Duma Optronics

Position Sensing

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SpotOn Compact

High accuracy compact beam positioning system. No need for manifold box. 

Built-in electronics within sensor head.

Measure both position and power, available with dual axis Lateral effect detector (down to 0.1um resolution @ 50Hz digital filter, +/-6um absolute accuracy), or with 4-Quadrant detector (accuracy down to +/-0.025% of beam diameter).

Specifications

This product is designed to measure optical beam position of CW BEAMS ONLY

Detector L – Lateral Effect L04 Q – Four Quadrant
Size  9 x 9 mm  4 x 4 mm  10 x 10 mm 
Type  Dual axis Si, No glass cover  Dual axis Si, No glass cover  4x Si sectors seperated by 30 μm gap, No glass cover 
Usable beam size  ⌀50μm to ⌀9 mm  ⌀50μm to ⌀4 mm  ⌀50μm to ⌀5 mm 
Poisition measurement range  ⌀9 mm  ⌀4 mm  One beam radius up to ±2.5 mm 
Position resolution  Down to 0.1 μm at 50 Hz digital filter plus averaging  Down to 0.1 μm at 50 Hz digital filter plus averaging  Down to 0.25% of beam size 
Position accuracy  ±12.5 μm over 9 mm dia.  ±6 μm over 4 mm dia.  ±1μm or ±0.025% of beam size 
Update rate  Max 150 Hz at 500 Hz digital filter 
Spectral range  350 – 1100 nm 
Power range  1 μW to 10 mW with attenuating ND filters 
Power accuracy (*)  ±5% 

(*) – To maintain full calibration accuracy, attenuating optical filters may be necessary for operation with beams greater than 1 mW. Saturating “non-linear” effects depend on the beam size, type and wavelength, but caution should be exercised when using the 4Quad PSD above 3-6 mW or the Lateral Effect PSD above 1-3 mW.

The unit comes with USB2.0 interface, detector and software work with Windows XP/Vista/7/8/10.

Ordering Information

SPOTCOM – Complete system including sensor head, USB2.0 mini 1.8m cable, software and user manual on CD, Carrying case. Select anyone of the heads, calibration files are saved on the PSD heads and load automatically to the software:

L – Lateral effect PnP 9mmX9mm, no glass cover

Q – Four quadrant PnP 10mmX10mm with 30um gap, no glass cover

L04 – Lateral effect PnP 4mmX4mm, no glass cover


 

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