发明名称 |
Portable, self-contained data collection systems and methods |
摘要 |
A portable self-contained data collection system for measuring and collecting vibration data from machines includes an accelerometer which is coupled to the analog input of a data acquisition card. The data acquisition card samples and digitizes the analog signal to produce a time domain digital signal. The data acquisition card output is coupled to a battery-powered portable computer. The battery-powered portable computer includes a database having machine identifications and associated measurement parameters. The portable computer processes the time domain digital signal according to the measurement parameters associated with a selected machine identification, and produces a frequency domain digital signal by performing a Fast Fourier Transform and other digital signal processing operations. The frequency domain signal is also analyzed in the portable computer to produce predictive maintenance information. A power supply for supplying power to the accelerometer is also included.
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申请公布号 |
US6411921(B1) |
申请公布日期 |
2002.06.25 |
申请号 |
US19980152429 |
申请日期 |
1998.09.14 |
申请人 |
ENTEK/IRD INTERNATIONAL CORPORATION |
发明人 |
SCHILTZ RICHARD L.;BATES ANDREW J.;WATKINS JEFFERY P. |
分类号 |
G01H1/00;(IPC1-7):G06F17/00 |
主分类号 |
G01H1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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