Magnetostrictive displacement transducer with phase shifted bias burst
US8054066B2 · kind B2 · utility
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22References
21Claims
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Key dates
| Filing date | Dec 14, 2007 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Apr 26, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/485
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An assembly includes a magnetostrictive transducer that provides a transducer output. Amplifier circuitry receives the transducer output and generates a transducer output burst and a bias output burst. The transducer output burst and bias output burst overlap in time and differ by a phase difference. A burst processor receives the transducer output burst and the bias output burst. The burst processor provides a displacement output that is a function of a time when the transducer output burst and the bias output burst are at the same voltage level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.