Title:
【発明の名称】散乱光式煙感知器の煙シミュレーション手段、煙感知器の煙感度の較正方法および煙シミュレーション手段の使用法
Document Type and Number:
Japanese Patent JPH08501637
Kind Code:
A
Abstract:
For testing or/and adjusting a scattered-light smoke detector as to sensitivity to smoke, a transparent body with included scattering centers is introduced into the measurement volume of the detector. Aluminum oxide powder particles can serve as scattering centers. The distribution of light scattering centers is preferably uniform, and their concentration chosen to simulate a smoke density corresponding to the alarm threshold of the smoke detector. Thus, scattered-light smoke detectors are readily calibrated to a desired output signal as a function of smoke density. With a different density of scattering centers, the technique can be used for testing scattered-light smoke detectors in the field. If the scattering centers are distributed outside a measurement volume of an uncontaminated detector, the technique can be used for testing as to contamination.
Inventors:
Scheppe, Hans-Peter
Hitbar, Artur
Hitbar, Artur
Application Number:
JP50373195A
Publication Date:
February 20, 1996
Filing Date:
June 28, 1994
Export Citation:
Assignee:
Zellberth Akchengezel Shaft
International Classes:
G01N21/53; G08B17/10; G08B17/107; A62C37/50; G08B29/14; (IPC1-7): G01N21/53; A62C37/50; G08B17/10
Attorney, Agent or Firm:
Soga Doteru (6 people outside)