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.
Re: High frequency transducer with calibrated surface displacementIn Reply to Marvin Klein at 19:46 Jan-21-2009 (Opening).
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.