Array Sensor Output Signal Detection System Signal Conditioning Circuit Design
نویسندگان
چکیده
Abstract The signal output by the array sensor is generally very weak, with a large dynamic range and wide of frequencies. In order to solve problem accurate measurement weak signals frequency range, this paper proposes design method sub-band filtering variable gain amplifying circuit based on analog switch, divides into four bands, designs groups second-order voltage control filter, adjust magnification for different signals, only need switch corresponding resistance capacitance realize switching processing circuits which greatly optimizes structure. reduce interference in transmission process, single-ended differential designed transmit processed subsequent acquisition system acquisition. After simulation test, conditioning can effectively improve signal-to-noise ratio detection accuracy.
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ژورنال
عنوان ژورنال: Journal of physics
سال: 2023
ISSN: ['0022-3700', '1747-3721', '0368-3508', '1747-3713']
DOI: https://doi.org/10.1088/1742-6596/2452/1/012033