Precise Thickness Measurement Device for Thick Rigid Panels
STG was developed for thick rigid panels upto 40 mm. Two laser distance sensors scan the distance to the surface above and below a plate that runs through an O-frame. This directly determines the thickness of the plate.
STG is a non–nuclear technology that does not require licensing or protection guards.
STG thickness gauges are available in widths of up to 4 m
≤ 20 μm
Ultra-precise thickness measuring with an accuracy of ≤ 20 µm
Upto 40 mm
STG is suitable for material thickness of up to 40 mm
Measuring Principle
Laser Triangulation
Laser distance sensors work on the principle of optical triangulation. They traverse above and below the extruded sheet and measure the distance to the sheet surface.
These sensors are guided by linear guides and driven by a stepper motor.
A calibration curve, which is measured against a calibration tape without an extruded plate, serves as the basis for the measurement. This compares the value measured by the laser distance sensors and outputs it as a thickness value.
Technical Specifications
Technical specifications
STG
Sensor system
Laser triangulation
Max. Thickness
40 mm
Clear height
250 mm
Measurement spot diameter
0.2 mm
Sensor resolution
1 µm
Repeatability
≤ 20 μm
Measuring speed
10 – 100 mm / s adjustable
Travel speed
10 – 200 mm / s adjustable
Diameter of the roller
80 mm
Please download the PDF data sheet for detailed technical specifications!
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