clamp-on ultrasonic transducer
clamp-on ultrasonic transducer
(OP)
Hi everyone. Thanks for this wonderful forum and all your valuable contributions.
To my question ---> I would like to know why clamp-on ultrasonic transducers (the ones that are used for flow measurment in pipes) come with a piezo crystal on a wedge instead of directly mounting it on to the pipe.
Is it to do with acoustic matching ? 1/4 wavelength theory? I am not very certain so was wondering if anyone knew at all about it.
Thanks in advance
To my question ---> I would like to know why clamp-on ultrasonic transducers (the ones that are used for flow measurment in pipes) come with a piezo crystal on a wedge instead of directly mounting it on to the pipe.
Is it to do with acoustic matching ? 1/4 wavelength theory? I am not very certain so was wondering if anyone knew at all about it.
Thanks in advance





RE: clamp-on ultrasonic transducer
The built-in version has transducers placed by machine tools and predictable transit times through their pressure containment, but you have to modify piping to install them.
As always with measurement, you have to balance system disruption and cost against accuracy and repeatibability.
David Simpson, PE
MuleShoe Engineering
www.muleshoe-eng.com
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
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