SpotOn Analog USB
Sophisticated Analog and Digital beam positioning system.
The system offers real time measurement of laser displacements with update rate of up to 30 KHz (for the 9x9mm PSD) and up to 60 KHz (for the 4x4mm PSD) and resolution of 1 um. Special high resolution versions with limited dynamic range are offered: up to +/- 0.1 um for the 4x4mm and up to +/- 0.2um for the 9x9mm PSD.
The system measures both CW and pulsed beams, and offers an external trigger for synchronized data acquisition.
Multiple devices control via USB port is available (up to 8 devices).
Specifications
| Parameters | Value |
|---|---|
| Wavelength | 350 – 1100 nm |
| Sensor size | 4×4 mm model SPOTANA-USB-4, 9×9 mm model SPOTANA-USB-9 |
| Usable beam size range | 9×9: 50μm < diameter < 8 mm. 4×4: 50μm < diameter < 3 mm. |
| Position accuracy | ±25 μm over 8 mm diameter using HeNe beam 0.8 mm |
| Position resolution | See brochure |
| Response time (analog) | <20 μm for 4×4 mm version, <60 μm for 9×9 mm version |
| Data update rate | Display mode: Digital 40 Hz for single head. Scope mode: Digital 4 kHz up to 2000 points in memory (position), 8 kHz up to 4000 points in memory (power). Analog mode: 30 kHz max. speed for 9×9 mm version, 60 kHz max. speed for 4×4 mm version |
| Power range | High Amplification: 1 – 250 μW, Low Amplification: 10 – 2500 μW |
| Power accuracy | ±5% |
| Power supply voltage | ±18V |
| Current consumption | 200 mA |
| Operating temperature | 0 – 50 C |












