CORDIC algorithm-based capacitive micro-accelerometer signal detection device
A technology of signal detection and accelerometer, applied in speed/acceleration/shock measurement, measuring device, measuring acceleration, etc., can solve problems such as low stability, high power consumption, high cost, etc., achieve high common mode rejection ratio, enhance Consistency, the effect of saving internal resources
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[0020] figure 1 As shown, the capacitive micro-accelerometer signal detection device based on the CORDIC algorithm includes a capacitive micro-acceleration sensor 1, a charge amplification module 2, an analog-to-digital converter 3, a field programmable gate array 4, a first digital-to-analog converter 5, an analog bandpass Filter 6, second digital-to-analog converter 7; capacitive micro-acceleration sensor 1 and charge amplification module 2, analog-to-digital converter 3, field programmable gate array 4, first digital-to-analog converter 5, analog band-pass filter 6 Connected in turn, the field programmable gate array 4 is connected with the second digital-to-analog converter 7; the acceleration analog signal output by the capacitive micro-acceleration sensor 1 is amplified by the charge amplification module 2, and then converted into a digital signal by the analog-to-digital converter 3 After entering the field programmable gate array 4, the field programmable gate array 4 ...
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