An ultrasonic sensor is a device that uses high-frequency sound waves—typically above 20 kHz—to detect the distance to an object or the presence of an object in a given space. It operates by emitting ultrasonic pulses and measuring the time it takes for the echo to return after bouncing off an object. This time-of-flight measurement allows the sensor to accurately calculate distance, ... https://www.marketresearchfuture.com/reports/ultrasonic-sensor-market-7493