发明授权
US3842509A Strain gauge ambiguity sensor for segmented mirror active optical system
失效
用于分光镜活性光学系统的应变量规传感器
- 专利标题： Strain gauge ambiguity sensor for segmented mirror active optical system
- 专利标题（中）： 用于分光镜活性光学系统的应变量规传感器
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申请号： US32879273申请日： 1973-02-01
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公开(公告)号： US3842509A公开(公告)日： 1974-10-22
- 发明人: WYMAN C , HOWE T
- 申请人： NASA
- 专利权人： Nasa
- 当前专利权人： Nasa
- 优先权： US32879273 1973-02-01
- 主分类号： G01M11/00
- IPC分类号： G01M11/00 ; G02B23/00 ; G01B7/18 ; G01B7/31
摘要：
A system to measure alignment between interfacing edges of a plurality of mirror segments positioned to form a segmented mirror surface, comprising strain gauge means having a bending beam with four piezoresistive elements coupled across the interfaces of the edges of adjacent mirror segments. The bending beam has a first position corresponding to alignment of the edges of adjacent mirror segments, and it is bendable from the first position in a direction and to a degree dependent upon the relative misalignment between the edges of adjacent mirror segments to correspondingly vary the resistance of the strain gauge means. A source of power and an amplifier are connected in circuit with the strain gauge means whereby the output of the amplifier varies according to the misalignment of the edges of adjacent mirror segments.
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