The influence of vibration transducer mounting on the practical measurement of railway vibration by Jorge D'Avillez, Matthew Frost, Steve Cawser, Ashraf El-Hamalawi, Paul Fleming, Paul Shields, C. Skinner

“…The data demonstrate that transducer vertical alignment has limited influence at small angles. “Blu-tack” showed to be an adequate couplant. Above 50 Hz coupling systems can influence the reading by up to 20 dB. …”
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