EMI/EMC till the 1970s, was a challenge faced only in defence applications as they operated exclusively in the RF spectrum (with exception of Radio and Television). But over the years, various kinds of electronic equipment have emerged both in the military and commercial space. This has led to greater susceptibility to EMI/EMC in defence applications.
Military standards of EMI/EMC emission and immunity are much higher when compared to commercial applications because there is no room for error or failure. Harsh weather conditions (lightning, solar flares, floods, earth-quakes) and man-made threats (nuclear explosions, war) on military installations lead to very strict performance and reliability requirements. Testing the equipment on site is also critical to military usage.
Nowadays, even some industrial applications have been adopting stringent military standards of EMI/EMC compliance for safeguarding their equipment.
Commercial-military equipment integration provides opportunities for faster and lower costs in the development of military equipment. Commercial off-the shelf (COTS) use also provides access to a much larger industrial base.
Both RF emissions and susceptibility testing must be conducted in a strictly controlled environment such as an anechoic chamber, reverberation chamber, or open-air test site (OATS). This level of control is necessary to ensure the safety of test personnel from inadvertent exposure to the RF energy and also, to ensure that test results are not contaminated by incidental RF energy in the ambient environment.
25% of EMIS business is related to the defence sector. EMIS holds a pre-eminent position in providing comprehensive EMI/EMC solutions to military applications.
EMIS has a state-of-the-art R&D Lab recognised by DSIR (Department of Scientific and Industrial Research, Government of India).
Is accredited by the National Accreditation Board for Testing and Calibration Laboratories in accordance with the standard ISO/IEC 17025:2017.
We also support on-site testing in compliance with international standards.
We have a wide range of input filters to reduce conducted and radiated EMI. Our product range also meets requirements concerning EMI susceptibility which support the entire frequency spectrum. We deliver associated products for adequate grounding, shielding and cabling to manage radiated emissions. Our facility filters comply with the highest international standards of conducted and radiated emission tests.
EMIS has a strong presence in solutions for HEMP (High altitude Electromagnetic Pulse). EMP causes malfunction of electronic systems by overloading the circuits, which can be extremely detrimental to military installations. The level of destruction depends on the magnitude and location of the strike.
Depending on the installation site and application, several components are available for EMI protection.