Peak visualization enhancement display system for use with a compressed waveform display on a non-destructive inspection instrument

US8421802B2 · kind B2 · utility

Assignee

• OLYMPUS NDT, INC. · US

Inventors

• Andrew Thomas · Westford, US
• Steven Besser · Framingham, US
• Daniel Kass · Portland, US
• Erich Henjes · Newton, US
• Ehab Ghabour · Northborough, US
• Marc Dulac · Dracut, US
• Paul Joseph DeAngelo · Bridgewater, US

Key dates

• Filing date: Mar 6, 2009
• Grant date: Apr 16, 2013
• Expiry date: Feb 15, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F2218/14
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A peak visualization enhancement system for use with a non-destructive inspection (NDI) instrument using a digital display which replicates the haloing effect of analog cathode ray tube (CRT) displays. A peak detection algorithm is provided which intelligently selects the peak values from within the uncompressed digitized waveform while taking measures to prevent noise spikes and the like from being identified as valid waveform peaks. The digital display then highlights the identified peaks, or a subset of the identified peaks, on the compressed waveform display. In this way the effect of bright spots (halos) about the zero slope points on a waveform displayed on an analog CRT is replicated in a digitally compressed waveform display.