| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-contact type temperature detector having a stable oscillation circuit unaffected by an eddy current in a coil. SOLUTION: In this non-contact type temperature detector comprising a sensor detection part 10 and a circuit processing part 20, the detection part 10 comprises a secondary coil 3, a dielectric substrate 1, and a capacitor 2. The capacitance of the capacitor 2 changes with temperatures. The capacitor 2 is formed on or near one surface of the substrate 1 and the secondary coil 3 is formed on or near the other surface of the substrate 1. The surface of the substrate 1 on or near which the capacitor 2 is formed is joined to or embedded in an object to be detected. The processing part 20 comprises a primary coil 5, an oscillation circuit part 6, a filter circuit part 7, and a detection circuit part 8. The secondary coil of the detection part and the primary coil of the processing part are electromagnetically coupled to each other leaving a prescribed distance between them. |
