In the interaction of lidar, Laser triangulation and time-of-flight technologies, 3D sensors develop their full potential to precisely capture spatial data. In our article we shed light on it 3D-Sensor New developments and the dynamic applications of these state-of-the-art sensors. Learn how these new developments are transforming the 3D capture landscape.

Contents

• Smartrunner checks position in battery production
• 3D vision sensor for greater precision and variety
• Compact 3D sensors with optimized laser triangulation
• Profile sensor with optimal visibility in the 3D light section
• Distance sensor with fast time-of-flight measurement method
• Light section sensors measure edges, heights and curves
• Intuitive 3D inspection with configurable 3D vision sensor

Smartrunner checks position in battery production

June 07.06.2022, XNUMX | The connected film layers create cells that are assembled into finished battery packs. During production it is important that everyone needed battery cells actually exist and are in the correct position in the specified grid. Created for verification purposes Vision sensor Smartrunner Explorer 3D by Pepperl + Fuchs a precise 3D point cloud image.

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Vision Sensor 3D for greater precision and variety

11.01.2022/XNUMX/XNUMX | The vision sensor Smartrunner from Pepperl + Fuchs becomes more diverse. While previous vision sensors were generally designed for individual, specific tasks, the new Smartrunner product family is suitable 3D explorer for a wide range of applications that require high precision. The two vision sensor variants Stereo Vision and Time of Flight (ToF) are based on one and the same platform.

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Compact 3D sensors with optimized laser triangulation

February 21.02.2019, XNUMX | AT – Automation Technology presents a world first with the MCS series of modular high-speed 3D compact sensors optimized for laser triangulation. This allows users to configure the solutions they need for their applications themselves. 

You enter the required performance data such as scan width (x-FOV), distance, position, points per profile and scan speed and receive a perfectly tailored, composed of appropriate modules 3D sensor.

The MCS series complements the C5-CS series of preconfigured high-speed 3D compact sensors. Combine the sensors of both series High-end 3D technology and most modern Laser electronics in a compact housing with protection class IP67, which allows use even in the harshest industrial environments.

Thanks to the optimized triangulation setup, they deliver highly accurate measurement results, even for distant areas of the test surface, as the detector and optics are arranged according to the Scheimpflug principle. The sensors are factory calibrated and with GigE Vision via 5 to 24 volt digital inputs and outputs up to RS422.Encoderinterface equipped.

Customized solutions for laser triangulation

All configurations can also be done with Dual head sensor, i.e. two modules. This enables an even higher quality of measurement through occlusion-free 3D images as well as the combination of sensor modules with different performance data that carry out different measurement tasks in parallel. This means that uncomplicated, tailor-made solutions are also available for all laser triangulation applications in which several properties of components are examined, for example geometry and surface properties of the wooden object.

The current sensor modules of the MCS series with optimized Laser training support output of up to 2048 points per profile and achieve a profile speed of up to 200 kHz. They have a scan distance (x-FOV) of 130 to 1200 mm and a z-range of 100 to 800 mm as well as a triangulation angle of 15 to 45°. Depending on the configuration, the resolution x is between 80 and 580 µm and the resolution z is between 2 and 22 µm. The laser is available in red or blue.

Profile sensor with optimal visibility in the 3D light section

01.02.2019/XNUMX/XNUMX | The of Vision Components The “Ambient Light Suppression” technology developed enables measurements with laser profile sensors at ambient light intensities of up to 100.000 lux. The process is being used for the first time in the intelligent profile sensors of the “VC Nano3D-Z” series, which provide the best results compared to the market.

The high insensitivity to external light results from an extremely powerful laser combined with very short shutter rates. The blue laser has a wavelength of 450 nm and is classified as Class 2. The new Light section sensors are suitable for a wide range of applications and are particularly good for metallic surfaces.

Thanks to "Zynq-Soc" from Xilinx, the embedded vision systems can 3D profile calculation can be configured for additional tasks. For this purpose, the FPGA integrated in the Soc module was programmed to calculate the 3D point cloud. The powerful ARM processor with 2 x 866 MHz can therefore be used flexibly for application-specific purposes as required Image Processingprogramming tasks.

Thanks Zynq Soc Xilinx's embedded vision systems can be configured for additional tasks in addition to 3D profile calculation. For this purpose, the FPGA integrated in the Soc module was programmed to calculate the 3D point cloud. The powerful ARM processor with 2 x 866 MHz can therefore be flexibly programmed for application-specific image processing tasks as required.

Distance sensor with fast time-of-flight measurement method

Sep 27.09.2018, XNUMX | The radar in air traffic control or the lidar in meteorology - both methods are based on the same principle: a signal is emitted and reflected by the object to be measured. This so-called time-of-flight method is also the basis for the new one distance sensor of the PMD OGD series by IFM Electronic.

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Light section sensors measure edges, heights and curves

07.02.2017/3/XNUMX | With its compact, calibrated XNUMXD Light section sensors "Poscon" offers Baumer a unique solution portfolio for the efficient measurement of object geometries. The sensors using the light section process close the gap between tactile sensor solutions and complex 3DMeasurement Technology. 

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Intuitive 3D inspection with configurable 3D vision sensor

08.12.2015 | Sick presents the “Trispector 1000” for the first time, a 3D vision sensor that solves inspection tasks through simple configuration, standalone and without programming. This simply transfers the idea of ​​2D vision sensors like the Inspector into the 3D world. Applications can be found in quality control in the consumer goods and packaging industries.

Here the sensor system counts and positions the objects and measures their volume and thickness. Also for them Volume measurement in the food industry as well as for checking the integrity of containers including checking the contents, completeness and emptiness are applications.

The Trispector 1000 creates 3D images of moving objects, for example, directly in the production line. It uses laser triangulation to capture height profiles to create a 3D image of the object. A configurable object finder and analysis tools are applied to the 3D image directly in the sensor. The evaluation is carried out via simple switching outputs or Ethernet network to the higher-level tax system. The Trispector 1000 is available with three different fields of view for different applications.

Intensity data improves the 3D navigation and allow checking whether a label or printed pattern is present or the object is rotated. Thanks to its intuitive user interface, the Trispector 1000 is easy to set up and operate. Even a quick device replacement is easily possible thanks to the large field of view and the reuse of saved settings. The robust IP67 metalcasing with plastic windows ensures the necessary protection of the sensor - even from the harsh conditions in the Food industry.

Source: This article is based on information from the following companies: Automation Technology, Baumer, IFM Electronic, Pepperl+Fuchs, Sick, Vision Components.

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