Photoelectric-type continuous liquid level measurement method and device
US9194733B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2012 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Sep 29, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A photoelectric-type continuous liquid level measurement method is applied to a photoelectric-type continuous liquid level measurement device which comprises at least one sensor module formed by cascading a plurality of sensors, and comprises: driving the sensors one by one from bottom to top to take a liquid level measurement; after detecting the light intensity of a detection light returned from the position where the sensors are located, the sensors which are currently in a driving state conducting analog-to-digital conversion on a voltage value corresponding to the detected light intensity to obtain current analog-to-digital conversion data; according to the correlation between a preset liquid level and the analog-to-digital conversion data, determining the liquid level of the position where the sensors are located; and summarizing to a transmitter module the liquid level measured by each of the sensors to obtain the total liquid level of a currently measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.