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Measurements are required to monitor, analyze and control processes.

Measurements are required for

  • monitoring
  • analyzing
  • controlling

processes and operations.


  • measured and indicated quantities not included in control or data acquisition systems  

Examples - thermometers, anemometers, electricity meters, water meters, barometers ...


  • measured quantities included in data acquisition systems

Examples - values used in statistical models like historical weather, values used to build empirical models like weather forecasts ...


  • measured values used in control systems

Examples - thermostat to switch on/off an electric heater, pressure-sensor used in an oil-refinery to control compressors

Related Topics

Related Documents

  • Instruments

    Devices - sensors - communicating physical properties to observers.


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