Pressure Gauge is a device used to measure atmospheric pressure. When high above the barometric pressure, the water rises and vice versa. It can measure the pressure caused by the atmosphere using water, gas or mercury. The changing trend of pressure can be a short-term forecast in weather forecast. Many measurements of atmospheric pressure are used in surface weather analysis to find grooves, high pressure areas, etc.
Pressure Transmitter is an industrial measuring device used to measure liquid and gas pressure. Beside the name Pressure transmitter, there are other names such as water pressure sensor; water pressure sensor, gas pressure sensor, oil pressure sensor, ....
Barometer is the pressure in the Earth's atmosphere (or that of another planet). In most cases, atmospheric pressure is nearly equivalent to hydrostatic pressure due to the weight of the air above the measuring point. As the altitude increases, the volume of the atmosphere decreases less, thus the atmospheric pressure decreases with increasing altitude. Pressure measures force per unit area, with SI units of Pascals (1 pascal = 1 newton per square meter, 1 N / m2).
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