ToFD & HTHA Transducers
Sonatest manufacture a complete range of high performance, high technology ultrasonic (UT) and phased array (PA) transducers for flaw detection and thickness measurement applications.
ToFD Frequently Asked Questions
ToFD, or Time of Flight Diffraction, relies on the tip diffractions created when an ultrasonic wave interacts with a discontinuity in the test material. ToFD utilises two ultrasonic transducers in a pitch-catch setup with one acting as the transmit Tx and the other as the receiver Rx. an ultrasonic pulse is transmitted into the sample and the signals displayed in order of the time taken to reach the Rx, any defect tip diffracted signals will be displayed in the final scan.
Our ToFD probes have a normal operating temperature of 0°C to 50°C, high temperature versions of the ToFD wedges are available on request. Our sales team can assist in finding the correct high temperature solution for your application.
ToFD technology offers enhanced imaging capabilities and flexibility over conventional ultrasonics. created for the nuclear industry, ToFD provides great sensitivity to defects of any orientation and produces high accuracy in sizing. Fully integrated into our Veo3, facilitates detailed inspections, and contributes significantly to efficient user operations.
Sonatest provides a range of options for ToFD transducers and wedges for a range of applications to ensure they meet the specific requirements of various testing environments.