Pulse rate
(240,000 pulses in 360° conversion)60,000Hz
FOV (field of view)
90°
Scanning speed
30scans/sec.
Accuracy of measurement distance
≧60% ±5mm
Main unit weight
(lightweight design suitable for drones)2.7kg
Laser wavelength
532nm(green laser)
SPECIFICATION
| Product name | TDOT 3 GREEN |
|---|---|
| Size (approx.) | W270 × D230 × H150mm |
| Weight (approx.) | 2.7kg (Main unit only/excluding antenna) |
Laser Scanner Specifications
| Maximum measurement distance | ≧10% 158m / ≧60% 300m over |
|---|---|
| Accuracy of measurement distance | ≧10% ≧15mm / ≧60% ±5mm |
| Pulse rate | 60,000Hz |
| Field of view | 90°(±45°) |
| Echo switching | 1st&Last ／ 4echo |
| Scanning speed | 30scans / sec. |
| Laser wavelength | 532±1nm |
| Beam spreading angle | 1.5mrad |
| Working temperature range | 0 ～ 40℃ (No condensation) |
| Longevity | 10,000 hours |
INS specification*1
| Positional accuracy | 5ｍｍ |
|---|---|
| Heading | 0.03° |
| Pitch/Roll | 0.006° |
| Speed | 0.01ｍ / sec. |
Accessory
| TDOT 3 GREEN main unit |
| TDOT GATEWAY |
| GNSS antenna |
| Exclusive hard case |
| Preview application the “TDOT PrePROCESSING” |
| User’s manual |
Option
| TDOT Installation Kit (for DJI Matrice300RTK / other drones) |
| Processing application the “TDOT PROCESSING” or “TDOT PROCESSING PRO” |
| Underwater correction system “UNDERWATER CORRECT” |
Eye safe function
TDOT 3 GREEN has an eye-safe function that limits laser output at ground altitude. Complies with Laser Class 1M.
| Ground altitude < 40m : Class 1M |
| Ground altitude > 40m : Class3R（NOHD*2:<40m） |
Depth measurement capability
At a distance of 50 m from the water surface
| R=1.0,absorption coefficient=0.25(1/m) > 1.4 secchi*3 |
| R=0.5,absorption coefficient=0.25（1/m） > 1.25 secchi |
| R=0.2,absorption coefficient=0.25（1/m） > 1 secchi |
*1 This is the accuracy after post-processing with the “POST-PROCESSING CLOUD” cloud service. A separate contract is required to use the service.
*2 NOHD (Nominal Ocular Hazard Distance) is the distance from the laser source at which the beam irradiance or radiant exposure equals the maximum permissible exposure to the eye. Even a laser beam has a spreading angle, so the further away the beam is, the more it spreads, resulting in less energy per unit area. Even if the level is dangerous at the point of emission, the further away it goes, the lower the so-called safe level below the MPE.
*3 A white disc (transparency plate or secchi plate) of 30 cm in diameter is submerged in water and the depth at which it becomes invisible is 1 secchi.
Pulse rate
(240,000 pulses in 360° conversion)60,000Hz
FOV (field of view)
90°
Scanning speed
30scans/sec.
Accuracy of measurement distance
50m ±4mm
Main unit weight
(lightweight design suitable for drones)1.8kg
Safe general-purpose laser wavelength
905nm(near-infrared laser)
SPECIFICATION
| Product name | TDOT 3 NIR |
|---|---|
| Size (approx.) | W270 × D170 × H150mm |
| Weight (approx.) | 1.8kg (Main unit only/excluding antenna) |
Laser Scanner Specifications
| Distance | ≧30%～200m over |
|---|---|
| Accuracy of measurement distance(1σ) | ±4mm@50m / ±20mm@150m |
| Pulse rate | 60,000Hz |
| Field of view | 90°(±45°) |
| Echo switching | 1st&Last ／ 4echo |
| Scanning speed | 30scans / sec. |
| Laser wavelength | 905±1nm |
| Beam spreading angle | 0.5×1.7mrad |
| Laser class | Class 1M |
| Working temperature range | 0 ～ 50℃ (No condensation) |
| Longevity | 10,000hours |
INS specification*1
| Positional accuracy | 5ｍｍ |
|---|---|
| Heading | 0.03° |
| Pitch/Roll | 0.006° |
| Speed | 0.01ｍ / sec. |
Accessory
| TDOT 3 NIR main unit |
| TDOT GATEWAY |
| GNSS antenna |
| Exclusive hard case |
| Preview application the “TDOT PrePROCESSING” |
| User’s manual |
Option
| TDOT Installation Kit (for DJI Matrice300RTK / other drones) |
| Processing application the “TDOT PROCESSING” or “TDOT PROCESSING PRO” |
*1 This is the accuracy after post-processing with the “POST-PROCESSING CLOUD” cloud service. A separate contract is required to use the service.