Air Ultrasonic Ceramic Transducers 400EP18D
Features
  • Waterproof and dust-proof
  • Asymmetric beam patterns
  • Excellent temperature and humidity durability
  • Temperature compensated
  • Applications
  • Echo ranging
  • Robotics
  • Car reversing system
  • Energy saving equipments
  • Specification
    400EP18D Transceiver
    Center Frequency 40.0±1.0KHz
    Bandwidth(-6dB) 2.0KHz
    Transmitting Sound Pressure Level
    at resonant frequency; 0dB re 0.0002µbar per 10Vrms at 30cm
    100dB min. (transducer alone)
    Receiving Sensitivity
    at resonant frequency; 0dB=1 volt/µbar
    -80dB min. (transducer alone)
    Nominal Impedance (Ohm) 1000
    Ringing (ms) 1.2 max.
    Capacitance at 1KHz ± 20%@25°C
    Temperature compensated type
    1800 pF
    3600 pF
    Max.Driving Voltage 100Vp-p @20 bursts, 25 ms repetition rate
    Total Beam Angle -6dB 135° typical (Wide)
    75° typical (Narrow)
    Operation Temperature -40 to 70° C
    Storage Temperature -40 to 80° C
    All specification taken typical at 25°C; closer frequency tolerance can be supplied upon request.
    Model available
    1. 400EP18D Black Painted Housing
    2. 400EP18DC Temperature compensated type
    3. 400EP18DCR Temperature compensated type with Rubber Sleeve