Why Do Tuning Fork Crystals Have a Negative Parabolic Temperature Coefficient?

Troyvm · Apr 18, 2018

I would like to understand the reason that tuning fork crystals have the negative parabolic temperature coefficient shape. Is it the material, the crystal cut or how its mounted. What is the physics behind that.

Thank you

Tom.G · Apr 18, 2018

Crystal cut.
See: http://leapsecond.com/hpan/an200-2.pdf

Tom.G · Apr 19, 2018

Corrected link in previous post (I hope): http://leapsecond.com/hpan/an200-2.pdf

Why Do Tuning Fork Crystals Have a Negative Parabolic Temperature Coefficient?

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