Temperature compensating type photo detector
专利汇可以提供Temperature compensating type photo detector专利检索，专利查询，专利分析的服务。并且PURPOSE:To stabilize a measuring precision of a photo detecting element irrespective of external temperature change through compensation of temperature of a photo detecting output, by installing a photo conductive type detecting element on a Peltier element and cooling the photo detecting element corresponding to an ambient temperature. CONSTITUTION:If the temperature around a photo detector 1 rises, temperature detecting signal from a thermocouple 7 increases, and a current flowing to a Peltier element 8 increases as a result of the increase in a current value outputted from a power source control circuit 8 proportioning the temperature detecting signal to cool a metal body 9. Meanwhile, if an ambient temperature falls, a current flowing to the Peltier element 8 decreases, the cooling action of the metal body 9 reduces. This enables controlling of the cooling action of the metal body 9 corresponding to fluctuation in an ambient temperature, and causes the temperature to be stabilized to an approximately constant value, for example, 0 deg.C. An SePb photo detecting element 14 is secured to the metal body 9 through a ceramic substrate 16, and thereby it is held in temperature approximately equal to that of the metal body 9.，下面是Temperature compensating type photo detector专利的具体信息内容。
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