Contact
In an attempt to divert a tsunami of spam, I've disabled the main contact page for anonymous users. In order to use the contact form please login or register for a new account.
Accounts will only be activated after review, which will consider your email address (business or academic emails are preferred over free emails commonly used by spammers) and the other information entered. If you only have access to a free email address but you do have a genuine interest in ultrasonics please include details or your account may remain locked indefinitely.