Profile: Airstar Inc. manufactures ultrasonic instruments and scanning systems. We develop and design digital instrumentation & systems for automated testing of advanced materials, such as composites & honeycomb sandwiches, highly attenuating materials, such as pultruded materials, wood, concrete & rubber (tires). Our ultrasonic equipment includes laser thickness sensors, transducers, encoder cards, infrared temperature sensors, single, two, 12 and 16 channels air coupled instruments. We also assemble c-scan scanning systems, blow detectors, air-coupled ultrasound and acousto-ultrasonics. Our c-scan scanning system combines the ultrasonic pulser with the motion control & data acquisition by using the same bus. Air-coupled ultrasonic is a non-contact technique used in non-destructive testing of larger areas where the application of plate waves covers long distances and absence of water columns allows for high scan velocities.