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AIRMAR - AT120 Ultrasonic Airducer Transducer
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
Rugged sealed construction
Cylindrical design allows for installation in various applications
Available in PVDF housing for use in chemically aggressive environments
10 KΩ thermistor available for temperature compensation
Weight: 20 g (0.7 oz.)
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
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)
Housing Material: Glass filled polyester
Acoustic Window: Glass reinforced epoxy
*Pulse-Echo Mode. Minimum and maximum ranges are best case scenarios. Actual range may vary, depending on drive circuitry and signal processing.