Cylindrical ultrasonic transducer AT120 Airducer®

piezoelectricacousticultrasonic

Airmar’s 125 kHz AT120 ultrasonic air transducer is a critical component in the development of measurement systems for liquid or solid levels, automation control, proximity sensing and obstacle avoidance. AT120’s rugged PVDF housing provides lasting durability on equipment such as asphalt pavers, agricultural machinery, water/wastewater systems, and in chemically aggressive environments. Applications: - Level measurement - Automation control - Proximity - Obstacle avoidance - Robotics Features: - Rugged sealed construction - Cylindrical design allows for installation in various applications Options: - Available in PVDF housing for use in chemically aggressive environments - 10 KΩ thermistor available for temperature compensation Specifications: - Peak Operating Frequency: 125 kHz ±4% - Minimum Transmit Sensitivity: 107 dB re, 1µPa/V at 1 m at best transmit frequency - Minimum Receive Sensitivity: -169 dB re 1V/µPa at best receive frequency/li> - Minimum Parallel Resistance: 420 Ω, ±30% - Minimum and Maximum Sensing Range*: 15 cm to 7 m - Typical Sensing Range: 20 cm to 3 m (8" to 10') - Free Capacitance: 1000 pF ±20% at 1 kHz - Beamwidth: 12° ±2° at -3 dB - Maximum Driving Voltage: 800 Vpp at 2% duty cycle tone burst - Operating Temperature: -40 to 90°C (-40 to 194°F) - Weight: 20 g (0.7 oz.) - Housing: Glass filled polyester - Acoustic Window: Glass reinforced epoxy