声波测井模拟电路老化及检测系统研制

Development of an Aging and Testing System for Analog Circuit of Acoustic Logging Tools

摘要:

为提高阵列化声波测井仪器的可靠性，研制了声波测井仪模拟电路老化及检测系统。该检测系统的硬件以PXI系统为硬件平台，扩展相关的辅助专用硬件实现。基于LabVIEW平台，开发了控制及数据处理软件，实现了声波测井模拟电路的全自动老化和在线检测。在数据处理过程中以数字相敏检波算法代替拟合算法来计算失真度，简化了计算复杂度，提高了计算的准确性。该检测系统具有良好的稳定性和可扩展性，极大提高了阵列化声波测井仪器模拟电路老化和检测到效率，为新型高端声波测井仪器和现行声波测井仪器的可靠性提供了保障。

Abstract:

To improve the reliability of array sonic logging instrument, an aging and testing system for the analog circuit of acoustic logging tools is developed. The hardware of the aging and testing system composes of PXI system and relevant auxiliary dedicated hardware. Based on LabVIEW platform, the control and data processing software are developed to realize automatic aging and online testing for the analog circuit of acoustic logging tools. In the data processing, digital phase sensitive detection algorithm instead of a fitting method to calculate the distortion, this simplifies the computational complexity and improves the precision of the calculation. The aging and testing system features good stability and scalability, and greatly improves the efficiency of aging and testing process. It guarantees the reliability of the new high-end acoustic logging tools and the existing array acoustic logging tools.