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

ICOS System

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

ICOS-CNG System

Optical indication of CNG fuel density and lambda value

ICOS-Temperature System

Optical indication of gas temperature and H₂O concentration

ICOS Probes

Engine probes for ICOS systems

ICOS system specifications and application fields

Product Information

ICOS (english)

Evaluation of Mixture Formation in a CNG-Fueled Engine

Transient Analysis of Lambda and EGR

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