Thermal gas flowmeter's anti-interference ability under harsh working conditions

Project Overview

Thermal gas flow meter is a commonly used instrument used to measure the flow rate of gas. Its stability and durability perform well under harsh working conditions, especially its excellent anti-interference ability.

Under harsh working conditions, environmental conditions may become very harsh, such as high temperatures, corrosive gases, etc. However, through its unique design and technical features, thermal gas flow meters are able to operate normally under these extreme conditions and provide accurate and reliable measurement results.

Thermal gas flow meter uses thermistor as the measuring element. When gas passes through the flow meter, the hot wire where the thermistor is located will be cooled by the gas and produce a temperature change. By measuring the change in resistance of the resistor, the flow rate of the gas can be determined. Since the hot wire is in contact with ambient gases, its surface area is relatively small, making the thermistor less susceptible to environmental conditions.

Thermal gas flow meter has high stability. Even under severe operating conditions, the characteristics of the thermistor remain relatively stable. This means that in environments with large changes in temperature, humidity and gas composition, the measurement results of the thermal gas flow meter can still maintain a certain degree of accuracy and repeatability.

Most importantly, thermal gas flow meters have excellent interference immunity. It is resistant to the influence of external factors on the measurement results, such as vibration, electromagnetic interference and impurities in the gas. This is because the measurement principle of the thermal gas flow meter is based on the heat conduction effect and is not affected by other factors. Therefore, thermal gas flow meters can provide stable and reliable measurements even in noisy environments such as industrial production sites.