Device and method for determining torques on a turbine shaft

Measuring and testing – Dynamometers – Responsive to torque

Reexamination Certificate

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C073S862045, C073S862321, C073S862325, C073S862326, C073S862328

Reexamination Certificate

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07398701

ABSTRACT:
A device is described for determining the torque which is applied to a turbine shaft (10), the determination device having at least one system for contactless measurement of the integral torsion of the turbine shaft (10) and a unit for contactless measurement of the restoring constant of the turbine shaft (10). Furthermore, a method is described for determining the torque which is applied to the low-pressure turbine shaft (10) of a turbine engine, which is distinguished in that, to determine the torque, the integral torsion of the turbine shaft is measured by a contactless method and the restoring constant of the turbine shaft is measured.

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M. Zielinski and G. Ziller, Noncontact vibration measurements on compressor rotor blades, Meas. Sci. Technol. 11 (2000) pp. 847-856, XP-001100401, accepted for publication Jan. 17, 2000.

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