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The flow velocity is measured using the reflection characteristics of radar signals. The instrument emits pulsed radio waves and receives signals reflected by particles within the fluid, such as bubbles and suspended solids. According to the Doppler effect, when particles move in the same direction as the fluid flow, the…
Radar Velocity Sensor
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The radar water level sensor emits radar pulses through its antenna, which also receives the pulses reflected from the water surface and records the time. By measuring the time difference between the transmission and reception of the electromagnetic wave, the radar level meter calculates the distance to the water surface. The…
Radar Level Transmitter
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In acoustics, when there is relative motion between the sound source and the observer, the Doppler effect occurs. In this case, the frequency of the echo heard by the observer differs from the original source frequency; this change is called the Doppler frequency shift. Electromagnetic waves also exhibit the Doppler effect,…
Radar Flow Meter
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When the submersible level transmitter is immersed in a certain depth of the measured liquid, the sensor is subjected to the pressure from the liquid surface. This pressure is transmitted to the positive pressure chamber of the sensor through a gas-conducting stainless steel tube. At the same time, the atmospheric pressure P0…
Hydrostatic Level Transmitter
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The transducers of the Acoustic Doppler Flow Meter emit acoustic waves into the water and receive echo signals with varying frequencies. Based on the frequency shift caused by the Doppler effect, the flow velocity is determined. By combining the measured velocity with the cross-sectional area of the pipe or channel, the flow…
Doppler Flow Meter