Patent ID: 11953485
Assignee: TRUSTEES OF DARTMOUTH COLLEGE
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. A system for non-invasive microwave testing a bottle of wine, comprising:
an emission probe for emitting a microwave signal through a wall of the bottle into the wine; and
a detection probe for receiving at least a portion of the microwave signal from the wine via the wall;
the emission probe and the detection probe being identical and interchangeable;
each of the emission probe and the detection probe being a coaxial probe that includes:
a curved end face; and
a tapered coaxial transmission line leading to the curved end face, diameter of the tapered coaxial transmission line increasing in direction toward the curved end face;
the emission probe and the detection probe being integrated in a common dual-coaxial probe assembly including:
a conductive block having a cylindrical surface and forming two conical channels between the cylindrical surface and a back surface opposite the cylindrical surface, diameter of each of the channels increasing from the back surface to the cylindrical surface;
in a first one of the conical channels, a first center conductor and a first insulator separating the first center conductor from the conductive block, the first center conductor and the first insulator cooperating with the conductive block and its cylindrical surface to form the emission probe; and
in a second one of the conical channels, a second center conductor and a second insulator separating the second center conductor from the conductive block, the second center conductor and the second insulator cooperating with the conductive block and its cylindrical surface to form the detection probe.