【摘要】 采用赛普拉斯PSOC(可编程片上系统)中的CY8C3866AXI-040作为微控制器设计了超声波测距系统。首先介绍超声波测距原理;然后阐述基于CY8C3866AXI-040超声测距系统的硬件设计,着重介绍电源模块、超声波模块、温度补偿模块和显示模块的设计;接着介绍超声波测距系统的软件设计;最后进行测距实验并对实验结果加以分析。实验结果表明,在2.5~500cm的测量范围内,测距的相对误差均在0.2%以内,测量精度较高。更多还原

【Abstract】 This paper uses CY8C3866AXI-040 in the Cypress PSOC(programmable system on chip)as the microcontroller to design ultrasonic distance measurement system.Firstly,this paper introduces the principle of ultrasonic distance measurement.Secondly,it explains the hardware design of ultrasonic distance measurement system based on CY8C3866AXI-040,such as the power supply module,ultrasonic module,temperature compensation module and display module.Then,the software design of ultrasonic distance measurement system is presented.Finally,the distance measurement experiment and experimental results are analyzed.The results show that within 2.5~500cm measuring range,the relative error range is within 0.2%,the system has high measurement precision.更多还原