The ultrasonic flow meter operates by alternately transmitting and receiving a burst of ultrasound between the two transducers by measuring the transit time that it takes for sound to travel between the two transducers in both directions. ... When the liquid in the pipe is not moving, the ∆ Time would be zero.Dec 5, 2017
How accurate are ultrasonic flow meters?
Magmeters are highly accurate, with inaccuracies of ±0.5 percent of rate or less. In comparison, transit-time ultrasonic meters have inaccuracies of ±1 to 2 percent of rate. Cost comparisons depend greatly on the specific project rather than meter cost. Both meters can provide cost-effective flow measurement.
What are the different types of ultrasonic flow meter?
There are two types of ultrasonic flow meter technologies: Doppler shift and transit-time. Transit-time measures the time differential between signals sent upstream and downstream. The differential is directly proportional to the velocity of the water.Sep 10, 2019
Where ultrasonic flow meter is used?
Ultrasonic meters are ideal for wastewater applications or any dirty liquid which is conductive or water based but will generally not work with distilled water or drinking water. These flow meters are also ideal for applications where low pressure drop, chemical compatibility, and low maintenance are required.Aug 28, 2018
What are ultrasonic flow meter used for?
An ultrasonic flow meter utilizes ultrasound to measure the velocity of a fluid and is used in a variety of fluid applications. Ultrasonic flowmeters are ideal for water and other liquids.Dec 5, 2017
What is a portable flow meter?
Portable Flow Meters. ... These ultrasonic flow meters utilize ultrasound to measure the velocity of a given fluid or gas - also known as "flow" - and are used in a wide variety of fluid and gas applications, from wastewater and various fuels to natural gas and compressed air.
What does an ultrasonic Doppler flow detector measure?
Ultrasonic flow meters are non-intrusive devices that use acoustic vibrations to measure the flow rate of liquid. ... Ultrasonic Doppler flow meters put this frequency shift to work in so-called dirty liquids containing acoustical discontinuities; suspended particles, entrained gas bubbles or turbulence vortexes.Aug 28, 2018