In contrast to radiative systems or radio, in inductive systems the distance-range is not optimized but limited to a clearly defined area by the size and shape of the inductive antenna.
At far distance the magnetic field will reduce sharply with distance, in contrast to radiative- or far field- systems where magnetic field will decay proportional to distance.
With optimum antenna-design, the far-field-component is almost zero, and interference to nearby systems on same frequency is prevented.
Representative applications are RFID (RF-Identification) – and EAS (Electronic Anti Shoplifting)- systems, but also inductive sensors for various applications.
Precise remote measurement magnetic of distance, position or movements of tags or metal objects, is one application of inductive sensors.
We constructed inductive sensing systems for converting the exact position of metal tags in 2D- or 3D within a limited space to 2 or 3 linear signals.
With Wireless Power Transfer batteries in many semi-portable devices can be replaced or recharged without cables, in a strong magnetic field from a low loss transmit-coil.
A special inductive sensor is our Remote Temperature Sensor (DTM) . Via an isolated tag with a passive LC-circuit, temperature (or other parameters) can be monitored in real time. Measurement of temperature is possible in separate or isolated places outside the range of optical IR-sensors, and with extreme temperatures beyond range of active semiconductor sensors.
REBIX can design inductive components for any inductive system, from special transformers to magnetic antenna´s for odd applications.