Pyroelectric type infrared-ray sensor
专利汇可以提供Pyroelectric type infrared-ray sensor专利检索，专利查询，专利分析的服务。并且PURPOSE:To make it possible to suppress unnecessary outputs due to a piezoelectric effect other than a pyroelectric effect caused by temperature change, by a structure wherein a pyroelectric film is supported by a resin ring and the entire pyroelectric film provided with evaporated electrodes are assembled as sensors. CONSTITUTION:A resin ring 13 is used instead of a conventional metal ring. A pyroelectric film 10 and the resin ring 13 are fixed by ultrasonic welding, and a unitary body is formed. Short circuits of electrodes, which are mounted on the pyroelectric film 10, can be eliminated at the time of assembly. Since the fixing can be achieved by the ultrasonic welding, protrusion of a bonding agent on the pyroelectric film 10 does not occur. Deflection and stiffening of the pyroelectric film 10 due to temperature change are eliminated. Generation of unnecessary outputs due to a piezoelectric effect can be excellently suppressed.，下面是Pyroelectric type infrared-ray sensor专利的具体信息内容。
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6 热电元件
