer theory about thevertical-plate down film evaporator to research.

Abstract:The newest development of the nano-meter technology is introducedand the suggestion of the developing our nano-meter technology is made together with metrology and measurement technology.

Abstract:The spindle head vibration of domestic machille tool in EDMis measured, and it is compared with that of the imported precision one andvaried vibration waveform is obtained.

Abstract:The shock tester pendulum weightometer is more complex for thelever system in its structure.This paper introduces its four angle adjustmenterror principle by the translation and equilibrium of lever system force.

Abstract:This Paper introduces a two-directive opto-electric coupling circuitfor data bus and resolves the interference for computer in the high speed dataacquisition system.

Abstract:The error analysis and calculation illustrate that the resultantimage level instrument with 0.01 can not meet the needs for the accuracyrequirement of O class PI:ane planness verification and the autocollimationinstrument with 0. 005 or electronic level instrument can have the satisfactoryverification accuracy and then correctly choosing verification tools are veryimportant for its verification quality guarantee.

Abstract:By the review in more than 180 technical reports of buildingmetrological standard, the error resource of measuring standard instrument,the conformation of uncertainty of measurement, reliability checking and givencalibration values are summarized. The brief analysis correctly indicates thesuggestions of the reports.