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Motion sensors determine wind turbine rotor speed

OPTIPACT motion sensors from FRABA Inc. measure velocity by calculating the rate at which an image of a moving surface travels across an optical sensor. With no contact between the sensor and the moving object, dust or surface contaminates won’t cause problems.

OPTIPACT sensors provide a suitable way of determining rotor speed in wind turbines: Just measure the velocity with which part of the rotor (e.g. nose cone or shaft) moves past a point on the body of the turbine. OPTIPACT motion sensors are compact, robust, and well suited for primary or backup rotor speed regulation.

For more information, contact FRABA Inc., 1800 East State St., Suite 148, Hamilton, NJ 08609. Phone: (609) 750-8705.

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