| 摘要 |
A fiber-optic position sensor includes a light source, a light detector that produces analog electrical signals proportional to the intensity of incident light on the detector, and fiber-optic bundles for transmitting illumination light to an object, transmitting reflected light from the object to the detector, and reference light from the light source directly to the detector. Electronic circuits are also provided for use with the optical position sensor for processing the signals from the detector to determine the position of the object. The detector is a photovoltaic bi-cell having two discrete regions, the first being used to detect the reference light and the second being used to detect the reflected light. A mounting block configuration is also provided to conveniently hold the optical elements.
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