High-speed, High-accuracy CCD Laser Displacement Sensor
High-accuracy Ernostar Lens, and Other Unparalleled, Advanced Technologies
KEYENCE has further improved the CCD sensor technology of the well-established LK Series and has developed new technologies including the Li-CCD and high-accuracy Ernostar lens
Since a CCD has digital output characteristics for each pixel, the
errors caused by gradual outputs generated at the edge of pixels
were the barrier to higher accuracy. As a countermeasure, KEYENCE
has developed an Li-CCD that outputs the position of reflected
light in a pixel, achieving excellent accuracy that is two times
higher than conventional models. In addition, the dedicated design
of the sensor has achieved a speed that is 25 times faster and a
sensitivity 10 times better than conventional models.
* Li-CCD= Linearized CCD
The measurement principle uses triangulation. The position of the reflected light on the Li-CCD moves as the position of the target changes. The displacement amount of the target is measured by detecting this change.