LFA 467 HT HyperFlash® – Light Flash Apparatus

Accurate thermal diffusivity and thermal conductivity measurements between RT and 1250°C with Xenon Flash

The LFA 467 HT HyperFlash® is based on the already-established LFA 467 HyperFlash® technology and requires no laser class due to the innovative light source system. The long lifetime of the xenon lamp provides cost-effective measurements until 1250°C without costly consumables.

ZoomOptics – For precise measurement results by an optimized field of view 

The patented ZoomOptics system (patent no.: DE 10 2012 106 955 B4  2014.04.03) optimizes the field of view of the detector, thus eliminating any influences caused by aperture stops. The result is a significant increase in the precision of the measurement results.

Ultra-fast sampling rate (up to 2 MHz) and extremely short pulse widths (up to 20 µs) enabling measurement of thin and highly conducting materials

The data acquisition rate of the LFA 467 HyperFlash® series was increased to 2 MHz. This acquisition rate applies to both the IR detector and the pulse mapping channels. Thereby, highly conductive and/or thin materials requiring very short test times can be reliably tested.

When testing metal (0.3 mm) and polymer foils (30 μm), an optimum sampling rate and pulse width can be selected. The patented pulse mapping system accounts for the finite pulse width effect and heat losses (patent no.: US7038209 B2; US20040079886; DE1024241).

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Temperature range RT to >1250°C
Heating rate (max.) 50 K/min
IR detectors

- InSb: RT > 1250°C

- Detector refill device

Data acquisition rate up to 2 MHz (for both temperature detection and pulse mapping)
Thermal Diffusivity 0.01 mm2/s to 2000 mm2/s
Thermal Conductivity < 0.1 W/(m*K) to 4000 W/(m*K)
Patented pulse mapping technique for finite pulse correction and improved cp determination
Atmospheres Inert, oxidizing, static and dynamic
Vacuum 10-4 mbar
Sample holders for round and square samples
Gas control MFC and AutoVac

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