Wet sponge pinhole leak detectors are used to find defects on metal surfaces of protective coatings and have found wide application in the fields of automotive industry,logistics transportation,aerospace,etc.This paper summarizes the characteristics and usage conditions of wet sponge pinhole leak detectors,and proposes a methodology of their calibration in response to the lack of specialized regulation and specification for such instruments in China.The key points and difficulties in the calibration process are analyzed,and a standard calibration device is designed to cope with all-parameter measured value traceability and to ensure accuracy and reliability.The paper contains useful information for the formulation of official specifications.
关键词
检漏仪/量值溯源/标准装置
Key words
leak detector/measured value traceability/standard device
维普
万方数据