| 摘要 |
PURPOSE: A method for measuring a dynamic torque of a high speed rotating element by using single-axis load cells and a measurement balance thereof are provided to easily and economically measure the torque of the high speed rotating element by using single-axis load cells instead of an expensive three-axis load cell. CONSTITUTION: A method for measuring a dynamic torque of a high speed rotating element by using single-axis load cells(10-1,10-2,10-3,10-4) includes the steps of measuring a weight of a high speed rotating element by formula 1, obtaining coordinates of the center of gravity of the high speed rotating element by formula 2, measuring a dynamic weight of respective single-axis load cells when the high speed rotating element rotates, and obtaining a dynamic torque of the high speed rotating element by formula 3. In the formula 1, W represents a weight of the high speed rotating element, fsi represents a measured weight of ith single-axis load cell, and Wo represents a weight of an upper plate(1). In the formula 2, xc represents a coordinate of x-axis of the center of the gravity of the high speed rotating element in the stationary state. In the formula 3, Tx represent a magnitude of the torque in the x-axis direction, Ty represents a magnitude of the torque in the y-axis direction, and fdi represents a measured weight of ith single-axis load cell in the dynamic state.
|
