Patent ID: 6732810
Filing Date: 2004-05-11
Classification: G01J

Abstract:
A detector arrangement adapted for use in a preventative, protective system and comprising a number of sensor units or sensor sections, a sensor-unit output signal evaluating unit, and an activation unit which co-acts with said evaluating unit, wherein at least one particle whose presence is sensed by the sensor units and that has an energy content determined by the evaluating unit that exceeds a predetermined value causes the activation unit to switch from a first state to a second state, wherein a first sensor unit or sensor section is adapted to sense the sub-energy content of a particle and/or the wavelength intensity of said particle within a first wavelength range; in that a second sensor unit or sensor section is adapted to sense the sub-energy content of the same particle and/or its wavelength intensity within a second wavelength range; and in that the evaluating unit is adapted to allow the output signals from the sensor units or the sensor sections to be processed and in that activation of the activation unit is either inhibited or initiated on the basis of the result obtained, wherein the plurality of sensor units or sensor sections are adapted to sense the sub-energy content of a particle and/or its wavelength intensity within mutually discrete wavelength ranges, and wherein the evaluating unit is adapted to allow the sub-intensity of a received output signal to be compared with a stored maximized wavelength-range-related value and to allow actuation of the activation unit at least when the sub-intensity of an output signal exceeds said maximized value.