Advantage:
Conditions: permit to measure heat flow under extreme
conditions, like high temperature, projections or deposits.
Precision: the sensitivity is not temperature dependent,
so it is not affected by water temperature changes.
The error percentage is inferior at 2%, the response
time is < 0,2 second with a linear output of 100µV
for each 1 kW/ m2.
Flexibility: the sensor can be adapted to measure radiant
flow or heat flow. Furthermore, the captherm is available
in form of cylinders or rectangular bars or other custom
made form.
If the intensity range of the source change, there's
no need to change the sensitive element. |
Applications:
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Total and radiant flux measurement with source of
intense heat (laser, explosion…)
Process control (under extreme conditions)(glassmaking,
flames, oven)
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Specifications:
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Input range: 1 to 200 kW/ m2 may be extended up to
1000 kW/ m2
Output voltage: proportional to the heat flux intensity
Sensitivity: from 0,05 to 0,5 µV/(W/m2) (= 0,5
to 5mV/(W/cm2))
Linearity better than +/- 2% full range
Input thermal resistance: 0,006 °C/W/m2 or 0,034F/Btu/
hr ft2.
Response time:< 1 sec without sapphire window
Input range in wave length: 0,2 µm to 10 µm
without sapphire window
Input range in wave length: 85 % nominal from 0,15
µm to 5 µm with sapphire window
View angle: 80 °
Standard sensing area diameter: 45 mm, height 35 mm.
(dimension customized on demand)
Cooling water volume flow rate: 2 liters / minute
Operating range of the heat sink: 0°C to 150°C
Electrical resistance: 20 ohms
Connection: by grounded copper Teflon insulated wires
or glass insulation.
Instrumentation: Any voltage measuring instrument
having a 0,1mV range whenever sensing the low range
heat flux intensity is required.
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