Measuring and testing – Speed – velocity – or acceleration – Acceleration determination utilizing inertial element
Patent
1995-05-25
1996-06-11
Williams, Hezron E.
Measuring and testing
Speed, velocity, or acceleration
Acceleration determination utilizing inertial element
7351431, 32420716, 32420717, 336200, 336232, G01P 1500, G01P 1508
Patent
active
055244904
ABSTRACT:
An inductive sensing element for sensing displacement of a resilient flexible beam or diaphragm. The inductive sensing element comprises an open faced member and a closed faced member one of which is attachable to the flexible beam and the other of which is attachable to a stationary member. The parameters of both the open and closed faced members are selected so that the self-inductance of the open faced member is determined by the overall distance separating the members. Both the open and closed faced members have a magnetic coating and the open face member further comprises an electrically conductive coating arranged in a predetermined pattern on its magnetic coating. The self- inductance of the open faced member, in particular, the predetermined pattern, is dependent upon the magnetic coating on the open faced member and the magnetic contribution that the magnetic coating of the closed faced member makes to the magnetic coating of the open faced member which, in turn, is dependent upon the overall distance separating the open and closed faced members.
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Lautzenhiser Frans P.
Sarma Dwadasi H. R.
Delco Electronics Corporation
Moller Richard A.
Navarre Mark A.
Williams Hezron E.
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