| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a physical quantity measuring instrument for a gear transmission device having a structure capable of measuring a direction and magnitude of torque transmitted by the gear transmission device by measuring a displacement direction and a displacement quantity of a gear 4a constituting the gear transmission device. <P>SOLUTION: In a physical quantity measuring device for a gear transmission device, detector units for a pair of sensors 7a and 7b are placed facing each other in a radial direction and an axial direction respectively with respect to teeth 5a formed on an outer end face of a helical gear 4a engaged with another gear. The gear 4a is axially displaced with transmission of torque. A phase difference that is present between output signals of the sensors 7a and 7b varies according to the direction and magnitude of the torque transmitted by the gear transmission mechanism. Consequently, the torque is obtained based on the phase difference. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
