NDT-net (Rolf Diederichs) (Popularity: ): UT-Encyclopedia Vibrationdata.com Tutorials (Popularity: ): The tutorials and course materials require a username and password which can be obtained with an annual subscription fee. Ultrasonics (Popularity: ): Dedicated to the art and science of ultrasonic nondestructive testing and allied fields. Acoustical Standards (Popularity: ): Acoustical Society of America Nondestructive Material Testing with Ultrasonics (Popularity: ): Introduction to the Basic Principles (Krautkrämer, NDt-net) Piezo Solutions (Popularity: ): an Engineering and Manufacturing Consulting Service which assists companies who manufacture and utilize piezoelectric ceramic elements in their products to improve performance, yield, quality and reliability. Cavitation energy meter (ppb, Inc.) (Popularity: ): Meters energy and frequency in ultrasonic and megasonic cleaning tanks used in the semiconductor, wafer, disk drive, flat-panel display, electronics and parts precision cleaning industries. Ultrasonic Blaster (Popularity: ): sonic shockwaves Ultrasonic/Contact Stethoscope (Popularity: ): The 2047U/C combines the features of a standard electronic stethoscope - with those of an ultrasonic (sounds higher in frequency than the ear can hear) detector. Thin Film Ultrasonic Transducer for Accurate Control of Fastener Clamp Load (Popularity: ): NASA (USA)
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