Pressure sensing method and apparatus for gun-launched projectile
US9335230B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2014 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Oct 17, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L7/022
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of determining fluid pressure on a gun-launched projectile relies on deformation of a thin layer of a metallic material that comprises the outer layer of a segment of the projectile body. The axial segment of the projectile body that is selected for pressure measurement is altered or replaced with another axial segment. The altered segment has a thin-walled, structural, metallic sleeve that is concentric with an underlying hollow, metallic cylindrical body. The radially outermost surface of the body underlying the sleeve has a plurality of indentations formed thereon. Measurements of the deformations of the thin-walled sleeve into the indentations in the underlying body are correlated with known deformation and pressure data to determine pressure that was applied to the projectile during its ballistic cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.