Fluid level detection apparatus, fluid level detection method, and computer-readable medium containing fluid level detection program
US11385094B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2020 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Sep 19, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/296
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluid level detection apparatus includes a vibrator, a vibration sensor, and a controller. The vibrator is configured to apply a vibration to a container that contains a fluid. The vibration sensor is configured to detect a vibration wave that is generated by the vibrator and propagates through the container. The controller is configured to control an operation of the vibrator and perform arithmetic processing on a detection signal obtained from the vibration sensor. The vibrator and the vibration sensor are provided on an outer wall surface of the container at respective positions that interpose, from above and below, a fluid level of the fluid provided in the container. The controller is configured to calculate a height of the fluid level, on the basis of the vibration wave detected by the vibration sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.