Signal processing apparatus for ultrasonic flaw detection system
US6016700A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1997 |
| Grant date | Jan 25, 2000 |
| Priority date | — |
| Expiry date | Oct 29, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/044
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus (10) for processing a return waveform generated by directing an ultrasonic pulse at an object (S) under test. A signal converter (12) converts the return waveform from an analog to a digital signal. The analog-to-digital conversion rate is approximately four times the operating frequency of the ultrasonic pulse. A signal processor includes a plurality of digital signal processors (14,16,18) each of which is separately controllable to process the converted digital signal. A communications network (20) directs the analog signal, converted digital signal, and an output signal from the signal processor to a visual display (28) and to various peripheral equipment (A1,A2) connected to the apparatus. A process controller (22) controls routing of these signals to and from the signal processor over the communication network. By processing a return waveform, peak amplitude values representing flaws or imperfections in the object can be determined and the processed waveform, including peak values, displayed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.