Ultrasonic process tomography using multiple active sensors for maximum real-time performance

✍ Scribed by W. Li; B.S. Hoyle

• Book ID: 104107671
• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 920 KB
• Volume: 52
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/s0009-2509(97)00042-0

✦ Synopsis

The paper reviews the background limitations of ultrasonic process tomography which impinge upon real-time performance: the complex sound field sensed by transducers often resulting in overlapped, or multiple reflected pulses which introduce errors; and the inherent slow propagation speed of ultrasound. A novel spectral analysis strategy is presented, which examines the phase information of transducer signals enabling the location of overlapping pulses. This is illustrated using a computer simulation which indicates that real-time data acquisition performance can be improved through a reduction in the number of transducers employed, and further has the potential to allow multiple transducers to transmit simultaneously.