The RIEGL VQ-840-G is a fully integrated compact airborne laser scanner for combined hydrographic and topographic surveying. The system can be offered optionally with an integrated and factory-calibrated IMU/GNSS system and with an optional camera or IR rangefinder on request. The VQ-840-G is a compact and lightweight Lidar system to be installed on various platforms including UAVs.
The RIEGL VQ-840-G is a fully integrated compact airborne laser scanner for combined hydrographic and topographic surveying. The system is offered with an integrated and factory-calibrated GNSS/IMU system and can be complemented with an optional camera and further options to acquire additional data for even more precise mission results. The VQ-840-G is a compact and lightweight LiDAR system to be installed on various platforms including UAVs.
The scanner carries out laser range measurements for high-resolution surveying of underwater topography with a narrow, visible green laser beam, emitted from a pulsed laser source. Subject to clarity, at this particular wavelength the laser beam penetrates water enabling measurement of submerged targets.
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Year of introduction
Year of last update
Total Weight [kg]
18-34V DC, 110W
Type of GNSS/INS positioning system
Data storage facilities
CFAST, up to 512 GB
RiMTA ALS, RiACQUIRE, RiPROCESS, RiWORLD
Mapping of Coastal Lines; Coastline and Shallow Water Mapping; Surveying for Hydraulic Engineering; Hydro-Archaeological-Surveying
rotating scan mirror
Min. pulse frequency [Hz]
Max. pulse frequency [Hz]
Max. field of view [deg]
Max. number of recorded echoes per pulse
Full-wave form digitization
Helicopter, Fixed-wing, Gyroplane, RPAS (UAV/UAS)
Min. flying height [m]
Max. flying height [m]
Laser Pulse Characteristics
designed for combined topographic and hydrographic airborne and UAV-based survey; high accuracy ranging based on echo digitization and online waveform processing with multiple-target capability; concurrent comprehensive full storage for all measurements for subsequent full waveform analysis; high spatial resolution due to measurement rate of up to 200 kHz and high scanning speed of up to 100 scans/sec; integrated inertial navigation system; additional, fully integrated infrared laser rangefinder (on request); integrated digital camera (optional); compact, lightweight and robust housing compliant with typical hatches in aircrafts and with stabilized platforms;
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RIEGL Topo-Bathymetry Brochure.pdf7.01 MB
RIEGL VQ-840-G Datasheet.pdf8.53 MB