Product category:
Vision and scanning systems
News Release from: Data Translation | Subject: Software Adjustable Lighting Controller
Edited by the Manufacturingtalk Editorial
Team on 12 October 2005
Machine vision controller is software
adjustable
Software adjustable lighting controller for machine vision applications provides very stable RS232 brightness control over ring or linear, single or twin T5 lamps.
Data Translation has developed the DT-VAR-FL Software Adjustable Lighting Controller for use in machine vision applications The controller provides very stable RS232 brightness control over ring or linear, single or twin T5 lamps with combined powers from 4W to 18W
This article was originally published on Manufacturingtalk on 1 Jun 2001 at 8.00am (UK)
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The Software Adjustable Lighting Controller is particularly useful in situations, for example, where a number of differently coloured versions of product are produced and inspected on the same production line.
Being able to change the light output from software means you can easily adjust the light level used for the product under inspection.
Using DT Vision Foundry you can set up an optimised inspection script for each different colour of product and then by simply selecting the correct script the lighting is automatically adjusted to the right level without additional operator intervention.
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Software adjustable lighting can also be used in situations where the light level in the measurement zone is changing.
The intensity of the light can be monitored for a specific region of interest (ROI).
If the light intensity changes then a feedback loop can be used to change the light output from the lamp to maintain it at the required level.
The changing light levels may be caused by environmental factors or simply by changes in the output of light from the tube.
The key features of this new controller are: * Stable low-noise high-frequency ( about 70Hz) operation to eliminate stroboscopic and other problems when used with video cameras.
* Caters for single circular or liner tubes from 4-18W and lengths from 160-600mm.
* Twin tubes from 4-9W connected in series with lengths from 160-600mm.
* RS232 control of brightness over >100:1 range.
* Manual control to set initial brightness and override remote setting, readable via comms port.
* 24V DC operation.
* Operating system is field upgradeable via serial port for custom applications.
Data Translation has successfully implemented the Software Adjustable Lighting Controller in a number of recent systems where varying light output was a potential problem.
In addition to selling the controller as part of turnkey projects Data Translation have had a high level of interest from existing customers.
They would like to incorporate the controller retrospectively into existing machine vision systems, to further increase performance.
* About Data Translation - Data Translation is a leading supplier of software and hardware components for machine vision applications.
In addition we can also provide installation and training services to our customers, so we can take care of the whole project from supplying the components through installing a turnkey system to training your staff to use it.
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