HIGH-TEMPERATURE PRESSURE PERCEPTION Russian patent published in 2018 - IPC G01L9/12 

FIELD: measuring equipment.

SUBSTANCE: group of inventions relates to the field measurement means at the external temperature elevated values. In particular, the embodiments relate to capacitive sensors in the process equipment. Pressure sensing system includes a hot zone electronic equipment module (114), cold zone electronic equipment module (116), and plurality of conductors (110), which connect the hot zone of the electronic equipment module (114) to the cold zone electronic equipment module (116). Hot zone electronic equipment module (114) includes capacitive pressure sensor (201) and generator (212), which provides the oscillation signal to capacitive pressure sensor (201). Hot zone electronic equipment (114) provides at least one DC (direct current) sensor signal. Cold zone electronics module (116) converts at least one DC sensor signal into the pressure value and outputs the DC power signal. Plurality of conductors (110) transmit the DC power signal to the hot zone electronic equipment module (114) and transmit at least one DC sensor signal to the cold zone electronic equipment module (116).

EFFECT: technical result consists in increase in the measurements accuracy and noise immunity.

21 cl, 4 dwg