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EMI and EMC Testing at Kelviron Technologies Pvt. Ltd.

At Kelviron technologies our new development products are EMI and EMC Testing Products. EMI/EMC testing is a critical step in bringing a new product to market. Emissions testing – measures the amount of electromagnetic noise generated by a device during normal operation. The purpose of these tests is to ensure that any emission from the device is below the relevant limits defined for that type of device.
The terms Electromagnetic interference (EMI) and electromagnetic compatibility (EMC) are often used interchangeably when referring to the regulatory testing of electronic components and consumer goods. Any electronic device generates some amount of electromagnetic radiation. Sources of EMI can sometimes be naturally occurring environmental events, such as electrical storms and solar radiation; but more often than not, the EMI source is another electronic device or electrical system. While EMI can be generated from any electronic device, certain equipment and components – such as cell phones, welders, motors and LED screens – are more likely to create disturbances than others. Because it is rare for electronics to operate in isolation, products are generally engineered to function in the presence of some amount of EMI. This is particularly important in military-grade and avionics equipment, as well as devices requiring superior reliability in all situations. EMC is a measure of a device’s ability to operate as intended in its shared operating environment while, at the same time, not affecting the ability of other equipment within the same environment to operate as intended. Evaluating how a device will react when exposed to electromagnetic energy is one component of this, known as immunity (or susceptibility) testing. Measuring the amount of EMI generated by the device’s internal electrical systems – a process known as emissions testing – is another.
Both aspects of EMC are important design and engineering considerations in any system. Failing to properly anticipate the EMC of a device can have a number of negative consequences, including safety risks, product failure and data loss. As a result, a wide range of testing equipment for EMC and EMI has been developed to give engineers a clearer picture of how a device will operate in real-world conditions
An EMI/EMC anechoic chamber represents a substantial investment. A number of careful considerations must be weighted in an anechoic chamber project. The screened room must be designed to provide an environment free of extraneous signals. The suitable type of RF absorber must be chosen to line the entire inner surface of the shielded room in order to simulate a free-space environment with no reflection from the walls, ceiling, and floor. The test site must meet the required performance specified in EMC standards. The site voltage-standing-wave ratio (SVSWR) method is specified by CISPR 16-1-4 for test site validation. A time-domain reflectivity (TDR) method proposed by ANSI C63.4 offers numerous benefits compared to the CISPR method. It can produce equivalent values of SVSWR without physically moving the antenna, potentially more accurate in validating the chamber quietness performance, and the measurement process is much less time consuming.
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A move to e-mobility will help governments comply with global emissions targets (e.g. the Paris Climate Agreement) Electricity is one of the cleaner energy sources to use. Improved air quality through a reduction of hydrocarbons through e-mobility a carbonless alternative.

There are numerous economic benefits, such as Contribution to economic growth, Employment opportunities; Lower consumer cost the overall cost to the consumer (vehicle purchase, charging infrastructure and cost of charging) of e-vehicles is much lower than the current costs of ICE vehicles. This is especially the case where full electric vehicles are used rather than HEV and PHEV hybrid models. Add to this extra grants and incentives, such as government subsidies, lower road tax, discounts on congestion charges (in some cases), free e-vehicle parking (in some locations), and reduced e-vehicle maintenance costs.

E mobility demands innovation and this has many technological benefits such as Encourages manufacturer innovation – electric vehicle manufacturers (particularly in automotive) are vying to stay one step ahead of each other. This is particularly leading to vast numbers of new innovations such as improved energy efficiency, higher performance levels and lighter vehicles, etc. Smart power grids – as a part of e-mobility, power grids around the world are being modernized to “smart power grids”. These new power grids will deliver improved efficiency of electricity delivery “in general” and not just for e-mobility.

E mobility has numerous environmental and green friendly benefits it has less traffic film, which as we have previously written about, is expensive to clean and is unsightly. In major cities, potentially millions of fume-laden exhaust pipes can be replaced with millions of emission-free e-vehicles, reduced energy usage – e-mobility will reduce the overall energy required by electric vehicles and within the transportation sector in general, reduced noise pollution – e-vehicles dramatically reduce air noise pollution. This is in areas such as engine, tyres and wind passage noise. Infact, the noise reduction is so dramatic that manufacturers are looking for ways to increase air noise to reduce the risk to pedestrians of not hearing the impending arrival of an e-vehicle.

Kelviron Technologies has been working very closely with Ola electric, Ather Energy, Mahindra Electric and many other EV manufacturing companies. Kelviron supports e mobility and always strives to keep the environment green.

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EMI and EMC Testing