There are three different types of ultrasonic flow meters.
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Ultrasonic flow meters that use the Doppler shift are called Reflection or Doppler flow meters.
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Ultrasonic flow meters are one of the few devices capable of measuring in a biogas atmosphere.
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The most elaborate types of ultrasonic flow meters average speed of sound over multiple paths in the pipe.
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For example, ultrasonic flow meters are used for the measurement of such diverse fluids a liquid natural gas ( LNG ) and blood.
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Ultrasonic flow meters have negligible pressure drop if recommended installation is followed, have high turndown capability, and can handle a wide range of applications.
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Ultrasonic flow meters come in three different types : transmission ( contrapropagating transit time ) flowmeters, reflection ( Doppler ) flowmeters, and open-channel flowmeters.
8.
An "'ultrasonic flow meter "'is a type of flow meter that measures the velocity of a fluid with ultrasound to calculate volume flow.
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Ultrasonic flow meters are affected by the acoustic properties of the fluid and can be impacted by temperature, density, viscosity and suspended particulates depending on the exact flow meter.
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One advantage of ultrasonic flow meters is that they can effectively measure the flow rates for a wide variety of fluids, as long as the speed of sound through that fluid is known.
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