Hydraulic piston position sensor
US6588313B2 · kind B2 · utility
28Cited by
117References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2001 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Nov 19, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B15/2869
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A piston position in a cylinder of a hydraulic assembly is measured using microwave pulses. The microwave pulses are launched along a conductor coupled to the piston or cylinder. A sliding member is slidably coupled to the conductor and moves with the piston or cylinder. Position is determined as a function of a reflection from the end of the conductor and the sliding member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.