Table 2 Specifications of some time-of-flight T-LiDAR scanners and their evolution (for RIEGL scanners)
RIEGL LMS-Z420ia | RIEGL LMS-VZ1000a | OPTECH Inc. Ilris-3Db | Echidna®c | |
|---|---|---|---|---|
Availability | Commercial | Commercial | Commercial | Experimental |
Date of introduction | 2003 | 2010 | 2002 | 2005 |
Range finder | Pulsed time-of-flight | Pulsed time-of-flight | Pulsed time-of-flight | Pulsed time-of-flight |
Wavelength (nm) | 1,550 (near-infrared) | 1,500 (near-infrared) | 1,535 (near-infrared) | 1,064 (near-infrared) |
Return type | First / last signal | Full waveform | First / last signal | Full waveform |
Measurement range (m) | 2–1,000 | 2.5–1,400 | 3–1,500 | 1–100 |
Range accuracy (mm) | 10 (at 50 m) | 8 (at 100 m) | 7 (at 50 m) | 30 (at 100 m) |
Spot size at exit (mm) | 8 | 7 | 14 | 29 |
Beam divergence (mrad) | 0.25 | 0.3 | 0.15 | 2 - 15 (selectable) |
V x H field of view (°) | 80 x 360 | 100 x 360 | 40 x 40 | 267 x 360 |
Acquisition rate (pts/s) | up to 11,000 | up to 122,000 | up to 10,000 | up to 10,000 |
Weight including peripherals (kg) | 18 | 12 | 20 | ~ 40 |