Feedback control of electrorheological fluid response
US5493127A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1994 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Dec 20, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/534
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A closed loop feedback control for enhancing the response of electrorheological fluid having a light source and a photodetector measuring the light transmission through the electrorheological fluid. A manually controllable signal generator generates a reference signal indicative of the desired transmission through the electrorheological fluid. A control amplifier responsive to the difference between the measured transmission and the reference signal changes the value of the electric field being applied across the electrorheological. The change in the electric field selected to significantly reduce the time required for the electrorheological fluid to change from its current state to the desired state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.