FIELD: instrument making.
SUBSTANCE: invention relates to instrument making, particularly to indicating pressure gauges. Proposed pressure gauge comprises cylindrical accommodating holder-base with union for connection to measured pressure on casing outer side, Bourdon tubular spring with its free end coupled, via tie rod, with transfer pinion-sector mechanism to transform tube free end motion into pointer circular motion, pointer being arranged on pinion axle, above the dial. It comprises also a balancer representing weights moving on threaded pin and zero corrector arranged on instrument casing and comprising cylindrical tension spring. Tension of the latter varies in turning screw with cam to correct pointer position with respect to zero point. Note here that cylindrical tension spring is arranged to dampen vibrations of Bourdon spring. Note also that said cylindrical tension spring is fastened with the help of clips produced by bending spring extreme turns out so that one spring clip enters freely the screw eyelet hole while another clip is rigidly attached to Bourdon spring tip wit flat extension.
EFFECT: higher accuracy, reliability and vibration resistance.
5 cl, 2 dwg
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