Transient Plane Source (TPS) Technique

The Transient Plane Source (TPS) technique is called the Hot Disk (HD). It is a strong strategy for estimating the thermal properties of a sample. A few different numerical calculations exist to oblige different sample types for TPS testing, during which the sensor is sandwiched between two parts of a similar specimen.

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Overview
Scope, Applications, and Benefits
Test Process
Specifications
Instrumentation
Results and Deliverables

Overview

Transient Plane Source (TPS) Technique is a widely used thermal analysis method for measuring thermal conductivity, thermal diffusivity, and specific heat capacity of materials. It employs a planar sensor that acts as both a heat source and temperature detector, enabling rapid and accurate characterization of thermal transport properties.

The TPS technique is applicable to a wide range of materials including solids, liquids, powders, and pastes. It is extensively used in research, manufacturing, and quality control to evaluate heat transfer performance, making it essential for industries such as electronics, construction, polymers, and energy systems.

Scope, Applications, and Benefits

Scope

The TPS technique evaluates thermal transport properties of materials using a transient heating method, providing precise measurement of conductivity, diffusivity, and heat capacity.

Applicable to solids, liquids, powders, and composites
Measures thermal conductivity and diffusivity
Suitable for isotropic and anisotropic materials
Supports R&D and quality control
Ensures compliance with international testing standards

Applications

Thermal conductivity testing of polymers and composites
Insulation material evaluation
Electronic component heat management analysis
Construction material testing
Research and development of advanced materials

Benefits

Provides rapid and accurate thermal measurements
Suitable for a wide range of material types
Non-destructive and versatile technique
Requires minimal sample preparation
Enables simultaneous measurement of multiple thermal properties

Test Process

Sample Preparation

The sample is prepared with flat surfaces to ensure proper contact with the TPS sensor.

Sensor Placement

The TPS sensor is placed between or on the sample to act as both heat source and detector.

Heating & Measurement

A controlled electrical pulse heats the sensor while temperature rise is recorded.

Data Analysis

The recorded temperature response is analyzed to calculate thermal properties.

Technical Specifications

Parameter	Details
Temperature range	Typically -100°C to 1000°C
Sensor type	Flat disk sensor
Measurement time	Few seconds to minutes
Sample type	Solids, liquids, powders, pastes
Accuracy	High precision with proper calibration
Output	Thermal property values and curves
Environment	Controlled laboratory conditions

Instrumentation Used for Testing

TPS thermal conductivity analyzer
TPS sensor (hot disk sensor)
Power supply and control unit
Temperature control system
Data acquisition software

Results and Deliverables

Thermal conductivity values
Thermal diffusivity data
Specific heat capacity results
Temperature response curves
Detailed analytical test report

Why Choose Infinita Lab for Transient Plane Source (TPS) technique?

With Infinita Lab (www.infinitalab.com), you are guaranteed a Nationwide Network of Accredited Laboratories spread across the USA, the best Consultants from around the world, Convenient Sample Pick-Up and Delivery, and Fast Turnaround Time.

Our team understands the stakes and subtleties of every test. Whether you’re validating a new Product, de-risking a prototype, or navigating complex compliance requirements, our specialists guide the process with rigor and clarity.

Looking for a trusted partner to achieve your research goals? Schedule a meeting with us, send us a request, or call us at (888) 878-3090 to learn more about our services and how we can support you. Request a Quote

Frequently Asked Questions

The TPS technique is a thermal analysis method used to measure thermal conductivity, diffusivity, and specific heat. It uses a sensor that acts as both a heat source and detector to evaluate heat transfer properties.

The TPS sensor generates heat through an electrical pulse and simultaneously measures temperature rise. The thermal response is analyzed to calculate material properties such as conductivity and diffusivity.

TPS provides accurate and repeatable results with minimal sample preparation. Its ability to measure multiple thermal properties simultaneously makes it a reliable and efficient technique for material analysis.

Factors include sample contact with the sensor, measurement time, temperature conditions, and calibration. Proper setup ensures accurate and reliable thermal property measurements.

Yes, TPS can measure both isotropic and anisotropic materials. Specialized configurations allow evaluation of directional thermal properties in advanced materials.