摘要:
A method for fluid pressure analytical electronic heat and fire detection, and a corresponding heat detector, used for detecting heat and fire, having no moving components, such as a valve, switch, membrane, diaphragm, or similar actuatable device of moving parts, for effecting activation of a warning or alarm signal indicating a condition of excessive heat or fire. The analytical electronic heat detection mechanism is based on electronic circuitry (38) including at least one fluid pressure transducer (46), logic, and other cooperatively functioning electronic components, for highly accurately and reproducibly, first analyzing a potential condition, and then logically determining an actual condition of excessive heat or fire. The electronic heat detection mechanism is fully functional, by having at least one fluid chamber (10, 12) closed to any external source of fluid pressure. The invention includes an automatic electronic testing procedure for naturally stimulating the heat detection mechanism for effecting operation. The invention can be implemented in a variety of configurations, including, as a spot type or line-type heat detector, closed or open fluid pressure type heat detector, operating in different ways for monitoring temperature, such as fixed temperature and/or rate of temperature rise, and in a variety of applications, including incorporating them into multi-unit systems of automatic excessive heat and fire detection, encompassing a wide range of environmental conditions, in a cost effective manner.