System and method for determining fluid level in a container
US4248087A · kind A · utility
31Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1979 |
| Grant date | Feb 3, 1981 |
| Priority date | — |
| Expiry date | Aug 16, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/2962
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and systems employing acoustic techniques are disclosed for determining the level of fluid in a container. Flexural mode acoustic waves are set up in the walls of the container. The change in travel time of flexural mode acoustic waves are measured and calibrated in terms of the level of fluid in the container. Systems for continuously monitoring fluid level or indicating when fluid level reaches a predetermined horizontal level are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.