Ultrasonic Flow Sensor Calibration Using Transit-Time Tube Length Estimation

The patent applies dynamics by making the pulse ping pattern adaptive rather than fixed. The system dynamically adjusts the excitation pattern based on real-time feedback from the received signal, optimizing the balance between manufacturing simplicity and signal quality. This allows the system to maintain ease of manufacture while improving reliability through adaptive signal conditioning.

The patent implements feedback by using the received signal at the piezoelectric sensor to inform subsequent transmission decisions. The system analyzes the received signal characteristics and adjusts the pulse ping pattern accordingly, creating a closed-loop control system that improves signal-to-noise ratio and prevents saturation while maintaining manufacturing simplicity.

The patent applies self-service by enabling the ultrasonic flow sensor to self-calibrate using the flow tube itself as the measurement medium. Instead of requiring external precision measurement equipment during manufacturing, the system uses the flow tube's own acoustic properties to determine its length, eliminating the need for additional manufacturing steps and reducing production costs while maintaining high measurement precision.

The patent replaces mechanical measurement systems with acoustic measurement. Instead of using mechanical calipers or laser measurement equipment during manufacturing to determine flow tube length, the system uses ultrasonic acoustic waves to measure the length acoustically, providing high precision without additional manufacturing equipment or cost.

The flow tube serves itself as both the measurement object and the measurement medium. By using the flow tube's acoustic properties to determine its own length, the system eliminates the need for external measurement devices and complex manufacturing processes, achieving high precision while maintaining manufacturing simplicity.

The flow tube performs multiple functions: it serves as the conduit for fluid flow, the medium for ultrasonic propagation, and the object whose length needs to be measured. This multi-functionality eliminates the need for separate measurement equipment and processes, reducing manufacturing complexity while maintaining measurement precision.