基于DSP和FPGA的测井深度处理板的设计

The dsign of the processing board for well loggin depth based on DSP and FPGA

针对石油勘探成像测井系统对深度采集和处理的要求,本文以DSP和FPGA为核心,开发了一种基于CPCI总线的测井深度张力信号采集处理板;FPGA实现深度脉冲的处理及模数转换器的控制,DSP实现深度和张力信号的计算;处理结果通过CPCI总线与系统控制器进行通讯。实践证明,该深度信号处理板工作稳定可靠,深度测量准确,可以满足成像测井系统的要求。

To meet the demands of the data acquisition and processing in imaging well logging system,this article developes a CPCI Bus Processing board based on DSP and FPGA.FPGA is used for dealing with the Encoder Pulse and sequence control in analog data acquisition.DSP collects these data and calculates depth and tension values,which are sent to the system controller by CPCI bus.The application shows that this board runs stably and reliably.The technology and methods adopted in the system are practical.