Transient Plane Source (TPS-3)

A transient plane source (TPS-3) for testing the thermal conductivity, thermal diffusivity and specific heat of solids, pastes and powders for customers with a limited budget.

Best For Solids, Powders and Pastes

Transient Plane Source

Test Method

10 °C to 80 °C

Temperature
Range

TPS-3 Transient Plane Source

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    Features

    We have designed the transient plane source (TPS-3) for testing the thermal conductivity, thermal diffusivity and specific heat of solids, pastes and powders for customers with a limited budget. The TPS-3 includes the standard TPS Sensor and software for use in combination with the Keithley 2400/2401 Source Meter. The TPS-3 can be offered as a package with a Keilthley meter or for use on your own Keithley meter.

    The basic theory is that the sensor, which is sandwhiched between two pieces of the same sample, is electrically connected to a power supply and sensing circuit. A current passes through the sensor and creates an increase in temperature, which is recorded over time. The heat generated is then diffused into the sample at a rate dependent on the thermal transport characteristics of the material.

    TPS-3 Features

    • Thermal conductivity, thermal diffusivity, and volumetric specific heat
    • Portable, Economical, and Accurate
    • Solids, Pastes, and Powders
    • No calibration or contact agent
    Specification
    Materials Solid, Pastes, and Powders
    Measurement Capabilities Bulk Properties
    Thermal Conductivity 0.03 to 70 W/m•K
    Additional Properties Thermal Diffusivity and Specific Heat
    Measurement Time 10 to 160 seconds
    Temperature Range 10 to 80 °C
    Reproducibility Typically better than 2%
    Accuracy Typically better than 5%
    Sensor Diameter 20 mm
    Smallest Sample Size 40 mm diameter x 5 mm
    Largest Sample Size Unlimited

    Testing Sensors and Applications
    Standard TPS Sensor
    Standard TPS Sensor

    Standard 20 mm diameter TPS Double Spiral Sensor (Model 46171).

    Thermal Conductivity of Insulation
    Thermal Conductivity of Insulation

    Room temperature measurement of NIST EPS 1453 was 0.032 W/m·K, RSD 0.65%, compared to expected value of 0.0332 W/m·K. Accuracy of 3.6%.

    Thermal Conductivity of Glass
    Thermal Conductivity of Glass

    Room temperature measurement of Pyrex Glass was 1.17 W/m·K, RSD 1.5%, compared to expected value of 1.15 W/m·K. Accuracy of 1.7%.

    Thermal Conductivity of Stainless Steel
    Thermal Conductivity of Stainless Steel 316

    Room temperature measurement of Stainless Steel 316 was 13.81 W/m·K, RSD 1.2%.

    Transient Plane Source (TPS) Models Comparison

    Models
    MP-1 with TPS
    Thermal Conductivity Range
    0.005 to 1800 W/m•K
    Sample Size (mm)
    5 x 5 to unlimited
    Sample Thickness (mm)
    0.01 to unlimited
    Test Time (seconds)
    0.25, 0.5, 1, 2, 3, 4, 5, 10, 20, 40, 80, 160, 320, 640, 1280
    Temperature Range
    Room Temperature
    0 to 300 °C
    -160 | -50 | -20 | 0 to 300 °C
    Additional Properties
    Thermal Diffusivity, Specific Heat, Thermal Effusivity, Contact Resistance
    Two-Sided (Symmetric) Sensor
    Yes
    Single-Sided (Asymmetric) Sensor
    Yes
    TPS Sensors (Radius, mm)
    0.5, 0.8, 2, 3.2, 6.4, 10, 15, 30
    Contact Resistance (units)
    Measured & Manual
    Bulk – 3D Thermal Conductivity
    Yes
    Anisotropic Thermal Conductivity
    Yes
    Slab Thermal Conductivity
    Yes
    Direct Specific Heat
    Yes
    1-D – Thermal Conductivity
    Yes
    Thin-Film / Coatings
    Yes
    Integrated Switch
    (x 4 channels)
    Yes
    Temperature Platforms
    Yes
    Ovens - Automated
    Yes
    Optional THW Method for Liquids
    Yes
    ISO 22007-2 Compliant
    Yes

    Models
    TPS-2
    Thermal Conductivity Range
    0.01 to 100 | 0.01 to 500 W/m•K
    Sample Size (mm)
    10 x 10 to unlimited
    Sample Thickness (mm)
    0.1 to unlimited
    Test Time (seconds)
    2, 3, 4, 5, 10, 20, 40, 80, 160
    Temperature Range
    Room Temperature
    RT to 300 °C
    -75 to 200 °C
    Additional Properties
    Thermal Diffusivity, Specific Heat, Thermal Effusivity
    Two-Sided (Symmetric) Sensor
    Yes
    Single-Sided (Asymmetric) Sensor
    Yes
    TPS Sensors (Radius, mm)
    2, 3.2, 6.4, 10
    Contact Resistance (units)
    Manual
    Bulk – 3D Thermal Conductivity
    Yes
    Anisotropic Thermal Conductivity
    Yes
    Slab Thermal Conductivity
    Yes
    Direct Specific Heat
    Yes
    1-D – Thermal Conductivity
    No
    Thin-Film / Coatings
    No
    Integrated Switch
    (x 4 channels)
    No
    Temperature Platforms
    No
    Ovens - Automated
    Yes
    Optional THW Method for Liquids
    No
    ISO 22007-2 Compliant
    Yes

    Models
    TPS-3
    Thermal Conductivity Range
    0.03 to 80 W/m•K
    Sample Size (mm)
    40 x 40 to unlimited
    Sample Thickness (mm)
    5 to unlimited
    Test Time (seconds)
    10, 20, 40, 80, 160
    Temperature Range
    Room Temperature
    10 to 80 °C
    Additional Properties
    Thermal Diffusivity, Specific Heat, Thermal Effusivity
    Two-Sided (Symmetric) Sensor
    Yes
    Single-Sided (Asymmetric) Sensor
    No
    TPS Sensors (Radius, mm)
    10
    Contact Resistance (units)
    Manual
    Bulk – 3D Thermal Conductivity
    Yes
    Anisotropic Thermal Conductivity
    No
    Slab Thermal Conductivity
    No
    Direct Specific Heat
    No
    1-D – Thermal Conductivity
    No
    Thin-Film / Coatings
    No
    Integrated Switch
    (x 4 channels)
    No
    Temperature Platforms
    No
    Ovens - Automated
    No
    Optional THW Method for Liquids
    No
    ISO 22007-2 Compliant
    No

    Models
    MP-2 with TPS-4
    Thermal Conductivity Range
    0.03 to 5 W/m•K
    Sample Size (mm)
    35 x 35 to unlimited
    Sample Thickness (mm)
    5 to unlimited
    Test Time (seconds)
    20 and 40
    Temperature Range
    Room Temperature
    10 to 40 °C
    Additional Properties
    No
    Two-Sided (Symmetric) Sensor
    No
    Single-Sided (Asymmetric) Sensor
    Yes
    TPS Sensors (Radius, mm)
    6.4
    Contact Resistance (units)
    Automatic
    Bulk – 3D Thermal Conductivity
    Yes
    Anisotropic Thermal Conductivity
    No
    Slab Thermal Conductivity
    No
    Direct Specific Heat
    No
    1-D – Thermal Conductivity
    No
    Thin-Film / Coatings
    No
    Integrated Switch
    (x 4 channels)
    No
    Temperature Platforms
    No
    Ovens - Automated
    No
    Optional THW Method for Liquids
    Yes
    ISO 22007-2 Compliant
    No

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        Featured Webinar

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