Invitation : IEEE Milestone Dedication Ceremony

October 21, 2020 | Contributed By - Sidney Lang, History Chair
The IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society cordially invites you
to join them virtually on 5 November at 11:00 am EST for the dedication of the IEEE Milestone in remembrance of the accomplishments of
WALTER GUYTON CADY
PIEZOELECTRIC QUARTZ RESONATOR, 1921-1923
In 1921, research at Wesleyan led to development of the first circuit to control frequencies based on a quartz crystal resonator. This technique was later applied in standards of frequency as a filter and for coupling between circuits. Piezoelectric quartz oscillators advanced ultrasonics, sonar, radar, and myriads of other electronic applications. They appeared in everyday life through their use in quartz wristwatches.The plaque will be placed at Wesleyan University, Middletown, CT where Cady did his research.

Last updated On: October 22, 2020