Estimating uncertainty of measurements for cavitation detection in a centrifugal pump |
| |
Authors: | Jan ?erneti? |
| |
Affiliation: | University of Ljubljana, Faculty of Mechanical Engineering, Ašker?eva 6, SI-1000 Ljubljana, Slovenia |
| |
Abstract: | Measurement of noise and vibration signal in audible frequency range to detect cavitation in centrifugal pumps is rather unknown technique. There were already some studies performed on this technique and they showed quite good results. Due to many factors that influence the quality of the measurement, an uncertainty analysis should be performed. This paper deals with estimation of a measurement uncertainty for different kinds of measurement ways to detect the cavitation in a centrifugal pump with noise and vibration signal in audible frequency range from 20 Hz to 20 kHz. Especially the measurement uncertainties for cavitation detection in broad frequency range and at a discrete frequency were analyzed. Results showed that this technique is reliable despite many possible influences on uncertainty. |
| |
Keywords: | Pump Cavitation Measurement Noise Vibration Uncertainty |
本文献已被 ScienceDirect 等数据库收录! |