Sensor for measuring liquid-level changes in storage tanks
US5146784A · kind A · utility
16Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1991 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | Mar 4, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/3245
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The improved device for measuring liquid-level changes in storage tanks uses a float to track vertical displacement of the surface of a liquid and a linear variable differential transducer (LVDT) sensor positioned below the surface of the liquid to measure changes in the surface level. The center of gravity of the device is located below the center of buoyancy, thereby minimizing instability of the LVDT sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.