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

AI Thread Summary
Tuning fork crystals exhibit a negative parabolic temperature coefficient due to a combination of factors including the material properties, the specific crystal cut, and the mounting technique. The unique characteristics of the crystal structure influence how temperature variations affect frequency stability. Understanding the physics behind this phenomenon is essential for optimizing crystal performance in various applications. The provided link offers further insights into the topic. The discussion emphasizes the importance of these elements in determining the temperature coefficient behavior of tuning fork crystals.
Troyvm
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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
 
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