A Single Ultrasonic Transducer Fast and Robust Short-Range Distance Measurement Method

  • Daniel Lagler (Speaker)

Activity: Talk or presentation › Poster presentation › science-to-science

Description

Capacitive micromachined ultrasonic transducers (CMUTs) enable the design of small and low-cost proximity sensors for application areas such as embedded systems. Precise short-range distance measurements are achieved via time-of flight (TOF) estimation based on the transmission of frequency modulated signals and pulse compression on the received echo. In single CMUT transceiver designs, the lower limit of the detection range is constrained by the transmit pulse width and membrane ringing, resulting in a blanking zone where no echo signal can be detected. This contribution describes a low complexity method based on customized transmit pulses and partial ringing removal to reduce the minimum detectable range down to 3 cm, while maintaining high precision at larger distances of up to 30 cm.
Period09 Oct 2019
Event titleIEEE International Ultrasonics Symposium 2019
Event typeConference
LocationUnited KingdomShow on map

Fields of science

  • 202017 Embedded systems
  • 202028 Microelectronics
  • 202027 Mechatronics
  • 202015 Electronics
  • 202037 Signal processing
  • 202036 Sensor systems
  • 202025 Power electronics
  • 202 Electrical Engineering, Electronics, Information Engineering
  • 202023 Integrated circuits
  • 202034 Control engineering
  • 202022 Information technology
  • 202030 Communication engineering
  • 202041 Computer engineering
  • 202040 Transmission technology

JKU Focus areas

  • Digital Transformation

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