MAE 3340 Instrumentation and Measurements

Section 6: Introduction to Heat Transfer , Thermometry, and Temperature Measurements

• Basic Definition for Temperature
• Temperature Scales
  • Kelvin ...
  • Centigrade/Celsius
  • Farenheit
  • Rankine
• International Reference Temperatures
• Types of Temperature Sensors
  • Thermometer
    • Fluid Based
    • Bi-Metallic
  • Temperature Transducers
    • Thermocouple
    • RTD (resistance temperature detector)
    • Thermistor
    • Integrated Circuit
  • Advantages/Disadvantages
• Thermocouples
  • Physical Measurement Principals
    • Seebeck Effect
    • Law of Intermediate Materials
  • Law of Intermediate Temperatures
  • Sensing the TC Voltage
  • TC With Similar Meter Leads
  • Cold-Junction Reference (Ice bath)
  • Types of Thermocouple Metal Pairs
  • TC With Dissimilar Meter Leads
  • Electronic TC Compensation Methods
  • Software Compensation Methods
    • Thermocouple Calibration Data
      • Temperature to Voltage Conversions
      • Voltage to temperature Conversions
      • NIST Type-J Thermocouple Calibration Data
      • Calculation Example
      • NIST Type-K Thermocouple Calibration Data
      • Generalized Calculation Procedure for Software Compensation
  • Hardware Compensation Methods
  • Required TC Measurement Sensitivity
  • Thermocouple VI's
• Electrical Resistance Thermometry
  • RTD Designs
  • RTD Materials
  • Lead Wire Compensation
    • Effect of Lead Wire Resistance
    • Two Wire Voltage Loop
    • Three Wire Voltage Loop
    • Four Wire Voltage Loop
    • Four Wire Current Loop
  • Thermistors
    • Principal of Operation
    • Steinhart-Hart Equation
    • Sensitivity
    • Types of Thermistors
• Semi-conductor/IC Sensors
  • Voltage Sensors
  • Current Sensors
• Sensor Comparison (Revisited)

Section 6.2: Heat Flux and Thermal Imagery Measurements

• Heat Flux Measurements
• Temperature Sensor Time Response
• Temperature vs Heat
• Heat Capacity
• Thin Monolithic Wall Example
• Types of Heat Flux Sensors
• First Order Response
• Higher-order Response
• Response Compensation Methods
• Radiative Temperature Measurements (Pyrometry)
• Photon Detectors
• Thermal Cameras
• Emmited Radiation
• Stefan-Boltzman constant
• Absorptivity and Emissivity
• Wein's Law

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