Oryx LF Series Non-Contact Online Thickness Measurement Gauges

The LF is an online laser thickness gauge designed for measuring the thickness of metal, plastic, rubber and most materials produced in sheet or strip form. This allows improved process control , productivity and scrap reduction.  Also known as the “O” frame, this system is a standard product that can be customized to each customers web width requirements.

Principle of operation:

Two non-contact displacement sensors are mounted above and below the material to be measured. Their beams focused on the same spot on the target. Each sensor determines the distance to the target. The thickness of which can be calculated.


  1. Easy installation - The system is plug and play. The quick connect cable from controller to Oframe is 5,10 or 20 meters long.
  2. O-frame positioned by electric servo drive. This allows automatic positioning of the measuring point or scanning of the material to produce a cross web profile.
  3. Automatic calibration - The system maintains calibration accuracy and re-calibrates if a temperature change is sensed.
  4. Water cooling option if required when the material being measured is at a high temperature.
  5. High precision.


  • Plastic
  • Metal
  • Film
  • Fiberglass
  • Foam and woven materials
  • Lead acid

Technical Specifications:

Thickness Range0.2 mm to 20 mm (0.008 “ to 0.8 “)
Light Source650 nm visible light class II(FDA)
Laser Power4.8 mW maximum
Sampling frequency1 kHz to 50 kHz
Input power115 – 235 VAC 50/60 Hz 5 A
Scanning SpeedUp to 400 mm/s
Measuring range± 5 mm to ± 25 mm depending on model
Web Width500, 1000, 2000, or 2800 mm depending on model
Resolution0.1 µm 0.2 µm or 0.5 µm depending on model
Temperature range Ambient10 ° C to 50 °C
Accuracy±2.5 µm