The Modified Transient Plane Source (MTPS) method is used to measure the thermal conductivity or thermal effusivity of solids. Using the interactive demonstration below, you can learn how to calibrate and test with the MTPS. Each reference material has been measured by an absolute method and values recorded. This range of four calibration materials covers a range of 0.2 W/mK to 4 W/mK.
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Calibration Materials 
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MTPS Sensor  |
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MTPS Calibration Graphs |
Reference:
Paper: M. Emanuel. 2006. Effusivity Sensor Package (ESP) System for Process Monitoring and Control. THERMAL CONDUCTIVITY 28: 256
Available at: https://memanuel.files.wordpress.com/2010/08/mathis_effusivity_sensor_technology3.pdf
ASTM:ASTM D7984-16, Standard Test Method for Measurement of Thermal Effusivity of Fabrics Using a Modified Transient Plane Source (MTPS) Instrument, ASTM International, West Conshohocken, PA, 2016, www.astm.org
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For more information visit Methods Requiring Calibration or Absolute Methods.
