Ultrasonic Water Flow Meter Accuracy

2 dandanzheng pengyongzhang tianshixu study of acoustic transducer protrusion and recess effects on ultrasonic flow meter measurement by numerical simulation flow measurement and instrumentation vol 22 pp 488 493 2011.

Ultrasonic water flow meter accuracy.

The 3418 combines the power of two interlocked 4 path british gas design meters in one flow meter body. By far the best reason to use an ultrasonic flow meter of any kind is the lower costs associated with installation. With the deployment of a reference standard flow measurement device the meter can be calibrated across a specific known flow range. There are two types of ultrasonic flow meter technologies.

Transit time ultrasonic flowmeters can fail to operate when an opaque fluid weakens the ultrasonic wave to such an extent that the wave does not reach the receiver. A a 100 s 1 where. S full scale of the flow meter. All water meters built upon the transit time ultrasonic principle require some kind of flow calibration.

The new daniel 3418 8 path ultrasonic flow meter crafted developed and designed by emerson offers the highest accuracy and best in class performance coupled with the same high functionality required by sophisticated fiscal measurement users. Example accuracy of flow meter in percent of full span. If the absolute accuracy is 10 kg h the relative accuracy at full scale 1000 kg h can be calculated as. The flow rate measurement that occurs in an ultrasonic water meter is critical to the accuracy of the meter.

Transit time measures the time differential between signals sent upstream and downstream. In doppler ultrasonic flowmeters opaque fluids can limit ultrasonic wave penetration too near the pipe wall which can degrade accuracy and or cause the flowmeter to fail to measure. Dane ultrasonic measurement of unsteady gas flow flow measurement and instrumentation vol. Accuracy in percent of full span can be expressed as.

Doppler shift and transit time. A relative accuracy a absolute accuracy. For easy and cost efficient installation pick a highly advanced clamp on flow solution. Therefore doppler ultrasonic flow meters are obviously better suited for aerated or impure water applications i e.

Ultrasonic flow meters are inferential meters that uses ultrasonic technology to measure the velocity of an acoustically conductive liquid moving through it. Location ultrasonic flow meter 0 5 accuracy ultrasonic flow meter lrf 3300s sample book comparing with other traditional flowmeter or ultrasonic flowmeter it has distinctive features such as high precision high reliability high capability. For maximum accuracy select from a diverse range of inline flowmeters.