Colour sensor discriminates better than human eye
March 2006
Sensors & Transducers
The Wenglor colour sensor used to detect and sort coloured objects and liquids in the packaging, paper, printing, chemicals and food processing industries, can also be used for diverse applications such as high-speed, automated mail distribution to sort letters according to colour or in wastewater testing by means of colour temperature analysis.
The Wenglor colour sensor is unique due to its mode of operation. It detects the finest nuances, exceeding the limitations of the human eye. Even in the case of transparent objects, the slightest traces of colour are reliably recognised using a through-beam operating mode. With its integrated white light LED, the Wenglor colour sensor measures the colour components reflected by the object. The device continuously measures colour values, converts them to RGB colour values and compares with the values being used as a reference.
When a narrow discrimination window is selected, reliable differentiation is possible within a small deviation amongst minimal colour nuances - independent of ambient light. When a large window width has been selected, differentiation is only made amongst main colour groups.
The device operates in conjunction with Wenglor software, the RGB colour value read-out via RS232 interface and the reference colour adjustment is performed using an easy Teach-In process. The discrimination window width for colour recognition is individually adjusted in seven steps for each of the three primary colour (RGB) outputs. There is an adjustable on and off-delay.
For more information contact Anastas Schnippenkotter, ASSTech Process Electronics & Instrumentation, 011 794 7057.
Further reading:
Distance sensor for confined spaces
ifm - South Africa
Sensors & Transducers
The O6D100 from ifm has been designed as a powerful all-rounder for typical applications in object detection, distance measurement and positioning.
Read more...
Long-range laser distance measuring sensor
Vepac Electronics
Sensors & Transducers
The MS-100A is a long-range laser distance measuring sensor with a range of 150 to 1000 mm. This sensor excels in applications requiring extended measurement capabilities, such as quality control and logistics.
Read more...
Listening for damage to wind turbines
Sensors & Transducers
The Fraunhofer Institute for Integrated Circuits, working in concert with the Fraunhofer Institute for Wind Energy Systems, has developed a solution that can be used to identify cracks and breakage inside wind turbine blades remotely at an early stage.
Read more...
Verification using Heartbeat Technology is a breeze
Endress+Hauser South Africa
Sensors & Transducers
Heartbeat Technology reflects Endress+Hauser’s long-term commitment to enhancing measurement reliability and efficiency across a growing product portfolio.
Read more...
Enhancing efficiency and reliability in the energy sector
VEGA Controls SA
Sensors & Transducers
VEGA offers practical, reliable solutions through specialised measuring instruments and deep industry know-how, all tailored to help energy companies keep costs under control while meeting strict regulatory standards.
Read more...
Condition monitoring for hydroelectric plants
ifm - South Africa
Sensors & Transducers
The energy company Compagnia Valdostana delle Acque generates electricity in the region’s 32 hydroelectric power plants with a total capacity of over 900 MW. Vibration sensors from ifm monitor the maintenance requirements of the turbines and power generators at all times.
Read more...
Precision sensing for water treatment
ifm - South Africa
Sensors & Transducers
ifm electronic has introduced two next-generation sensors designed for South Africa’s bulk and wastewater sector, engineered to withstand harsh environments and deliver long-term reliability.
Read more...
The next generation of inductive scanning encoder solutions
ATI Systems
Editor's Choice Sensors & Transducers
With the launch of the ECI 1122 and EQI 1134 rotary encoders, positioning specialist, HEIDENHAIN has introduced a new benchmark in inductive scanning technology that raises the bar for motion control and precision automation.
Read more...
Next-generation condition monitoring
Sensors & Transducers
The next generation Sitrans MS200 multisensor from Siemens is setting new standards in condition monitoring.
Read more...
Telco sensors for blocked/empty chute detection
Sensors & Transducers
Telco sensors overcome the problems of contaminated environments through powerful high-performance infrared sensors that ensure penetration of harsh pollution and guarantee reliable detectio
Read more...
printer friendly version