| 超声波流量计信号驱动与高速切换电路研究 |
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| 引用本文： | 赵永科,李跃忠,胡开明.超声波流量计信号驱动与高速切换电路研究[J].东华理工大学学报（自然科学版）,2011(2):198-200. |
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| 作者姓名： | 赵永科 李跃忠 胡开明 |
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| 作者单位： | 东华理工大学机械与电子工程学院 |
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| 基金项目： | 东华理工大学校级校长基金项目“超声波流量计中精确测时电路研究”(DHXK1039) |
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| 摘 要： | 基于时差法的液体超声波流量计,采用双低边MOS场效应管驱动器MIC4427形成BTL驱动电路,将微控制器发出的脉冲信号提升峰峰值到30 V,明显提高接收换能器的信号灵敏度和稳定度.由于超声波换能器为发送接收一体型传感器,采用高速模拟开关,让超声波换能器根据需要,在发送传感器和接收传感器之间不停切换,以满足信号测量要求.
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| 关 键 词： | 时差法超声波流量计 双低边MOS场效应管驱动器 高速模拟切换开关 |
Ultrasonic Flowmeter with Signal Driven and High-speed Switching Crcuit Research |
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| ZHAO Yong-Ke,LI Yue-Zhong,HU Kai-Ming.Ultrasonic Flowmeter with Signal Driven and High-speed Switching Crcuit Research[J].Journal of East China Institute of Technology(Natural Science Edition),2011(2):198-200. |
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| Authors: | ZHAO Yong-Ke LI Yue-Zhong HU Kai-Ming |
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| Institution: | (East China Institute of Technology Mechanical and Electronic Institute,Fuzhou,JX 344000,China) |
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| Abstract: | Based on the method of ultrasonic liquid jet flow,low side MOS mosfet drive MIC4427 BTL circuit,forming a pulse signal with micro-controller of ascension to 30V fengfeng value,improved the signal receiving transducer sensitivity and stability.Due to the ultrasonic transducer for sending,receiving a body sensor using high-speed analog switches,ultrasonic transducer,according to the needs,in sending and receiving the sensors on sensor signal switching,in order to satisfy requirement. |
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| Keywords: | transit time ultrasonic flowmeter low side MOS mosfet drive high-speed analog switch |
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