300K Multi-paper detection

The 300 kHz Multi-Paper Detection Transducer is a high-frequency ultrasonic sensor designed to detect whether multiple sheets of paper are being fed simultaneously in machines such as printers, scanners, copiers, mailing systems, or banknote sorters.

Operating at 300 kHz, this transducer provides higher resolution and greater sensitivity compared to lower-frequency counterparts, making it ideal for detecting thin paper types or slight overlaps. It works by transmitting an ultrasonic wave through the paper path and analyzing how much sound is attenuated:

• A single sheet allows a consistent level of transmission.

• Multiple sheets increase the acoustic attenuation, triggering detection.

🔸 Key Features

• Frequency: 300 kHz – optimized for thin paper and high precision

• Non-contact sensing – no mechanical wear, long lifespan

• Compact and fast – suitable for high-speed paper handling systems

• Insensitive to color, print, or transparency

🔸 Applications

• 🖨️ Printers and Scanners – avoid paper jams or double feeds

• 🏦 Banknote Counters and ATMs – ensure single-sheet accuracy

• 📦 Mailing and Packaging Equipment – detect label or envelope overlap

• 🏢 Document Management Systems – maintain document integrity