数显式向心力定量探究仪研制

Design and fabrication of a digital instrument for quantitative investigation of centripetal force

针对现有中学物理教材中手摇式向心力实验装置存在的测量精度和重复性差等不足,利用现代传感技术和数显仪表对原有实验仪器进行改进,自制了数显式向心力定量探究仪.该装置具有设计巧妙、测量精确、操作简单等优点,通过控制变量法可以定量地探究向心力大小公式,有助于学生深入理解圆周运动的物理原理.

To address the limitations of centripetal force experimental devices commonly found in middle school physics textbooks,i.e.poor measurement accuracy and repeatability,a self-designed digital centripetal force quantitative exploration instrument was presented through the improvement of the original apparatus based on the modern sensing technology and digital display instruments.Featuring a well-designed structure,high measurement accuracy,and user-friendly operation,this device enabled students to accurately investigate the centripetal force formula through the controlled variable method,fostering a more intuitive and in-depth understanding of circular motion principles.