Walter Guyton Cady

He was a magnetic observer from 1900 to 1902 with the United States Coast and Geodetic Survey, and from 1902 to 1946 he was a professor of physics at Wesleyan University, where his principal interests included electrical discharges in gases, piezoelectricity, ultrasound, piezoelectric resonators and oscillators, and crystal devices.Before World War I, Cady investigated arc discharges and radio detectors, but during the war became interested in crystals as he worked with General Electric Company's Research Laboratory, Columbia University, and the Naval Experimental Station in New London, Connecticut, on using high-frequency sound generated by piezoelectricity to detect submarines.[5] During World War II, Cady again worked on military applications of piezoelectricity, including trainers for radar operators that used piezoelectric transducers in liquid tanks to generate realistic radar returns.[6] He won the 1928 IEEE Morris N. Liebmann Memorial Award, and in 1936 was the second American to receive the Duddell Medal and Prize of the Physical Society of London.His papers are archived at the Smithsonian Institution and the Rhode Island Historical Society.
Providence, Rhode IslandEast Providence, Rhode IslandAmericanBrown UniversityJohn Hutchins CadyPhysicsphysicistelectrical engineerpiezoelectricitycrystal oscillatorUniversity of BerlinUnited States Coast and Geodetic SurveyWesleyan UniversityultrasoundWorld War IGeneral Electric CompanyColumbia UniversityNew London, ConnecticutsubmarinesRochelle saltfrequency standardsFranceEnglandUnited StatesInstitute of Radio EngineersPasadena, Californiacrystal filterferroelectricityIEEE Morris N. Liebmann Memorial AwardDuddell Medal and PrizePhysical Society of LondonSmithsonian InstitutionRhode Island Historical SocietyMason, Warren P.