Liquid level is an important control parameter in industrial production processes and can be measured by pressure transmitters. The physical formula related to the pressure P of the liquid is p=ρgh. ρ is the density of the liquid, which is constant, and g is the acceleration due to gravity, which is also constant. Therefore, in the end, the pressure P of the liquid and the height h of the liquid level form a proportional linear relationship, that is, the pressure of different high levels corresponds to different corresponding. One of the advantages of using pressure transmitters for level measurement is that they are non-contact, and compared to other measurement methods, the measurement method of pressure transmitters does not require too much contact with liquids and is relatively easy to install. Another advantage of using pressure transmitter to measure liquid level is that the measurement results are more intuitive, compared with some laser or ultrasonic measurement methods, the principle relationship of pressure transmitter to measure liquid level is simple and has a linear relationship, which is more convenient and intuitive in the processing and analysis of output data. If there is a deviation in the liquid level caused by temperature changes, we can indirectly convert the density by temperature compensation according to the correspondence between the density and the temperature, and then calculate the height of the liquid level. This is not difficult to achieve in the control software, especially for some intelligent pressure transmitters, which have their own temperature compensation function. If you have any questions about product consultation, product customization, agency, technical inquiry, quotation, etc., please contact Xingyi: 400-600-4496!