The fire detector uses an IR temperature sensor, coupled to an electronic evaluation circuit, for detecting a stationary hot spot with a temperature variation greater than that of the surrounding environment. The IR radiation is directed onto the temperature sensor via an optical lens, with a pivot device for movement of the lens and the temperature sensor for simulated movement of the hot spot.
申请公布号
DE19744635(A1)
申请公布日期
1999.04.15
申请号
DE19971044635
申请日期
1997.10.09
申请人
SIEMENS NIXDORF INFORMATIONSSYSTEME AG, 33106 PADERBORN, DE