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SYSTEM, METHOD AND APPARATUS FOR PROVIDING AN IN-LINE BURIED WIRE GUIDANCE AMPLIFIER
SYSTEM, METHOD AND APPARATUS FOR PROVIDING AN IN-LINE BURIED WIRE GUIDANCE AMPLIFIER
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机译:提供直埋式导线指导放大器的系统,方法和装置
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摘要
The present invention provides a filter which is configured to filter frequencies created by noise outside of the band of interest and to then amplify the filtered signal to allow a weaker signal to be used for guidance. According to a first preferred embodiment, the filter of the present invention includes a 5th order active high pass filter cascaded with a 5th order active low pass filter. According to a further preferred embodiment, the filter of the present invention preferably provides a cutoff of frequencies below 700 Hz and above 1500 Hz. According to a further preferred embodiment, the filter of the present invention further uses a voltage amplifying circuit to amplify the filtered signal.
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