Measuring and testing – Speed – velocity – or acceleration – Acceleration determination utilizing inertial element
Patent
1988-08-18
1990-11-06
Chapman, John
Measuring and testing
Speed, velocity, or acceleration
Acceleration determination utilizing inertial element
73DIG3, G01P 1508
Patent
active
049675982
ABSTRACT:
An acceleration sensor including a cantilever beam having a free end to which a permanent magnet is attached. A pair of magnetic sensors, each comprising a barber-pole type magnetoresistive sensing element, is arranged in symmetrically spaced and opposed relationship and in a common plane extending parallel to the magnetic flux of the permanent magnet with respect to respective, opposite sides of the magnet. The cantilever is bent and the magnet is moved accordingly in response to an acceleration force, which is detected as outputs from the magnetoresistive sensing elements.
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Endoh Michiko
Kurashima Shigemi
Shimizu Nobuyoshi
Tanaka Akira
Wakatsuki Noboru
Chapman John
Fujitsu Limited
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