Professor Richard Dewhurst BSc, PhD, DSc
CPhys, CEng, FInstP, FInstNDT
Richard Dewhurst has been Professor of Instrumentation, with research in the area of measurement science and technology. Activities have included the development of sensor systems using laser-generated ultrasound, ultrasound and related instrumentation, and the development of optical sensing systems. A range of techniques have been exploited. They have included optical scattering and absorption phenomena, optical or ultrasonic spectroscopy and ultrasonic imaging methods. From these studies, new materials characterisation have been performed in solids, liquids and soft tissue; with applications to the non-destructive evaluation (NDE) of materials. He is best known for his work in laser ultrasound. In the 1980s, his research group pioneered quantitative measurements in laser-generated ultrasound. Studies at first concentrated on laser ultrasound in opaque solids. These measurements, together with associated modelling, were the knowledge base that was a pre-requisite for much of the international research activity in laser-ultrasound that has continued to the present time, with significant applications in the aerospace industry. The field has developed from a scientific curiosity to an engineering measurement technology. His interests are focused on measurement techniques for non-destructive evaluation (NDE). They offer new approaches to the characterisation of materials, and include research into miniaturised instrumentation for near-infrared spectroscopic measurements, and photoacoustics for potential healthcare applications. His group was the first to show that transient photoacoustics may be used to assess post-mortem arterial disease, with the potential of the technique to go in vivo by exploiting miniaturised probes. In ophthalmic measurements, metrology of the eye has been demonstrated with both porcine and bovine eyes. Photoacoustic skin tissue measurements have been undertaken, with measurements mainly in phantoms. Signal and image processing plays a significant role in evaluation processes. Systems have exploited signal processing and image processing, such as the generation of B- , C- and D-scans to aid interpretation of defects or disease. Synthetic focusing aperture techniques (SAFT) and (F-SAFT) have been developed to enhance image resolution. He was a founding member of the DTI M62 Sensors and Control Club, and has been both a Council Member of the British Institute of NDT, and of the Institute of Physics. He is a Fellow of the Institute of Physics, a Fellow of the British Instutute of NDT, and a College Member of EPSRC. Within the Institute of Physics, he is a member of the Materials and Characteristion Group where for two periods of office he has served as Chairman. He is presently the European and Reviews Editor of the international academic journal, Measurement Science and Technology (MST), published by the Institute of Physics. In 1994, he won an award for Best Paper from the American Society for Non-destructive Testing (NDT); and in 1999 was awarded a similar prize from the Institute of Measurement and Control, UK. In 2003, he was awarded the highest ranking Prize, the Roy Sharpe Prize, from the British Institute of NDT for his research work on non-contact NDT, and for his involvement in the research of laser generation and detection of ultrasound. More recently, in 2005, he was part of a five-man UK EPSRC delegation to China to initiate research collaborations into non-destructive evaluation (NDE). From 2004-2007, he served on Program Committee for the Biomedical Optics Conference held in San Jose, organised by SPIE. In 2008, he served on the Scientific Advisory Committee for the first International Conference on Laser-Ultrasound, held in Montreal. He has now retired to become Emeritus Professor at the University of Manchester.