摘要
超声导盲镜应用研究李有禹（陕西师范大学教育系，西安７１００６２；作者，男，４７岁，讲师）１工作原理及实验方法超声导盲镜是利用超声波脉冲反射法和超声波回声测距技术来帮助盲人在行走中发现障碍物的设备．它的主要元件安装在眼镜架上，由超声波发射器发出超声波，...
The constract test is used to test the function of the integrated circuit sonicyuide Model LG Ⅱ, The test data show that the sonicguide has a longer range of examination than the stick has. However, the sonicguide is not good at the nearer object. Especially for the hollows on the ground, the rate of exploration is lower.
出处
《陕西师范大学学报（自然科学版）》
CAS
CSCD
北大核心
1997年第2期109-110,共2页
Journal of Shaanxi Normal University：Natural Science Edition
关键词
超声导盲镜
工作原理
实验
ultrasonic
blind
trarelling and orientation
sxamimation rate
