Apparatus and method for vibration analysis of a machine or other article
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United States of America Patent
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Mar 13, 2007
Grant Date -
Dec 2, 2004
app pub date -
Jul 2, 2004
filing date -
Apr 3, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for wireless transmission of data through a communications channel between at least two local data sensors (for example automotive diagnostic data sensors or NVH sensors), which may include a primary data-processing function, and data-processing function (for example a PC) to receive data therefrom. The system provides for asymmetrical division of the communications channel on a frequency or time-division or packet-switching basis so that the corresponding asymmetrical data transmission requirement of the local data sensors are matched to the capacity of their respective sub-channels whereby a single channel is capable of transmitting all the required data. A particularly practical application is to noise vibration harshness analysis of wireless-transmitted data from three-dimensionally spaced NVH sensors enabling spacial pinpointing of vibration sources in automotive warranty analysis studies.
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