| 摘要 |
PROBLEM TO BE SOLVED: To provide a measuring device capable of measuring driving force or losing force with a simple method.SOLUTION: A measuring device comprises: a first strain gauge 369a and a second strain gauge 369b provided on the inner face 119 of the crank 105 of a bicycle 1; a first detection circuit 373a that is connected to the first strain gauge 369a, the second strain gauge 369b, and a constant-current power supply 374 and that detects a torsional deformation rz generated at the crank 105; and a second detection circuit 373b that is connected to the first detection circuit 373a and the constant-current power supply 374 and that detects a bending deformation y and a tensile deformation z generated at the crank 105. |
