The proposal for this new measurement setup is motivated by curiosity in transients propagating across arched tops of violins. Understanding the impact of edge construction on transient wave reflection back to the top of a violin or on conduction into the rib requires single-shot recordings possibly without statistical processing. Signal-to-noise ratio should be high although mechanical amplitudes at distinct locations on the structure surface are in the range of a few micrometers only. In the proposed setup, the intensity of a laser beam is directly measured after passing a screen attached to the device under test. The signal-to-noise ratio achieved for one micrometer transients in single-shot recordings is significantly more than 60 dB.

Authors: Mores, Robert; Thor Straten, Marcel; Selk, Andreas
Affiliations: Seevetal, Germany; Hamburg University of Applied Sciences, Hamburg, Germany(See document for exact affiliation information.)
AES Convention: 126 (May 2009) Paper Number: 7815
Publication Date: May 1, 2009 Import into BibTeX
Subject: Signal Analysis, Measurements, Restoration
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=15011

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD 126Papers)   /126/7815.pdf

Start a discussion about this paper!