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GRANPECT COMPANY Ltd
GRANPECT, X-ray NDT Expert You Can Rely on

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19:46 Jan-21-2009

Marvin Klein

Director, -
Intelligent Optical Systems,
USA,
Joined Nov 1998
3
High frequency transducer with calibrated surface displacement

In order to calibrate an optical interferometer, I am looking for a transducer or other source with a known surface displacement (or velocity) when driven at a single frequency. The frequency range of interest is 20-150 MHz and eventually to 1 GHz. Resonant transducers at fixed frequencies would be OK. A small thin film device would be fine, as we can focus to a ~100 um spot.


    
 
23:07 Jan-24-2009
Elmar van den Elzen
Re: High frequency transducer with calibrated surface displacement In Reply to Marvin Klein at 19:46 Jan-21-2009 (Opening).

Dear Marvin,

Precision Acoustics in the UK makes special hydrophones and ultrasound transducers for medical, NDT and scientific applications. They might be able to help you. Check out their web-site http://www.acoustics.co.uk/home.

Good luck, Elmar


    
 
11:48 Jan-26-2009

Gerhard Splitt

R & D, -
Private,
Germany,
Joined Nov 1998
38
Re: High frequency transducer with calibrated surface displacement In Reply to Marvin Klein at 19:46 Jan-21-2009 (Opening).

Hi Marvin,

an alternative supplier could be Force Technology in Denmark, They are offering calibrated hydrophones; see http://www.force-institute.dk

Good luck,
Gerhard


    
 


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