本项目为一便携式超声测距仪的初步设计。本超声测距仪测距的基本原理是渡越

本项目为一便携式超声测距仪的初步设计。本超声测距仪测距的基本原理是渡越时间法。超声发射模块设计了一个15V/5V可切换的双电源供电的CD4069推挽电路，能够调节超声发射功率，以实现减小盲区、增大量程的作用。超声接收模块使用了CX20106A集成芯片构成接收电路，在满足功能的同时减小了测距仪的体积。为了提高测量精度，本设计中使用DS18B20温度传感器对声速进行温度矫正的同时，还引入了一个校准参数，可以对测得的渡越时间进行手动校准。LCD显示屏能够显示功能菜单以及实时测得的距离值和温度值。报警模块会在测距超过量程时给予使用者提醒。同时，本项目还基于C语言设计了与硬件相配套的软件程序，进行了原理图和印刷电路板的绘制。经实验验证，本超声测距仪的各项测量指标均满足任务要求。该超声测距仪具有一定的实用性和推广价值。

結果 (英文) 1:

This project is a preliminary design of the portable instrument for ultrasonic distance measurement. This ultrasonic distance meter range is the basic principle of transit-time method. Ultrasonic transmitter designed a 15V/5V switchable dual supply CD4069, a push-pull circuit can adjust ultrasonic transmitting power to achieve reduced blind spots, increases the range of roles. Ultrasound-receiver module using CX20106A integrated chip receiver, while function decreases the volume of the rangefinder. In order to improve the measurement accuracy, this design using the DS18B20 temperature sensor temperature sound velocity correction at the same time, also introduced a calibration parameters, can be to manually calibrate the measurement of transit time. LCD display is capable of displaying menus and real-time measurements of distance and temperature value. Alarm module location exceeds the range to use reminder. Meanwhile, the project is also based on the c language was designed with hardware support of the software program for drawing schematics and printed circuit board. Experiments, ultrasonic distance meter the measurement indicators are to meet mission requirements. The ultrasonic distance meter has a certain degree of practicality and value.

結果 (英文) 2:

This project is a portable ultrasonic rangefinder preliminary design. The basic principles of the ultrasonic rangefinder ranging is the transit time method. Ultrasonic transmitter module designed a 15V / 5V switchable power supply CD4069 dual push-pull circuit, it is possible to adjust the ultrasonic transmitter power to achieve reduce blind spots, increasing the range of effect. Ultrasonic receiver module uses CX20106A integrated circuit chip forms the reception, meet function while reducing the volume of the rangefinder. In order to improve the measurement accuracy, the design used in the DS18B20 temperature sensor for temperature correction of the speed of sound, while also introducing a calibration parameter can be measured transit time of manual calibration. LCD screen can display the menu as well as the distance and temperature values ​​measured in real time. Alarm module will give the user a reminder at the distance over the range. At the same time, the project is also based on the C language hardware design and supporting software programs were drawn schematic and printed circuit boards. The experiments prove that the measure of the ultrasonic range finder can meet mission requirements. The ultrasonic range finder has a certain practicality and promotional value.

結果 (英文) 3:

This project is a portable ultrasonic distance measuring instrument. The basic principle of the distance measurement of the ultrasonic range finder is transit time method. Ultrasonic emission module design the CD4069 push-pull circuit of double power supply of a 15V/5V switchable, can regulate the ultrasonic emission power, to achieve to reduce blind spots, increasing the range. The ultrasonic receiving module uses the CX20106A integrated chip to form the receiving circuit, and simultaneously reduces the volume of the distance measuring instrument while satisfying the function. In order to improve the measurement accuracy, this design uses the DS18B20 temperature sensor for temperature correction of sound velocity, but also introduces a calibration parameter, which can be used to calibrate the transit time. The LCD display can display the function menu as well as the real time measured distance value and the temperature value. Alarm module will be given to the user when ranging over range. At the same time, the project is based on the C language design and hardware supporting software program, the schematic and printed circuit board drawing. The experimental results show that the measurement parameters of the ultrasonic distance measuring instrument can meet the requirements of the task. The ultrasonic distance measuring instrument has certain practicality and popularization value.