Sensors for Detecting Transparent Objects
By definition, transparent objects allow light to pass freely through them, which is a primary reason why they can be so difficult to detect. Material color, shape, size, faceting, and reflectivity can further complicate detection. Additionally, the harsh, hazardous, washdown and aseptic environments common to many applications challenge the reliability, performance, and longevity of the sensors used to detect transparent materials.
Matching the design, sensing technology, and product features of a sensor to the specific needs of an application makes for a more effective solution. Some sensing technologies may work better in specific conditions or may be more effective with certain materials. Design and feature considerations for sensors used in hygienic environments may be quite different from those of sensors used in packaging applications. Fortunately, Banner Engineering offers sensors designed and developed to overcome these challenges and reliably solve a broad range of clear object detection applications.
Laser Based Photoelectric Sensors
The Q4X dual-mode laser sensor is capable of detecting very slight changes in distance and reflected light from a stable background condition. As an object enters the sensing beam it alters the perceived distance to and light intensity from the background condition, ensuring reliable object detection regardless of the material, size, shape, tint, faceting, contour, or opacity.
Q4X Laser Distance Sensor
LED Based Photoelectric Sensors
Banner Engineering's LED-based photoelectric sensors for clear object detection utilize coaxial optical design. This technology enables higher positional accuracy, making them a good choice for leading edge detection, counting, and other precision applications. They are highly resistant to false detection from reflected light and have a short dead zone, so they will perform reliably in tight spaces.
Ultrasonic sensors use sound waves to detect objects, making them immune to target color, reflectivity, and transparency. They are unaffected by area light conditions and perform well in dirty as well as wet environments. Opposed mode versions, like the M25U, are well suited for applications requiring faster response times and greater levels of precision than typically associated with ultrasonic sensors. View all Ultrasonic Sensors.
Resources for Selecting the Right Product
Watch these product videos for a quick understanding of their unique features for clear object detection applications.
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