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Application of Pressure Transmitter in Measuring Mud Pressure

by:Sure     2021-08-11
In industrial measurement, there are always many special measurement media. Such as strong acid, strong alkali, or more complex measuring media, such as asphalt, mud, etc. In actual production needs, there are many places to measure the pressure of the mud. So high requirements are put forward on how to choose a pressure transmitter. We all know that the pressure sensors used on ordinary pressure transmitters are used in industrial measurement, and there are always many special measurement media. Such as strong acid, strong alkali, or more complex measuring media, such as asphalt, mud, etc.  In actual production needs, there are many places to measure the pressure of mud. So high requirements are put forward on how to choose a pressure transmitter.   We all know that the pressure sensors used on ordinary pressure transmitters are ceramic, diffused silicon and so on. When they are in contact with the medium, the requirements for the medium are relatively strict. Ceramics are relatively brittle, and the diaphragm of diffused silicon is relatively thin, which is afraid of hard objects. Once hard particles hit the diaphragm, the sensor is broken.  What should we do?   We used a kind of load cell when simulating the pressure of coal seam. Yes, it is a load cell. When there is pressure to squeeze the pressure fulcrum of the load cell, there will be a change in weight. Can we also use this method to measure mud? Make the pressure-bearing point a flat surface with a fixed size. Pressure is the pressure per unit area. Knowing the area, the pressure can be calculated. When doing calibration, calibrate according to a certain ratio.  In actual use, this method is quite feasible. Only when the pressure is small, this method is not sensitive enough, and the accuracy cannot be guaranteed.
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