1) effective detecting depth
有效探测深度
1.
According to the Monte-Carlo simulation, the estimation method for effective detecting depth of OCT system was put forward, and then the effect of tissue optical properties on effective detecting depth was analyzed.
通过对蒙特卡罗仿真结果的统计分析,提出了OCT系统有效探测深度的评估方法,并分析了生物组织的光学特性参数对有效探测深度的影响。
2) depth of investigation
探测深度
1.
Its vertical resolution,depth of investigation and environmental effects including shoulder,invasion.
介绍了高分辨率双侧向的电极系结构、工作原理,并通过数值模拟结果阐述了它的分层能力、探测深度和围岩、侵入及井眼等影响。
2.
1m and depth of investigation is equivalent to Deep LL3.
１ｍ、探测深度与深三侧向相当；可用于确定岩性，扣除储集层中的钙质、泥质夹层，准确地划分有效厚度，是判断水淹层、评价储层参数的较好方法。
3.
,the key parts characteristics of array EWR logging while drilling apparatus were introduced,the selec- tion principle for emission frequency,space length,spacing and other important parameters,and the relations between emission frequency,space length,spacing,coil number, collar structure and apparatus depth of investigation were expounded.
从钻铤结构、发射频率、发射—接收天线间距和天线线圈数量等方面介绍了随钻阵列电磁波电阻率测井仪关键部件的特点,阐述了发射频率、间距、源距等主要参数的选择原则以及发射频率、间距、源距、线圈数量、钻铤结构与仪器探测深度之间的关系。
3) detecting depth
探测深度
1.
A theoretical study on detecting depth and spacing of density logging;
密度测井探测深度与源距的理论研究
2.
It is known that the detecting depth of optical coherence tomography ( OCT) can be enhanced by hyper-osmotic agent.
用高渗制剂可提高光学相干层析成像(OCT)的探测深度。
4) exploration depth
探测深度
1.
The author queries in this paper the theory that the TEMS exploration depth depends on the strength of the loop s magnetic moment(M=IL2),and that under the circumstance of limited field source power,the depth will be effectively controlled by loop area.
质疑瞬变电磁法探测深度取决于场源磁矩(M=IL2)的强度,当电源能量一定时,改变回线边长就成为控制探测深度的有效措施;认为"大回线有大深度"、"小回线探测浅"等共识是不正确的,它是不计条件应用深度公式的误导。
5) Detection depth
探测深度
1.
Four basic problems in the application of Ground penetrtion radar are discussed in this paper:(1) the wave impedance of electromagnetic wave transmission in strata; (2) the reflectivity and transmissivity of electromagnetic field at the subsurface of strata; (3) reflective phase and propagating velocity of electromagnetic wave in strta; (4) detection depth of the Ground penetration radar.
本文讨论了探地雷达 (GPR)应用中的四个基本问题 :( 1)电磁波在地层中传播的波阻抗 ;( 2 )电磁波在地层分界面上场强的反射系数与透射系数 ;( 3)电磁波在地层中的传播速度和反射波相位 ;( 4 )GPR的探测深度。
6) probing depth
探测深度
1.
According to the electric features of North China type coal field,the principle analysis and exploration cases of the electric magnetic probing showed that a largest pole distance,longer observation time and lower frequency would be needed to reach the expected probing depth.
针对华北型煤田地层电性特点,通过电磁探测原理分析与勘察实例,说明了在此类地区需要更大的极距、更长的观测时间和更低的频率才能达到预期的探测深度。
2.
To investigate the effect of different probing depths during cardiac optical mapping,the electrical transmural propagation model,and the fluorescence transport model were adopted to simulate the distribution of transmembrane potentials during the transmural propagation and the fluorescence signals coming form three different optical probing depths.
为了估计心脏光学标测过程中不同探测深度对光标测结果的影响,利用电兴奋跨壁传导模型和荧光传输模型,模拟了心室电兴奋跨壁传播时跨膜电位的分布和不同光探测深度的荧光信号,并将深度权重的荧光信号与组织表层细胞的荧光信号做了比较,并分析了产生差异的原因。
3.
The maximum probing depth is 2000m when the method is used reasonab.
石油地球物理勘探，1997，32（6）：878～883采用单脉冲大功率轻便型瞬变电磁仪，在海南福山凹陷部分地区开展瞬变电磁测深试验取得了初步成果：①摸索到适合于该区的数据采集方法，即采用重叠回线装置、回线边长为400m、发射脉冲电流为100A、供电时间为40ms、采样时间长度为160ms；②采用上述采集方法，探测深度可以达到2000m；③反演的界面起伏形态可与已知井的测深资料相对比，平均深度误差为10％，最小的深度误差仅有2％。
补充资料：探测深度
depth of investigation； 又称“勘探深度。”指电阻率法的探测深度。它取决于如下条件：①被探测地质体本身的因素，如：大小、形状、埋深及与围岩的电阻率差别；②供电电极距(ab)的大小，③观测精度，④地形和不均匀体的干扰；⑤外来电场的干扰。如不考虑后面两个因素，其探测深度主要取决于前三个因素。计算表明，在ab/2深度以下存在无限延展、电阻率又为无穷大的岩层时，它对地面电场的畸变不超过观测误差。所以，ab/2可称为影响深度。实际上，如水平岩层不太厚，且与上下岩层的电阻率差异不大时，需要比ab/2浅很多才能被发现。电阻率法的实际探测深度通常在ab/10—ab/4之间。—般可按ab/6估算。但是，当矿体较小、埋藏较深时，即使无限增加极距也无法探测到。如对良导球体，当球心埋藏深度超过共半径的3一4倍时，无论怎样选择极距也难以探到。对良导水平柱体，当柱心埋藏深度超过其半径的5～6倍时，也难以探到。所以，电阻率法的探测深度，主要取决于被探测地质体本身的各种因素。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条