Method and device for measuring magnetic particles in a fluid
US4686469A · kind A · utility
22Cited by
9References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 12, 1985 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | Aug 12, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/0656
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and device for measuring the amount of magnetic particles in a fluid such as ferrous wear particles in the lubricant of a machine. The particles are entraped by contacting a volume of the fluid with a means to entrap the particles and magnetized by subjecting the entraped particles to a magnetic field. The amount of magnetic particles entraped is measured by measuring the magnetization of the entraped and magnetized particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.