Transient Plane Source (TPS-2)

The TPS-2 transient plane source is designed to test the absolute thermal conductivity, thermal diffusivity, specific heat of solids, pastes, viscous liquids and powders.

Best For Solids, Pastes, and Powders

Transient Plane Source

Test Method

-75 °C to 300 °C

Temperature
Range

The Transient Plane Source (TPS) for solids, pastes and powders is widely used for accurate measurement of absolute thermal conductivity, thermal diffusivity, specific heat, and thermal effusivity. Conforms to ISO 22007-2: 2015. The TPS-2 has been configured to offer a basic range of 0.01 to 100 W/m•K, with optional max power range of 0.01 to 500 W/m•K.

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    Features

    The sensor 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 Sensor
    Transient Plane Source (TPS) Sensor

    The TPS sensor designed for solids, pastes, and powders is comprised of a double-spiral of nickel encapsulated between layers of insulation. Standard operation of this sensor (Two-Sided) is sandwiched between two pieces of the same sample, with expanded use to Single-Sided sensor, which only requires one piece of sample (Single-Sided). The TPS calculation model measures the thermal conductivity, thermal diffusivity, volumetric specific heat and thermal effusivity of the sample.

    Raw Data

    Raw Data

    Calculation Data

    caculation data

    Residual Data

    residual data

    • International Standard: ISO 22007-2
    • Your choice of Two-Sided TPS Sensor/Set-up or TPS Single-Sided Sensor
    • Absolute thermal conductivity, thermal diffusivity, specific heat and thermal effusivity
    • Basic Range of 0.01 to 100 W/m•K
    • Expandable to Max Power Range of 0.01 to 500 W/m•K
    • Testing Modules for Bulk, Anisotropic, Slab and Specific Heat
    • Primary measurement of solids, pastes, viscous liquids and powders
    • Transient Plane Source (TPS)
    • Bulk and Directional Properties
    • No calibration or contact agent
    • The TPS method is a proven technique represented by thousands of publications
    Specification
    Methods Transient Plane Source (TPS)
    Materials Solids, Pastes, Viscous Liquids and Powders
    Testing Modules 3D: Bulk, Anisotropic, Slab | General: Specific Heat
    TPS Sensors (Radius mm) 2, 3.2, 6.4, 10
    Thermal Conductivity Basic Range: 0.01 to 100 W/m•K
    Max Power Range: 0.01 to 500 W/m•K
    Sample Size* 10 x 10 mm to unlimited
    Sample Thickness* 0.1 mm to unlimited
    Additional Properties Thermal Diffusivity | Specific Heat |Thermal Effusivity
    Sensor Contact Resistance (m²K/W) Manually removed
    Temperature Range -75 to 300 °C
    Test Time 2 to 160 seconds
    Data-Points Up to 600 points / second
    Thermal Conductivity Accuracy 5%
    Repeatability 2%
    Sample Configuration Symmetric (Two-Sided) | Asymmetric (Single-Sided)
    Standard ISO 22007-2:2015

    *Based on testing module used.

    TPS Sensors
    TPS Symmetric (Two-Sided) Sensor
    TPS Symmetric (Two-Sided) Sensor

    Sensor following classic configuration for testing of solids, pastes and powders, with one sample half on top and bottom, sandwiching the sensor. This forms a semi-infinite medium.

    Available: 2, 3.2, 6.4, 10 mm radius

    Room Temperature Holder

    TPS Symmetric (Single-Sided) Sensor
    TPS Asymmetric (Single-Sided) Sensor

    The TPS single-sided sensor offers excellent accuracy and repeatability without the requirement of two pieces of sample. This is a very convenient sensor for testing large, hard-to-handle samples.

    Available: 3.2, 6.4, 10 mm radius

    TPS Single-Sided Sensor

    TPS Modules

    Thermtest offers a growing selection of testing modules which are grouped based on their testing theory.

    3-Dimensional

    Standard 3-Dimensional Module
    Standard copy

    Bulk thermal conductivity, thermal diffusivity, specific heat and thermal effusivity.

    Basic Thermal Conductivity: 0.01 to 100 W/m•K
    Optional Max Power Thermal Conductivity: 0.01 to 500 W/m•K

    Anisotropic 3 Dimensional Module
    Anisotropic copy

    In-plane and out-of-plane thermal conductivity and thermal diffusivity.

    Basic Thermal Conductivity: 0.01 to 100 W/m•K in both axial and radial direction to the sensor plane
    Optional Max Power Thermal Conductivity: 0.01 to 500 W/m•K in both axial and radial direction to the sensor plane

    Slab 3 Dimensional Module
    Slab copy

    Isolated in-plane, for thermal conductivity, thermal diffusivity and volumetric specific heat for thin, conductive sheets.

    Basic Thermal Conductivity: 0.1 to 100 W/m•K
    Optional Max Power Thermal Conductivity: 0.1 to 500 W/m•K
    Thickness Range: 0.1 to 5 mm

    General

    General 1-Dimensional Module
    Specific Heat copy

    High accuracy direct measurement of specific heat. Various cell dimensions available, for improved accuracy of heterogenous materials.

    Standard Test Cell: 20 mm diameter x 5 mm high

    Transient Plane Source (TPS) Models Comparison

    Models
    Thermal Conductivity
    Additional Properties
    Sample Size (mm)
    Sample Thickness (mm)
    Test Time (seconds)
    Temperature Range
    Two-Sided (Symmetric) Sensor
    Single-Sided (Asymmetric) Sensor
    TPS Sensors (Radius, mm)
    Contact Resistance (units)
    Bulk – 3D Thermal Conductivity
    Anisotropic Thermal Conductivity
    Slab Thermal Conductivity
    Direct Specific Heat
    1-D – Thermal Conductivity
    Thin-Film / Coatings
    Integrated Switch
    (x 4 channels)
    Temperature Platforms
    Ovens - Automated
    Optional THW Method for Liquids
    ISO 22007-2 Compliant
    MP-1 with TPS
    0.005 to 1800 W/m•K
    Thermal Diffusivity, Specific Heat, Thermal Effusivity, Contact Resistance
    5 x 5 to unlimited
    0.01 to unlimited
    0.25, 0.5, 1, 2, 3, 4, 5, 10, 20, 40, 80, 160, 320, 640, 1280
    Room Temperature
    0 to 300 °C
    -160 | -50 | -20 | 0 to 300 °C
    Yes
    Yes
    0.5, 0.8, 2, 3.2, 6.4, 10, 15, 30
    Measured & Manual
    Yes
    Yes
    Yes
    Yes
    Yes
    Yes
    Yes
    Yes
    Yes
    Yes
    Yes
    TPS-2
    0.01 to 100 | 0.01 to 500 W/m•K
    Thermal Diffusivity, Specific Heat, Thermal Effusivity
    10 x 10 to unlimited
    0.1 to unlimited
    2, 3, 4, 5, 10, 20, 40, 80, 160
    Room Temperature
    RT to 300 °C
    -75 to 200 °C
    Yes
    Yes
    2, 3.2, 6.4, 10
    Manual
    Yes
    Yes
    Yes
    Yes
    No
    No
    No
    No
    Yes
    No
    Yes
    TPS-3
    0.03 to 80 W/m•K
    Thermal Diffusivity, Specific Heat, Thermal Effusivity
    40 x 40 to unlimited
    5 to unlimited
    10, 20, 40, 80, 160
    Room Temperature
    10 to 80 °C
    Yes
    No
    10
    Manual
    Yes
    No
    No
    No
    No
    No
    No
    No
    No
    No
    No
    MP-2 with TPS-4
    0.03 to 5 W/m•K
    No
    35 x 35 to unlimited
    5 to unlimited
    20 and 40
    Room Temperature
    10 to 40 °C
    No
    Yes
    6.4
    Automatic
    Yes
    No
    No
    No
    No
    No
    No
    No
    No
    Yes
    No

    Transient Plane Source Accessories copy

    TPS Fan Furnace

    Fan Furnace

    • Affordable, versatile, expandable
    • Size up to: 100 x 100 x 50 mm
    • Up to 300°C
    • Larger sample holders available if needed
    Environmental Chamber

    Environmental Chamber

    • TPS-2 Software Controlled
    • Size up to: 100 x 100 x 50 mm
    • -75 to 200 °C
    • Larger sample holders available if needed
    Two-Sided TPS-Sensor

    TPS Two-Sided Sensors

    • Two-sided sensor for accurate lab testing        
    Single Sided Sensor

    TPS Single-Sided Sensor

    • Spring-loaded sensor for testing large samples or one when only one piece of sample is available.
    Extended TPS Sensors

    Extended TPS Sensors

    • Small sensors for samples as small as 10 mm
    • Large sensors for heterogeneous samples or large particle powders
    Compression Stand and Temperature

    Compression Stand + Temperature

    • For compressible materials
    • Force gauge: 10 to 100 N
    • Distance gauge
    • Room temperature or -40 to 200 °C

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