Working principle

Very short microwave pulses with very low energy are transmitted and received through an antenna system. Radar waves travel at the speed of light. The operating time can be converted into a level signal by means of electronic components. A special time extension method ensures stable and precise measurements in a very short period of time.

Even if the working conditions are more complicated and there are false echoes, the echoes of the material level can be accurately analyzed with the latest microprocessor technology and debugging software. 

Input

The antenna receives the reflected microwave pulse and transmits it to the electronic circuit. The microprocessor processes the signal and identifies the echo generated by the micro pulse on the surface of the material. The correct echo signal identification is completed by the pulse software, and the accuracy can reach the millimeter level. The distance D from the material surface is proportional to the time travel T of the pulse：

D=C×T/2, where C is the speed of light

Since the distance E of the empty tank is known, the object position L is: L= E-D 

Output

By entering empty tank height E(= zero), full tank height F(= full range) and some application parameters, the application parameters will automatically adapt the meter to the measuring environment, corresponding to 4-20mA output. 

Design features

    ◎Intelligent radar object level meter adopts advanced microwave processing technology and unique Echo Discovery Echo processing technology, the product can be applied to a variety of complex working conditions.

    ◎"False echo learning" function enables the instrument to accurately identify the real echo in multiple false echo conditions, so as to obtain accurate measurement results.

    ◎Various process connection mode and detection module type, can be customized according to customer requirements.

    ◎Pulse working mode, low emission power, can be installed in a variety of metal, non-metal containers, no harm to human body and the environment.