Level indicator for pressure vessels
A liquid-level monitor for tracking the level of a coal slurry in a high-pressure vessel including a toroidal-shaped float with magnetically permeable bands thereon disposed within the vessel, two pairs of magnetic-field generators and detectors disposed outside the vessel adjacent the top and bottom thereof and magnetically coupled to the magnetically permeable bands on the float, and signal-processing circuitry for combining signals from the top and bottom detectors for generating a monotonically increasing analog control signal which is a function of liquid level. The control signal may be utilized to operate high-pressure control valves associated with processes in which the high-pressure vessel is used.
- DOE Contract Number:
- AI22-80PC30258
- Assignee:
- EDB-83-046368
- Application Number:
- ON: DE83006900
- OSTI ID:
- 6612944
- Country of Publication:
- United States
- Language:
- English
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