- Kplus - constant range for all metals
- Technology
Kplus technology overview
Basic inductive technology is influenced by the target material. Some are more difficult to detect and the sensor must be moved closer to the target by a correction factor (K). For standard inductive sensors, the correction factor due to material is shown below.
With a novel, patented coil structure and electronics optimized for noise immunity, ifm has developed the Kplus family of inductive products that sense all metals at the same range – no correction factor! Stated another way, K = 1.
Patented coil design and operating principle
There are two evaluation coils, a transmitting and receiving coil system with a known relative field strength between UR1 and UR2. The coupling factor of the coils is evaluated internally. When an electrically conductive target enters the field, the coupling factor between the two coils changes accordingly. The change of the coupling factor is converted into a switched output. By not using a ferrite core, the Kplus inductive sensors are less sensitive to interference caused by strong magnetic fields.
Benefits and applications:
- Obtains very long sensing ranges on any target material.
- Immune to electromagnetic fields created by the welding process.
- Competitively priced to be your go-to switch for all of your applications.
- Poor performance on small or thin targets (targets smaller than the sensing face.)