发明名称 |
Digital optical micrometer |
摘要 |
A digital optical micrometer for mounting on an optical instrument and having an optical flat plano-parallel window which is connected to a micrometer drum. The drum can pivot or incline the optical plano-parallel window to cause displacement of a line of sight. The digital optical micrometer further has an LCD read-out that indicates the amount of displacement of the line of sight, a circuit that is connected to the optical plano-parallel window and provides an electrical signal having a signal property which varies in proportion to the inclination of the line of sight, and an analog-to-digital converter that is connected to the circuit and converts the electrical signal to a digital word having a binary value representative of the inclination of the line of sight. The optical micrometer further has a computer which has a clock input that provides for an automatic power down of the micrometer. The micrometer includes a linkage arrangement rotating the optical flat window which minimizes the error effect of gear backlash.
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申请公布号 |
US5414646(A) |
申请公布日期 |
1995.05.09 |
申请号 |
US19920869371 |
申请日期 |
1992.04.16 |
申请人 |
BRUNSON INSTRUMENT COMPANY |
发明人 |
SANDERS, DAVID L.;ROLBIECKI, TIMOTHY J. |
分类号 |
G01B9/06;G01B11/02;(IPC1-7):G01N21/00 |
主分类号 |
G01B9/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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