Principle
The antenna of the radar level gauge emits a very narrow microwave pulse. This pulse travels in space at the speed of light and hits the surface of the measured medium. Part of its energy is reflected back and received by the same antenna. The time interval between the transmitted pulse and the received pulse is proportional to the distance from the antenna to the surface of the measured medium. Due to the extremely high propagation speed of electromagnetic waves, the time interval between the transmitted pulse and the received pulse is very small (nanosecond order) and difficult to confirm. The EY300 series radar level gauge adopts a special related demodulation technology, which can accurately identify the time interval between the transmitted pulse and the received pulse, so as to further calculate the distance from the antenna to the surface of the measured medium.
Features
Thanks to the advanced microprocessor and unique EchoDiscovery echo processing technology, the radar level gauge can be applied to various complex working conditions.
The "false echo learning" function enables the meter to correctly confirm the true echo and obtain accurate measurement results under multiple false echo conditions.
A variety of process connection methods and antenna types make the EY300 series radar level gauge suitable for various complex working conditions and applications. Such as: high temperature, high pressure and small dielectric constant medium measurement.
Using pulse working mode, the radar level meter has extremely low transmit power, and can be installed in various metal and non-metal containers without harm to the human body and the environment.