Table 1 Specifications of some phase-shift T-LiDAR (terrestrial light detection and ranging) scanners and their evolution
FARO LS 880 HE80a | FARO Focus 3D 120a | Zoller + Fröhlich Imager 5003b | Zoller + Fröhlich Imager 5010b | |
|---|---|---|---|---|
Availability | Commercial | Commercial | Commercial | Commercial |
Date of introduction | 2006 | 2010 | 2003 | 2010 |
Range finder | Phase shift | Phase shift | Phase shift | Phase shift |
Wavelength (nm) | 785 (visible) | 905 (near infrared) | 780 (visible) | 1,500 (near infrared) |
Return type | Single signal | Single signal | Single signal | Single signal |
Measurement range (m) | 0.6–76 | 0.6–153 | 1–53.5 | 0.3–187 |
Range accuracy (mm) | 3 (at 25 m) | 2 (at 25 m) | 3 (at 25 m) | 1 (at 25 m) |
Spot size at exit (mm) | 3 | 3.8 | 3 | 3.5 |
Beam divergence (mrad) | 0.25 | 0.16 | 0.22 | 0.3 |
V x H field of view (°) | 320 x 360 | 305 x 360 | 310 x 360 | 320 x 360 |
Acquisition rate (pts/s) | 120,000 | up to 976,000 | up to 500,000 | up to 1,016,000 |
Weight including peripherals (kg) | 18.5 | 5 | 16 | 11.5 |