Apparatus and method for measuring pressure changes within pressure vessels
US5185709A · kind A · utility
6Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1991 |
| Grant date | Feb 9, 1993 |
| Priority date | — |
| Expiry date | Feb 1, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/083
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus and methods for detecting pressure changes within the chamber of a pressure vessel are disclosed. The apparatus includes a pressure transducer which is gauge-referenced to atmospheric pressure and has bi-directional capability of determining pressure changes above and below atmospheric pressure. The transducer is structured to provide frequency output and is therefore connected directly to a microprocessor. The microprocessor includes structure programmed to compensate for variations in existing ambient atmospheric pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.