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Ultrasonic Tx/Rx Transducers


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These Nicera ultrasonic acoustic sensors come in a pair of transmit and receive sensors. Ultrasonic acoustic detection is popular in sonar range-finding applications such as robotics for object detection and avoidance. One ultrasonic acoustic sensor does the transmission and the other does the reception. This allows it to be possible to both send and receive pings simultaneously. This the major advantage of having a discrete Tx/Rx pair versus having a single transceiver, since you don't have to switch to a listening mode after transmission. This decreases the dead zone for objects which are extremely close due to the switchover time from Tx to Rx and improves the close-range detection.

These sensors come housed in an aluminum casing and are popular in the academic and industrial robotics community in Japan. Here are some basic specs on them:

  • Sound Pressure Level: 122dB @ 40 kHz
  • Resonant Frequency: 40.1 kHz
  • Resonant Impedance: 730 ohms
  • Capacitance: 2110pF @ 1kHz

  • Sensitivity: 57 dB @ 40 kHz
  • Anti-Resonant Frequency: 40.1 kHz
  • Anti-Resonant Impedance: 5320 ohms
  • Capacitance: 2180 pF @ 1kHz

Here are links to the datasheets:

Nicera T4016A1 Ultrasonic Acoustic Transmitter
Nicera T4016A1 Ultrasonic Acoustic Receiver

  • Shipping Weight: 0.007kg

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