Data acquisition
3D measurement data from a single source
M
icro-Epsilon has further extended its 3D sensor portfolio to include four different sensor ranges that perform 3D measurements on
a wide variety of target objects and surface types in industrial environments. To achieve highly accurate 3D measurements, a perfect match between hardware and software is required. Micro- Epsilon has developed a new generation of 3D sensors that not only uses high performance hardware, but also has perfectly matched software, 3D Inspect, to accompany it. This means all 3D sensors from Micro-Epsilon can now be operated using the same 3D data capture and evaluation software. Furthermore, as the sensors and software come from a single source, only one contact person is needed to help users solve complex measurement tasks.
3D SENSOR PORTFOLIO There are four sensor types available in the Micro-Epsilon 3D sensor portfolio:
surfaceCONTROL 3D 3000 series for 3D snapshots of smaller areas with highest precision.
surfaceCONTROL 3D 2500 series for 3D snapshots of large measurement areas.
reflectCONTROL 2D and 3D snapshot sensor for surface inspection and shape recognition on reflective targets.
scanCONTROL 3D laser line sensors for capturing 3D data from moving targets.
MEASURING SMALLER AREAS WITH HIGHEST PRECISION The surfaceCONTROL 3D 3000 series is a new generation of 3D snapshot sensors from Micro-Epsilon that work according to the principle of optical triangulation based on fringe projection. Using a matrix projector, a sequence of patterns is projected onto the test object surface. The light of the patterns diffusely reflected by the test object surface is recorded by two cameras. The three- dimensional surface of the test object is then calculated from the recorded image sequence and the knowledge of the arrangement of the two cameras to each other.
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The surfaceCONTROL 3D 3000 series of 3D snapshot sensors offer highest two-axis repeatability up to 0.4 μm. They are fully integrated industrial sensors (IP67) with passive cooling. Delivering up to 2.2 million 3D points per second, the 3D point cloud is delivered directly from the sensor. The sensors support the new 3D GigE Vision / GenICam standard for easy integration into existing 3D image processing tools.
INSPECTION OF LARGER TARGETS The surfaceCONTROL 3D 2500 series has been redeveloped to the newest platform and is a 3D sensor for inspection of larger targets. Measuring fields are up to 650 x 495 mm, with high measuring range depth from 150 mm to 300 mm. Data capture time is around 0.5 seconds and repetitive precision is up to 3 μm.
MEASURING FLAT, MIRROR-LIKE SURFACES The reflectCONTROL series is for 2D and 3D measurements on flat, mirror-like surfaces. It consists of a large screen that projects light patterns onto the surface which is evaluated by two cameras in the housing and a 3D point cloud generated. The sensor sends this
3D point cloud directly via GigE Vision standard to the software. The reflectCONTROL series has two
models: one for 2D measurement and the other for 3D measurement. The 2D measurement model is for surface inspection and has a measurement field of 110 mm x 245 mm and outputs 2D images for the intensity, amplitude and curvature of the captured surface. The 3D model is for 3D measurement of
the target looking at flatness and waviness. It has a measuring field of 80 x 160 mm and also outputs the 2D data but in addition provides the 3D point cloud. The sensors offer highest repeatability of ± 1.0 μm in a peak-to-valley, so that even the smallest deviations in the 10 nm range can be detected. The reflectCONTROL also supports the new GigE Vision / GenICam standards for easy integration into existing 3D image processing tools.
BUILD UP 3D DATA FROM CAPTURED 2D PROFILES The scanCONTROL series from Micro-Epsilon is a 2D laser line sensor that can build up 3D data from the captured 2D profiles. The sensor uses the triangulation principle and projects a
September 2022 Instrumentation Monthly
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