photochopper
English edit
Etymology edit
Noun edit
photochopper (plural photochoppers)
- (electronics) An optoelectronic device that converts a DC input signal into a higher frequency signal.
- 1963, Space/aeronautics - Volume 40, page 98:
- A typical photochopper circuit is made up of two neon bulbs electrically connected in the form of a relaxation oscillator (Fig. 5).
- 1966, Richard F. Shea, Amplifier handbook, page 18-66:
- ... the isolation between the bulb and photochopper must be 170 db.
- 1998, R. Baudo, Gianni Tartari, M. Munawar, Top of the world environmental research:
- 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.