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一、概述数显测量系统的可靠性是使用数显装置的广大用户最为关心的问题。我国数显、数控技术的发展和推广应用几经反复,如1958年我国与日本同时起步的数控技术徘徊不前,70年代中期数显技术推广中的大起大落,其关键就是可靠性没有过关。直到80年代初,随着可靠性技术和中大规模器件的应用以及设计制造工艺的进步,国产数显表的平均无故障工作时间(简称MIBF,
First, an overview Digital measurement system reliability is the majority of users using the digital display device most concerned about the issue. The development and popularization and application of digital display and numerical control technology in our country have been repeated several times. For example, the numerical control technology that China and Japan launched simultaneously in 1958 was stagnant. In the middle of the seventies, the key technology promotion of digital display was ups and downs. The key point was that reliability did not cross the border. Until the early 80s, with the reliability technology and the application of large-scale devices and the progress of design and manufacturing process, the average number of working hours for the domestic digital form (MIBF,