FIELD: measurement technology. SUBSTANCE: invention can be used in systems providing fire safety of objects. Said method is based on analysis of constant component of signal after accumulation of trains of pulses of definite length. Flame detector has photodetector, secondary converter, voltage amplifier, hand-pass filter, length comparator unit, pulse shaper, accumulating unit, operating signal comparator unit, direct current amplifier, voltage limiter and control device. EFFECT: improved reliability of flame detection. 4 cl, 16 dwg
Title | Year | Author | Number |
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METHOD AND DEVICE FOR RESISTANCE MEASUREMENTS | 2003 |
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Authors
Dates
2002-12-27—Published
2001-07-04—Filed