Patent · US Expired

Detection of defects using resonant ultrasound spectroscopy at predicted high order modes

US5837896A · kind A · utility

18Cited by
4References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 23, 1995
Grant dateNov 17, 1998
Priority date
Expiry dateAug 23, 2015

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N29/348
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.