Pressure transmitter varistor is divided into capacitor type, resonant type, piezoresistive type, force balance type, inductive type, strain type, etc. The commonly used pressure varistor has diffused silicon pressure transmitter and piezoelectric pressure transmission. , capacitive pressure transmitters, ceramic pressure transmitters. Different pressure transmitters have different characteristics. The difference is mainly concentrated on the pressure sensor. But in general, the working principle is basically the same. When the pressure signal acts on the sensor, the sensor converts the pressure signal into an electrical signal. Through differential amplification and output amplification. The V/A voltage and current are converted into a 4-20 mA standard current output signal linearly corresponding to the measured medium liquid level pressure, thereby being used by other devices such as a digital sub-pressure gauge, an electronic potentiometer, an intelligent regulator, a computer, etc. . Â
The pressure transmitter is an important output signal instrument in the conversion of pressure variables, and is widely used in oilfields, power plants, metallurgy and other industries. The pressure transmitter is bolted to analyze its measurement uncertainty, which is a necessary means to ensure safe production. In this paper, the uncertainty of pressure transmitter measurement is analyzed as a research object, which has certain practical application value. The pressure transmitter is a kind of signal instrument that can convert the physical pressure parameters such as gas and liquid into standardized and transmittable electrical signals. It is mainly composed of three components: the load cell sensor, the measuring circuit and the process connection. Secondary instruments such as alarms, recorders, and regulators are used together for measurement, indication, and process adjustment. Compared with traditional direct-reading pressure gauges, pressure transmitters seem to transmit signals over long distances with higher intelligence.
With the development of industrial measurement and control technology and the improvement of automation level, pressure transmission instruments are increasingly used in oilfields, power plants, metallurgical and other industries to measure pressure, differential pressure, flow, liquid level and other signals. To ensure the reliability of the pressure transmitter measurement, the measurement uncertainty analysis of the pressure transmitter is of great significance to ensure safe production and stable operation of the system.Medical Equipment
Medical Equipment,Medical Dental Unit,Dental Medical Equipment,Medical Dental Equipment
ZHEJIANG FOMOS MEDICAL TECHNOLOGY CO.,LTD. , https://www.ifomos.com