| 摘要 |
A fuel spillage control device and method for using same for qualitatively determining the liquid level inside a fuel tank as it is being filled. The fuel spillage control device includes a microphone for generating an audio signal, an amplifier for amplifying the audio signal and a pair of ear phones for transducing the amplified audio signal. To qualitatively determine the liquid level inside the fuel tank, after a fill hose has been inserted into the fuel tank, an operator lowers the microphone into the fuel tank to a distance above the liquid level, a valve to the fill hose is opened, thereby filling the fuel tank, an audio signal generated by the microphone is amplified and the amplified audio signal is listened to by the operator for changes in pitch.
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