Project portfolio : Contaminant detection

Working with a UK manufacturer of food packaging and check-weighing systems, WyeTec assisted in the development of a product to automatically detect dense contaminants in food, in particular stones/mud within washed, pre-packed salad products.

Choice of x-ray source

An X-ray monoblock was required that was suitable for continuous operation. Once commissioned the system was intended to run a minimum of 16 hours per day, so tube lifespan (MTBF) and servicing were key considerations. The source also needed to be protected from external environmental factors, such as dirt and moisture, and so a source with remote water-cooling and, of course, appropriate X-ray enegy range was selected. WyeTec provided software classes to control the X-ray source and monitor the associated safety system that could be easily integrated into the machine's control software by the client's in-house software team.

Detection and analysis:

The product under inspection passed continually through the system, and so a linescan X-ray detector was selected for data capture, with WyeTec again providing software services to allow for easy integration into the main product HMI. This included the contaminant detection algorithm, as well control of detector and data capture.

Whilst normal operation of the system was not to require any data visualisation, being able to graph the detector output for set-up and calibration purposes was invaluable. WyeTec developed a stand-alone application that could be used for system set-up, along with tools to calibrate for non-linear response.

WyeTec is the trading name of Wye Valley Associates Ltd; UK Company No. 03758914.
All content copyright Wye Valley Associates Ltd ©2021 except for licenced stock images.

company address
Unit 8
Lime Tree Business Park,
Lime Tree Road, Matlock,
Derbyshire DE4 3EJ
Phone: +44 (0)7950 373139
Copyright © 2021 Wye Valley Associates Ltd, All Rights Reserved