TPS-2 Transient Plane Source

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

TPS-2 Transient Plane Source
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.

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

Calculation Data

Residual Data

Specifications

Methods

Transient Plane Source (TPS)

Materials

Solids, Pastes, Viscous Liquids and Powders

Testing Modules

3D: Bulk, Anisotropic, Slab |

General: Specific Heat

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

rt 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 Asymmetric (Single-Sided) Sensor

TPS Modules

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

3-Dimensional

3-Dimensional Standard

Standard

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

3-Dimensional Anisotropic

Anisotropic

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

Slab

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

1-dimensional tps module

Specific Heat

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


MP-1 with TPS

TPS-2

TPS-3

TPS-4

Models

MP-1 with TPS

TPS-2

TPS-3

MP-2 with TPS-4

Thermal Conductivity Range

0.005 to 1800 W/m•K

0.01 to 100 | 0.01 to 500 W/m•K

0.03 to 80 W/m•K

0.03 to 5 W/m•K

Additional Properties

Thermal Diffusivity, Specific Heat, Thermal Effusivity, Contact Resistance

Thermal Diffusivity, Specific Heat, Thermal Effusivity

Thermal Diffusivity, Specific Heat, Thermal Effusivity

No

Sample Size (mm)

5 x 5 to unlimited

10 x 10 to unlimited

40 x 40 to unlimited

35 x 35 to unlimited

Sample Thickness (mm)

0.01 to unlimited

0.1 to unlimited

5 to unlimited

5 to unlimited

Test Time (seconds)

0.25, 0.5, 1, 2, 3, 4, 5, 10, 20, 40, 80, 160, 320, 640, 1280

2, 3, 4, 5, 10, 20, 40, 80, 160

10, 20, 40, 80, 160

20 and 40

Temperature Range

Room Temperature

0 to 300 °C

-160 | -50 | -20 | 0 to 300 °C

Room Temperature

RT to 300 °C

-75 to 200 °C

Room Temperature

10 to 80 °C

Room Temperature

10 to 40 °C

Two-Sided (Symmetric) Sensor

Yes

Yes

Yes

No

Single-Sided (Asymmetric) Sensor

Yes

Yes

No

Yes

TPS Sensors (Radius, mm)

0.5, 0.8, 2, 3.2, 6.4, 10, 15, 30

2, 3.2, 6.4, 10

10

6.4

Contact Resistance (units)

Measured & Manual

Manual

Manual

Automatic

Bulk – 3D Thermal Conductivity

Yes

Yes

Yes

Yes

Anisotropic Thermal Conductivity

Yes

Yes

No

No

Slab Thermal Conductivity

Yes

Yes

No

No

Direct Specific Heat

Yes

Yes

No

No

1-D – Thermal Conductivity

Yes

No

No

No

Thin-Film / Coatings

Yes

No

No

No

Integrated Switch

(x 4 channels)

Yes

No

No

No

Temperature Platforms

Yes

No

No

No

Ovens - Automated

Yes

Yes

No

No

Optional THW Method for Liquids

Yes

No

No

Yes

ISO 22007-2 Compliant

Yes

Yes

No

No

Transient Plane Source Accessories

fan furnace

Fan Furnace

Two-Sided Sensor

TPS Two-Sided Sensor

Two-sided sensor for accurate lab testing

Extended TPS-Sensors

Extended TPS Sensors

compression stand and temperature

Compression Stand + Temperature

Environmental Chamber

Environmental Chamber

Single-Sided Sensor

TPS Single-Sided Sensor

Spring-loaded sensor for testing large samples or one when only one piece of sample is available.
Testing Cells

Testing Cells

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