一种离子烟浓度计测试准确度评判方法
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摘要
本文提出一种判定离子烟浓度计相对准确度的便捷方法。使用一无量纲的量表征待测离子烟浓度计相对于标准样品的测试准确度。使用重复性,方位稳定性好的离子型火灾报警器作为标准样品。将待测离子烟浓度计的响应阈值和标准样品的响应阈值比较,确定其误差,从而判定其准确度。该方法可给相关测试实验室、产品制造商、标准制修订人员提供参考。
A convenient method is proposed here to determine the relative accuracy of measuring ionization chamber(MIC). A non-dimensional quantity is presented here to characterize the relative accuracy of the testing MIC to the standard sample. Fire alarm with good repeatability and azimuth stability is used as the standard sample. The response threshold of the MIC to be measured is compared with that of the standard sample to determine its error and accuracy. This work may be benefit to testing laboratory, system manufactory and standard revision personnel.
A convenient method is proposed here to determine the relative accuracy of measuring ionization chamber(MIC). A non-dimensional quantity is presented here to characterize the relative accuracy of the testing MIC to the standard sample. Fire alarm with good repeatability and azimuth stability is used as the standard sample. The response threshold of the MIC to be measured is compared with that of the standard sample to determine its error and accuracy. This work may be benefit to testing laboratory, system manufactory and standard revision personnel.
引文
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[7]C.Helsper,H.Fissan,J.Muggli,&A.Scheidweiler.Verification of ionization chamber theory.Fire Tech.1983,19:14-21.
[2]M.A.Jackson,I.Robins.Gas sensing for fire detection:Measurements of CO,CO2,H2,O2,and smoke density in European standard fire tests.Fire safety J.1994,22:181-205.
[3]G.Heskeatad,J.S.Newman.Fire detection using crosscorrelations of sensor signals.Fire safety J.1992,18:355-374.
[4]S.Aggarwal,V.Motevalf.Investigation of an approach to fuel identification for non-flaming sources using light-scattering and ionization smoke detector response.Fire safety J.1997,29:99-112.
[5]N.G.Bernigau,H.O.Luck.The principle of the ionization chamber in aerosol measurement techniques-A review.J.Aerosol Sci.1986,17:511-515.
[6]A.Scheidweiler.The ionization chamber as smokedependent resistance.Fire Tech.1976.12:113-123.
[7]C.Helsper,H.Fissan,J.Muggli,&A.Scheidweiler.Verification of ionization chamber theory.Fire Tech.1983,19:14-21.