JCAPII Cross Check Tests of Fast Electrical Mobility Spectrometers for Evaluation of Accuracy 2007-01-4081
Crosscheck tests of fast electrical mobility spectrometers, Differential Mobility Spectroscopy (DMS) and Engine Exhaust Particle Sizer(EEPS), were conducted to evaluate the accuracy of fine particle measurement. Two kinds of particles were used as test particles for the crosscheck test of instruments: particles emitted from diesel vehicles and diluted in a full dilution tunnel, and particles generated by CAST. In the steady state tests, it was confirmed that the average concentration of each instrument was within the range of ±2σ from the average concentration of all the same type of instruments. In the transient tests, it is verified that the instruments have almost equal sensitivity. For application of the fast electrical mobility spectrometers to evaluation of particle number and size distributions, it is essential to develop a calibration method using reference particle counters and sizers (CPC, SMPS, etc.) and maintenance methods appropriate for each model. Furthermore, the accuracy of the instruments should be controlled using the methods developed on a daily basis.
Citation: Tonegawa, Y., Nakajima, T., Yanagisawa, N., Hosoya, M. et al., "JCAPII Cross Check Tests of Fast Electrical Mobility Spectrometers for Evaluation of Accuracy," SAE Technical Paper 2007-01-4081, 2007, https://doi.org/10.4271/2007-01-4081. Download Citation
Japan Automobile Research Institute, Isuzu Advance Engineering Center, Ltd., Hino Moters, Ltd., Mitsubishi Fuso Truck&Bus Corp., Nissan Motors Co, Ltd., Toyota Motor Corporation, COSMO Oil Co., Ltd., Idemitsu Kosan Co., Ltd., JOMO Technical Research Center Co., Ltd., Japan Petroleum Energy Center
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