What is the principle of guided wave radar? Is it different from radar level gauge?

Radar level gauges and guided wave radar level gauges can be used in general. Ordinary radar level gauge is non-contact measurement, guided wave radar is contact measurement, which means that guided wave radar needs to consider the corrosion and adhesion of the medium, and the installation and maintenance of too long guided wave radar is more difficult. Ordinary radars can be used interchangeably, while guided wave radars generally cannot be used interchangeably because the length of the guide rod (cable) is fixed according to the original working conditions. Affected by this, the selection of guided wave radars is more troublesome than ordinary radars. When measuring solid materials, the guided wave radar also needs to consider the force of the probe (cable), which is also due to the force. Generally, the measurement distance of the guided wave radar will not be very long, while the ordinary radar is in a tank of 30 or 40m. Body application is more common, and even can be measured to 60m. However, guided wave radar has obvious advantages in some special working conditions, such as stirring in the tank and large fluctuations in the medium. Position measurement, due to the small installation and measurement space (or many disturbances in the tank), ordinary radar is not applicable, at this time the advantages of guided wave radar will appear; The measurement principle of guided wave radar is based on the difference in the dielectric constant of the medium. Since the waves emitted by ordinary radar are divergent, when the dielectric constant of the medium is too low, the signal is too weak and the measurement is unstable, while the guided wave radar wave is along the guided wave. The signal transmitted by the pole is relatively stable. In addition, the general guided wave radar also has the bottom detection function, which can be corrected according to the measured value of the bottom echo signal to make the signal more stable and accurate. Microwave solid flowmeter LY-DY-III intelligent conductance salt density meter throttling flowmeter

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