FIELD: measurement technology, test or measurement of linear dimensions. SUBSTANCE: optical displacement transducer has light-emitting diode, first and second photodetectors, mobile reflecting screen and measuring rod. First photodetector is illuminated by light flux reflected from mobile screen which is created by light-emitting diode. Reflecting surface of mobile screen has shape of concave spherical mirror. Optical axis of mirror is inclined towards optical axis of light-emitting diode by angle with which maximum illumination of first photodetector is provided by maximum displacement. Second photodetector has constant adjustable coupling with light-emitting diode. Output of second photodetector is connected to output of first photodetector in series opposition. EFFECT: simplified design and increased precision of optical displacement transducer. 3 dwg
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