Magnetic clearance sensor
US4198006A · kind A · utility
20Cited by
13References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1978 |
| Grant date | Apr 15, 1980 |
| Priority date | — |
| Expiry date | Oct 30, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Magnetic-electronic apparatus for sensing the clearance between two ferrous metals, for application in measuring the clearance between a shear bar and the cutting knives of a harvesting farm machine, is disclosed having a magnetic sensor disposed within the shear bar for producing a magnetic field, the interception of which by the passage of a knife produces an electronic signal which is processed by appropriate circuitry for indicating the clearance between the knives and the shear bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.