Functional Elements of Measurement Systems Quiz

Classification of Functional Elements of Measurement System

• Transducer/Sensor: Devices that convert physical input variables into electrical output variables.
• Physical Input Variables: Common examples include temperature, pressure, and liquid flow.
• Electrical Output Variables: Can include changes in voltage, resistance (R), inductance (L), and capacitance (C).

Types of Transducers/Sensors

• Displacement Sensors:

  • Monitor linear displacement, such as the thickness of materials like metal sheets.
  • Also measure angular displacement.

• Contact Type Sensors: Engage directly with the measured medium.

• Non-Contact Type Sensors: Measure without direct contact with the medium.

Specific Types of Sensors

• Speed Sensors:

  • Optical Sensors: Use light detection to measure speed.
  • Tachogenerator: Measures rotational speed.

• Fluid Sensors:

  • Fluid Pressure Sensor: Measures the pressure of fluids.
  • Fluid Flow Sensor: Monitors the flow rate of fluids, including specific types like rotameters and diaphragm sensors.

• Liquid Level Sensors:

  • Assess the level of liquids in containers.
  • Examples include potentiometer flow gauges and bellow sensors.

• Temperature Sensors:

  • Devices to measure temperature variations.
  • Include different types such as:
    • Glass Thermometer
    • RTD (Resistance Temperature Detector)
    • Thermistor
    • Thermocouple

Key Examples of Sensors

• Potentiometer: Measures changes in resistance.
• Strain Gauge: Detects strain through deformation.
• LVDT (Linear Variable Differential Transformer): Utilizes inductance for displacement measurement.
• Encoder: Converts position into an electrical signal for measurement.

Summary of Displacement Sensors

• Can measure both linear and angular displacements.
• Important in applications requiring precise location and movement tracking.

Test your knowledge on the classification of functional elements of measurement systems with this quiz. Learn about transducers and sensors, physical input variables, electrical output variables, and more.