Development of deep body temperature measurement system using ferrite implantation technique

利用铁氧体注入技术开发深部体温测量系统

• 批准号: 62870097
• 负责人: SAITO Masao
• 金额: $ 1.92万
• 依托单位: University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1987
• 资助国家: 日本
• 起止时间: 1987 至 1988
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-62870097/
• 关键词: Temperature measurement; Implantation technique; Hyperthermia; ferrite; キュリー点

The aim of this study is to develop a method of measuring temperature inside the human body using the sudden change in the magentic characteristic of ferrite caused by temperature rise across its Curie point. A prototype system was designed for basic exeperiments. For the present. A ferrite core whose Curie point temperature was 50 ゜C was used for the inductance, of which a resonant circuit was composed together with a capacitor. The resonant frequency changing suddenly at the Curie point temperarue. The voltage across the indactance went down to its minimum, in case it was excited by the fixed H.F. signal of the initial resonant frequency. It was shown by the experiments using phantom, that the directly measured temperature at the Curie point agreed with the preset temperature of 50 ゜C with the accuracy of 0.2 ゜C.

本研究的目的是开发一种利用铁氧体的居里点温度升高引起的磁特性突然变化来测量人体内部温度的方法。为基本实验设计了原型系统。就目前而言。电感使用居里点温度为50℃的铁氧体磁芯，与电容器一起构成谐振电路。谐振频率在居里点温度处突然变化。如果电感被初始谐振频率的固定高频信号激励，则电感两端的电压会降至最小值。通过模型实验表明，直接测量的居里点温度与预设温度50℃吻合，精度为0.2℃。

项目成果

浜田君彦: 第27回日本ME学会.

滨田公彦：第 27 届日本 ME 协会。

斎藤正男: "温度測定技術 放射線医学大系" 中山書店, 8 (1987)

齐藤正夫：《温度测量技术-放射线医学》中山书店，8（1987）

Kimihiko,Hamada: "Measurement of temperature inside body with thermo-sensor ferrite" Proc. 27th Conf. Jap. Soc. MEBE. (1989)

Kimihiko，Hamada：“用热传感器铁氧体测量体内温度”Proc。

斎藤正男: "温度測定技術 放射線医学大系" 中山書店, 83-90 (1987)

齐藤正雄：《温度测量技术-放射线医学》中山书店，83-90（1987）