Disc (GB)'s flare for latest laser focus non-contact measurement technology

Citation

(2002), "Disc (GB)'s flare for latest laser focus non-contact measurement technology", Sensor Review, Vol. 22 No. 4. https://doi.org/10.1108/sr.2002.08722daf.006

Disc (GB)'s flare for latest laser focus non-contact measurement technology

Disc (GB)'s flare for latest laser focus non-contact measurement technologyKeywords: Metrology, Lasers

A competitively priced bench top, non-contact 3-D measuring machine is now available from Disc (GB) of Hatton in Derbyshire, UK, which incorporates a laser-based high speed auto-focus system (see Plate 6). This development provides a high accuracy Z-axis capability and, through the machine's intelligent illumination system, is able to measure components with low levels of surface contrast, such as ceramic substrates.

The compact elevating bridge design OGP SmartScope, designated Flare 200, has a measuring volume of 200mm x 200mm x 150mm with a scale resolution of 0.5micron.

It has a 12.1 programmable zoom lens which is able to create up to 560 times on-screen magnification and uses laser triangulation technology for positioning when travelling through its entire Z-axis range, which it can in under two seconds. This action is twice quick as a conventional auto focus system.

Plate 6 Flare from Disc (GB)

The latest solid state profile illumination incorporates back lighting comprising a patented linear LED array that is mounted below the glass stage which supports the component to be measured. In operation, the LEDs track the optical system as it moves in the X-axis and so automatically optimises the number and position of activated LEDs to suite the magnification. Also, a patented eight sector/six ring white light SmartRing® is standard and, as an option, a low incidence SmartRing fibre optic light can be specified.’The use of white light in this way’ensures the most effective colour imaging’and’complements the function of the LEDs.

Image processing is through 256 level grey scale with a 10.1 sub-pixel resolution and intelligent algorithms that automatically filter out noise. They also smooth any rough edges and enhance contrast on the part being processed. Such is the level of algorithm development by OGP that minor contamination and even dirt on the component, can be disregarded during the measurement process.

OGP's 32-bit Measure-X® for Windows® dimensional measurement software incorporates image processing tools able to handle geometric functions and transfer live data for SPC and custom reporting software.

Contact: Mr Andrew Fulton, Managing Director, DISC (GB) Limited, DISC House, Station Road Industrial Estate, Hatton, Derbyshire DE65 5DU, UK. Tel: 01283 520127; E-mail: sales@discqb.com; Web site: www.discgb.co