Thermal Sensors - OPHIR vega User Manual

Laser power/energy meter
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2.2.3. Updating the firmware of the Vega.
1. Download the latest firmware version of the Vega
from the Ophir website:
and copy to your target directory.
2. Turn on the Vega.
3. Connect the USB communication cable to the Vega
and the PC.
4. Using the StarLab software press "select device".
5. Select Vega. The device name will be highlighted in
blue.
6. Select "upgrade Vega".
7. Browse and select the file N2AXXX.BIN, where XXX is
the latest firmware version of the Vega.
8. Press "start".
9. The status will show "programming" for several
minutes.
10. The status will show a green V sign and state
"finished".
11. Press "Done".

2.3 Thermal Sensors

2.3.1. Use of Vega with thermal type sensors.
Most Thermopile sensors have somewhat different
absorption at different wavelengths.
compensate for this, each sensor has been calibrated by
laser at several wavelengths. When you choose the
correct laser wavelength, the correction factor for that
wavelength is automatically introduced. Note that the
laser wavelength correction in use is displayed in the
upper left corner of the display.
Thermopile sensors with the LP1 absorber have large
variation of absorption at different wavelengths.
Therefore a continuous spectral curve is stored in the
sensor, enabling the user to choose the desired
wavelength from the range specified in the specification
sheet and the correction factor for that wavelength is
automatically introduced
www.ophiropt.com/photonics
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