发明名称 |
TEMPERATURE DETECTOR OF MOVING OBJECT, IMAGE FIXING DEVICE, AND TEMPERATURE DETECTING UNIT |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a temperature detector for accurately detecting a temperature without damaging a moving object or a thermister. <P>SOLUTION: A protection member 2 is formed on a surface of the thermister 1. A contact 2 is provided on a surface of the protection member 2. The detector is provided with a first detecting circuit detecting the electrical resistance of the thermister, and a temperature detecting means detecting the surface temperature of the moving object according to a detection result of the first detecting circuit. The detector is further provided with a second detecting circuit electrically isolated from the first detecting circuit and detecting the electrical resistance of a conduction section, and a life estimating means estimating the life of the temperature detecting means based on the electrical resistance detected by the second detecting circuit. <P>COPYRIGHT: (C)2004,JPO |
申请公布号 |
JP2004069392(A) |
申请公布日期 |
2004.03.04 |
申请号 |
JP20020226611 |
申请日期 |
2002.08.02 |
申请人 |
CANON INC |
发明人 |
TSURUNO KUNIO;FUKUSHI KENJI;MIYAMOTO KAZUKI |
分类号 |
G01K7/22;G01K13/08;G03G15/20;G03G21/00 |
主分类号 |
G01K7/22 |
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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