发明名称 |
Optical gaging system |
摘要 |
An electro-optical gaging system which comprises a linear array of photo-sensitive diodes where the thickness of an object against a dark background is measured by determining the number of diodes which are discharged due to light incident thereon from the object. Each diode of the array is sequentially scanned during a scanning cycle to recharge the capacitance of the discharged diodes and the number of charging pulses is a measurement of the thickness of the object. A separate photo-sensitive element senses the light conditions and generates pulses which determine the repetition rate of the scanning cycle to maintain system calibration. A start scan signal is also utilized to determine that the light intensity is within predetermined limits.
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申请公布号 |
US4160599(A) |
申请公布日期 |
1979.07.10 |
申请号 |
US19770858822 |
申请日期 |
1977.12.08 |
申请人 |
UNIVERSAL TECHNOLOGY, INC. |
发明人 |
SPERRAZZA, JOSEPH L. |
分类号 |
G01B11/02;G01B11/06;G01N21/59;G01N21/86;(IPC1-7):G01B11/06 |
主分类号 |
G01B11/02 |
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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