How to correctly select the sensitivity of the liquid level sensor for the fire pressure sensor?
Release time:
2022-01-10
Source:
Design Cloud
Author:
Author
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With the development of sensor technology, the forms of liquid level sensors will be diverse, and in the future, they will be comprehensively improved, while also developing towards miniaturization, intelligence, and multifunctionality. Below is an introduction on how to choose the sensitivity of liquid level sensors. If the temperature unevenness of the upper and lower layers of liquid is not considered, it can be assumed that the density is consistent, avoiding unnecessary losses that affect the sensitivity of the sensor. The application and technical requirements of high-temperature and high-pressure liquid level sensors are suitable for continuous measurement of liquid levels in various high-pressure equipment and containers during industrial production processes, with a transmission output of 4-20mA DC standard signal, which can be directly used for electrical instruments and computer connections, automatic control, etc. It is easy to calculate weight from volume. However, in large containers of liquid level sensors, there are often phenomena such as uneven physical quantities like temperature, density, and viscosity of the measured medium, which may change over time and temperature, leading to measurement errors.
For liquids with good fluidity, the liquid surface is horizontal, so in addition to using the wall of the container as an electrode for capacitive level meters, general level meters only have requirements for installation height, allowing any installation location to be chosen at the same height. Ideally, the liquid surface is a regular surface, but when materials flow in and out, there will be waves, or during the production process, the measured liquid may boil, foam, or have suspended substances on the surface, making the liquid surface uneven. In the containers of liquid level sensors, there are often high temperatures and pressures, which should be avoided to prevent unnecessary losses affecting the sensitivity of the sensor. The application and technical requirements of high-temperature and high-pressure liquid level sensors are suitable for continuous measurement of liquid levels in various high-pressure equipment and containers during industrial production processes, with a transmission output of 4-20mA DC standard signal, which can be directly used for electrical instruments and computer connections, automatic control, etc. Conditions such as high liquid viscosity or a large amount of impurities and suspended substances can adversely affect measurements. It is well known that the higher the sensitivity of the sensor, the better, but during the purchasing process, attention should still be paid to minimizing external interference.
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