The LMS4000 2D LiDAR sensor, when used as a standalone component in automated production, delivers precise data about the position and size of a wide variety of objects. The sensor passes this data on to an external control unit, often combined with an encoder. This results in many fields of application, such as volume and position detection of objects, pick and place or palletizing and depalletizing tasks, empty container detection, quality inspection of solar cells, engine blocks and aircraft parts, trains or tunnel walls and much more.

The LMS4000 measures objects quickly and precisely, independent of their shape, color or surface quality. The aperture angle of 70° results in a wide scanning area, which a continuous laser scans at 600 Hz using a rotating hexagonal mirror. Every scan generates 841 individual measuring points. The use of a red light laser within the visible spectrum makes precise alignment easier.

• Large working range

Objects with a height of 1 m can be measured consistently by the LMS4000 across a width of 2.6 m. For objects 2 m high, the measuring field width can be up to 1.4 m. In addition, the device variant with increased scanning range even enables the measurement of objects with a cross-section of 3 m x 3 m or even 4 m x 2 m.

• Targeted control and reduction of data transmission

The laser scanner can be switched on and off via photoelectric sensors or software commands. This ensures data is only produced when objects are actually being measured. Internal filters allow for targeted reduction of data to the specific application and thus also relieve the overall system.

• Precise and reliable measurement procedure

The continuous-wave method is based on the principle of phase correlation. The object reflects the continuously emitted laser beam onto the receiver of the laser scanner. The resultant phase delay between the emitted and received beam can be used to precisely determine the distance. At the same time, the measurement procedure is resistant to external influences, e.g. ambient light or temperature fluctuations.

• Four data channels

In addition to distance data, the sensor can also transmit reflectance, angle correction and quality values as required. This makes it possible to visualize even slight differences in object color and texture, compensate for accelerations acting on the sensor, and identify critical measurement points. The output data format can be extended or reduced individually by each channel.

• Extending the measuring range

Using multiple laser scanners prevents shadowing effects and allows larger measurement fields to be used. The system can synchronize the motors of the rotating mirrors to ensure the devices do not mutually interfere with one another.

Digital filters for pre-processing and optimizing the measured values further increase the performance of the LMS4000. This enables the laser scanner to be directly tailored to the relevant application. Faults are reliably prevented, and data quantities optimized for downstream processes.