Measuring and testing – Speed – velocity – or acceleration – Acceleration determination utilizing inertial element
Reexamination Certificate
2007-12-11
2007-12-11
Kwok, Helen (Department: 2856)
Measuring and testing
Speed, velocity, or acceleration
Acceleration determination utilizing inertial element
Reexamination Certificate
active
10110007
ABSTRACT:
The accelerometer uses magnetic transducer technology. A mass-block, mounted to a base by an elongate member (shaft), moves relative to the base due to accelerations. The elongate-member has at least one magnetised transducer region (circumferential or longitudinal), which emanates a magnetic field as a function of member flexure due to acceleration of the mass-block. A sensor adjacent the transducer detects the field and derives a acceleration-representing signal. Alternatively, a mass-block is mounted to a central hub of a disc which is radially secured and has an intermediate region that flexes in response to acceleration. The intermediate region is magnetised to provide the magnetic transducer element. Otherwise, the mass-block is supported in an aperture of a reference-base by cores of inductors. The core permeability is a function of the compressive tensile forces on the cores due to acceleration of the mass-block. Resulting acceleration-dependent inductance changes provide signals for deriving an acceleration-representing output.
REFERENCES:
patent: 2643869 (1953-06-01), Clark
patent: 3867844 (1975-02-01), Shimizu et al.
patent: 3877314 (1975-04-01), Bernin
patent: 4144765 (1979-03-01), Aske
patent: 4322973 (1982-04-01), Iwasaki
patent: 4372520 (1983-02-01), Shutt
patent: 5275049 (1994-01-01), Schiessle et al.
patent: 5351555 (1994-10-01), Garshelis
patent: 5465627 (1995-11-01), Garshelis
patent: 5520059 (1996-05-01), Garshelis
patent: 5580084 (1996-12-01), Gioutsos
patent: 6131457 (2000-10-01), Sato
patent: 1833501 (1991-06-01), None
patent: WO 99/1150 (1999-04-01), None
patent: WO 99/21151 (1999-04-01), None
patent: WO 99/56099 (1999-11-01), None
patent: WO 01/13081 (2001-02-01), None
Abas, Incorporated
Blank Rome LLP
Kwok Helen
LandOfFree
Accelerometer using magnetic transducer technology does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Accelerometer using magnetic transducer technology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Accelerometer using magnetic transducer technology will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3880368