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Data Acquisition Techniques for Rotating Machinery

by K. Warren Frizell, Bureau of Reclamation, Denver, United States,
Brent W. Mefford, Bureau of Reclamation, Denver, United States,
Morris M. Skinner, Bureau of Reclamation, Denver, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

Monitoring the condition and performance of a hydraulic turbine or pump requires the simultaneous collection of data related to shaft speed, torque, power, water and airborne sound pressure level, temperature, flow rate, and vibration. Computerized data acquisition and analyses procedures are well suited to this task. Fixed and rotating sensors are used to evaluate machine problems. Some problems may be flow induced, such as cavitation, draft tube surging, and steady oscillatory flow phenomena while others are strictly related to structural and mechanical properties. This paper will describe traditional as well as some new sensor and acquisition methods currently being investigated by the Bureau of Reclamation.

Subject Headings: Data collection | Hydrologic data | Water reclamation | Probe instruments | Flow measurement | Vibration | Turbines

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