ACCURACY ENHANCEMENT OF A COMBINED V/Z CLAMP-ON ULTRASONIC FLOW

• Abstract:

  Ultrasonic flow metering with clamp-on type transducers is a promising method when portability in flow metering is necessary. Nevertheless, the clamp-on ultrasonic flow meter has low measurement accuracy as flow speed in the pipe decreases. If the two types of clamp-on ultrasonic flow paths, namely, Z-shaped and V-shaped ultrasonic paths, are combined, measurement accuracy can be increased because the metering output becomes robust. In the present study, the measurement accuracy of the combined clamp-on ultrasonic flow meter was within ±2 % at 50 m³/h, which was smaller than those of the Z-shaped and the V-shaped clamp-on ultrasonic flow meters at the same flow rate. This can provide an advantage for water resource management because a general guideline for the water resource management is less than ±2 %.
• Keywords:

  clamp-on ultrasonic flow meter, V-shaped, Z-shaped
• Download:

  IMEKO-TC9-2013-083.pdf
• DOI:

  _unreg_tc9-2013.083

Event details:

• IMEKO TC:

  TC9
• Event name:

  FLOMEKO 2013
• Title:

  16th International Flow Measurement Conference

• Place:

  Paris, FRANCE
• Time:

  24 September 2013 - 26 September 2013