Miniaturized displacement transducer assembly
US5777467A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1996 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Jan 24, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The novel differential variable reluctance transducer assembly is comprised of an ultra miniaturized device encased in stainless steel. The assembly contains a free sliding, magnetically permeable core and two coils surrounding the core. A split ring mounting adapter system allows for a variable gauge length and interchangeable mounting pins. A highly flexible core carrier tube and support wire allows for significant bending without failure, does not interfere with the coils detection of the core, and protects the core from corrosion. A sleeve strain relief sheath has been incorporated with the sensor to avoid excessive strain to lead wires during and after installation. The position of the core is detected by measuring the coils' differential reluctance and transmitted by means of wires or telemetry to measuring equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.