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http://dx.doi.org/10.5762/KAIS.2012.13.11.5427

A FPGA-based Development of Ultrasonic Level Meter for Measuring Oil Levels of Vehicle Transmissions  

Kang, Moon-Ho (Department of Information and Communication Engineering, Sunmoon University)
Park, Yoon-Chang (Department of Information and Communication Engineering, Sunmoon University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.11, 2012 , pp. 5427-5433 More about this Journal
Abstract
In this paper a ultrasonic level meter for accurately and simply measuring oil levels of vehicle transmission is developed and its effectiveness is shown by experiments. By using a FPGA, all digital signal processes for the oil level calculation is fulfilled, and the programming on a FPGA project IDE enables very short developing time. And besides, analog circuits including a transmit/receive switch, multi-stage active filters and an envelope detect circuit are designed to process low-level ultrasonic echo signal. Under experiments, the designed level meter has proven to have the accuracy of about within 1[mm] scale.
Keywords
Ultrasonic; Oil Level Meter; Vehicle Transmission; FPGA(Field Programmable Gate Array);
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