| 引用本文: | 王彦刚,彭东林,徐君,李岩.冗余技术在增量式时栅位移传感器信号处理电路中应用[J].电力自动化设备,2006,(3):82-84,101 |
| .Applications of redundancy technique in signal processing circuit for incremental time grating displacement sensor[J].Electric Power Automation Equipment,2006,(3):82-84,101 |
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| 摘要: |
| 在分析增量式时栅可靠性问题的基础上,介绍了冗余设计思想和冗余结构,给出了增量式时栅位移传感器信号处理电路的硬件冗余设计方案;增加动测头,并将其产生的信号采用并联方式进行增量式时栅防失步硬件冗余结构设计;在保证防失步可靠度的基础上,并联几个相同结构的防失步电路模块,可有效防止由于串扰引起的增步现象。对设计方案进行了仿真分析,并给出了增量式时栅可靠性设计的参考数据。结果显示,选取适当的动测头数,可在提高实时性的同时提高增量式时栅位移传感器的可靠性。 |
| 关键词: 冗余技术,时栅,增量传感器,可靠性 |
| DOI： |
| 分类号:TP212 |
| 基金项目:国家自然科学基金资助项目(50075091)~~ |
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| Applications of redundancy technique in signal processing circuit for incremental time grating displacement sensor |
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WANG Yan-gang PENG Dong-lin XU Jun LI Yan
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| Abstract: |
| The reliability of incremental time grating displacement sensor is analyzed,and the idea and configuration of redundancy are introduced. HW redundancy schemes are presented for its signal processing circuit. By adding moving probe unit and paralleling the signals produced,loss-of-step fault can be prevented. Configuring several circuit modules mentioned above in parallel can further prevent gain-of-step fault. The designed scheme is simulated and the reference data are provided for its reliability design. Results show that both the reliability and the real-time performance of incremental time grating displacement sensor can be improved with appropriate number of moving probe units. |
| Key words: redundancy technique,time grating,incremental sensor,reliability |
