Precision sensor manufacturer Micro-Epsilon UK Ltd, Birkenhead (www.micro-epsilon.co.uk), has extended its OptoNCDT 1750 range of laser triangulation sensors with a Blue Laser version for high-speed displacement, distance and position measurement.

The 1750BL sensors are equipped with new high-performance lenses, laser control and evaluation algorithms to ensure precise measurements on different surfaces and materials.

They have an integrated controller and are available with measuring ranges from 20mm up to 750mm.

Patented by Micro-Epsilon, the Blue Laser technology offers distinct advantages compared to red-diode laser sensors.

Because the blue laser spot does not penetrate the surface of the target, a sharp image is received by the sensor, thereby enabling high-resolution measurements and reliable signal stability on shiny and translucent materials.

The measuring rate is continuously adjustable up to 7.5kHz and can be individually adapted to suit each measurement task; data output is via analogue or digital RS422 interface.

Furthermore, the OptoNCDT 1750BL provides two switching outputs that are controllable; and thanks to the ‘advanced real-time surface compensation’ feature, the sensor operates almost regardless of the target material and colour.

The exposure time or amount of light produced by the laser sensor is matched to the reflection characteristics of the target surface; this ensures reliable measurements, even on difficult and changing surfaces.

New evaluation software algorithms and enhanced components provide even higher measurement accuracy, while high-performance optics generate a small spot size on the target, thereby enabling very small objects to be measured accurately and reliably.