Electromagnetic Interference (EMI) & Electromagnetic Compatibility (EMC)

INTRODUCTION

¢ EMI-

It consists of any unwanted conducted or radiated signals of electric origin that can cause degradation in system or equipment performance.

¢ EMC-

It is the ability of the system to function as designed without any degradation in performance due to EMI with in the operational environment


Classification of EMI

¢ INTRASYSTEM EMI-

EMI problems with in the system one is dealing with.

¢ INTERSYSTEM EMI-

EMI problem ....etc

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a. Real time Clock SPI Interface.
b. Auto Dialer.
c. Automatic EB Billing.
d. Access Control System Voice Output.
e. Ultrasonic based distance measurement.
f. IR communication with Manchester encoding/decoding.
g. RF communication with Manchester encoding/decoding.
h. Dot matrix scrolling display.
i. Winding machine control.
j. Automatic street lamp operating.
k. Home security system.
l. Study of SPI interface.
m. Study of IC interface.
n. Braille machine for blind.
o. Multipurpose on/off timer module with loss regai ....etc

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1. Finger Print Based electronic passport system
2. Finger Print based Bank Locker System
3. Finger Print based Driving License Management System
4. Finger Print Based Voting System for Rigging-free Governing
5. Finger Print based Access Control System
....etc

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Abstract:
IEEE is currently standardizing a new high-speed backbone technology for MANs--Resilient Packet Ring (RPR). A key performance objective of RPR is to achieve high utilization, spatial reuse, and fairness simultaneously. However, the algorithms proposed in current draft standards have some critical limitations. As shown in unbalanced traffic scenario, drafts RPR algorithm will suffer from dramatic bandwidth oscillations within nearly the entire range of the page link capacity. In this paper, we propose a new dynamic ....etc

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