TY - GEN
T1 - On the Use of 3D-printed Ultrasonic Horns to Tune the Frequency Response of Airborne MEMS Transducers
AU - Bosetti, Gabriele
AU - Hofstetter-Spona, Stefan
AU - Schrag, Gabriele
N1 - Publisher Copyright:
© 2023 IEEJ.
PY - 2023
Y1 - 2023
N2 - This paper shows how mm-sized 3D-printed ultrasonic horns can be employed to tune the frequency response of airborne MEMS ultrasonic transducers. We present a system integration approach, which we conceptualized with the help of a physics-based compact model for the prediction of the full-system behavior. Simulation results are compared to dynamic optical measurements for three exemplary horn geometries of same length. We demonstrate how small differences in the mouth size of the ultrasonic horn influence substantially the frequency response of a membrane-based piezoelectric transducer operated in transmitting mode, that is the position and peak height of its resonant frequencies. This work lays the foundation for the development of airborne ultrasonic transceivers with tailored acoustic characteristics by means of properly designed ultrasonic horns of dedicated shape and length.
AB - This paper shows how mm-sized 3D-printed ultrasonic horns can be employed to tune the frequency response of airborne MEMS ultrasonic transducers. We present a system integration approach, which we conceptualized with the help of a physics-based compact model for the prediction of the full-system behavior. Simulation results are compared to dynamic optical measurements for three exemplary horn geometries of same length. We demonstrate how small differences in the mouth size of the ultrasonic horn influence substantially the frequency response of a membrane-based piezoelectric transducer operated in transmitting mode, that is the position and peak height of its resonant frequencies. This work lays the foundation for the development of airborne ultrasonic transceivers with tailored acoustic characteristics by means of properly designed ultrasonic horns of dedicated shape and length.
KW - Airborne Ultrasound Transducers
KW - Compact Modeling
KW - Tailored Frequency Response
KW - Ultrasonic Horns
UR - http://www.scopus.com/inward/record.url?scp=85186676098&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85186676098
T3 - 2023 22nd International Conference on Solid-State Sensors, Actuators and Microsystems, Transducers 2023
SP - 873
EP - 876
BT - 2023 22nd International Conference on Solid-State Sensors, Actuators and Microsystems, Transducers 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 22nd International Conference on Solid-State Sensors, Actuators and Microsystems, Transducers 2023
Y2 - 25 June 2023 through 29 June 2023
ER -