The ALTP technology is integrated in many heat flux sensor research topics and industrial projects. In the following a short list of research aspects and publications:
Current ALTP Heat Flux Sensor Research topics:
Formula Sport Engine Measurements
Find the corresponding Research Article here: Engine 2022
- Heat flux densities up to 2000 W/cm2
- Engine revolutions up tp 8000 rpm
- Entire load range from idle load to full load and throttle
Comparison of different heat flux sensors within subsonic and radiative environments
Find the corresponding Research Article here: Sensor Comparison 2020; Sensor Comnparison 2022
- ALTP calibartion is within a 5% – error range in comparison to other commercially available heat flux sensors
- Radiation, Convection and Conduction can be accuratley measured
ALTP in Hypersonic measurements
Find selected Research Articles here: Hypersonic 2014; Hypersonic 2016; Hypersonic 2022
Shock Tube Measurements and high enthalpy flows
Find the corresponding Research Article here: Shock Tube 2022
- High Mach numbers up to 5
- Rise time about 1µs
- Heat flux densities up to 1000 W/cm2
Heat Flux Sensor FAQ
How do we calibrate our Heat Flux Measurement solutions?
For a standard application, we make use of our radiation calibration approach. It is also applicable for convection and conduction. You can also check out our research article about it: Research. We also offer several specialized calibrations. If you have further questions feel free to ask under info@hudyne.com.
Do I always need to use an amplifier for heat flux measurements?
There’s no universal answer to this. It strongly depends on the expected structural frequencies and the heat flux amplitudes involved.
As a general rule of thumb: the smaller the heat flux or the higher the frequency, the more advisable it is to use a dedicated measurement amplifier.
How long is our heat flux sensor calibration valid?
We recommend a re-calibration every 2 years when the sensor is used.
How do I calculate the actual heat flux value?
With the supplied sensitivity value of the sensor, the output voltage of our sensors can be directly converted into heat flux.
The relation is:
Heat flux Q̇ = Measured Voltage / Sensor Sensitivity
What is a heat flux sensor?
A heat flux sensor measures the thermal energy per unit area passing through a surface. Hudyne ALTP sensors convert heat flow directly into a measurable voltage signal without any conversation or numerical procedure involved.
What is the measurement range of a heat flux sensor?
Most scientific sensors cover ranges from a few W/m² up to several MW/m². Our high-performance ALTP-based sensors support extremely high heat flux levels up to 100MW/m² for e.g. aerospace or combustion studies.
How do I choose the right heat flux sensor for my experiment?
Key selection criteria are:
temperature limits, response time, measurement range, bandwidth, sensor size, and compatibility with your amplifier or DAQ system.
How do I choose the right heat flux sensor for my experiment?
Key selection criteria are:
– temperature limits
– response time
– measurement range
– bandwidth
– sensor size
– compatibility with your amplifier or DAQ system.
