There are scrapers at both sides of driving beam for scraping sundries amassed on rail surface all the while.
驱动架两端表面分别装有刮削板,随时刮扫积聚在导轨表面的杂物。
The low-voltage driving circuit is adopted to drive a piezoelectric ceramic phase shifter to shift the phase of the reference beam, so as to make the instrument lighter, smaller and cheaper.
采用低压驱动电路驱动压电陶瓷相移器对参考光束进行相移,从而使仪器质量减轻、体积缩小、成本降低。
Intermediate driving way is put forward for the first time and can solve influence of deflection and edge effect come from rail beam on mechanical and electric performance.
首次提出中间驱动方式,能较好地解决轨道梁产生的挠度、边缘效应等对机械和电气性能的影响。
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