Invention Grant
- Patent Title: Detection of defects using resonant ultrasound spectroscopy at predicted high order modes
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Application No.: US520009Application Date: 1995-08-23
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Publication No.: US5837896APublication Date: 1998-11-17
- Inventor: George Rhodes , James J. Schwarz , David E. Thomas , Ming Lei
- Applicant: George Rhodes , James J. Schwarz , David E. Thomas , Ming Lei
- Applicant Address: NM Albuquerque
- Assignee: Quasar International
- Current Assignee: Quasar International
- Current Assignee Address: NM Albuquerque
- Main IPC: G01N29/34
- IPC: G01N29/34 ; G01N29/44 ; G01N29/12
Abstract:
Methods for the prediction of the frequency of high order resonant ultrasound spectroscopy (RUS) diagnostic modes are used to limit the band width of diagnostic testing at high order mode frequencies. Testing of parts at low order frequency modes is used to calculate part dimensions, and then these calculated part dimensions are used to predict high order diagnostic mode frequencies. Lower order mode frequencies are used to predict high order diagnostic mode frequencies.
Public/Granted literature
- US5136144A Depository apparatus for envelopes and single sheets Public/Granted day:1992-08-04
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