| 摘要 |
A device for measuring both force and kinetic energy includes a first cylindrical tube with one end closed, which tube is positioned over a calibrated spring that has one of its ends adjacent the closed end of the first tube. The other end of the spring extends beyond the open end of the first tube and is received within a second cylindrical tube mounted to slide over the first tube and having one closed end adjacent the other end of the spring. For measuring kinetic energy an indicator member is positioned about the first tube in such a manner that it is displaceable by contact with the open end of the second tube during compression of the spring and remains on the first tube at the point of maximum displacement when the compression of the spring is relieved. The position of the indicator with respect to the first tube is a measure of the kinetic energy that compressed the spring and the position of the second tube with respect to the first tube is a measure of that static compression force on the spring.
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