Measuring air speed with a low-power MEMS ultrasonic anemometer via adaptive phase tracking

Indoor air movement affects many functions of buildings, including ventilation and air quality, comfort and health of occupants, fire safety, and building energy use. Accurate measurement of air movement has been difficult and expensive over the extended periods of time, especially for velocities below 1 m/s. A new type of high frequency ultrasonic transceiver provides high sensitivity measurement...