Non-contact calibration technique of ultrasound tomography system for complex shaped objects

Abstract

Abstract. Robot-assisted ultrasound tomography is an up-to-date technology that provides effective quality assurance of complex shaped objects. However, this method of control requires appropriate calibration of the equipment. At present, calibration is a difficult timeconsuming procedure. This paper discusses novel approach -using non-contact calibration technique. The proposed method is based on the preliminary received 3-D reconstruction results. It is proved that non-contact calibration of ultrasound tomography system is more applicable and provides reliable measurement results.

Frequency-domain imaging algorithm for ultrasonic testing by application of matrix phased arrays

“…However, the calibration of these systems is quite challenging. In our previous research we suggest a novel approach of noncontact calibration that can be implemented for this purpose [7,8].…”