Sensori ultrasonici | Warner Electric

Ultrasonic signals are like audible sound waves, except the frequencies are much higher.

Ultrasonic transducers have piezoelectric crystals which resonate to a desired frequency and convert electric energy into acoustic energy and vice versa.

Diagram A shows how sound waves transmitted in the shape of a cone are reflected back to the transducer. At this stage, an output signal is produced to perform some kind of indicating or control function.

A minimum distance from the sensor is required to provide a time delay so that the “echoes” can be interpreted. Variables which can affect the operation of an ultra- sonic sensor include: target surface angle, reflective surface roughness, change in temperature or humidity. The targets can have any kind of reflective form and even round objects are an acceptable target.

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Product Features

• Discrete distances to moving objects can be detected and measured
• Less affected by target materials and surfaces
• Not affected by color
• Solid state – virtually unlimited mainte- nance-free life
• Small objects can be detected over longer distances
• Resistance to external disturbances such as vibration, infrared radiation, ambient noise, and EMI radiation
• Analog outputs 0-10V
• Input voltage 17-30VDC
• Range control with teach-in function
• 80" max distance
• Sensing range from 60 to 2000mm

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Warner Electric
449 Gardner St.
South Beloit, IL 61080 - USA
Phone: 1-800-825-6544
Email: [email protected]
www.warnerelectric.com

Warner Electric (France)
7 Rue de Champfleur - CS20095
49182 St-Barthélémy d Anjou
France
Phone: +33 (0)2 41 21 24 24
Email: [email protected]
www.warnerelectric.com