RU93034205A - VIBRATION DIFFERENTIAL MEMBRANE PRESSURE CONVERTER - Google Patents

Claims (1)

The invention relates primarily to the gas industry and is designed to convert the pressure drop of gases into the frequency of alternating voltage (current) in a wide range of operating pressures, can be used in all industries where measurement of pressure drops of gases with high accuracy and noise immunity is required when transmitting measurement results over a distance . Vibration differential membrane gas pressure sensor contains a sealed enclosure with fittings, a membrane, a vibroelement, a causative agent and an oscillation receiver in the form of inductors with a core. The membrane is made of a material with a low temperature dependence (fiberglass, carbon fiber) with the addition of a ferromagnetic material or with reinforcement on its surface of parts made of ferromagnetic alloys in the area of the electromagnetic fields of the pathogen and the oscillation receiver. The membrane is simultaneously used as a vibro element. As the cores of the inductor coils of the pathogen and the sensor oscillation receiver are used fittings made of ferromagnetic material.