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- since 1996 -

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Technical Discussions
Marvin Klein
Director, -
Intelligent Optical Systems, USA, Joined Nov 1998, 3

Marvin Klein

Director, -
Intelligent Optical Systems,
USA,
Joined Nov 1998
3
19:46 Jan-21-2009
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.

    
 
 Reply 
 
Elmar van den Elzen
Elmar van den Elzen
23:07 Jan-24-2009
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

    
 
 Reply 
 
Gerhard Splitt
R & D, -
Private, Germany, Joined Nov 1998, 38

Gerhard Splitt

R & D, -
Private,
Germany,
Joined Nov 1998
38
11:48 Jan-26-2009
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

    
 
 Reply 
 

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