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System for measuring level and distinguishing kind of mixed liquid and method for measuring level and distinguishing kind of mixed liquid using thereof
System for measuring level and distinguishing kind of mixed liquid and method for measuring level and distinguishing kind of mixed liquid using thereof
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机译:液位和混合液种类的判别系统及使用该系统的液位和鉴别种类的方法
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摘要
PURPOSE: A system and a method for measuring a level of mixed liquid and determining a sort of mixed liquid are provided to determine that liquid contained in a reservoir is whether mixed liquid or pure liquid by using a ratio of capacitance. CONSTITUTION: A system includes a sensor module(1) having a specific gravity stick(20), a sensor section(15) surrounding the specific gravity stick(20), and a temperature sensor(10) installed at a lower portion of the sensor section(15). Signals are transmitted from the temperature sensor(10) and the sensor section(15) to a signal pre-processing section(30). A multiplexer(40) is provided to multiplex signals of the temperature sensor(10) and the sensor section(15). Capacitance ratio and capacitance variation value are stored in a memory(70). A microprocessor(60) is provided to determine a sort of mixed liquid. Information of mixed liquid is displayed in a display/alarm section(80). A communication section(90) is provided to transmit information of mixed liquid to an external device.
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