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Is the radar level gauge a radar wave?
Radar level gauges are widely used in: metallurgical smelting, power generation, water treatment and other industries, but is the radar level gauge a radar wave? Below we will explain to you what the relationship is, or what kind of speciality between them, radar wave is a special way of electromagnetic waves, and radar level gauge uses the special performance of electromagnetic waves to implement the level Inspection and measurement, the physical special properties of electromagnetic waves are similar to visible light, and the wide spreading speed can be equivalent to the speed of light. Its frequency is 300MHz-3000GHz. Electromagnetic waves can penetrate the interference sources such as space steam and dust. When the stumbling block is hit, it is easy to be reflected. The better the conductivity of the surveyed medium or the larger the dielectric constant, the better the reflection effect of the echo signal. The higher the frequency of the radar wave, the smaller the angle of the emitted wave. The larger the energy (magnetic flux or field strength) of the unit plane or the surface of the object, the smaller the attenuation of the wave, and the better the radar level gauge is. The radar level gauge is mainly composed of a transmitting and collecting device, a signal processor, a receiving antenna, an operating panel, a revealing, a fault alarm and the like. The basic office principle of the radar level gauge office is from launch to reflection to collection. The receiving antenna of the radar sensor transmits a minimum 1.8 GHz radar signal in a beam. The signal from the reflection return is still collected by the receiving antenna. The running time of the radar electronic pulse signal from the time of transmission to the collection is proportional to the distance between the sensor and the medium appearance and the level. Only the precise use of these office principles and a little operation technology It will not lead to errors in the office and reach the final result of the final survey. Example: h=H–vt/2 Where h is the liquid level; H is the groove height; V is the radar wave velocity; and T is the interval between the radar wave emission and the collection. The extremely short microwave electron pulses of the radar level gauge emitting very low energy are transmitted and collected by the receiving antenna system. Radar waves operate at the speed of light. The running time can be changed to a level signal by the current through the sub-device. A special time extension method ensures a very stable and very accurate survey in a very short time. Even in the case of complicated working conditions, there are false echoes, and the echoes of the level can be correctly analyzed with the latest micro-disposal technology and adjustment software. The input-receiver antenna collects the reflected microwave electron pulse and transmits it to the electronic circuit. The micro-processor processes the signal to identify the echoes generated by the micro-electron pulse on the material surface. Accurate echo signal discrimination is done by intelligent software with precision up to millimeters. The distance D from the material appearance is proportional to the time travel T of the electronic pulse: D = C × T / 2 where C is the speed of light; since the distance E of the empty can is known, the level L is: L = ED output - after input Empty tank height E (= zero point), full tank height F (= full scale) and a point of application parameters to set, the application of parameters will semi-automatically adapt the meter to the survey background. Corresponds to the 4-20mA output. Application media: Intelligent radar level gauge is suitable for non-contact coupling survey of liquid and slurry materials. It is suitable for use in temperature and pressure fluctuations; in the presence of inert gas and volatilization. It is considered appropriate to use microwave electron pulse survey methods and can work normally in the industrial frequency band. The beam energy is low and can be installed in various metal, non-metallic vessels or pipes without damage to the human body and the background.