Scanner

The scanner (pronounced [ˈskɛnɐ], from English scanner for scanner or 'reader') denotes:


Devices for contactless digital data acquisition:

  • Bar code reader, device for optically scanning bar codes
  • Devices (scanners) such as flatbed or slide scanners for the optical digitization of reflective and transparent originals, see Scanner (data acquisition)
    • Document scanner - for (partially) automated optical digitization of large quantities of documents
    • Transmitted light scanner - where the light is not shone against the surface to be scanned, but is passed through it.
  • Film scanner - Device for scanning motion picture films and other film material and converting them into an analogue or digital video signal.
  • Laser scanner - for capturing surfaces by means of laser beams, see laser scanning


Devices for non-contact systematic scanning:

  • Devices for detecting hidden goods, see scanners (security technology)
    • Body scanners (also called nude scanners) - various devices that can image a person's body as well as items under clothing
  • Radio scanner - a device that continuously scans various radio frequencies for signals.


Applications (or computer programs/software) [originally probably for sampling or reading the underlying data]:

  • Ports scanner - to check which services a network device (e.g. a PC) offers
  • Virus scanner - for searching and eliminating computer viruses, see antivirus program
  • lexical scanner - for decomposition of an input into logical units, see Tokenizer


Non-contact scanning and imaging devices in everyday medical parlance, cf:

  • Computed tomography (CT)
  • Positron emission tomography (PET)
  • Single photon emission computed tomography (SPECT)
  • Magnetic resonance imaging (MRI)
  • Optical Coherence Tomography (OCT)


Further:

  • in lighting design a spotlight for the projection of images and optical effects, see scanner (lighting technology)
  • Equipment in photolithography similar to a stepper (semiconductor technology), see possibly scanner (semiconductor technology)
  • Gamma camera - now no longer used device for imaging diagnostics in nuclear medicine


Culture:

  • German metal band, see Scanner (band)
  • the stage name of the British electronic musician Robin Rimbaud
  • a dystopian novel by Robert M. Sonntag, see The Scanners

Scanning (from English [to] scan for '[the] scanning' or 'capturing') or scanning - as a process - stands in particular for:

  • in general, the use of a device for data acquisition
  • the non-contact scanning of objects with recording techniques, see sensor technology (technology)
  • the recording of written material in document management
  • in aviation parlance, the scanning of the field of view for other flying objects during flight
  • in space research, the systematic observation or scanning of selected celestial regions by means of observatories or astrometry satellites
  • a speed-reading technique


See also:


AlegsaOnline.com - 2020 / 2023 - License CC3