Patent ID: 9417048
Filing Date: 2016-08-16
CPC Classification: G01B

Claim Text:
1. A capacitive sensor device comprising: at least one sensor tip comprising an electrode positioned at a first end of said at least one sensor tip, and a stem member coupled to said electrode and extending toward a second end of said at least one sensor tip; a coaxial cable comprising a center conductor, the center conductor coupled to said at least one sensor tip at the second end, wherein said center conductor is coupled to an inner surface of said at least one sensor tip through a hollow recess in the second end of said at least one sensor tip using a weld joint, and wherein said hollow recess is defined along an axial length of said stem member; an insulation layer supporting said at least one sensor tip between the first and second ends, said insulation layer including a metallization on a portion surrounding the second end of said at least one sensor tip; and a casing surrounding a portion of said coaxial cable, the metallization of said insulation layer, and the coupling of said center conductor and said at least one sensor tip, wherein a braze joint is formed between said casing and the metallization to form a hollow, hermetic cavity.