BLK – GLD sticker series
Black and gold stickers for measuring convective and radiative heat flux separately
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- GLD gold stickers
- BLK black stickers
- separates types of heat flux
Black and gold stickers
Want to study energy transport/heat flux in detail? Hukx helps taking your measurement to the next level. Simply provide your heat flux sensors with radiation-absorbing black and radiation-reflecting gold stickers. You can then measure convective + radiative flux with one, and only convective flux with the other. Subtract the two measurements and you have radiative flux. BLK and GLD stickers are available for sensors of the FHF05 series and for the HFP01. They are designed to be applied by the user to the sensor; see the user manual and installation video for instructions.
- GLD gold stickers
- BLK black stickers
- separates types of heat flux
Specifications
| BLK | : |
| measurand | convective + radiative heat flux |
| spectral range (UV-VIS-NIR-FIR) | 250 to > 10000 x 10⁻⁹ m |
| absorption over range | > 95 % |
| rated temperature range - continuous use | -40 to +150 °C* |
| rated temperature range - short intervals | -40 to +260 °C* |
| GLD | : |
| measurand | convective heat flux |
All specifications
| BLK | : |
| measurand | convective + radiative heat flux |
| spectral range (UV-VIS-NIR-FIR) | 250 to > 10000 x 10⁻⁹ m |
| absorption over range | > 95 % |
| rated temperature range - continuous use | -40 to +150 °C* |
| rated temperature range - short intervals | -40 to +260 °C* |
| GLD | : |
| measurand | convective heat flux |
| spectral range (NIR-FIR) | to > 1000 x 10⁻⁹ m |
| reflection over range | > 95 % |
| spectral range (VIS) | 400 to 700 x 10⁻⁹ m |
| reflection over range | > 80 % |
| solar absorption | < 20 % |
| rated temperature range - continuous use | -185 to +150 °C* |
| rated temperature range - short intervals | -185 to +260 °C* |
| working with BLK – GLD sticker series | |
| – effect on sensor sensitivity | negligible |
| – application on sensor | by user or at factory, see user manual and instruction video |
| versions and order codes | |
| – GLD for use with FHF05(SC) | GLD-10X10, GLD-15X30, GLD-50X50 (SC), GLD-15X85, GLD-85X85 (SC) |
| – BLK for use with FHF05(SC): | BLK-10X10, BLK-15X30, BLK-50X50 (SC), BLK-15X85, BLK-85X85 (SC) |
| – GLD for use with HFP01 | GLD-80 |
| – BLK for use with HFP01 | BLK-80 |
| * See also the rated temperature ranges of the heat flux sensors in the sensor user manuals | |
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Measuring radiative and convective heat flux
Heat flux measurement is a powerful tool to gain insights into processes involving the transport of thermal energy. Heat flux consists of conductive, convective and radiative flux. When measuring heat flux, users may wish to measure only radiative or only convective heat flux. This is now possible with the BLK – GLD sticker series, designed to be used with a wide range of our market-leading heat flux sensors. The BLK black absorbing stickers will absorb all radiation and are sensitive to both radiative and convective heat flux, while the GLD gold reflective stickers reflect all radiation and are sensitive to convective heat flux only. Combining BLK and GLD, applied to two separate heat flux sensors, will allow for measuring radiative heat flux:
Φradiation + convection = ΦBLK
Φconvection = ΦGLD
Φradiation = ΦBLK - ΦGLD
Unique features and benefits
- makes it possible to perform convective and radiative heat flux measurements
- available as accessory for the FHF05(SC) series and HFP01 heat flux sensors
- designed to be applied by the user
Easy to use
BLK – GLD stickers are designed to be applied by the user, but can optionally also be pre-applied at the factory. Applying a sticker to a heat flux sensor does not change the sensitivity of the sensor, so no additional calibration is required. Using the reliable measurement technology behind our heat flux sensors, separating convective and radiative heat flux has never been easier.
Frequently Asked Questions
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Where can I find complete heat flux measuring systems?
Hukx, market leader in heat flux measurement, offers both sensors and systems.
These measuring systems typically include a Measurement and Control Unit and one or more sensors for measuring heat flux as well as other measurands, such as temperature and humidity. Examples are the TCOMSYS01 Hot Cube thermal comfort measuring system, including a TCOM01 sensor, and the TRSYS01 measuring system, incorporating two HFP01 heat flux sensors and two pairs of matched thermocouples.
'Sensors only' can be found here. Complete measuring systems are displayed here, on a separate page.
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