Method and apparatus for remote measurement of physical properties inside a sealed container
US6499353B1 · kind B1 · utility
15Cited by
24References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2000 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Oct 18, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K2215/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and an apparatus for measuring the pressure or other physical quantities of a gas or a liquid in a sealed container without penetrating the container. Two permanent magnets, one located on a sensing unit inside the container and one located on a readout unit located outside the container are used to communicate the magnitude of the pressure sensed inside the container to the readout unit. No power supply is required to implement this system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.