Optical laser displacement sensors are used on straightening plants to measure material thickness and prevent damage. Two sensors are mounted above and below moving panels to detect double sheets and measure upright edges accurately by coupling distance measurements. The sensors are protected from harsh ambient conditions like dirt and scale in enclosed housings flushed with compressed air to prevent deposits.
This instrument is professionally applicable to the determination of heat shrinking performance and dimensional stability of various films, heatshrinkable tubes, hard PVC films for tablets, and back-sheets in the fluid medium at different temperatures.
This instrument is professionally applicable to the determination of heat shrinking performance and dimensional stability of various films, heatshrinkable tubes, hard PVC films for tablets, and back-sheets in the fluid medium at different temperatures.
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Introduction of SG-A CMOS Image Sensor Tester
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App141 en measurement-inspection-laser-welded-seams
App036 en thickness-monitoring-straightening-plants
1. A036_e
Laser-optical displacements sensors
optoNCDT
Thickness monitoring on straightening plants details
Technical
- Measuring range: ± 50 mm
Optical laser displacement sensors are employed in
- Accuracy: ± 1,5 mm
front of the inlet for panels on straightening plants to
- Resolution: 0,10 mm
prevent damage to the plant. The sensors enable the
- Band width: quasi static
detection of double sheets and an accurate
- Base distance: 670 mm
acquisition of upright edges.
For this task a sensor is mounted above and below
the moving panels. Irrespective of the actual position
Measurement system
of the panels, the accurate material thickness is
2 x ILD 2010-500 - Laser-based optical
obtained by simple coupling of the synchronously
displacement sensor
measured distance values from both sensors. The
2 x SGH2010 - Protective housing
sensors are mounted in a protective housing. The
glass guard is flushed with oil-free compressed air in
Further processing depends on requirements:
order to prevent deposits.
- Analog or computer-aided system with linearity
monitoring.
Ambient conditions
- Temperature: Room temperature
Reasons for the system selection
- Medium: Harsh ambient
- Non-contact and wear-free
Dirt, scale
- Large base distance with a small measuring spot
- High accuracy even with different steel surfaces.
- Visible laser - Protection Class 2
Principle
Sensor 1
Sensor 2
Picture: SMS Schloemann-Siemag AG, Düsseldorf
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