Acquisition of Krautkramer, a producer of ultrasonic systems for non-destructive testing.

VisualSonics was founded in 1999 by medical physicist Dr. Stuart Foster, who has been involved in the development of high-frequency ultrasonic systems since 1983.

The ultrasonic systems used in medical ultrasonography employ piezoelectric transducers.

Even though this experiment clearly demonstrated the potential to reproduce audio signals using an ultrasonic system, it also showed that the system suffered from heavy distortion, especially when no precompensation was used.

Willie fixed an infra-red modification on the ultrasonic system when he rigged the alarms.

AEA's contribution included the ultrasonic systems, data transmission and associated software.

The measurement capability shares many similarities to that observed with pulsed ultrasonic systems.

Until recently ultrasonic systems were used for cleaning, cutting, the welding of plastics, and in medical therapy.

The company designs and manufactures ultrasonic and air-pollution systems for medical, scientific and industrial use.

As for the security measures, the whole building is furnished with closed-circuit TV, ultrasonic and firealarm systems for controlling all parts of the museum.