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oil filled air pressure gauge
1. Oil injection pressure: It is mainly composed of a sensor and an indicator. The sensor mainly includes a metal diaphragm (or bellows), a transmission mechanism and a potentiometer, which are used to sense the oil pressure and output corresponding electrical signals.
2. Ordinary pressure gauge: The gauge transmits the pressure deformation to the pointer through the elastic deformation of the Bourdon tube, a sensitive element in the watch, and then causes the pointer to rotate to display the pressure.
different applications
1. Oil filling pressure gauge: It is used to measure the oil pressure of the lubrication system of each part of the aircraft. It is an important parameter of the working state of the aircraft lubrication system. The oil pressure directly affects the heat generation and wear degree of the parts when they are working. The oil must be accurately measured. pressure.
2. Ordinary pressure gauge: suitable for measuring the pressure and vacuum of liquids, gases or vapors that do not explode, crystallize, solidify, and have no corrosive effect on copper and copper alloys.
Different characteristics
1. Oil filling pressure gauge: It is mainly a double-wire frame current ratio meter, which converts the electrical signal output by the sensor into the current ratio of the two wire frames, so that the pointer indicates the measured oil pressure on the dial.
2. Ordinary pressure gauge: The working pressure should be 1/3 to 2/3 of the full scale, and the maximum range should not exceed 3/4 of the full scale. The verification period is generally not more than half a year. If the pressure measurement part has large fluctuations in the medium, frequent use, high accuracy requirements, and stricter safety requirements, the verification period can be appropriately shortened according to specific conditions.
The oil filling pressure gauge is a shock-resistant pressure gauge (the main function is shock resistance, and it has a damping effect on the swing of the pointer)
Pressure gauges are divided into four categories according to sensors: spring tube pressure gauges, diaphragm pressure gauges, diaphragm pressure gauges, and diaphragm pressure gauges.
The main difference is that the elastic elements are different. The spring tube indicates the pressure through the deformation of the 270-degree C-shaped tube;
The diaphragm drives the pointer through a single diaphragm;
The diaphragm box is equivalent to welding two diaphragms together, just like a box, which is only used for gas measurement.
The diaphragm is a combination of diaphragm and spring tube.
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