ATMOSPHERIC PRESSURE GAUGE Russian patent published in 1998 - IPC

FIELD: instrumentation engineering. SUBSTANCE: pressure gauge has gas-filled reservoir (!) to which capillary tube (!!) with ends bent upwards, oil indicator (!#), pressure scale, as well as temperature error compensator are connected. Reservoir (1) is provided with gas medium volume regulator made as piston. Temperature error compensator consists of thermodrive (17) and deformable vessel (18) with one end secured to gas-filled reservoir (1) and communicating with the latter through its cavity and with second end coupled to thermodrive. Bent out end of capillary tube (11) which carries three-way cock (12) coupling the hollows of tube and reservoir to atmosphere is attached to reservoir (1). EFFECT: higher convenience in operation. 3 cl, 2 dwg