The research group including Pak Pyong Su, a head of lab the of Semiconductor Institute, developed entirely in our own way the position sensitive detector available for all kinds of precision devices such as an electronic scale, a range finding system, a bevel gauge, a vibrometer, and other displacement sensing elements and are now expanding its achievements.
The element has a non-linearity error of 0.1% and position sensitivity of 0.2 to 0.3㎛.
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