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Optical Engine Indication - ICOS

LaVision’s Internal Combustion Optical Sensors (ICOS) measure crank angle resolved air/fuel ratio, exhaust gas concentration, EGR-rate and gas temperature directly inside the cylinder. The optical sensor is integrated into a spark plug, a glow plug or positioned at any other in-cylinder location using M5-probes. Transmission probes are available for path integrated cross-cylinder measurements.

ICOS Applications
  • Air/fuel ratio
  • CO2 concentration, EGR-rate
  • Gas temperature
  • Water concentration
  • Gasoline, Diesel, CNG
  • Combustion stability
  • Consecutive cycles analysis
    for transient phenomena
System Advantages
  • Compact, easy to handle
  • Precise single cycle analysis
  • Crank angle resolved data
  • Ultra-fast response time
  • Unmodified engines, real fuel
  • Test bed synchronization
  • No gas sampling
  • Wide choice of probe designs
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ICOS System

Optical indication of fuel density, lambda value,
CO2 and EGR-rate
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ICOS-CNG System

Optical indication of CNG fuel density and lambda value
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ICOS-Temperature System

Optical indication of gas temperature and H2O concentration

ICOS system specifications and application fields

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Product Information

no-img Evaluation of Mixture Formation in a CNG-Fueled Engine
no-img Transient Analysis of Lambda and EGR
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