Research and Design of Induction Devices Based on Ultrasonic Sensor and Measurement Circuit Models

This paper proposes an induction device design for result measurement based on the seated forward bend. Starting from this sport, a bracelet-type device is simulated and designed to be worn on the wrist, integrating an ultrasonic sensor. When the wearer does the seated forward bend, the bracelet can sense the positions of fingertips and toes in the horizontal plane, determining the distance between two vertical planes and assessing whether the score meets the standard. This paper proposes methods for data collection and analysis, and provides key procedures by employing CX20106A as the core to construct a basic ultrasonic measurement circuit model.