Micro flow measuring device and method based on mass method
US12405145B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 6, 2025 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | Jan 6, 2045 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F15/185
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention discloses a micro flow measuring device and method based on a mass method. The measuring device includes: an inner anti-evaporation cover; an outer anti-evaporation assembly; a weighing balance; a liquid collecting container; a packing assembly, disposed in the liquid collecting container, where the packing assembly is made of a material with low water absorption and can be gas-permeable, and an accommodating cavity configured to accommodate to-be-measured liquid is formed between a lower end of the packing assembly and a bottom portion of the liquid collecting container; a capillary receiving tube, where an upper end and a lower end of the capillary receiving tube are provided with a liquid receiving opening and a liquid discharging opening respectively, the lower end of the capillary receiving tube passes through the packing assembly vertically and extends into the accommodating cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.