Sonar-on-a-chip provides up to 5 metres ToF range

https://www.electronics-lab.com/sonar-chip-provides-5-metres-tof-range/

Shipping to strategic customers, the CH-201 MEMS-based ultrasonic Time-of-Flight (ToF) sensor offers an extended sensing range of 5 metres. [via] This ToF sensor uses a tiny ultrasonic transducer chip that sends a pulse of ultrasound and then listens for echoes returning from targets in the sensor’s field-of-view. TDK’s MEMS ultrasonic technology leverages a proprietary ToF […]