Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2011-08-23
2011-08-23
Phan, Huy (Department: 2858)
Electricity: measuring and testing
Magnetic
Displacement
Reexamination Certificate
active
08004277
ABSTRACT:
An angular position sensor (100) for determining angular position includes a shaft (105) having a threaded portion (108), and a structure for engaging an external application (119). The shaft (105) includes a first permanent magnet (114). A nut (116) is threaded on the threaded portion (108). The nut (116) is formed from a first magnetic permeable material or includes a second permanent magnet (118). At least one constraint (122) is coupled to the nut (116) for preventing rotational movement of the nut (116) while allowing linear motion of the nut (116). A first magnetic sensor (120) is positioned along a length of the threaded portion (108) of the nut (116) for measuring a linear position of the nut (116). A second magnetic sensor (124) is provided for measuring an angular position of the shaft (105). Signal processing circuitry (130) is coupled to receive outputs from both the first magnetic sensor (120) and second magnetic sensor (124) for calculating a parameter relating to an angular position of the rotatable member.
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Ibrahim Nurul H.
Patil Swapnil G.
Raj Azhagar
Ramamurthy Gautham
Honeywell International , Inc.
Nguyen Trung Q
Phan Huy
Shumaker & Sieffert P.A.
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