| 摘要 |
The detector comprises an impulse transmitter (5) for converting the fish-bite signals to impulse signals, a piezeoelectric element (6) converting impulse signals to electric signals, an adjuster for controlling the sensitivity, an amplifier for amplifying the signals from the piezo-electric element (6), an oscillator for generating oscillting signals according to the amplified signals, a piezo- electric vibrator (2) connected to the oscilltor, and an LED connected to oscillator in parallel.
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