the sensor can calculate the distance between itself and the target. Because sensor operation uses sound waves rather than light, ultrasonic sensors provide an effective alternative to optical ...

Proximity sensors that use ultrasonic sound waves calculate distance to an object using the time it takes to receive the echo from an ultrasonic burst. But, similar bursts from other sensors in ...

For [Jianjia Ma]’s QingStation, he decided to build another type of wind sensor: An ultrasonic anemometer ... This might due to a calculation error, or external factors like wind, or disturbed ...