Browse Definitions :
Definition

electromagnetic pulse (EMP)

An electromagnetic pulse (EMP) is an intense burst of electromagnetic (EM) energy caused by an abrupt, rapid acceleration of charged particles, usually electron s. An EMP can contain energy components over a large part of the EM spectrum , from very-low-frequency ( VLF ) radio to ultraviolet ( UV ) wavelength s.

A lightning strike produces a localized EMP that gives rise to large electrical current s in nearby wires. A single current surge can damage sensitive hardware such as computers and peripherals. All electronic and communications systems should have some form of protection against the effects of an EMP. Transient suppressors, also called surge protector s, AC outlets, and modem jack s offer limited protection against the EMPs that occur during thundershowers. The best method of protection is to unplug AC cords and modem lines of computers when they are not in use.

The detonation of a hydrogen bomb at a high altitude generates a powerful EMP over a large geographic area. This induces damaging electrical currents in wireless antennas, telephone lines, and utility wires. A strategic nuclear weapon used in this way, for the purpose of disrupting the communications and/or electrical infrastructure, is called an electromagnetic bomb .

This was last updated in March 2011

Join the conversation

1 comment

Send me notifications when other members comment.

Please create a username to comment.

Can a electromagnetic pulse used in electromagnetic coil guns. I am trying to design one.

Prem <a href="www. emmadeeasy.blogspot.com ">Hayt Electromagnetics</a>
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • risk management

    Risk management is the process of identifying, assessing and controlling threats to an organization's capital and earnings.

  • compliance framework

    A compliance framework is a structured set of guidelines that details an organization's processes for maintaining accordance with...

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

SearchSecurity

  • DNS over HTTPS (DoH)

    DNS over HTTPS (DoH) is a relatively new protocol that encrypts domain name system traffic by passing DNS queries through a ...

  • integrated risk management (IRM)

    Integrated risk management (IRM) is an approach to risk management that uses a set of practices and processes to improve an ...

  • MITRE ATT&CK framework

    The MITRE ATT&CK (pronounced 'miter attack') framework is a free, globally accessible service that provides comprehensive and ...

SearchHealthIT

  • telemedicine (telehealth)

    Telemedicine is the remote delivery of healthcare services, such as health assessments or consultations, over the ...

  • Project Nightingale

    Project Nightingale is a controversial partnership between Google and Ascension, the second largest health system in the United ...

  • medical practice management (MPM) software

    Medical practice management (MPM) software is a collection of computerized services used by healthcare professionals and ...

SearchDisasterRecovery

SearchStorage

  • M.2 SSD

    An M.2 SSD is a solid-state drive (SSD) that conforms to a computer industry specification and is used in internally mounted ...

  • kilobyte (KB or Kbyte)

    A kilobyte (KB or Kbyte) is a unit of measurement for computer memory or data storage used by mathematics and computer science ...

  • virtual memory

    Virtual memory is a memory management capability of an operating system (OS) that uses hardware and software to allow a computer ...

Close