MP-V

Versatile measurement platform with accurate methods for thermal conductivity, thermal diffusivity, specific heat and thermal effusivity of solids, liquids, pastes and powders.

TPS Sensor
TPS

– ISO 22007-2, GB/T 32064
– Solids, pastes, powders

MTPS Sensor
MTPS (optional)

– Solids, pastes, powders

THW Sensor
THW

– ASTM D7896
– Liquids

TLS Sensor
TLS (optional)

– ASTM D5334-22a, D5930, IEEE-442
– Soil, polymers

Features

Transient methods share similar theory with differences that are specific to their primary design.

The sensors are electrically connected to a power supply and sensing circuit. A current passes through the sensors 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.

iTransient

Intelligent transient design for automation of testing and analysis. Raw data is always available to empower understanding of your results. Name your sample, iTransient does the rest.

itransient process

  • Transient Plane Source
  • Transient Hot Wire
  • Modified Transient Plane Source
  • Transient Line Source
Methods
TPS Sensor
Transient Plane Source Sensor (TPS, ISO 22007-2)

The TPS (Hot Disc) sensor is comprised of a double-spiral of nickel encapsulated between layers of insulation.

There are two options for operation of the sensor. The standard operation is two-sided, where the sensor is placed between two pieces of the same sample. The expanded use is a single-sided sensor, which only requires one piece of sample.

  • Thermal Conductivity, thermal diffusivity, specific heat and thermal effusivity
  • Solids, pastes and powders

Isotropic
Optional: anisotropic, slabs, thin-films and coatings

Transient Hot Wire Sensor (THW, ASTM D7896)
Transient Hot Wire Sensor (THW, ASTM D7896-19)

The THW sensor consists of a replaceable thin heating wire secured to specially designed sensor.

Measurements are done at short test times (one second) to limit convective effects on samples with a wide range of viscosities.

  • Thermal conductivity, thermal diffusivity, specific heat and thermal Effusivity
  • Liquids and PCMs
Modified Transient Plane Source Sensor (MTPS, Absolute)
Modified Transient Plane Source Sensor (MTPS, Absolute)

*Optional sensor

The absolute version of the MTPS sensor is comprised of a TPS (Hot Disc) sensor configured with known backing insulation, permanently housed in a rugged single-sided configuration.

This unique design combines intelligent design of sensor and measurement capabilities to generate bulk and directional properties for all materials.

  • Thermal conductivity, thermal diffusivity, specific heat and thermal effusivity
  • Solids, pastes and powders
  • Isotropic, anisotropic, slab and one-dimensional
Transient Line Source Sensor (TLS, ASTM D5334-22a, D5930, IEEE-442)
Transient Line Source Sensor (TLS, ASTM D5334-22a, D5930, IEEE-442)

*Optional sensor

The TLS sensor consists of a thin heating wire and temperature sensor sealed in a steel tube. The sensor is completely inserted into the sample to be tested.

  • Thermal conductivity and thermal resistivity
  • Soil and polymers
Specifications Comparison Chart
Methods TPS THW
Configuration Symmetric (two-sided) and Asymmetric (single-sided) Wire immersed
Materials Solids, pastes and powders Liquids & PCMs
Thermal conductivity (W/mK) 0.01 to 500 0.01 to 2
Thermal diffusivity (mm^2/sec) 0.01 to 300 up to 0.5
Specific heat (MJ/m^3K) Up to 5 up to 5
Thermal effusivity (W√s/(m²K)) 20 to 40000 N/A
Temperature (°C) Room Temp or -75 to 300°C Room Temp or -50 to 100°C
Accuracy (%) 5 2
Repeatability (%) 1 1
*Smallest dimension (mm) 10 x 10 to unlimited 20 ml
*Sample thickness (mm) 0.05 to unlimited N/A
Standard ISO 22007-2, GB/T 32064 ASTM D7896

*based on testing module used


Methods MTPS TLS
Configuration Asymmetric (single-sided) Needle inserted
Materials Solids, pastes and powders Soils and polymers
Thermal conductivity (W/mK) 0.03 to 500 0.1 to 8
Thermal diffusivity (mm^2/sec) 0.01 to 300 N/A
Specific heat (MJ/m^3K) Up to 5 N/A
Thermal effusivity (W√s/(m²K)) 20 to 40000 N/A
Temperature (°C) -50 to 200°C -40 to 100°C
Accuracy (%) 5 5
Repeatability (%) 2 2
Smallest dimension (mm) 25 x 25 to unlimited 50 to unlimited
Sample thickness (mm) 0.1 to unlimited 100 to unlimited
Standard N/A ASTM D5334, ASTM D5930, IEEE-442
Applications

MP-V Applications

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