发明名称 |
SENSOR AND MEASURING DEVICE FOR DETECTING CHANGE IN TEMPERATURE GRADIENT |
摘要 |
PROBLEM TO BE SOLVED: To provide a sensor and device capable of easily capturing changes and micro-changes in a temperature gradient. SOLUTION: The sensor is comprised of a membrane capacitor of a structure in which a membrane 12 of a ferroelectric BaTiO3 of a thickness of 30 ML (approximately 120Å) grown through the use of an MBE method is provided on a lower electrode 10 comprised of an SrTiO3 substrate doped with Nb of a thickness of 0.5 mm and in which a Pd upper electrode 14 is provided by deposition on the membrane 12. The polarization reversal of the membrane capacitor generated by the change of the temperature gradient is converted into a physical quantity i.e., a change in capacitance and measured by an LCR meter.
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申请公布号 |
JP2002090228(A) |
申请公布日期 |
2002.03.27 |
申请号 |
JP20000283169 |
申请日期 |
2000.09.19 |
申请人 |
JAPAN ATOM ENERGY RES INST |
发明人 |
YONEDA YASUHIRO |
分类号 |
G01K7/34;(IPC1-7):G01K7/34 |
主分类号 |
G01K7/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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