Portable, self-contained data collection systems and methods
US6801877B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2002 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Jun 21, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K16/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A portable self-contained data collection system for measuring and collecting vibration data from machines includes an accelerometer coupled to the analog input of a data acquisition card that 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 that 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.