System for continuous monitoring of the density of cryogenic liquids via dielectric constant measurements
US3933030A · kind A · utility
25Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1974 |
| Grant date | Jan 20, 1976 |
| Priority date | — |
| Expiry date | Sep 9, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N9/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system has been invented for the continuous determination of density of cryogenic liquids such as LPG and LNG to within .+-. 0.1% or better using differential capacitance measurements. This system would allow the detection of incipient density inversions in storage tanks and the accurate determination of quantities transferred from ship to shore to customers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.