This design's hardware consists of minimum system circuit in MCU AT89C52, AD convert circuit, LCD display circuit, the monitor and control circuit of current voltages.
控制器由AT89C52单片机，AD转换电路，LCD显示电路，电流电压采集电路以及控制电路等组成。
Hardware design for AD transforming and LCD interface.
AD转换电路和LCD接口的硬件设计。
Cholesterics or ferroelectrics are not necessary to make a bistable LCD, and using conventional nematics offers some substantial AD vantages.
胆甾相和铁电相液晶对于制备双稳态lcd不是必需的，而采用传统的向列相液晶却有某些显著的优势。
Main finished work include: AD conversion, over-sampling, filtering, FFT transform, Quinn and Rife-Jane algorithm, graphic, frequency spectrum and the result of measuring displayed on LCD.
所完成的工作有：AD转换、过采样、滤波处理、FFT变换、Quinn和Rife - Jane算法、液晶显示图形、频谱和测量的结果。
Main finished work include: AD conversion, over-sampling, filtering, FFT transform, Quinn and Rife-Jane algorithm, graphic, frequency spectrum and the result of measuring displayed on LCD.
所完成的工作有：AD转换、过采样、滤波处理、FFT变换、Quinn和Rife - Jane算法、液晶显示图形、频谱和测量的结果。
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