公开(公告)号：US3868184A

公开(公告)日：1975-02-25

申请号：US38252173

申请日：1973-07-25

Applicant: ELECTRO SIGNAL LAB

Inventor： MARSOCCI ANGELO AUGUST

IPC: G01N21/47 ,  G01N21/53 ,  G08B17/10 ,  G08B17/107 ,  G01N21/00 ,  G01N21/12

CPC classification number: G08B17/107 ,  G01N21/4785 ,  G01N21/53 ,  G08B17/113

Abstract: An optical smoke and like particle detector housing in which light from a lamp is protected along one axis and scattered by particles along a second axis to a photocell has a particle simulating device for testing the operativeness of the cell and its associated alarm circuit. The particle simulating device comprises a thin wire mounted on a bell crank manually operated outside the detector housing to swing the wire through the detection zone at the intersection of the lamp and photocell axes so as to scatter light from the lamp to the cell in the same way and amount as particles in the zone.

Abstract translation: 一种光学烟雾和类似颗粒检测器壳体，其中来自灯的光沿着一个轴被保护并且沿着第二轴的颗粒被散射到光电池具有用于测试电池及其相关联的报警电路的操作性的粒子模拟装置。 颗粒模拟装置包括安装在手动操作在检测器壳体外部的钟形曲柄上的细线，以使线穿过灯和光电池轴的交叉点处的检测区域，以便将来自灯的光散射到相同的电池中 方式和数量作为颗粒在该区域。