Detection of polyethylene terephthalate (PET) bottles, even those with thin walls and complex shapes, is easy now with the new E3ZM-B sensors from Omron Electronics. Combining innovative feedback and sensing technologies, the new retro-reflective sensors are easy to set up, and operate reliably without the need for regular adjustment, even in areas where dust and other contaminants are present.
Ordinary photosensors depend on changes in light intensity for target detection, but with PET bottles the changes are quite small. This makes the sensors hard to set up and they are prone to drift out of adjustment. However, the P-opaquing technology of the Omron sensors measures the polarisation of the light beam, which typically changes by 75% when a PET bottle enters the beam. This makes the new sensors easy to set up and no further adjustment or trials with sample bottles are needed.
The E3ZM-B sensors continually monitor and adjust the intensity of the light beam using feedback. This ensures stable operation, even in the presence of dust and vapours or if the sensor lenses become dirty.
Contact: Omron Electronics; Tel: 0870 752 0861