Measuring and testing – Dynamometers – Responsive to torque
Reexamination Certificate
2005-08-30
2005-08-30
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Dynamometers
Responsive to torque
Reexamination Certificate
active
06935195
ABSTRACT:
A rotational angle detecting apparatus wherein one or more first targets3aare provided on a steering shaft13so that first detecting means1A outputs a detection signal as the steering shaft13rotates, second detecting means1B outputs a detection signal having a phase different from that of the detection signal of the first detecting means1A, and the rotational angle of the steering shaft13is detected on the basis of the detection signals outputted by the first detecting means1A and the second detecting means1B. A rotational angle detecting apparatus further comprising second targets3b, the number of which is prime to the number of the first targets3a, provided on the steering shaft13, third detecting means3A, disposed opposite to the second targets3b, for outputting a detection signal as the steering shaft13rotates, and fourth detecting means3B for outputting a detection signal having a phase different from that of the detection signal of the third detecting means3A, wherein the rotational angle of the steering shaft13is detected on the basis of the detection signals outputted by the first to fourth detecting means1A,1B,3A and3B, thereby being capable of detecting an absolute rotational angle.
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Maeda Naoki
Shiba Mahito
Tokumoto Yoshitomo
Darby & Darby
Koyo Seiko Co. Ltd.
Lefkowitz Edward
Miller T
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