In a wireless power transmission system, a transmitter device, driven by electric power from a power source, generates a time-varying electromagnetic field, which transmits power across space to a receiver device, which extracts power from the field and supplies it to an electrical load. The technology of wireless power transmission can eliminate the use of wires and batteries, thus increasing the mobility, convenience, and safety of an electronic device for all users. Wireless power transfer is useful to power electrical devices where interconnecting wires are inconvenient, hazardous, or are not possible.
Wireless power techniques mainly fall into two categories, near field and far-field. In the near field or non-radiative techniques, power is transferred over short distances by magnetic fields using inductive coupling between coils of wire, or by electric fields using capacitive coupling between metal electrodes.
The purpose of the experimentalist is to understand what is a resonant transformer, the basic principle of wireless transmission, and what is an electromagnetic wave
Material: plastic, electronic components
Type: STEM toys, DIY toys
Suggested Age: 8 years and up
Package Included: 1*Electric transmitter, 1*Metal coil
Batteries: 2*AA (not included)
Warning: not suitable for children under 3 years
Note: this is a DIY kit, you need to assemble it