Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

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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

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Related Topics

Measurements and Instrumentation

Measurement and instrumentation strategies.

Related Documents


Devices - sensors - communicating physical properties to observers.

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