Pressure-electrical signal conversion means

Details Pressure-electrical signal conversion means Pressure-electrical signal conversion means

G - Physics

01

L

73/3

G01L 7/08 (2006.01) G01L 9/00 (2006.01) G05D 16/20 (2006.01) H04R 23/00 (2006.01)

Patent

CA 1074144

PRESSURE-ELECTRICAL SIGNAL CONVERSION MEANS ABSTRACT OF THE DISCLOSURE A diaphragm assembly is moved in accordance with the difference of pressure between two compartments. Light is directed in a band onto a photosensitive unit which includes two elements so disposed that, when any particular band of the photosensitive unit is illuminated, the illuminated area of one element may be different from that of the other. An output is generated proportional to the relative size of the illuminated areas of these elements, the photosensitive unit and band of light being movable relative to one another.

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