Omron launches colour sensor for industrial monitoring

The colour sensor uses a white LED to emit light and receive reflected light according to the colour of detected objects. The colour sensor separates received reflected light into red, green, and blue, then outputs RGB data as voltage values using the I2C interface.

Applications range from monitoring of lubricant deterioration in robot arms and elevators, through drinks dispensers, to object detection on production lines. Omron’s new B5WC promises an innovative solution to these issues. For example, the colour sensor monitors oil deterioration in hydraulic equipment used in industrial machinery - in real time using colours to monitor the condition of the oil. Providing maintenance at optimal timing is vital for manufacturing plants. Minimal production losses within manufacturing sites contribute to carbon neutrality.

Development of sensing technology and optical design technology enables simpler integration into the equipment thanks to compact size, just W:40mm x D:8.4mm x H:15.9mm. Plus, integrating I2C communications into the sensor streamlines embedding in the equipment.

The new sensor helps customers to remotely monitor equipment deterioration in real-time, leading to the visualisation of the equipment and the reduction of person-hours required for inspection and maintenance. It offers solutions to the problems faced by the industrial machinery and hydraulic equipment industries through highly efficient and systematic maintenance.

At manufacturing sites, oil contamination is frequently a cause of failure of industrial machinery and hydraulic equipment. Maintenance personnel are relied upon to conduct a visual check for such contamination, often by performing periodic inspection and part replacement based on their intuition, tricks, and experience. Often production stoppage losses due to sudden equipment breakdown are incurred by inconsistent judgment from each person in charge.

In addition, delays in inspection timing have been a longstanding issue. There is also the increasing need for higher efficiency in maintenance and remote monitoring due to a severe shortage of labour and limited accessibility due to the COVID pandemic. Until recently, size and cost of additional components have stood in the way of solving the problem.

To resolve these issues, the new B5WC sensor can be embedded in the equipment that quantitatively monitors oil deterioration based on colour changes. Based on Omron's innovative sensing technology and optical design, the new product is readily integrated into the equipment thanks to compact size (W:40mm x D:8.4mm x H:15.9mm) and communication method (I2C), which are suitable for embedding in the equipment.

Prior to commercial introduction, the B5WC successfully completed four years of field tests on the "Eco-Rich R" hybrid hydraulic system provided by the Oil Hydraulics Division of Daikin Industries. Future applications are planned for manufacturers of drinks dispensers and object detection, with development on a co-creation basis.