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Design of Ultrasonic Distance-measuring System Using Temperature Compensation Methods

机译:温度补偿方法设计超声波测量系统

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摘要

In this paper, the principle of ultrasonic distance measurement is described, the main error sources of ultrasonic distance measurement are analyzed also.A method of improving precision of ultrasonic distance measurement in air, in which the transmission speed of ultrasonic wave if corrected by measured air temperature and the forward edge of receive wave can be determined accurately by use of the receive wave feedback-time method with the software.Based on the idea,the circuit and software of ultrasonic distance measurement system have been designed to apply DSP technology.Experiment indicates that the measuring precision of ultrasonic distance measurement system is higher and its circuit is simpler.
机译:本文描述了超声波距离测量的原理,分析了超声距离测量的主要误差源。还提高了空气中超声波距离测量精度的方法,其中超声波的传输速度通过测量空气校正通过使用具有软件的接收波反馈时间方法可以精确地确定接收波的温度和前边缘。基于思想,超声波距离测量系统的电路和软件旨在应用DSP技术。实验表明超声波距离测量系统的测量精度越高,其电路更简单。

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