Cryogenic geophone with constant response between room temperature and temperatures close to absolute zero

The patented invention relates to the field of vibration measurement using an inertial detector. In particular, the patent addresses the modifications to be made to a commercial geophone to ensure that its operation and response remain constant over a temperature range from room temperature to temperatures close to absolute zero.

How does it work?

The patented technology concerns a cryogenic geophone that has a constant response between room temperature and temperatures close to absolute zero. The underlying idea of the technology is to make modifications to the mechanics and materials of a commercial geophone, so that it can function properly at cryogenic temperatures. More specifically, the idea consists of creating a device that can operate with a natural frequency where the sensitivity of commercial cryogenic accelerometers is minimal.

Through this patented technology, it is therefore possible to obtain an apparatus having the same structure as a commercial geophone, but which operates consistently at temperatures close to absolute zero.

Applications

• Ultra-cryogenic applications;
• Aerospace sector;
• Superconducting technologies;
• Nuclear industry;
• Telecommunications;
• Research and Development.

Advantages

• Ability to turn the magnetic field on and off at will;
• Compatibility with other instrumentation;
• Constant response over time at cryogenic temperatures;
• Simplicity of implementation;
• High instrument sensitivity.