Temperature sensing device. [receiver/radiator in conduit with photodetector]
R. M. Biefeld, D.S. Ginley · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1977
This invention relates to a relatively compact and inexpensive device for measuring temperature, wherein a receiver-radiator that may be subjected to a heat zone, is coupled by a conduit with a thermal radiation detector.