The Biggest Challenges in Detecting Transparent Objects

Transmission Rate of Transparent Objects
Challenge: Transparent objects have a high degree of transmission, which causes the light emitted by the sensor to pass through objects. This minimal absorption of the light intensity makes detection more difficult for the sensor.
Solution:
Solution:
- Retro-reflex sensors for transparent objects, laser distance sensors ToF and fork sensors enable reliable detection even in fast applications due to their high sensitivity and switching frequency
- Ultrasonic distance sensors and ultrasonic fork sensors for label detection detect the object regardless of transparency or color

Resistance to Contamination
Challenge: Dust and contamination affect sensor reliability in industrial production environments. This results in recurring maintenance intervals and the sensors having to be taught in again.
Solution:
Solution:
- Thanks to the dynamic readjustment of the switching threshold, taught-in retro-reflex sensors for transparent objects and reflex light barriers continuously adapt to varying ambient conditions
- For applications in particularly dusty environments, ultrasonic distance sensors are suitable.

Interference Effects with Irregularly Shaped Objects
Challenge: Irregular shapes and surfaces can cause interference, especially with moving objects with shiny surfaces, curves or edges. This can lead to uncontrolled light reflection and transmission and can impair the sensor system.
Solution:
Solution:
- Retro-reflex sensors for transparent objects are suitable for glossy surfaces due to their single-lens optics
- The sonic cone of ultrasonic distance sensors detects large areas and also reliably detects irregular shapes
Sensor Solutions at a Glance
Wide Range of Applications for All Challenges
Note: Simply click the relevant icon to learn more about the application.
Functional Principles for Detecting Transparent Objects
Principi di funzionamento per il riconoscimento di oggetti semitrasparenti
Download per il riconoscimento di oggetti trasparenti
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