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4.3
Heat Flux Interface
The SP-016 provides heat flux measurements in W/m
2
. Heat Flux sensors, such as the OMEGA HFS-05, consist of a
thermopile device and a temperature compensation (TempCo) measuring device, typically a T type thermocouple.
For OMEGA HFS products, the heat flux is calculated as:
q” = V
q”
/ S
@ToC
Where q” is the heat flux, V
q”
is the measured voltage (in mV) and S
@ToC
is the temperature compensated sensor sensitivity,
calculated as:
S
@ToC
= (TempCo
Gain
* T
oC
+ TempCo
Offset
) * S
Calib
T
oC
is the measured temperature from the T type thermocouple. From the HFS-05 datasheet:
HFS-01 Value
Description
TempCo
Gain
0.000334
Temperature Compensation Gain
TempCo
Offset
0.917
Temperature Compensation Offset
S
Calib
0.90
Calibrated Sensitivity (Provided on Calibration Sheet)
To configure these features, follow these steps:
Step 1:
Click the
Inputs
configuration tab on SYNC and choose
HEATFLUX
from the
Type
dropdown.
Note:
Refer to your heat flux sensor data sheet for Sensitivity, Gain, and Offset values. Units for Sensitivity are
measured in mV/(W/m
2
).
