提出一种采用多探测光路的角位移量程扩展方案, 可以在不降低分辨力的条件下, 将量程扩展多倍, 使传感器同时具有高分辨力、大量程的优点。结果表明, 量程扩展到360\" , 两光路的分辨力分别为0. 004\"和0. 005\"。关键词: 角位移传感器; 临界反射; 量程扩展Abstract:A scheme fo r extending measurement range of the angular disp lacement senso r is p resented. The measurement range of the senso r can be extended w ithout reducing measurement reso lut ion by us2 ing mult i2receiving op t ical units, and the senso rmeet some p ract ical app licat ionsw ith h igh measurement reso lut ion and large measurement range. The results show that itsmeasurement range is 360\" and reso2 lut ion are 0. 004\" and 0. 005\" respect ively.Key words:A ngle senso r; Crit ical reflect ion; M easurement range
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