METHOD AND MODULE FOR MEASURING ROTATION AND PORTABLE APPARATUS COMPRISING THE MODULE
First Claim
1. A rotation measuring module is used to measure the rotation of a target object, and the rotation measuring module comprises of:
- a first sensor, installed at one first location of the target object so that when the target object is rotating, it can sense a first centripetal acceleration and a first tangential acceleration;
a second sensor, installed at a second location of the target object so that when target object is rotating, it can sense a second centrifugal acceleration and a second tangential acceleration; and
a processor, which is connected respectively to the first sensor and the second sensor so as to receive from the first sensor the first centripetal acceleration(aC) and the first tangential acceleration(aT), and to receive from the second sensor the second centrifugal acceleration and the second tangential acceleration;
meanwhile, the processor follows the following equation 1 and 2 to calculate respectively the angular velocity (ω
) and the angular acceleration (α
) of the first location and the second location;
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Abstract
The invention discloses a method and a module for measuring rotation and a portable apparatus comprising said module. The module of the present invention is adapted for measuring rotation of a target, and the module includes a first sensor, a second sensor and a processor. The first sensor is disposed at a first location of the target, for sensing a first centripetal acceleration and a first tangential acceleration when the target is rotated. The second sensor is disposed at a second location of the target, for sensing a second centripetal acceleration and a second tangential acceleration when the target is rotated. The processor is coupled to the first sensor and the second sensor, for receiving the first centripetal acceleration and the first tangential acceleration from the first sensor, receiving the second centripetal acceleration and the second tangential acceleration from the second sensor, and calculating the rotation angle of the target accordingly.
5 Citations
12 Claims
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1. A rotation measuring module is used to measure the rotation of a target object, and the rotation measuring module comprises of:
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a first sensor, installed at one first location of the target object so that when the target object is rotating, it can sense a first centripetal acceleration and a first tangential acceleration; a second sensor, installed at a second location of the target object so that when target object is rotating, it can sense a second centrifugal acceleration and a second tangential acceleration; and a processor, which is connected respectively to the first sensor and the second sensor so as to receive from the first sensor the first centripetal acceleration(aC) and the first tangential acceleration(aT), and to receive from the second sensor the second centrifugal acceleration and the second tangential acceleration;
meanwhile, the processor follows the following equation 1 and 2 to calculate respectively the angular velocity (ω
) and the angular acceleration (α
) of the first location and the second location; - View Dependent Claims (2, 3, 4, 5, 6, 11, 12)
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7. A rotation measuring method, which is applicable to the measurement of the rotation of a target object, and the rotation measurement method comprises of the following steps:
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(a) When the target object is rotating, at one first location of the target object, a first centripetal acceleration and a first tangential acceleration will be sensed, and at the second location of the target object, a second centrifugal acceleration and a second tangential acceleration will be sensed; (b) The first centripetal acceleration(aC) and the first tangential acceleration(aT), and the second centrifugal acceleration and the second tangential acceleration will be received respectively; (c) According to the following equation 1 and 2, the angular velocity (ω
) and angular acceleration (α
) of the first location and the second location will be calculated respectively; - View Dependent Claims (8, 9, 10)
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Specification