Product category:
Form/co-ordinate, optical and vision instrumentation
News Release from: Renishaw | Subject: ML10
Edited by the Engineeringtalk Editorial
Team on 05 August 2005
Laser interferometer takes centre stage
Polielettronica uses a laser interferometer measurement system with linear and angular optics to determine the precise positioning capabilities of its x-y stages.
Founded in 1963, Polielettronica specialise in the development and manufacture of professional photographic scanning and printing equipment The quality of images produced by such machines is highly dependent on the positioning and movement characteristics of equipment heads
This article was originally published on Engineeringtalk on 11 Jan 2006 at 8.00am (UK)
Related stories
Costs cut at CNC water-jet cutting machine maker
Renishaw's ML10 laser interferometer measurement system and QC10 ballbar reduces manufacturing costs and increases machine accuracy at Czech CNC water-jet cutting machine maker.
Laser calibration system gains USB interface
Renishaw's new DX10 interface is designed to connect its market leading ML10 laser calibration system and EC10 environmental compensator unit to PCs via an industry standard USB connection.
Polielettronica operates a corporate policy of continuous research and development in new technologies, a policy that resulted in a requirement to produce a highly accurate x-y movement stage, the use of which enhances scanning head resolution and hence improves the quality of scanned images.
The x-y stage needed to be reliable, accurate, easy to manufacture in large quantities, and required positional movements of 5um, with a positional accuracy of 0.05um.
To verify the performance specifications of the manufactured stages Polielettronica purchased a Renishaw ML10 laser interferometer measurement system with linear and angular optics.
Each stage undergoes linear measurement tests with the Renishaw laser interferometer measurement system during production to determine positioning capability.
Adjustments for any detected errors are made via the electronic equipment driving the piezo actuators.
A custom designed solution incorporating kinematic optical mounts and dedicated fixturing ensured fast and simple changes to the laser's optical configuration during stage testing.
In addition to these standard linear tests with the laser interferometer system, dynamic test data can be used to compensate for errors introduced by the acceleration and deceleration forces acting on machine print or scanning heads during movement.
Angular testing with the laser interferometer system is primarily reserved for use in corporate research and development activities rather than scheduled production. Request a free brochure from Renishaw ...
• Renishaw: contact details and other news
• Email this article to a colleague
• Register for the free Engineeringtalk email newsletter
• Engineeringtalk Home Page
