Pressure sensor is the most commonly used sensor in industrial practice. It is widely used in various industrial self-control environments, involving water conservancy and hydropower, railway transportation, intelligent building, production automation, aerospace, military, petrochemical, oil well, electric power, ship, machine tool. , pipelines and many other industries.
1. Rated pressure range
The rated pressure range is the pressure range that meets the standard specified value, that is, the pressure range between the highest and lowest temperatures, the sensor output meets the specified operating characteristics, and the pressure measured by the sensor is within this range in practical applications.
2, the maximum pressure range
The maximum pressure range refers to the maximum pressure that the sensor can withstand for a long time, and does not cause permanent changes in output characteristics. In particular, semiconductor pressure sensors generally reduce the rated pressure range greatly to improve linearity and temperature characteristics, so even in Continuous use above rated pressure will not be damaged. The general maximum pressure is 2-3 times the highest rated pressure.
3, damage pressure
Damage pressure is the maximum pressure that can be machined onto the sensor without damaging the sensor element or sensor housing.
4, linearity
Pressure sensor linearity is the maximum deviation of the linear relationship between sensor output and pressure over the operating pressure range.
5, pressure hysteresis
The difference in sensor output when approaching a certain pressure from the minimum working pressure and the maximum working pressure at room temperature and operating pressure.
6, temperature range
The temperature range of the pressure sensor is divided into the compensation temperature range and the operating temperature range. The compensation temperature range is due to the temperature compensation applied, the accuracy enters the temperature range within the rated range, and the operating temperature range is the temperature range that ensures the normal operation of the pressure sensor.
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