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Detection of Transparent Objects

The detection of transparent objects can often be a real challenge due to their light transmission. Different technologies may work better under certain conditions or may prove more effective for specific materials. An overview of possible sensor solutions is provided here.

The Biggest Challenges in Detecting Transparent Objects

Contenitori in vetro trasparente in farmacia

Grado di trasmissione di oggetti trasparenti

Sfida: gli oggetti trasparenti hanno un elevato grado di trasmissione, per cui la luce emessa dal sensore attraversa gli oggetti. Questa lieve attenuazione dell’intensità luminosa rende difficile il rilevamento da parte del sensore.

Soluzione:
Bottiglie imbottigliate nel birrificio

Sensibilità allo sporco

Sfida: in ambienti di produzione industriali l’affidabilità dei sensori è compromessa da polvere e sporco. Ne risultano intervalli di manutenzione ricorrenti e una nuova inizializzazione dei sensori.

Soluzione: 
Fiale mediche in uno stabilimento farmaceutico

Effetti di disturbo di oggetti di forma irregolare

Sfida: le forme e le superfici irregolari possono causare interferenze, in particolare con oggetti in movimento con superfici lucide, arrotondamenti o bordi. Ciò può causare una riflessione e una trasmissione della luce incontrollate e compromettere i sensori.

Soluzione: 
Scoprite il nostro portafoglio di catarifrangenti, tra cui quelli con microstruttura consigliata per il riconoscimento di oggetti trasparenti!

Panoramica delle soluzioni con sensori

Il sensore a ultrasuoni invia onde sonore

Sensori a ultrasuoni

I sensori a ultrasuoni utilizzano onde sonore ad alta frequenza. Determinano l’intervallo di tempo tra il segnale di trasmissione e il segnale di ricezione di impulsi ad ultrasuoni per calcolare la distanza dall’oggetto di destinazione. Grazie alla riflessione del suono indipendente dal colore, sono in grado di garantire la rilevazione oggetti da scuri a trasparenti. Ciò le rende versatili, in particolare per le applicazioni che richiedono un preciso riconoscimento dell’oggetto.

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

Functional principle Benefits Products
Ultrasonic distance sensors Ultrasonic distance sensors
  • Adjustable sonic cone width for detecting transparent objects with complex shapes
  • Material and color independent
  • Resistant to contamination
Ultrasonic fork sensor for label detection Ultrasonic fork sensor for label detection
  • The emitter and receiver are in the same housing
  • Material and color independent
  • Resistant to contamination
Retro-reflex sensors for transparent objects Retro-reflex sensors for transparent objects
  • Reliable detection of transparent objects 
  • Reliable process thanks to dynamic readjustment of the switching threshold
Fork sensors Fork sensors
  • The emitter and receiver are in the same housing
  • Reliable detection of even the smallest objects and clear glass
  • Ideally aligned transmitter-receiver axis at the factory
Through-beam sensor for PET selection Through-beam sensor for PET selection
  • Distinguishing clear PET from other transparent materials and opaque objects
  • Two switching outputs for outputting the relevant switching states

Functional Principles for Detecting Semi-Transparent Objects

Functional principle Benefits Products
Reflex light barriers Reflex light barriers
  • Saves time and costs during installation as no reflector is required
  • Enables applications where reflector mounting is not possible for process-related reasons
  • Reliable process thanks to dynamic readjustment of the switching threshold
Laser distance sensors time-of-flight Laser distance sensors ToF
  • For applications with a large working range
  • Precise edge and object detection using a compact laser light spot
  • Bright laser light spot for simplified alignment and initial start-up
  • Saves time and costs during installation as no reflector is required
Fiber-optic sensors
  • Flexible adaptation through combination with different fiber-optic cables
  • Independent of batch change due to jump detection
  • Reliable process thanks to dynamic readjustment of the switching threshold
  • Easy adjustment via NFC and display

Downloads for Transparent Object Detection

Ultrasonic Sensors Product Flyer
Ultrasonic Sensors Product Flyer (995 KB)

This document contains the product flyer for the ultrasonic sensors.

der wintec. Brochure
der wintec. Brochure (1 MB)

This document contains the brochure on long-range laser distance sensors with wintec (wenglor interference-free technology).

PNG//smart Product Flyer
PNG//smart Product Flyer (961 KB)

This document contains the PNG//smart sensors product flyer. Photoelectronic Next Generation stands for a new age of smart photoelectronic sensors.

P1XD Product Flyer
P1XD Product Flyer (902 KB)

This document provides an overview of the P1XD series fiber-optic amplifiers.

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