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HYDRO TURBINE ALIGNMENT

TURBINE ALIGNMENT USING LASER DISPLACEMENT SENSORS

MEASURING TURBINE BLADE CLEARANCE WITH THE AR700
Engineers at the Rock Island Hydroelectric Facility in Wenatchee, WA needed a precise, non-contact method for aligning the turbine blades in the system’s housing.

They selected an AR700 laser displacement sensor to measure the distance from a known location on the turbine to the sidewall. The generator was slowly rotated to ensure consistent and acceptable clearance around the entire unit.

Without encoders, they used magnetically-attached AR4000 laser rangefinders to detect the position of stationary wicket gates. At each gate position, they would trigger a measurement of the clearance.

RELATED PRODUCTS

AR2000 LASER DISTANCE METER
AR4000 LASER RANGE FINDER
AR700 LASER DISPLACEMENT SENSOR
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