Fast and accurate measurement of problematic surfaces using new laser displacement sensor

Citation

(2003), "Fast and accurate measurement of problematic surfaces using new laser displacement sensor", Sensor Review, Vol. 23 No. 1. https://doi.org/10.1108/sr.2003.08723aad.001

Fast and accurate measurement of problematic surfaces using new laser displacement sensor

Fast and accurate measurement of problematic surfaces using new laser displacement sensor

Keywords: Distance, Lasers

Matsushita Electric Works has enhanced its range of measurement sensors by introducing the new SUNX HL-C1 laser measurement system (Plate 1). Using charged coupled device (CCD) based technology, the sensor is able to quickly and precisely inspect surfaces that have historically posed problems for analogue based non-contact measurement equipment. Black rubber and specular objects, including glass and wafers, can now be reliably and accurately measured using the new SUNX HL-C1 laser based measurement system.

Plate 1 SUNX HL-C1 laser measurement sensor

Suitable applications for the HL-C1 series include measurement of the eccentricity of steel shafts, co-planarity of IC pins, thickness measurement of brake discs and tyre tread measurement.

Containing an extremely compact controller, the unit can accept the connection of up to two measurement sensor heads. This allows thickness measurement to be carried out easily using built in calculation functions. The sensor heads themselves are available in two styles: one for measurement of diffuse type surfaces, including black rubber and machined metal; and the other for specular objects such as glass and highly reflective surfaces. Both styles offer two measurement ranges and are capable of measuring to accuracies of 1 μm.

Configuration of the controller can be performed using either a compact touch screen console or PC based configuration software via the built in RS232C communications port. This port can also be used to transmit measurement data to a third party device, or the internal decision-making capability can be utilised and information accessed via digital I/O connections.

For further information, please contact: Matsushita Electric Works UK Limited, Ian Purcell, Matsushita Electric Works UK Limited. Tel: +44 (0) 1908 231555; Fax: +44 (0) 1908 231 599; E-mail: purcell@mew.uk.com