Milestone-Proposal talk:Invention of Temparature- Insensitive Quartz Oscillation Plate Enabling HIghly Stable Communications and Clocks, 1933
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Comments and modification to citation -- Enrique Tejera (talk) 14:01, 29 April 2016 (CDT)
I am the advocate for the proposed milestone Temperature-Insensitive Quartz Oscillation, 1933. I have revised all the material included in the proposal and found it complete with the technical merits to be accepted as an IEEE Milestone.
During the revision I have been able to check on the material submitted and the conflicts that may be with other developments related to the topic, but the submitted data shows enough to prove the validity of the proposed milestone.
Regarding citation and trying to make it readable for everybody, here is a suggestion to modify it:
Invention of Temperature-Insensitive Quartz Oscillation Plate, 1933
In April 1933, Issac Koga of the Tokyo Institute of Technology discovered cutting angles that produced quartz crystal plates having a zero temperature coefficient of frequency. These angles, 54⁰ 45’ and 137⁰ 59’, he named the R1 and R2 cuts. Temperature-insensitive quartz crystal was used at first for radio transmitters and later for clocks, and has proven indispensable to all radio communication systems and much of information electronics.
Regards,
Enrique Tejera
