高精度模数转换器在压力信号采集系统中的应用

Application of high-precision A/D converter in a signal acquisition system

本文设计的压力信号采集系统采用了高精度24位的模数转换器ADS1255。如何使用这种高性能的模数转换器,本文给出了硬件和软件设计方法并作了详细的说明。本文使用的模数转换器硬件精度高,接口简单,通用性强。使用这种高精度模数转换器的压力信号采集系统稳定可靠,已通过了井下试验的测试,满足采集井底压力信号的要求。

This pressure signal acquisition system uses a high-precision 24-bit ADC ADS1255.ADS1255 ADC sampling of high precision,fast conversion speed,easy interface,with programmable gain amplifiers and programmable digital filter,is a high performance ADC.How to use this high-performance ADC,this paper presents hardware and software design methods as well as detailed instructions.The hardware interface is simple and the system isreusable.The pressure signal acquisition system is reliable,has passed the test underground tests,completely meets the requirements.