Pressure gauge in error

Pressure gauge is a sensitive element (by table Bourdon tubes, bellows, bellows) Elastic deformation, the pressure deformation by the transformation of movement in table to Pointers, cause the hands to display the pressure. Pressure gauge, English name: pressure the gauge) Refers to elastic element as the sensitive element, measure and instructions above environment pressure meter, the widespread application, it almost throughout all of the industrial process and research fields. In the heat pipe network, oil and gas transmission, water supply, gas supply system, vehicle maintenance shop, etc can be seen everywhere. Especially in the process of industrial process control and technology measure, due to the flexibility of mechanical pressure gauge sensor has high mechanical strength and production is convenient wait for a characteristic, make the mechanical pressure gauge is widely used. Pressure gauges have errors generally have the following two: 1, after the first fast slow reason: proportion of, amplify small between the connecting rod and gear tooth profile Angle. The repair methods: increase the Angle, if it is short of objective, can shorten the length of connecting rod 2, slow, quick reasons: first small magnification ratio, between the connecting rod and gear tooth profile Angle is larger. The repair methods: reduce the Angle, if it is short of objective, can increase the length of connecting rod