Guided wave radar level meter This kind of level meter has the advantages of high precision, high reliability, long life, etc. It is widely used in chemical, petroleum, food, pharmaceutical and other industries for level measurement.
The module composition of guided wave radar level meter is the core part to realize the measurement function, which mainly includes signal transmitting module, signal receiving module, data processing module and communication module.
I. Signal Transmitter Module
Signal transmitting module is an important part of guided wave radar level meter, its main function is to generate high frequency electromagnetic wave and transmit it to the measured material through antenna. The module usually uses voltage controlled oscillator (VCO) or crystal oscillator to generate electromagnetic wave signals.
At the same time, the signal transmitting module also has a power control function, which can adjust the electromagnetic wave transmitting power according to the actual needs.
II. Signal receiving module
The main function of the signal receiving module is to receive the reflected electromagnetic wave signals and convert them into electrical signals. The module usually adopts ultra-aberrant receiver or zero-medium frequency receiver, which is characterized by high sensitivity and low noise.
The reflected electromagnetic wave signals are converted into electrical signals suitable for subsequent processing after amplification, filtering, frequency mixing and other processing by the receiver. The performance of the signal receiving module directly affects the measurement accuracy and reliability of the guided wave radar level meter.
III. Data-processing module
The data processing module is the core part of the guided wave radar level meter, and its main function is to process and analyze the received electrical signals to extract the height information of the material. The module usually uses digital signal processing (DSP) or field programmable gate array (FPGA) and other technologies to realize signal processing and algorithm operation.
The height information of the material can be calculated by analyzing the reflected electromagnetic wave signal in time and frequency domains. The processing speed and accuracy of the data processing module determine the overall performance of the guided wave radar level meter.
IV. Communication module
The main function of the communication module is to realize the data transmission and control between the guided wave radar level meter and the host computer. The module usually adopts communication protocols such as RS485, RS232 or Ethernet to realize data transmission and remote control.
Through the communication module, the measured data can be transmitted to the upper computer for display, storage and analysis, and it can also receive the control commands from the upper computer to realize remote control and parameter setting and other functions.
The module composition of the guided wave radar level meter is the core part of its realization of the measurement function, mainly including the signal transmitting module, signal receiving module, data processing module and communication module. These modules work together to complete the level measurement.
Understanding and mastering the module composition of the guided wave radar level meter will help to better apply and maintain this measurement instrument and improve the accuracy and reliability of measurement.