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Emerald Group Publishing Limited
Copyright © 2010, Emerald Group Publishing Limited
SICK displacement sensor delivers precision measurement
Article Type: New products From: Sensor Review, Volume 30, Issue 4
SICK UK, an international sensor and sensing systems manufacturer, has launched a new series of displacement sensors to deliver precise high-speed laser measurement of position, height and thickness.
The OD Precision and OD Value sensors meet maximum accuracy and speed demands when measuring objects in the micron range. The OD series is suitable for a wide range of applications and is ideal for use in the electronics, automotive and packaging industries, as well as in robotics.
The sensors can be used to monitor the presence and position of objects as well as measuring profiles, diameters and width. The innovative range can detect the slightest unevenness and the smallest deviation or indentation, making it ideal for use in quality inspection, where micron-accurate detection capability matters, such as in-line quality inspection, process regulation or product classification.
The OD Precision and OD Value can also be used to accurately determine the thickness of glass, where only a single sensor head is required.
The OD series is IP67 protected and incredibly easy-to-use, the sensor is taught via SICK’s intuitive teach-in interface.
The OD Precision series offers a total of eight sensor head variants for five different measurement ranges, from 24-26 mm to 300-700 mm, and resolutions of micron accuracy. Short distance measurement sensor heads are available with a small or wide light spot, ensuring precise balance over a larger area and a wide range of materials, while eliminating the possibility of interference, from surface scratches for example.
The OD Precision series offers versatility in matching existing plant control systems with both NPN and PNP evaluation unit configurations. By combining values from up to three sensors through one controller, measurements such as thickness, planarity or centricity can be obtained.
Alternatively, the OD sensor head can be used as a stand-alone device without an evaluation unit, for example, in a robot or handling system, and integrated with the automated control system via an RS422 interface.
The OD Value is a cost-effective solution, with four ranges from 26-34 mm up to 60-180 mm and micron resolution accuracy. Utilising CMOS technology, the OD Value is capable of precisely measuring the position of light, dark and highly reflective objects using small light spots.
The OD Value series is highly flexible, with four different interfaces requiring no supplementary evaluation unit. In addition to the RS-422 variant with a switching output, there is a pure switching variant with two switching outputs, as well as analogue current or voltage outputs (4-20 mA or 0-10 V) and two switching outputs. Both PNP and NPN compatibility is available.