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 ...

Ultrasonic fingerprint sensors are often considered the best biometric ... I'm stuck using either no screen protector or just a film type that only protects against scratches.

[Klaus] wanted some sort of aid for parking his car, and after running across a $4 ultrasonic sensor, decided to build his own speaking distance sensor (.de, Google Translation). Inside [Klaus ...

Hydrogen is a promising clean energy source, but it comes with safety challenges. It is invisible, odorless, and highly flammable, making leaks difficult to detect. To address this, researchers at the ...

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 ...