Wireless electricity

1987/04/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria

• Elektronika
• Fisika

The motionless handling of electricity, the removal of wires and plugs, is possible through systems that use common physical principles. Their application requires the choice of the right time, as these systems must be applied when they are economically accessible and willing to be accepted by consumers.

Innovations already exist in a few years that can drastically alter the distribution and installation of electricity.

One of them is the so-called electric source. The electric source consists of two elements, a emitting power powered by a high-frequency electronic circuit and a receiver located in the current consumer. The transmitter and receiver use a coil enclosed in a magnetic core. When a tool (and the coil it contains) is placed at the height of the emission coil, between the two coils a magnetic induction flow is generated that produces an electromotive force in the tool. The transmitter is small (small size of cheese) and can be disguised anywhere. The receiving coil can be easily concealed in the lamp feet and inside the tools.

The second, called "Consor", eliminates the wires between electrical appliances and switches. Switching devices by radio waves. Teleming and electrical equipment work on the same radio frequency. The transmitter (telemando) is powered by a 9V battery with a minimum consumption. To broadcast the radio it is enough, as in conventional telemandos, to press the button. While in conventional telemandos it is necessary to be in front of the apparatus when pressing the control, in this case it is not necessary.

Obstacles do not stop the radio. The capacity of telecontran by radio waves is 25 m in closed places and 50 m in open spaces. Therefore, you can turn off the bathroom light, start the kitchen oven or turn on the room heating.

Each electrical appliance must include a receiver. In addition, in each of them a specific code will be established for each sender/receiver, so that they only work with the telemando of the house. If not, and since all telemandos work at the same frequency, when you turn on your TV, you can accidentally start the washing machine next door.