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Vibration Testing of a Bell Tower

The measurements and analysis presented here are performed by Dr. Reto Cantieni, RCI Dynamics, Switzerland.

This case consider measurements conducted on the bell tower of the St. Peter & Paul church in Zürich, Switzerland. The measurements were conducted using a LMS Pimento data acquisition system. The sensors were PCB 93B31 accelerometers. Modal analysis was prepared with ARTeMIS Testor and conducted with ARTeMIS Extractor Pro using Crystal Clear SSI.

Related Information

The bell tower test is described in more details in the following paper:

R. Cantieni.
Experimental Methods used in System Identification of Civil Engineering Structures.
2nd. Workshop: Problemi di vibrazioni nelle strutture civili e nelle costruzioni meccaniche, Perugia, 10-11 Giugno, 2004.


Pictures from the Test

The St. Peter & Paul church in downtown Zürich, Switzerland:

Mounting of two PCB accelerometers next to the church clock:

Mounting reference accelerometers on the top corner of the bell tower:

Mounting of accelerometers for 2D measurement inside the tower:

The measurement control station located just beneath the church bell:






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