Abstract

Abnormal combustion of a gasoline engine is often accompanied by a sharp metallic noise called knocking. A recently proposed method of in-cylinder pressure measurement is applied to detect the knocking, where the bending power loss of a single-mode fiber with specific refractive-index composition is utilized. The high-frequency response of a prototype sensor is obtained with a small structure to utilize the bending mechanism that is installed into an engine head gasket. Knocking signals are detected in a wide range of trace- to heavy-knock conditions.

© 1998 Optical Society of America

Full Article  |  PDF Article
More Like This
Multiplex in-cylinder pressure measurement utilizing an optical fiber with specific refractive-index composition

M. Komachiya, H. Sonobe, S. Oho, M. Kurita, T. Nakazawa, and T. Sasayama
Appl. Opt. 35(7) 1143-1150 (1996)

Interferometric fiber-optic sensor embedded in a spark plug for in-cylinder pressure measurement in engines

Taehan Bae, Robert A. Atkins, Henry F. Taylor, and William N. Gibler
Appl. Opt. 42(6) 1003-1007 (2003)

Annular phase-matched dual-pump coherent anti-Stokes Raman spectroscopy system for the simultaneous detection of nitrogen and methane

Stephen M. Green, Paul J. Rubas, Mark A. Paul, James E. Peters, and Robert P. Lucht
Appl. Opt. 37(9) 1690-1701 (1998)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription