Application of a ring laser for measurement of track geometrical parameters

Valery I. Gupalov; Andrei V. Mochalov; Alexander M. Boronachin

doi:10.1117/12.407675

27 November 2000 Application of a ring laser for measurement of track geometrical parameters

Valery I. Gupalov, Andrei V. Mochalov, Alexander M. Boronachin

Proceedings Volume 4316, International Conference on Lasers for Measurements and Information Transfer; (2000) https://doi.org/10.1117/12.407675
Event: International Conference on Lasers for Measurements and Information Transfer, 2000, St. Petersburg, Russian Federation

Abstract

Over last years, the ring lasers are wildly used as sensors of inertial measuring and navigational systems, due to such exceptional properties, as high accuracy, wide dynamic range, non-sensitivity to linear acceleration, et al. In the conditions of growing speeds and density of railway traffic, growing requirements to accuracy of measurements, the systems on ring laser gyro (RLG) and accelerometers seem to be the most promising. Track checking includes the use of track measuring cars or carriages automatically recording the railway condition control of the railway under a load by the use of specialized track measuring vehicles equipped with computers for registration and analysis of measurement results. Although the ring laser gyroscope provides a very high accuracy in the measurement of angular rates and angles, it does have one significant problem -- synchronization of the counter-propagating waves. This effect is usually referred to as lock-in. There were many solutions to the lock-in problem, but mechanical dithering of the RLG was finally adopted as a practical solution to it.

Citation Download Citation

Valery I. Gupalov, Andrei V. Mochalov, and Alexander M. Boronachin "Application of a ring laser for measurement of track geometrical parameters", Proc. SPIE 4316, International Conference on Lasers for Measurements and Information Transfer, (27 November 2000); https://doi.org/10.1117/12.407675

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available