关键词: 超声波;六自由度;单片机;三维坐标

Abstract:

In view of the fact that simulation of tooth arrangement needs coordinate information,this article describes a six-degree-of-freedom measurement based on the ultrasonic positioning system principle and design.This system obtains data by measuring 7 times at the 3 points on the three-dimensional coordinate,and processes them in real time with a single-chip microcomputer.Experiment results show that the accuracy of this system meets the actual needs,and is appropriate for manual operation.This system can be easily transferred to other occasions where six-degree-of-freedom parameters are needed.

Key words: ultrasound;six-degree-of-freedom;single chip;three-dimensional coordinate