TEMPERATURE-FLUCTUATION AS A DETECTION CRITERION

In this paper we investigate the question 'What kind of information is contained in temperature fluctuation concerning fire detection?'. To answer this question, the Swiss Company CERBERUS AG developed a specia l sensor for measuring the fluctuations, being robust to environmental factors. With this sensor it is possible to distinguish between a fir e in a cold room or airflow through an open window in a warm room only by the fluctuations. In addition, we discuss the evolutionary spectru m from some typical fire and non-fire signals. (C) 1997 Elsevier Scien ce Ltd.