Apparatus and method for extracting vibration data from a moving drive chain
US8646796B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 24, 2010 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Aug 24, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M6/50
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to an apparatus and method for extracting vibration data from a moving drive chain. In the preferred embodiment, the chain is that of a bicycle, or similar pedaled machine such as an indoor stationery bicycle, with two or more sensors placed on the chainstay of the bicycle to measure the vibrational frequency of the chain. Such vibration data can be used to determine the tension of the chain, and may also further compute the power transmitted by the chain, in conjunction with the measurement of chain speed. The invention provides a method and apparatus for conditioning and filtering the signals from the vibration sensors, as well as an arrangement for positioning the sensors on the bicycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.