APPARATUS FOR MEASURING TEMPERATURE USING RESISTANCE TEMPERATURE DETECTOR

The present invention relates to an apparatus for measuring a temperature using a resistance temperature detector. The apparatus for measuring a temperature using a resistance temperature detector computes a temperature corresponding to a voltage by detecting the voltage applied to the detector afte...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	NAM, JAE WOO
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MEASURING QUANTITY OF HEAT MEASURING TEMPERATURE PHYSICS TESTING THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	The present invention relates to an apparatus for measuring a temperature using a resistance temperature detector. The apparatus for measuring a temperature using a resistance temperature detector computes a temperature corresponding to a voltage by detecting the voltage applied to the detector after a constant current is applied to the resistance temperature detector and controls a constant current by automatically sensing the variation of the current if the current flowing in the resistance temperature detector is changed. Therefore, the apparatus for measuring a temperature using a resistance temperature detector accurately measures a temperature even when the constant current is changed due to the aging of a connection wire or a temperature measurement circuit. 본 발명은 측온저항체 센서를 이용하여 온도를 측정하는 장치에 관한 것으로서, 기본적으로 측온저항체 센서에 정전류를 인가한 후 센서에 인가되는 전압을 검출하여 그에 대응하는 온도를 산출하며, 만일 측온저항체 센서에 흐르는 전류가 변동하는 경우에는 이를 자동으로 감지하여 정전류 조정을 수행하도록 구성된다. 그러므로, 온도 측정 회로나 연결 도선의 경시변화 등으로 인하여 정전류 변동이 발생하는 상황에서도 온도측정의 정밀도를 보장할 수 있다.