Equivalent circuit of environmental sensor, method for measuring and/or normalizing odor pressure, and odor and/or fire detection system, using the same.

摘要

An equivalent circuit of an environmental sensor (1) is provided with a saturation resistance (ro), a first resistance (ra) affected by the environment thereof and a second resistance (rn) adapted to change according to an odor pressure. In the equivalent circuit, the saturation resistance is connected in series a parallel connection of the first and second resistances. Such a circuit is used with a method for measuring or normalizing odor pressure, or in an odor detection system, particularly for use as a fire detection system. <IMAGE>