Telecom ABC - I

ISM - Industrial Scientific and Medical devices


Industrial Scientific and Medical devices, or simply ISM, are devices whereby the radio energy is used for a purpose other than communications. Radio energy is used for industrial, scientific, medical, domestic or similar purposes, excluding applications in the field of telecommunications. Undoubtedly, the best known example is the microwave oven, which operates at 2,45 GHz.

ISM applications and equipment include

  • Induction heating equipment (below 1 MHz)
    • domestic induction cookers
    • metal melting, welding, soldering and brazing
  • Heating (1-100 MHz)
    • drying, moulding, welding and thawing,/li>
  • Medical equipment
    • short-wave and microwave diathermy and hyperthermia equipment
    • electrical surgical units (ESU)
    • magnetic resonance imaging (MRI)
  • Microwave equipment (above 900 MHz)
    • domestic and commercial microwave ovens
    • food tempering, thawing and cooking
    • UV paint and coating curing
    • rubber vulcanization
    • pharmaceutical processing
  • Laboratory and scientific equipment
    • signal generators
    • measuring receivers
    • frequency counters
    • flow meters
    • spectrum analysers
    • weighing machines
    • chemical analysis machines
    • electronic microscopes


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