ฉันรักการแปล
operationThe schematic structure of the proposed frequency up-converted EM energy harvester is shown in Fig. 1. It consists ofa rectangular channel having an opening at the center of its bot-tom wall. A freely moveable non-magnetic ball is placed inside thechannel. A proof-mass with parabolic top surface is attached at thecenter of one side of a fixed–fixed cantilever beam that works as thespring-mass-damper system. The beam is assembled in such a waythat the parabolic top surface of the proof-mass can be positionedthrough the opening at the bottom of the rectangular channel. Acylinder magnet is attached to the cantilever, opposite to the massand a pick-up coil is also placed below the magnet, on the bottomcover of the device structure.