SEC2000 Operating Manual
SEC2000 Spectra System
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36
①
First, the light source and detector of SEC2000 are set as shown in Fig. 5-5-2.
②
The power supply is switched on and turned ON the UV lamp and halogen lamp.
Wait for 20 to 30 minutes until the lamps are stabilized.
③
Open the software and click “
Go
” icon, the spectrum signal will appeared. On
Scope Mode, open the light source shutter. Put the reflection probe to the
standard reflective material. Move the probe tip to adjust the reflection light
intensity to maximum. Fix the probe tip to holder by screw, and then the distance
from the tip to measurement surface is fixed.
④
Adjust the Integration Time to control the maximum value of the Y axis of the
graph (less than 16,000).
⑤
By clicking the “
Reference
” icon in the program, the spectrum is obtained at the
maximum light intensity. Save the reference spectrum by “
File
”/”
Save
”/
”
Reference
”.
⑥
Close the light source shutter (Do not close the power switch), and click the
“
Dark
” icon in the program to obtain a spectrum under the minimum conditions
without light. Save the dark spectrum by “
File
”/”
Save
”/”
Dark
”.
⑦
Put the reflection probe to sample surface, and open the light source shutter fully.
Click the “
Reflectance Mode
” icon to change the Mode. Save the spectrum by
“
File
”/”
Save
”/”
Processed
” or “
Sample
”.
5-6. Irradiance Measurement
Have you ever seen the colors of light emitted by the sun, fluorescent lights, white
lights and lamps? These colors look white to our eyes. Red, yellow and green traffic
signal colors are radiation of light. The material emitting light is called the light source.
The emission of light by the light source is called Luminescence.
How is the color of the light source generated? Shall we perform experiments for the
Luminescence Spectrum of the light?
5-6-1. Relative irradiance measurement
①
First, connect the detector of SEC2000 and integrating sphere by optical fiber. Set
the standard light source to integrating sphere as shown in Fig. 5-6-1.
②
Turn on the power of the standard light source. Wait for 20 to 30 minutes until the
