Teflon-insulated

Our current range of Teflon-insulated Hot Disk® sensors for Isotropic, Anisotropic, Slab, One-dimensional and Structural Probe measurements, with operating temperature from -196 °C up to 250 °C, are listed in the following table, followed by photos and detailed dimensions further down:

Sensor model:	Radius (mm):
7577 *	2.0
7577 Q /*	2.0
5465	3.2
5465 Q **	3.2
5501	6.4
5501 Q **	6.4

* Not for anisotropic measurements.
** For special applications and easier suspension in liquids or melts.

The Teflon-insulated Hot Disk® sensors can be acquired with or without attached cables. Standard cables can be used up to 50 °C, while high-temperature silicone cables are available for temperatures up to 180 °C. Sensors without cable can be mounted in dedicated sensor holders for use up to 250 °C.

Teflon-insulated Hot Disk® Sensors – Standard

Illustration of the Standard Sensors dimensions

Model Dimensions

∅ = Diameter double spiral
A = Effective sensor length

Model 7577

∅ = 4.0 mm
A = 49 mm

Model 5465

∅ = 6.4 mm
A = 49 mm

Model 5501

∅ = 12.8 mm
A = 49 mm

Teflon-insulated Hot Disk® Sensors – Extended cladding

Illustration of the Extended Cladding Sensors dimensions

Model Dimensions

∅ = Diameter double spiral
A = Effective sensor length

Placeholder for Product Image Coming Soon

Model 7577Q

∅ = 4.0 mm
A = 49 mm

Model 5465Q

∅ = 6.4 mm
A = 49 mm

Model 5501Q

∅ = 12.8 mm
A = 49 mm

Other Sensors

Kapton-insulated

Hot Disk® Sensor

Our Kapton-insulated sensors are the most versatile in the Hot Disk sensor portfolio, employed at temperatures from -238 °C (35 K) to 400 °C. They are mechanically highly flexible, and frequently attain a lifetime of several years when employed with care. The Kapton-insulated Hot Disk® sensors are available in seventeen models of different radii to date, catering to a wide range of sample sizes and topical applications.

Mica-insulated

Hot Disk® Sensor

Our Mica-insulated Hot Disk® sensors are mechanically inflexible, and designed for measurements at elevated temperatures, typically in the 300 °C to 1000 °C range. Coming in eight models of different radii to date, they are commonly more perishable at higher temperatures, while easily replaced and available in bulk.

Kapton-insulated

Hot Strip Sensor

While our Hot Disk® sensors can accommodate most measurement scenarios, our Hot Strip sensors can help tackle odd-shaped and/or limited-sized samples, e.g. rectangular slabs and rods with square cross-sections. Regarding anisotropic samples, Hot Strip sensors can be used to analyze the 3D Thermal Conductivity tensor of biaxial materials, whereas the Hot Disk sensors are limited to analyzing in-plane and through-plane Thermal Conductivity of uniaxial materials.