DLP2010NIR: Calibration points for NIR SCAN

Hello Hiroyasu,

The NIRscan Nano evaluation modules are calibrated at the factory with seven wavelengths from one calibration source and two wavelengths from a second calibration source to ensure full coverage across the bandwidth of the instrument. An example of wavelength calibration can be found in the GUI source code. This procedure requires hardware and procedures not supplied with the evaluation module, so it is not intended to be recalibrated outside the factory.

The wavelengths used are not at regular intervals. This is because the wavelengths used are limited to the achievable wavelengths with emissive or absorptive calibration reference standards. One could in theory calibrate an instrument like this at regular wavelength intervals with a monochromator which has been previously calibrated, but in practice it is usually easier and more accurate to directly use calibration standards because of their greater signal intensity and lower uncertainty compared to a monochromator.