Automatic Ultrasonic Field Scanning and Processing System based on LabVIEW

Energy detection before transcranial ultrasound therapy is the core link to ensure safety and therapeutic effect. The ultrasonic sound field scanning system introduced in this paper realizes the automated three-dimensional sound field scanning through hydrophones, a three-axis moving platform and a computer control architecture. The upper computer of the system adopts a hierarchical design: LabVIEW controls the movement of the motor (including linear and planar modules), and MATLAB processes the sound pressure data and generates international standard reports. The automatic testing process is accomplished through three layers. The first layer connects the control program with the front-end user display interface; the second layer realizes the automatic acquisition of voltage signals at each point within the acoustic field through the cyclic switching of states such as triggering acquisition, signal storage, position judgment, and motor drive; the third layer provides independent functional support for the second layer. This achieves low-cost, high-precision, and automated three-dimensional ultrasonic acoustic field scanning, significantly reducing costs while ensuring the accuracy of the test results.