Browse Publications Technical Papers 910324
1991-02-01

On-Line Measurement of Diesel Particulate Loading in Ceramic Filters, 1991 910324

A new method of measuring diesel-particulate accumulation has been developed that uses electromagnetic energy to interrogate a ceramic filter and to give a real-time measurement of the trapped-soot level. The measurement method is inherently independent of engine-exhaust-gas volumetric flow rates and is relatively insensitive to changes in filter temperature.
This paper presents laboratory data, derived from testing of full-scale, wall-flow filter systems, demostrating the viability of the measurement method. The implementation of the measurement method in on-vehicle regeneration system is also discussed.

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