Rating: 0.00 / 5 
Ultrasonic Circuits / Audio Circuits
This ultrasonic transmit/receive circuit operates at 40 kHz.
Ultrasonic-transceiver - schematic

Control resistor R5 adjusts the frequency for best performance with the transducers used.


  • Digital Journal
    Seed Invention Will Literally Transform Mixed Signal Analog for the $14.9B U.S. Sensor MarketSpeaking from the company's Ottawa office, Mr. Waite said that Seed's building block will dramatically enhance the performance of all current and
     20 April 2016
  • IEEE Spectrum
    IEEE Spectrum Cars: BMW 7 SeriesThe Wi-Fi–connected tablet manages just about everything, including a Bowers & Wilkins system with 1,400 watts and 16 speakers, and a panoramic roof with 15,000 LEDs forming a starlight pattern.
     29 March 2016
  • IEEE Spectrum
    IEEE Spectrum It is more challenging than the speech recognition that are common today. That's because the mouth assumes between 10 and 14 shapes, called visemes, while speech has 50 different sounds called phonemes. So the same viseme can c
     24 March 2016
  • IEEE Spectrum
    IEEE Spectrum The puck also carries a microphone so the drone can pick up as it's buzzing around recording video. The Lily flying camera itself is still a work in progress. The prototypes I saw were 3-D printed, and carried low-res cameras;
     24 March 2016
  • IEEE Spectrum
    IEEE Spectrum ... developed Autodietary, a necklace-like gadget that attempts to tell what you're eating. The device senses sounds from your neck to categorize your meal. It then digitizes and segments the data and sends it to a smartphone v
     22 March 2016
  • The Verge
    The Verge But those were just demos, R&D projects which so far haven't been made commercially available. That all changes today with ... It now has two cameras and two sensors on its belly, twice what the last version had. DJI says that
     1 March 2016
  • IEEE Spectrum
    IEEE Spectrum Recently I was listening to a talk—ostensibly about the future—in which the smartphone was pictured as an evolutionary end point that would last indefinitely. I thought, Nothing is forever, and forever comes very qui
     29 February 2016
  • IEEE Spectrum
    As the Apple and FBI standoff continues, I asked Rick Mislan, a mobile device security expert who has worked with law enforcement agencies around the country and written for IEEE Spectrum on the topic (see “Cell Phone Crime Solvers”,
     22 February 2016
  • IEEE Spectrum
    IEEE Spectrum Nearly 20 years ago, ESPN, the sports oadcasting network, began displaying a yellow virtual first down line when oadcasting football games on television. Developed by Sportvision, a small Silicon Valley company, that yellow line
     30 January 2016


Leave Comment

characters left: