Electric and magnetic fields (EMF) are areas of energy generated by the movement of electric charges. Electric fields are created by voltage, the force that pushes charged particles, while magnetic fields result from the flow of current.
EMF travel in the form of waves and are characterised by their energy, frequency and wavelength. These three characteristics are related via scientific equations.
These fields are an inherent part of the natural world (the Earth’s magnetic field that makes a compass point North) and are also produced by human-made sources like power lines, electrical appliances, and radios. Another prevalent example is the nearly constant operation of wireless local networks (WiFi). Humans are constantly exposed to EMF energy.
The electromagnetic spectrum
The electromagnetic spectrum, pictured here, encompasses every potential frequency of electromagnetic energy, from extremely low, such as a radio signal, to ultraviolet light emitted by the sun, to high-frequency gamma rays.
High-frequency EMF such as X-rays and Gamma rays are within the ionising radiation segment of the electromagnetic spectrum, where there exists the potential to directly influence DNA or cells. These are often used in therapeutic radiation and for other medical purposes.
Below this, the lower-frequency EMFs are not known to damage DNA or cells directly, and are utilised for many different applications: Wifi, Microwaves, Radio, TV Broadcast, etc..
Coil Pro operation
The Coil Pro has been designed to generate a magnetic field on defined frequencies on each of its three axis by driving a known current to flow through the X, Y, and Z windings inside the device. The electronics design ensures frequency stability, controlled by a crystal. This is critical in the Coil Pro system for performance reasons, but it also ensures full and precise control over the EMF generated.
The Coil Pro operates in the lower frequency end of the spectrum, around 20kHz
When we refer to EMF generated by household appliances, the EMF signal becomes significantly weaker at a distance. The magnetic field strength of the Coil Pro, for example, diminishes by the inverse cube of the distance from the device.
In regular operation when capturing motion with the Coil Pro, users will maintain a very safe distance due to the inherent “saturation zone” close to the product, where performance for capture is diminished. This is to say, that there is an added factor of exposure safety during regular use, where field strengths are much lower than what is measured 0cm from the device. This same field-strength diminishing principle is the reason why the Coil Pro has a maximum range that the user can be away from the product, as the field strength is so weak at large distances that it can no longer be utilised for global positioning. We recommend users to operate outside of the saturation distance (visualised in Studio) for performance and safety reasons, as well as to keep the device stationary (as it is the global origin, you probably don’t want that moving), and only interact with it when powering up.