Displacement transducers

Details Displacement transducers Displacement transducers

1977-01-26

1978-07-11

Mullins, James B.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250231SE, 250237G, 307221D, 307311, G01N 2130

Patent

active

041004205

ABSTRACT:
A displacement transducer comprises a charge coupled device having a plurality of light sensitive stages arranged in a line. An obturating member connected to a member whose displacement is to be transduced is disposed between the charge coupled device and a light source. As the obturating member is moved, it varies the amount of light received by the respective stages of the charge coupled device, so that the charge distribution in the charge coupled device is representative of the position of the obturating member and therefore of the member whose displacement is to be transduced.

REFERENCES:
patent: 3619626 (1971-11-01), Rudolph
patent: 3748043 (1973-07-01), Zipin
patent: 3916185 (1975-10-01), Jehly
Chai et al. "Noise Compensator for Charge--Coupled Devices," IBM Technical Disclosure Bulletin, v. 16, No. 4, Sep. 1973, pp. 1099, 1100.

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