Equipment Upgrade and Curriculum Reform for the Airflow Velocity Measurement Experiment

To enhance the teaching quality of the “Airflow Velocity Measurement Experiment” in the Engineering Testing Technology Experiment course, a vector velocity probe measurement module was developed. Building upon traditional experimental teaching content, a three-dimensional vector wind speed measurement teaching project was introduced. The module consists of a five-hole velocity probe, a high-precision angle adjustment slide, support structural components, and a digital differential pressure gauge. It can accurately simulate vector wind speed fields by presetting pitch angles. The experiment employs the “semi-opposite method” measurement technique to acquire real-time information on both the magnitude and direction of airflow velocity, which is then compared with preset parameters. Teaching practice has demonstrated that this module can accurately reflect the dynamic characteristics and variation patterns of vector airflow velocity, meeting the requirements of experimental teaching. The course is conducted in a progressive “basic—advanced—senior” format, effectively deepening students’ understanding of vector flow concepts and enhancing their practical engineering measurement skills.