Posted to News on 29th Sep 2007, 19:17
Code reader sees through paint, grease and other coatings
Pryor Marking Technology is launching a new low-cost, ultrasound code reader named Locus. This handheld reader is able to decode Data Matrix and human readable marks concealed by paint or other industrial coatings including oil and grease to a depth in excess of 1mm. Pryor is confident that there will be an immediate demand for this capability in markets including aerospace, automotive and defence, as well as the harsh and challenging environment of the oil and gas industries.
John Kidder, commercial operations manager at Pryor Marking Technology, explains: "The market for cradle-to-grave traceability is rapidly expanding as more industries recognise the benefits of being able to trace individual components, tools and products throughout their life cycle. In virtually all industrial sectors the ability to track a component, even after it has been coated in paint or other protective coatings, will allow an even higher level of sophistication and security in what is already a highly managed and monitored process."
Locus uses an advanced, patented ultrasound technology to adapt its reading capabilities automatically to compensate for the varying thickness of the covering layer of paint, dirt or other forms of contamination. Unlike conventional ultrasound technology, Locus is claimed to be unique in that it does not require a fluid coupling medium and operates using only dry coupling with the surface containing the hidden code. The reader's interface also provides options for configurable parameters that can be fine-tuned to optimise the image, including the ability to read codes marked around the circumference of a component. The real-time ultrasound images generated by Locus are decoded using Medusa imaging software developed by Absolute Vision Ltd, a division of Pryor that supplies machine vision systems.
Pryor is able to offer marking systems using a range of techniques including dot peen, milling, drilling, mechanical and laser cut engraving, all of which can be read by Locus, up to a maximum dimension of 30 x 30mm. The Locus handheld reader is powered by Li-ion batteries that can be charged via USB or external cable. It can operate at temperatures from 0-40degC and meets the requirements for IP54 ingress protection against dust and splashing water, making it suitable for some of the harsher manufacturing and field environments.
