V2X communication improves road safety by enabling cars to share critical information about speed, direction, and hazards.

We present an ultrasonic transit-time gas flow meter (UFM) that features a 40-kHz 8×8 2D-phased array for transmitting ultrasonic sound waves up- and downstream to two single element receivers. This ...

Two-dimensional flexural ultrasonic phased arrays have been designed and fabricated for a gas flow meter to compensate for the sound beam drift effect. Inconsistent performances are found in the array ...