AEROMETRIC PRESSURE SENSOR Russian patent published in 2020 - IPC G01L7/02 G01L11/02 

FIELD: monitoring and measuring equipment.

SUBSTANCE: invention relates to instrumentation and can be used to measure the altitude and speed of flight of aircraft based on the use of the aerometric method. Aerometric pressure sensor comprises a housing in which there are two holes communicating with the measured medium, and inside which an aneroid sensitive element is formed, formed by the upper and lower membranes, which are divided into upper and lower membranes attached to housing with a gap between them. At that, two holes of the housing are located above and below the gap, inside the gap there are two sources of optical radiation, a post attached to the housing, and two photoreceiving lines fixed on the rack opposite to the radiation sources, to the centers of the upper and lower membranes are rigidly attached curtains with slits, located in front of the photosensitive region of the photoreceiving lines, outputs of two photoreceiving lines through corresponding ADC are connected to two inputs of microcontroller, first and second control outputs of which are connected to two control inputs of both photoreceiving lines, and the second control output of the microcontroller is connected to the control input of both ADCs, the output of the microcontroller is connected to the device for recording aerometric pressures.

EFFECT: increase in the measurements accuracy.

1 cl, 3 dwg