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6. Appendices
Specifications and Performance
■ SR-NIR Specifications and Performance
Optical system
Objective lens
Focal length
f=82 mm F 2.5
Eyepiece lens
Viewfinder visual field
5°
Diopter adjustment range ±5 diopt
Spectroscope
Spectral wavelength width
5
‒
8 nm
Spectroscopic method
Polychrometor
Dispersion element
Diffraction grating
Photo detector
Electronic cooling linear array sensor
Measuring angle
2°/ 1°/ 0.2°/ 0.1° Electrical changing type
Measuring distance
350 mm
‒
∞ (Distance from the objective lens hardware tip)
Measuring wavelength range
600 nm
‒
1030 nm
Wavelength resolution
1 nm
Measurement mode
Auto/Manual (Frequency/Integral time), and input of external vertical
synchronizing signal
Measuring diameter
(mmø)
Measuring angle
Measuring distance (mm)
350
400
500
600
800
1000 2000 5000
2°
10.0
11.7
15.1
18.6
25.4
32.2
66.4
169
1°
4.99
5.84
7.55
9.26
12.7
16.1
33.2
84.4
0.2°
1.00
1.17
1.51
1.86
2.54
3.22
6.64
16.9
0.1°
0.50
0.59
0.76
0.93
1.27
1.61
3.32
8.44
* The measuring distance is the distance from the objective lens hardware tip.
* The values in this table are design standard values and are different from the
real diameters from time to time.
Measuring function
The following measurement can be done.
•
･
Le
(Le: Spectral radiance W/sr
･
m
2
)
Measuring time
Approx. 1
– 31 seconds (excluding communication time)
Communication time
Remote (USB communication) STB command
Approx. 0.9 sec.
Remote (USB communication) ST command
Approx. 2.2 sec.
Remote (RS232C communication) ST command
Approx. 7.1 sec.
*Communication time is changed due to the PC operating environment or others.
Linearity
Within ±7% (600nm
– 1030nm against our company’s standard light source)
Repeat accuracy
±2% or less (600nm
– 1030nm against our company’s standard light source)
