MISTRAS offers an extensive and comprehensive line of transducers, which interface with all UT products and system applications to produce the highest quality testing and results.
Transducers are connected to any type of diagnostic product or system and passed over the tested object. In the majority of cases, the use of couplant (either as water or an emolument application) increases the efficiency of the testing and the accuracy of the results. MISTRAS transducers work in either pulse-echo or through-transmission modes.
Whether it's contact or immersion; dual-element or annular, MISTRAS has the right transducer for your UT testing needs. Our transducer product line is entirely commercially available and is offered in such classifications as:
Contact (straight or angle beam)
A MISTRAS contact transducer comes in straight or angle beam capabilities, with a range of 1-25 MHz in either general purpose or high-resolution classifications. As its name suggests, these are placed directly onto the tested material with the use of an applied couplant. Contact sensors work in conjunction with a variety of UT testing equipment like the Pocket UT™, the Tablet UT™, and more. Focus lenses are available to add to any contact transducer.
Non-Contact/Air Coupled UT transducers can be used to test and analyze virtually any material in which ultrasound can be transmitted, without the need for contact or a water coupling medium. Two transducers are required as they operate in thru transmission or pitch/catch modes. Materials such as cured and uncured composites, plastics, rubber; green ceramics, powdered metals, and other consolidated materials, porous and liquid sensitive materials; wood, lumber, and concrete. There are numerous other applications and advantages of non-contact ultrasound. These sensors work with all immersion systems and Pocket NDT systems.
Immersion (flat or focused)
Immersion transducers, either flat or focused, are used in standard and custom UltraPAC immersion UT systems. With a range of 1-100 MHz and general purpose or high-resolution classification, the only couplant immersion transducers require is water. Immersion transducers work in conjunction with scanners like the LSI™, motorized X-Y, and Z-Gimbal, and with immersion scanning system accessories like Bubble/Squirter assemblies and/or wear shoes.
These advanced pieces are actually two transducers made within a single lodging, with each side isolated from the other electrically and acoustically. They're designed for detection of near-surface discontinuities and thin-wall sections. And their small size makes them ideal for limited access or small work areas. Dual element transducers coincide with any scanner in the MISTRAS product line, adding versatility to their already impressive roster of capabilities.
MISTRAS' annular transducers work with a variety of advanced scanners, including the LSI™ and Remote Ethernet UT module. Annular transducers have an array of piezoelectric elements that are especially useful on curved or circular test surfaces because they allow ultrasonic pulses to be focused in two dimensions.