DEVICE FOR AUTOMATIC MEASURING OF DISTANCE BETWEEN TWO OBJECTS Russian patent published in 1995 - IPC

FIELD: telephotography. SUBSTANCE: device has irradiator, time digital counter, panel and receiver; all the units are mounted onto the object-transponder. Output of the irradiator mounted onto the basic object, is connected with the first input of time counter, which has output to be connected with the panel. Output of the receiver is connected with input of the irradiator. Device also has switching unit provided with frequency filters. The unit is mounted onto the basic object and has input connected with output of the receiver, which is mounted onto the basic object. Output of the switching unit is connected with the second input of time counter. Irradiator is multifrequent at object-transponder. The device is realized for four-variant construction. EFFECT: improved precision of measurement. 5 cl, 5 dwg