Overview
M8 Heat Flux Sensor
The M8 heat flux sensor represents Hudyne’s perfect choice for the most demanding measurement tasks. With our operational time constant being below 1us even the fastest process details can be captured. The active sensor surface (black front side) can be customized depending on the desired sensitivity.
Its stainless steel housing provides a pressure-tight, durable construction, while the optional pressurized air-cooling system ensures enhanced thermal stability under demanding conditions. A cable strain-relief is fully integrated into the sensor design. Specifically designed for extreme environments, the M8 excels under intense heat loads. Dimensionally compatible and easily interchangeable with most commercial pressure sensor formats, the M8 integrates seamlessly into existing setups.
Each module is factory-calibrated, guaranteeing consistent and reliable performance right from the start. An optimized amplification system can be found below under our Amplifier section.
M8 Heat Flux Sensor:
- Sensor thread with M8x1 threading. Sensor length 15-100 mm depending on configuration (100mm = legacy version)
- Customizable cooling solutions to match the requirements of your measurement campaign
- Customizable signal connection and amplifier system
- Short pulse temperatures up to 4000 K
| Mechanical: |
M8×1 threading Sensor length 15–100 mm (100 mm = legacy) Pressure resistant up to 50 bar |
|---|---|
| Thermal limits: |
Short pulses up to 4000 K Permanent operation up to 180 °C With cooling > 250 °C |
| Measurement range: | 10 W/m² up to 40 MW/m² |
| Accuracy: |
Standard 15 % absolute Relative 5 % |
M8 Heat Flux Sensor- System Parts
Amplifier
View & Download
Mounting Instructions
Publications
Formula Sport Engine Measurements
Find the corresponding Research Article here: Journal of Engines
Find the corresponding Research Article here: Research
Example Data
Explore how the M5 redefines compact performance by reviewing our example data and seeing the results firsthand.
Contact
Use our contact form to get directly in contact with us: Get in Contact
Technical drawings and instruction manuals are available upon request. For more details contact info@hudyne.com or fill out our contact form.
Calibration
Hudyne offers both convection- and radiation-based calibration methods to ensure stable, repeatable sensor performance across a wide thermal range. Please visit our calibration page for more insights: Calibration
M8 Heat Flux Sensor – FAQ
How do our Heat Flux Measurement solutions get shipped?
Each sensor comes with a rugged casing and an individual calibration curve. Our specialty signal amplifiers can be shipped together with your sensors in one package on request. This also allows us to deliver a fully calibrated measurement chain — professionally aligned end-to-end in our lab before shipment.
What delivery times can be expected?
For our standard heat flux solutions, an average lead time of 3 weeks can be expected. Please note that custom configurations may be subject to extended lead times.
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 M8 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
