APC International, Ltd
APC International, Ltd. is a global manufacturer and supplier of high quality piezoelectric ceram……...

The AR41 Airducer® Transducer from Airmar reliably delivers unparalleled ultrasonic sensing performance with level, flow and distance measurement applications.It incorporates standard internal shielding, and it can accommodate transceiver and signal processing electronics. The AR41 operates at 41 kHz and its sensing range is 30 cm to 20 m.The AR41 Airducer Transducer includes rugged sealed construction, and PVDF housing is available for more chemically aggressive environments.
Applications
Proximity
Level measurement
Avoiding obstacles
Flow measurement
Traffic control
Features
Rugged sealed construction
Housing design accommodates transceiver and signal processing electronics
Normal internal shielding
Options
Full assembly comes with standard cable lengths
Mounting cap comes with BSP, M32or NPT threads
Thermistors of 10 KΩ are considered optional for temperature compensation
Comes with PVDF housing for use in chemically aggressive environments
Specifications
Weight: 560 g (1.2 lb)
Peak operating frequency: 41 kHz
Minimum transmit sensitivity: 110 dB re, 1 µPa/V at 1 m at best transmit frequency
Minimum parallel resistance: 150 Ω
Minimum receive sensitivity: −160 dB re 1 V/µPa at best receive frequency
Minimum and maximum sensing range*: 30 cm to 20 m (1 to 66″)
Free capacitance: 5000 pF at 1 kHz
Typical sensing range: 35 cm to 15 m (14″ to 49″)
Beamwidth: 14° at −3 dB
Maximum driving voltage: 1800 Vpp at 2% duty cycle tone burst
Operating temperature: −40 to 90 °C (−40 to 194 °F)
Acoustic window: Glass-reinforced epoxy
Housing material: Glass-filled polyester
*Pulse-Echo Mode. Maximum and minimum ranges are best-case scenarios. The actual range might differ depending on drive circuitry and signal processing.
Acoustical Data

Image Credit: AIRMAR Technology Corporation
Dimensional Drawings

Image Credit: AIRMAR Technology Corporation
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