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Simcenter Qsources Low Frequency Monopole Source 2v9C.docx
3
Introduction
The Simcenter Qsources Low Frequency Monopole Source is a very compact volume displacement source. This
device is especially suitable for lower frequency, reciprocal (vibro-)acoustic transfer function measurements in and
around vehicles. It can be applied where monopole noise emission and compact dimensions are important.
The Simcenter Qsources Low Frequency Monopole Source is a unique device due to its internal reference sensor
and its large stroke at low frequencies. The internal sensor measures the source sound strength emitted by the
source and is the reference for accurate FRF measurements. It is a monopole source with no (or negligible)
diffraction effect for frequencies well over 1 000 Hz. Measurements can be done either in a direct or reciprocal way.
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