| 摘要 |
An angle-position transducer using light-interrogation employs an optical track and a beam of light. The light beam is formed into a narrow line-pattern. The line-pattern is directed to impinge on the optical track as the optical track moves angularly relative to the line-pattern. The optical track and line-pattern interact in a way that alters the line-pattern unambiguously. A target detector intercepts the altered radiation and applies a proportional signal to electronic means for digital display.
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