Pressure detection of hermetically sealed device

An apparatus, comprising:

• a signal module, configured to control generation of a reflected radio wave within an interior cavity of a hermetically sealed device;
• a resonance frequency module, configured to determine a resonance frequency of the interior cavity of the hermetically sealed device based on, at least partially, the reflected radio wave;
• and
• a pressure module, configured to determine a pressure of a gas contained within the interior cavity of the hermetically sealed device based on, at least partially, the resonance frequency of the interior cavity of the hermetically sealed device,
• wherein each of the signal module, the resonance frequency module, and the pressure module comprises one or more of logic hardware or executable code, the executable code being stored on one or more non-transitory machine-readable storage media of the apparatus.

An apparatus, comprising:

• a signal means for controlling generation of a reflected radio wave within an interior cavity of a hermetically sealed device;
• a resonance frequency means for determining a resonance frequency of the interior cavity of the hermetically sealed device based on, at least partially, the reflected radio wave;
• and
• a pressure means for determining a pressure of a gas contained within the interior cavity of the hermetically sealed device based on, at least partially, the resonance frequency of the interior cavity of the hermetically sealed device.