HYDROSTATIC LEVEL SENSOR WITH EXTENDED OPERATING RANGE Russian patent published in 2021 - IPC G01C9/18 

FIELD: measurement technology.

SUBSTANCE: invention relates to the field of measurement technology related to the control of the height positions of the nodes of the structure, in particular to applied geodesy. The hydrostatic level sensor with an extended temperature range of operation, containing a matrix photodetector, sighting targets and a video processor, also contains a temperature sensor with possibility of setting the upper and lower temperature limits, an electronic key with normally closed and normally open contacts and a heating element. The output of the temperature sensor is connected to the control inputs by electronic keys, the outputs of which are connected to the power supply circuits of the video camera and the heating element. When the temperature drops below the lower limit value, the power supply of the heating element is turned on and the power supply of the video camera is turned off. When the temperature rises above the upper limit value, the power supply of the video camera is turned on and the power supply of the heating element is turned off.

EFFECT: reliable operation of the sensor in an extended temperature range.

1 cl, 1 dwg