NOISE AND VIBRATION SENSING

摘要

A noise and vibration sensing system is provided. The sensing system includes an acceleration sensor arrangement and a summer module. The acceleration sensor arrangement includes at least one acceleration sensor and is configured to generate at least two sense signals representative of acceleration that acts on the acceleration sensor arrangement. The at least two sense signals includes dynamic ranges that are ratios between maximum amplitudes of the at least two sense signals and noise created by the acceleration sensor arrangement. The summer module is configured to sum up the at least two sense signals to provide a sum signal that includes noise and a dynamic range which is a ratio between a maximum amplitude of the sum signal and the noise included in the sum signal. The dynamic range of the sum signal is greater than the arithmetic mean of the dynamic ranges of the at least two sense signals.

主权项

1. A noise and vibration sensing system comprising:
an acceleration sensor arrangement comprising at least one acceleration sensor and configured to generate at least two sense signals representative of the acceleration that acts on the acceleration sensor arrangement, wherein the at least two sense signals have dynamic ranges which are ratios between maximum amplitudes of the at least two sense signals and noise created by the acceleration sensor arrangement; and a summer module configured to sum up the at least two sense signals to provide a sum signal, wherein the sum signal includes noise created by the acceleration sensor arrangement and wherein the sum signal has a dynamic range which is a ratio between a maximum amplitude of the sum signal and the noise included in the sum signal, the dynamic range of the sum signal being greater than an arithmetic mean of the dynamic ranges of the at least two sense signals.