QQ客服 官方微博 反馈留言

浏览/检索结果: 共2条，第1-2条 帮助 限定条件 发表日期：2005     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 The replacement of dry heat in generic reliability assurance requirements for passive optical components (EI CONFERENCE) 会议论文 ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China Ren X.; Qian L.; Zhang G. 收藏  |  浏览/下载：12/0  |  提交时间：2013/03/25 According to Generic Reliability Assurance Requirements for Passive Optical Components GR-1221-CORE (Issue 2  January 1999)  reliability determination test of different kinds of passive optical components which using in uncontrolled environments is taken. The test condition of High Temperature Storage Test (Dry Test) and Damp Test is in below sheet. Except for humidity condition  all is same. In order to save test time and cost  after a sires of contrast tests  the replacement of Dry Heat is discussed. Controlling the Failure mechanism of dry heat and damp heat of passive optical components  the contrast test of dry heat and damp heat for passive optical components (include DWDM  CWDM  Coupler  Isolator  mini Isolator) is taken. The test result of isolator is listed. Telcordia test not only test the reliability of the passive optical components  but also test the patience of the experimenter. The cost of Telcordia test in money  manpower and material resources  especially in time is heavy burden for the company. After a series of tests  we can find that Damp heat could factually test the reliability of passive optical components  and equipment manufacturer in accord with component manufacture could omit the dry heat test if damp heat test is taken first and passed.   Experimental study of the propagation characteristics of rub-impact faults on a flexible rotor-bearing system 期刊论文 Mocaxue Xuebao/Tribology, 2005, 卷号: 25, 期号: 1, 页码: 67-72 作者:  Zhao, Rong-Zhen;  Zhang, You-Yun;  Lai, Jia-Shun 收藏  |  浏览/下载：19/0  |  提交时间：2020/11/14 Dynamic response  Failure analysis  Fast Fourier transforms  Feature extraction  Impact testing  Test facilities  Vibrations (mechanical)  Center orbits  FFT spectrum  Flexible rotor bearing system  Propagation characteristics  Rub impact