公开(公告)号：EP0401207A4

公开(公告)日：1992-01-08

申请号：EP88901515

申请日：1987-12-24

Applicant: M/A-COM, INC.

Inventor： CARR, KENNETH, L.

IPC: G01J5/46 ,  A23L3/01 ,  A61L2/12 ,  A61L2/24 ,  G01J5/00 ,  H05B6/68 ,  H05B6/80 ,  A61F7/12 ,  A61N5/02 ,  H05B6/64

CPC classification number: A61L2/24 ,  A23L3/01 ,  A61L2/12 ,  H05B6/80 ,  H05B2206/045

Abstract: A non-invasive temperature monitoring apparatus used in association with a guided wave means (17, 18) that may be for the purpose of sterilization and that is adapted for microwave heating of a substance that is absorptive at microwave frequencies and that is held in some type of means that is transparent at microwave frequencies. The apparatus comprises a length of waveguide (40). A coupling aperture (42) is defined in the guided wave means (17). The length of waveguide (40) is supported with one end (44) thereof about the coupling aperture (42). A microwave radiometer (54) detection circuit is also coupled from the length of waveguide (40) for detecting on a continuing basis the temperature of the substance which is usually liquid being heated by the microwave energy.