Verification and Validation of Sensors and Systems

Equipment and specifications of the test laboratory for the verification and validation of environmental and application conditions as well as carrying out technical feasibility studies.

Equipment for carrying out technical feasibility studies

Multi-view 3D measurement cell for small measurement volumes

High-precision 3D full-body measurement of small measurement volumes. Reference measurement system in terms of achievable accuracy when recording surface properties.

Features of the multi-view 3D measurement cell for small measurement volumes:

• Self-calibration of the measurement system
• Automated full-body measurement
• Measurement uncertainty: 0.5 µm - 15 µm
• Possible measurement volumes: Ø 40 mm and height 20 mm or Ø 180 mm and height 90 mm

Mobile 3D measurement system for large measurement volumes

Standard laser scanners can be used to demonstrate the general technical feasibility of 3D shape capture of large measurement volumes. By recording 3D point clouds and 2D panoramic color images, the general suitability of the measurement object for 3D visual inspection and processing can be determined.

Components and features of the mobile 3D measurement system for large measurement volumes:

Features of laser scanner:

• Measurement range: 0.6 - 70 m
• Angular range: 360° field of view
• Measurement accuracy: ± 1 mm
• Data rate: 122,000 - 976,000 points/sec
• Measurement time: 3 min - 2 h

Features of laser tracker:

• Measurement range: 2 - 80 m
• Angular range: 360° horizontal, 130° vertical
• Measurement accuracy: length 16 µm + 0.8 µm/m, angle 20 µm + 5 µm/m

Equipment for the verification and validation of environmental and application conditions

Sensors and systems can be tested under experimentally reproducible environmental and application conditions for various temperature and humidity ranges. Fog and ambient light influences can also be investigated. A complex mounting system allows sensors and systems to be flexibly mounted and positioned for examination and testing.

Test laboratory for environmental influences - climate chamber

Features of the climate chamber:

• Temperature range: -10°C to +100°C
• Humidity range: 10% to 98% r.h.
• Working volume: H: 1250 mm, W: 973 mm, D: 576 mm
• Interface: Ethernet (remote control and request possible)

Test arrangement for monitoring human-machine interaction

Features of the test arrangement for monitoring human-machine interaction:

• Fog machine: testing the influence on visibility
• Ambient light arrangement: testing the influence of adjustable lighting modalities
• Pick and place robot system: performing human-machine interaction based on the results of the measurement system under investigation with influenced visibility and controlled ambient light influence

Test arrangement for simulating transport and impact processes

Features of the test arrangement for simulating transport and impact processes:

• 2m long linear axis for testing transport and impact processes
• Testing the measurement quality while the sensor or measurement system is moving

Motion capture system for object tracking and recording human movements

Motion capture is a tracking method for capturing and recording movements so that they can be played back on a computer, analyzed, processed and used to control applications.

This can be used for the following applications:

• Validation of tracking algorithms on the basis of 3D camera data
• Object tracking in the workspace of people for interaction with robotic systems
• Calibration of robotic systems
• Initial value for extrinsic camera calibration of 3D cameras to each other
• Recording of human movements and their analysis
• Validation of robotic path planning algorithms

Features of the motion capture systems:

Camera data:

• Camera resolution: 5 MP
  
• Measurement frequency: 420 fps at full resolution, max 2,000 fps at reduced resolution
• Latency per camera: < 2 ms
  
• Certified: MDD 93/42/EEC (EN ISO 13485:2012) and ISO 9001

System parameters:

• Measurement range: 9m x 9m x 2m
  
• Tracking: Rigid body tracking for up to 100 objects simultaneously
  
• number of cameras: 12