Technical equipment and systems need power, but electricity can only be stored in small quantities. If wired power is the preferred option, the cables often get in the way. One remedy is provided by systems based on induction or radio waves. But the cost of such systems is mostly greater than their benefit. A new method of "free" power transmission is setting new standards in terms of efficiency and space-saving. It enables actuators and sensors in industrial applications and technical systems to be powered conveniently and at low cost, continuously or discontinuously depending on requirements.
Wired supply is essential in many applications subject to high power demand. But thanks to MOSFET technology and energy-saving components, modern-day sensors and miniature drives and circuits are highly efficient. They are easily able to work with „maximum“ power outputs in the triple-digit milliwatt range. Though batteries are capable of supplying this power, their size is then usually many times greater than the useful energy they provide. Also, galvanic primary and secondary elements are not reliable in continuous duty over longer periods of time; they are simply used up too quickly, or age too rapidly. Power transmitted by radio waves leaves most of the input energy unused, often then causing interference in the surrounding area, and it is also unable to transmit power into a Faraday‘s cage – that is to say, any technical equipment inside a metal housing. Inductive systems, for their part, work only with very tight coil spacing, and so are limited in range. A new process devised by Triple Sensor Technologies GmbH (TST) based in Jena, Eastern Germany, bypasses the limitations of the familiar chemical and physical energy storage and transmission methods.