The pulse radar level gauge adopts a non-contact measurement method, which calculates the level height by emitting microwave pulses and receiving reflected echoes. The measurement error is mainly affected by equipment accuracy, measurement environment, and the characteristics of the measured medium. Generally speaking, high-precision pulse radar level gauges can achieve a measurement error of ± 1mm, meeting the high requirements for measurement accuracy in application scenarios. However, in practical applications, the measurement error may increase due to the complexity of the measurement environment (such as temperature, pressure, steam, foam, etc.) and the characteristics of the measured medium (such as dielectric constant, density, viscosity, etc.).

In addition, the measurement error of the pulse radar level gauge is also related to factors such as its transmission frequency, antenna design, and echo processing technology. For example, pulse radar level gauges with higher transmission frequencies typically have smaller beam angles and higher energy concentration, which can improve measurement accuracy and anti-interference capabilities. At the same time, advanced echo processing technology can effectively identify and process false echoes, further improving measurement accuracy.