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World's First Datum Algorithm

With a Datum Algorithm, the reference surface is noted in order to stably detect workpieces. This algorithm is based on distance and received light pattern.

Datum tuning

Easy tuning by simply pressing the [SET] button with and without a target present.

Detection image

Detection image

CMOS light received image

received image

target

When performing the datum tuning (reference surface calibration) with a target on a conveyor (background), the values are set slightly above and slightly below the conveyor position. With no workpiece in place, the light waveform falls within this range -> [ Output OFF ].

Detection example 1

Flat workpiece

Detection image

Detection image1

CMOS light received image

received image1

target1

The CMOS light receiving position changes -> The distance changes -> The workpiece is judged as present -> [ Output ON ]

Detection example 2

Rough workpiece

Detection image

Detection image2

CMOS light received image

received image2

target2

2 peaks appear on the waveform -> The light receiving pattern changes -> The workpiece is judged as present -> [ Output ON ]

Detection example 3

Rough workpiece

Detection image

Detection image3

CMOS light received image

received image3

target3

The light is not reflected properly -> The distance changes -> The workpiece is judged as present -> [ Output ON ]