A simulator to reproduce fast rise-up noises which are generated when switching ON / OFF electric current on the inductive load. 

It can be used for performance evaluation of electronic equipment upon reproduction of line noises which are intruded to the power supply lines or induced noises onto the telecommunication lines.

High-frequency noise with a quick rise may occur accidentally due to the release of an inductive load such as discharge between the contacts of a switching device or the arc discharge generated from an electronic motor.
These noises travel through the power supply line and directly invade the electronic device, or guide and invade the signal lines that run close / parallel, and are combined with the circuit or board pattern of the electronic device to reflect.
It may cause resonance, amplification, etc., and cause the IC inside the electronic device to malfunction.

The INS series and FNS series of the NoiseKen are testers for simulating and generating this type of noise to evaluate the resistance and performance of electronic devices.
The FNS series complies with the IEC 61000-4-4 EFT/B test standardized by the IEC (International Electrotechnical Commission).
For the INS series, several guidelines such as NECA (Japan Electrical Manufacturers Association) and JEMA (Japan Electrical Manufacturers' Association) have been issued.