功率
能量传递给负载或转化为热量的速率。如果热量产生在叠堆中，这部分热量将被浪费掉。
一般而言，传递给负载的功率会随变幅杆振幅、变幅杆接触面积或接触力的增大而增大。传递的功率还取决于负载的特性，而负载特性可能随超声波的施加而变化（例如在塑料焊接过程中）。
Power
The rate at which energy is transferred to the load or is transformed into heat. This heat will be wasted if it occurs in the stack.
In general, the delivered power to the load will increase with an increase in horn amplitude, horn contact area, or contact force. The delivered power also depends on the characteristics of the load, which may change as sonics are applied (e.g., during plastic welding).