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    • 3. 发明申请
    • HANDHELD MEDICAL MICROWAVE RADIOMETER
    • 手持式医用微波辐射计
    • WO2012015539A3
    • 2012-04-19
    • PCT/US2011040455
    • 2011-06-15
    • WELCH ALLYN INCSTERZER FREDMAWHINNEY DANIEL DRABIEIRAD LALEHQUINN DAVID ELANE JOHN AMULLIN MATTHEW DSTEWART CHARLES N
    • STERZER FREDMAWHINNEY DANIEL DRABIEIRAD LALEHQUINN DAVID ELANE JOHN AMULLIN MATTHEW DSTEWART CHARLES N
    • A61B5/01
    • A61B5/01
    • A microwave handheld radiometer for measuring subsurface tissue temperature of a subject includes a microwave antenna disposed relative to a handheld radiometer housing and adapted to electromagnetically couple to a skin surface of a subject, a circulator having a first circulator input and a second circulator input, wherein the first circulator input is electrically coupled to said antenna via a microwave feedline. A switch is electrically disposed between the antenna and an microwave feedline, said switch having a calibrate state and a measure state. A noise source, electrically coupled to the circulator, is being configured to provide a first source of thermal noise at a first temperature and a second source of thermal noise at a second temperature, wherein the noise source is switched between the first source and second source upon external command wherein a detector provides an output wherein surface temperature effects are corrected for in the sub-surface measurement.
    • 用于测量受试者的地下组织温度的微波手持式辐射计包括相对于手持式辐射计壳体布置并适于电磁耦合到受试者的皮肤表面的微波天线,具有第一循环器输入和第二循环器输入的循环器,其中 第一循环器输入通过微波馈线电耦合到所述天线。 开关电气地设置在天线和微波馈线之间,所述开关具有校准状态和测量状态。 电耦合到环行器的噪声源被配置成在第二温度下在第一温度和第二热噪声源处提供第一热噪声源,其中噪声源在第一源极和第二源之间切换 其中检测器提供输出,其中表面温度效应在子表面测量中被校正。