Development of Non-contact Thermal Monitor Using Fiber Optics

使用光纤的非接触式热监控器的开发

• 批准号: 63840025
• 负责人: HAGA Nobuhiko
• 金额: $ 2.24万
• 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: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-63840025/
• 关键词: Fiber Optics; Thermal Monitor; Gas Stream Heater; High Temperature; X-ray Diffraction; Microtexture; 二色式放射温度計; 高温X線回折; 高温単結晶解析; 単結晶用ヒーター; 二色式温度計

It was the first purpose to plan and to manufacture the miniature electric resistance furnace for single crystal diffractometer and the non-contact temperature measuring system. For the miniature electric resistance furnace, the hot gas stream furnace was made instead of electric one, because of the very poor space around the specimen on the goniometer. This can blow out hot gas up to 800ﾟC. The temperature was controlled by changing electric voltage or gas pressure with thermally monitoring. Gas cylinder or air compressor serves as source of gas.The temperature measuring system is characterized by the fiber optics cable connected to the detector head, and the emissivity independent for greybody target by applying the "band ratio method". This system is composed of following three principal parts. One is optical fiber assembly attached with the micro spot lens cell which has spot diameter 0.5mm and working distance 50mm. Fiber is flexible and the radius of curvature is 2". Second part is the detector head assembly, which contains the lead sulfide band filter, tuning-fork chopper and preamplifier. This enable to measure temperature during 700-1,510ﾟC. Detector head assembly is connected by cable to the panel controller. On front panel there are power switch, digital panel meter, gain controls, spectrum control and so on, and there is input/output connections on rear panel. The calibration source and backlighting source are equipped.High temperature single crystal diffraction study of ferroelastic material, LaP_5O_<14>, was planned as test experiment, only room temperature experiment has been done.

设计和制造用于单晶衍射仪和非接触式测温系统的微型电阻炉是第一个目的。对于微型电阻炉，由于测角仪上试样周围空间狭小，采用热气流炉代替电炉。这可以吹出高达800ºC的热气。通过改变电压或气体压力来控制温度，并进行热监测。气瓶或空气压缩机作为气源。该温度测量系统的特点是采用光纤电缆连接到探测器头部，采用“带比法”对灰体目标的发射率无关。本系统由以下三个主要部分组成。一种是附着微光斑透镜单元的光纤组件，光斑直径0.5mm，工作距离50mm。光纤具有柔韧性，曲率半径为2”。第二部分是探测器头组件，包括硫化铅带滤波器、音叉斩波器和前置放大器。这使得测量温度在700-1,510 <s:1>℃。探测器头组件通过电缆连接到面板控制器。前面板上有电源开关、数字面板仪表、增益控制、频谱控制等，后面板上有输入/输出连接。配备校准光源和背光光源。铁弹性材料LaP_5O_<14>的高温单晶衍射研究计划作为测试实验，只做了室温实验。

项目成果

E.Chiba: "Structures of methylphenylhydrazone derivatives and their nonlinear optical properties." Acta Cryatallogr. B.

E.Chiba：“甲基苯腙衍生物的结构及其非线性光学性质。”

HORIUCHI, H.: "Crystal structure of mantle minerals and their implications for phase transition at high pressures." "Dynamic Processes of Material Transport and Transformation in the Earth's Interior".

HORIUCHI, H.：“地幔矿物的晶体结构及其对高压下相变的影响。”

堀内弘之: 日本金属学会会報. 28ー3. 213-219 (1989)

Hiroyuki Horiuchi：日本金属研究所公报 28-3 213-219 (1989)。

堀内弘之: "Crystal structures of mantle minerals and its implication to phase transition at high-pressures,in Dynamic processes of material transport and transformation in the Earth's Interi" (1989)

Hiroyuki Horiuchi：“地幔矿物的晶体结构及其对地球内部物质传输和转化动态过程中高压相变的影响”（1989）

床次正安: "Pseudoelastic defoemation of Cu14.0-Al-4.2Ni(wt%)alloy studied by single crystal neutron diffraction method" Acta Crystallogaphica. A46S. (1990)

Masayasu Tokotsugu：“通过单晶中子衍射法研究 Cu14.0-Al-4.2Ni(wt%) 合金的赝弹性消泡”Acta Crystallogaphica (1990)。