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| 折扣與優(yōu)惠：團(tuán)購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要：超聲波測(cè)距應(yīng)用十分廣泛。論文在分析可行性、可靠性的基礎(chǔ)上，參照工程設(shè)計(jì)方法，確立了結(jié)構(gòu)化設(shè)計(jì)的思路。本文設(shè)計(jì)了一套超聲波檢測(cè)系統(tǒng)，該系統(tǒng)是一種基于STC89C52 單片機(jī)的超聲波測(cè)距系統(tǒng),它根據(jù)超聲波在空氣中傳播的反射原理, 以超聲波傳感器為接口部件, 應(yīng)用單片機(jī)技術(shù)和超聲波在空氣中的時(shí)間差來測(cè)量距離。該系統(tǒng)主要由主控制器模塊、超聲波發(fā)射模塊、超聲波接收模塊和顯示模塊等四個(gè)模塊構(gòu)成。設(shè)計(jì)利用單片機(jī)系統(tǒng)的I/O口，使超聲波傳感器發(fā)出40KHz的超聲波，反射回來的超聲波信號(hào)，經(jīng)過放大和整形電路進(jìn)入單片機(jī)，比較調(diào)試后確定其對(duì)應(yīng)的距離，完成測(cè)距。可實(shí)現(xiàn)3米內(nèi)測(cè)距，盲區(qū)7厘米，具有LCD顯示功能。 關(guān)鍵詞：超聲波；超聲波傳感器；STC89C52單片機(jī)；LCD顯示單元；測(cè)距儀
Abstract: The ultrasonic ranging application is extremely widespread. After the feasibility and reliability has been solved, the structure design technique was established. This article introduces an ultrasonic distance measurement based on the STC89C52 single-chip computer, the system according to ultrasound in the air reflection principles of the dissemination. And it uses the ultrasound sensor as interface components for the application of the distance measure based by single-chip computer technology and the margin of time that ultrasound transmit in air, thereby the systems of design of ultrasonic test comes into being. The system primarily composed by the four modules : the controller module, ultrasonic launch module, ultrasound receiving module and display modular. The I/O ports of the single-chip computer were used to cause the ultrasonic transducer to send out the 40kHz ultrasonic wave. The reflected signal enter the after the enlargement and feedback circuit, and the system will complete the range finder by debugging the corresponding distance. This design can realize 3 meters in range finders, with the 7 centimeters blind spot, the system have the LCD demonstration. Keywords: ultrasonic, ultrasonic sensor, STC89C52 single-chip computer, LCD display unit, range finder
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