Patent attributes
A new and improved piezoelectric device package that can withstand pressures of at least 25,000 psi, high temperatures of at least 300° C., as well as acidic and caustic environments, such as often encountered in oil and gas wells. The package is comprised of a hermetically sealed piezoelectric device header with an internal cavity for mounting various types of piezoelectric devices, an impedance matching network, an antenna, and a protective radome outer cover. The internal structure of the device package is for the most part solid with the exception of an approximate 1-micron space above the surface of the piezoelectric device to allow acoustic waves a path to travel. The general shape of the piezoelectric device package is typically that of a round disk that can be installed and secured by attaching fingers or other means in a bored cavity of a tool, pipe, or other piece of equipment.
