| 摘要 |
FIELD: smoke detectors. ^ SUBSTANCE: smoke detector contains control section with light source and photo detector positioned therein, mounted at an angle to one another so that their optical axes lie in plane of horizontal cross-section of section for controlling optical density of smoky environment, optical axis of light source is positioned outside the line of sight of photo-detector, and point of intersection of aforementioned optical axes is positioned inside the working space of aforementioned section. Light source and photo-detector are positioned in hollow holders mounted at an angle to one another, section for controlling optical density of smoky environment has bottom and lid, while working space of aforementioned section is formed by bottom and lid, and also by end surfaces of holders positioned at an angle to one another and by internal surface of side barrier formed by first and second extensive walls. ^ EFFECT: expanded assortment of optoelectronic smoke detectors. ^ 3 cl, 1 dwg |
