| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
This work provides a method to evaluate torque of spherical motor while it is rotating. Compared to common one-axis motors, spherical motors have three degree of freedom, meaning rotation around arbitrary axis by combining three axes rotation. The torque also has three DOFs, which may not coincide with rotational axis. However, to the best knowledge, there is no way to measure all DOFs simultaneously while it is required for evaluation of spherical motor including power and efficiency. Therefore, for our developing spherical induction motor, the proposed method was developed by combination of 6-axis force/torque sensor and drive mechanism that rotates the rotor externally.
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