Vibration measuring system

Details Vibration measuring system Vibration measuring system

2006-06-12

2010-10-26

Williams, Hezron (Department: 2856)

Measuring and testing

Vibration

Sensing apparatus

C073S514240, C073S514290, C073S514320

Reexamination Certificate

active

07819012

ABSTRACT:
A vibration measuring system for the frequency-selective measuring of especially low-frequency vibrations relevant in the area of automation and motive power engineering is disclosed which allows an economical vibration analysis of frequencies in the range of from 0 to 1 kHz. For this purpose, a broad-band transmitting structure which is directly induced by the excitation signal to be determined is coupled to a receiving structure by an electrostatic or inductive force. This force coupling brings about an amplitude modulation of a carrier signal inducing the receiving structure. The spectrum of the amplitude-modulated carrier signal can then be used to extract the actual excitation signal, e.g. by suitably choosing the frequency of the carrier signal.

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