FIBER-OPTIC PRESSURE SENSOR Russian patent published in 2006 - IPC G01L11/02 

FIELD: measurement engineering.

SUBSTANCE: sensor can be used in medical and biological testing, hydroacoustics, aerodynamics, and guard systems at remote pressure monitoring. Pressure sensor has case, flexible membrane, dissipating lens, frame provided with light slot, movable light-proof partition. Light guide and photodetector are connected together by means of optical channel. Dissipating lens, frame with light slot, light-proof partition is disposed inside optical channel. Partition is connected with flexible membrane through rocking. Partition is made for displacement. Displacement provides linear dependence of area of light slot on displacement of flexible membrane.

EFFECT: widened range of sensor's linear characteristic.

2 cl, 3 dwg