Detection unit for use in security, alarm and/or monitoring system, has inclinometer for measuring variation of absolute angle with respect to vertical of reference surface, and delivering measured signal exploitable by unit or system

摘要

The unit (1) has an inclinometer (5) e.g. microelectromechanical systems type dual-axis accelerometer, measuring variation of absolute angle with respect to vertical of a reference surface of a case (2), a part of the case or a support e.g. electronic board (3'), of internal functional elements (3). The elements are housed in the case fixed to a wall, mast or roof by a fixation accessory (4) e.g. articulated arm. The inclinometer delivers a measured signal exploitable by the unit or a security, alarm and/or monitoring system. A sensing element is in the form of a micro-system made of silicon.