摘要
超声波检测迅速、方便、计算简单、易于做到实时控制,并且在测量精度方面能达到工农业实用的要求。超声波发生器就是利用超声波的这些优点来对目标进行实时处理的。在此设计的农用超声波发生器可生成1.5~1.8 MHz频率段的超声波,该超声波可用来杀灭水蚤。该超声波发生器利用8051单片机生成2个连续信号,依次经过驱动电路、倍频电路、整波电路、和频电路、选频电路的相关处理后从发射端口发射出去。通过对信号检测模块的检测结果分析可知：发射信号能够达到预定要求。本超声波发生器具有成本低廉、结构简单、操作便易、用途多样化等诸多优点,可以在农业及其相关领域普及使用。
The ultrasonic wave is convenient, simple and easy to control real-timely in examination, which can reach the agricul- ture and industry practical requirement in the aspect of measuring accuracy. Ultrasonic generator can make a real-time processing on a target in the use of these advantages of the ultrasonic wave. The designed agricultural ultrasonic generator can generate 1.5- 1.8 MHz ultrasonic wave, the ultrasound can be used to kill water fleas. The ultrasonic generator generates two consecutive signals in the use of 8051 single chip microcomputer, After the dispose of the driving circuit, frequency multiplier circuit, squaring circuit, sum fre- quency circuit and frequency selection circuit, the waves launch out from the launch port. After the analysis of the signal detection module, the transmit signals reach to the requirement. The ultrasonic generator has advantages of low cost, simple structure, easy operation, diversity of usage and others, it can be used widely in the agriculture and other fields.
出处
《现代电子技术》
2010年第14期175-179,共5页
Modern Electronics Technique
基金
河北省自然科学基金资助项目(E200800098)
关键词
超声波发生器
8051单片机
农业
信号检测模块
ultrasonic generator
8051 single chip microcomputer
agriculture
signal detection module
