Sensing device for detecting material depth, liquid-level, and temperature
US8950255B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2012 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Apr 19, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/268
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensing device can detect material depth, liquid-level, and temperature. The sensing device has a probe, a control module, a volume sensing module, a thermal sensing module, an output module, and a power module. The probe has two material electrodes connected to the volume sensing module and a thermal electrode connected to the thermal sensing module. A rated voltage is applied at the material electrodes based on radio frequency admittance. A current deviation of the material electrodes is obtained by the volume sensing module, and calculated via the control module by material characteristics to obtain a correct storage amount of material. A temperature at each material depth is correctly detected by the thermal electrode. Steel cable is used as the material of the material electrodes of the probe to detect material depth or liquid level with high impact resistant ability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.