Covance

In 1978, Bell Labs scientist, Dr. Sotirios J. Vahaviolos and venture capitalists Frederick Adler and Milton Pappas founded Physical Acoustics Corporation. The company has grown internally and by the acquisitions of Trodyne Corporation, founded in 1969, in 1980, and Dunegan Corporation, founded in 1968, in 1985. Physical Acoustics Corporation designs and manufactures acoustic emission sensors and acoustic emission measurement instruments under a quality program which is certified to ISO 9001 standards. The company has more than thirty-five years of experience in sensor research and acoustic emission test data experience in applications such as pressure vessel testing, pipeline monitoring, railroad tank cars, high pressure tubes and tube trailers, concrete, aging aircraft, tank bottoms, weld monitoring, bearing and valve monitoring, composite materials testing and defect detection and localization.