Vatell SB2000

Schmidt-Boelter heat flux sensor

Linkedin Twitter Google+

Key Features
  • Accurate Convective Heat Flux
  • Measurement of low Heat Flux levels < 5W/cm².
  • Minimum sensitivity of 150 µV/W/cm²
Buy Online

We currently don't have any SB2000 parts to order online. Please call +44(0)118 9769000 for further assistance

Place your order before 2pm to select next day delivery. In a hurry? pre 10:30am delivery also available.


The SB2000 Schmidt-Boelter heat flux sensor is particularly good at measuring low heat flux levels and convective heat flux.

The Schmidt-Boelter range of heat flux sensors complements the Thermogage heat flux sensors. Schmidt-Boelter heat flux sensors should be chosen over the Thermogage heat flux sensors in a number of circumstances:

  • Where convective heat flux accuracy is important. The Schmidt-Boelter heat flux sensors measure the temperature difference through the body of the sensor (across the wafer) instead of across the face of the sensor as is the case of the Thermogage heat flux sensors.
  • Where there are low heat flux levels. The minimum range of a Thermogage heat flux sensor is 5W/cm². Schmidt-Boelter heat flux sensors are able to measure much smaller levels of heat flux than this.

In order to preserve measurement accuracy, the measurement surface should be kept clean. The sensors are suitable for use in an outdoor environment and are shower proof. It is recommended that the sensor be covered and protected from the weather when not in use. However, note that rainwater on the measurement surface will spoil any measurements taken.

Ordering Information

The only thing about this sensor that needs to be specified is the mechanical package. There are links to some of the more popular packages on this web page, but other designs are possible. Please tell us your requirements and we will do our best to accommodate your mechanical requirements.


Housing Sizes
Minimum standard diameter of 0.25"
Minimum standard length of 0.5"

Transducer Calibration Accuracy: ±3% of full scale

Repeatability: 2%

Minimum Sensitivity: 150 µV/W/cm²

Time Response: 500mS

Nominal Resistance: 100 Ohms

Maximum temperature: 200°C

Maximum continuous heat flux: 10 W/cm² (with a good heat sink)

Maximum transient heat flux: 20 W/cm²

Please note that there is a temperature dependency with Schmidt-Boelter heat flux sensors. The sensitivity increases roughly 0.1% per °C. For this reason, it is recommended that the SB2000 be fitted to a large heat sink, or that the water cooled SB1000 be used.

Related Products