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Title: Particulate matter sensor with a heater

An apparatus to detect particulate matter. The apparatus includes a sensor electrode, a shroud, and a heater. The electrode measures a chemical composition within an exhaust stream. The shroud surrounds at least a portion of the sensor electrode, exclusive of a distal end of the sensor electrode exposed to the exhaust stream. The shroud defines an air gap between the sensor electrode and the shroud and an opening toward the distal end of the sensor electrode. The heater is mounted relative to the sensor electrode. The heater burns off particulate matter in the air gap between the sensor electrode and the shroud.
Authors:
 [1]
  1. Austin, TX
Publication Date:
OSTI Identifier:
1025542
Report Number(s):
7,998,417
DOE Contract Number:
FC26-06NT42966
Resource Type:
Patent
Research Org:
Board of Regents, University of Texas System (Austin, TX)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION