photochopper

plural photochoppers

1. businessAn optoelectronic device that converts a DC input signal into a higher frequency signal.

   ... the isolation between the bulb and photochopper must be 170 db.

   1966, Richard F. Shea, Amplifier handbook, page 18-66

   2 more examples

   A typical photochopper circuit is made up of two neon bulbs electrically connected in the form of a relaxation oscillator (Fig. 5).

   1963, Space/aeronautics - Volume 40, page 98

   Electric pulses with a frequency proportional to the angular velocity of the cups are obtained by means of radial magnets on the rotor axis and fixed transducers or by means of a photochopper.

   1998, R. Baudo, Gianni Tartari, M. Munawar, Top of the world environmental research