Part

Lidar

You might say: laser scanner

Lidar measures distance with laser returns and assembles those samples into a scan or point cloud.

What it does

It supplies geometry for mapping, localization and obstacle detection, often with less dependence on visible colour than a camera.

Ask

What range, angular resolution, field of view, point rate, reflectivity and weather limits are acceptable?

What to look for

1. Laser-return scan
2. 2D plane or 3D spinning samples
3. Point cloud from distance measurements

Catalogue: Lidar

• 2D scanning: A 2D scanner samples one plane. SICK TiM571 provides a 270° scanning angle. Sampling one plane defines it; SICK TiM571 is one example.
• 3D spinning: A 3D spinning lidar samples many vertical channels while rotating; Ouster OS0 offers configurable channel and horizontal resolutions. Sampling many vertical channels while rotating defines it; Ouster OS0 is one example.
• Solid-state: A solid-state lidar uses electronic scanning with no internal moving parts.

Sources

1. Ouster, OS0 Rev8.0 Datasheet, pp. 1 and 3The Rev8 OS0 lidar sensor features 35 m range
2. SICK, TiM571-2050101 Data Sheet, pp. 2–3Measurement principle HDDM Light source Infrared (850 nm) Laser class 1 (IEC 60825-1:2014, EN 60825-1:2014+A11:2021) Aperture angle Horizontal 270° Scanning frequency 15 Hz Angular resolution Horizontal 0.33° Working range 0.05 m ... 25 m

Use it on your project

teardown-apply: hold "Lidar" (lidar) from the teardown at https://teardownatlas.com/robotics/ against my project

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