But a hackier way would be to build a parametric speaker that focuses soundwaves into a narrow beam like [Shane] did with this ultrasonic sound gun. As the directivity of a soundwave depends on ...
For [Jianjia Ma]’s QingStation, he decided to build another type of wind sensor: An ultrasonic anemometer. Ultrasonic anemometers have no moving parts but come at the cost of significantly more ...
The ultrasonic features and the clinical manifestations of the two groups were retrospectively analyzed, with an emphasis on the following parameters: onset age, gender (male/female) ratio ...
Recent research has increasingly focused on ultrasonic measurement techniques, which offer non-destructive and real-time monitoring capabilities, making them ideal for various applications in ...
The ultrasonic technology enables 4-in-1 combined sensor operation. The instrument is suitable in binary gases for medical ventilators, assisting in the global pandemic that has resulted from the ...
Q: Several dogs with unknown owners have been pooping and peeing on my front lawn. Is there some ultrasonic gadget that would keep them away? — Josh Swaney, Conyers ...