Opto-Electronics


New laser sensor technology detects difficult targets

29 September 2021 Opto-Electronics

Omron has launched a new E3AS-HL CMOS Laser Sensor with sensing technology that significantly improves detection capability using an industry-first Laser Class 1 CMOS laser sensor equipped with an FPGA. Reliable detection of difficult-to-detect targets helps eliminate the need for time-consuming installation design and adjustment at equipment commissioning.

Detection using conventional reflective photoelectric sensors is affected by the target colour, material or surface and human experience and skills are required to design and adjust the sensor installation for each target. This issue often arises in the automotive and food industries where various targets with complex shapes and glossy surfaces are detected.

The new laser sensor can reliably detect targets that cannot be detected with reflective photoelectric sensors. Its sensing algorithm reaches high-speed sampling at 10 000 times per second and Omron’s unique accumulation processing increases sensitivity by amplifying the slightest amount of light bounced off the target. The manufacturing technology adjusts the receiver lens position in the sensor to the micrometre level, enabling reliable detection of any target colour, material and shape.

These technologies allow the E3AS-HL to reliably detect curved and irregularly shaped glossy automotive parts and multi-coloured and glossy food and packages. It can be used in place of reflective photoelectric sensors and helps significantly reduce the time required to adjust the sensor installation position and angle and the threshold values.

An antifouling coating on the sensing surface ensures stable operation even in harsh environments and an OLED display together with teaching function enables easy, quick and optimal setup.


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