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SEG-D格式头段中MP值与系统灵敏度关系讨论
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作者 李艳青 陈曦 《工程地球物理学报》 2015年第3期390-394,共5页
在分析了Seg-D标准格式的基础上,得出了反换算系数(MP值)的具体定义,并对行业标准中反换算系数(MP值)在不同的格式版本中的具体存储方式进行了总结。拓展灵敏度这一物理概念的理解,将其看成是采集系统输入与输出之间的传递函数,提出了... 在分析了Seg-D标准格式的基础上,得出了反换算系数(MP值)的具体定义,并对行业标准中反换算系数(MP值)在不同的格式版本中的具体存储方式进行了总结。拓展灵敏度这一物理概念的理解,将其看成是采集系统输入与输出之间的传递函数,提出了系统灵敏度的概念,将采集系统设计的关键参数融合到系统灵敏度中,建立了采集系统设计公式,结合实际的仪器设计建立系统灵敏度与反换算系数(MP值)之间的联系,进而讨论了综合考虑采集系统的前放增益、模数转换芯片量程和数据的存储格式设计MP值的重要性。 展开更多
关键词 反换算系数 系统灵敏度
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A Numerical Method on Inverse Determination of Heat Transfer Coefficient Based on Thermographic Temperature Measurement 被引量:6
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作者 范春利 孙丰瑞 杨立 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2008年第6期901-908,共8页
The heat transfer coefficient in a multidimensional heat conduction problem is obtained from the solution of the inverse heat conduction problem based on the thermographic temperature measurement. The modified one-dim... The heat transfer coefficient in a multidimensional heat conduction problem is obtained from the solution of the inverse heat conduction problem based on the thermographic temperature measurement. The modified one-dimensional correction method (MODCM), along with the finite volume method, is employed for both two- and three-dimensional inverse problems. A series of numerical experiments are conducted in order to verify the effectiveness of the method. In addition, the effect of the temperature measurement error, the ending criterion of the iteration, etc. on the result of the inverse problem is investigated. It is proved that the method is a simple, stable and accurate one that can solve successfully the inverse heat conduction problem. 展开更多
关键词 inverse heat conduction problem heat transfer coefficient finite volume method modified one-dimensional correction method measurement error
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