| 1. | Thus it has the following advantages : firstly , the sensitivity distribution of 54 pairs of electrode ( sensitivity distribution of the adjacent pairs is removed ) is smoother than that of 66 pairs of electrode
去掉12个相邻电极对的电容值可以带来以下好处。首先，去掉相邻电极对时电容传感器灵敏场整体较为平滑，这对提高ect整体成像精度带来一定的帮助。 |
| 2. | Thirdly , the removing of the measurement capacitance value of adjacent pair decreases the dimension of the sensitivity distribution matrix from 66 to 54 . the reduction of the dimension could help to improve the speed of image reconstruction
最后，去掉这12电容值后，权重系数矩阵的维数从66减少到54 ，而维数的降低将有效地减少图像重建的计算时间，提高系统实时性能。 |
| 3. | 2 . the design thought of annular fan beam sensor structure is presented , and array laser sensor of 15x5 fan beams structure was developed . the sensor ' s measurement sensitivity distribution and spatial resolution are analyzed and calculated
提出了环形扇束传感器结构的设计思想，并研制了15 5扇束结构的阵列式激光传感器，以及对其测量灵敏度分布和空间分辨率等性能指标进行了分析计算。 |
| 4. | The analytic result derived by studying the vertical directional property shows that , the vertical sensitivity distribution is homogeneous and the fluctuation is 0 db in theory . the fluctuation observed in experiments is less than 0 . 3db , which agrees well with that in theory
垂直指向性分析结果表明,光纤水听器垂直方向的灵敏度分布是均匀的,理论上波动应为0db ,而实验测得的垂直方向的指向性波动小于0 |
| 5. | The larger the absolute value of sensitivity in the location of the disperse phase medium and the size of the disperse phase medium , and the greater the difference of conductivity between the disperse phase and continuous phase medium , the greater the effect of the disperse phase medium on the sensitivity distribution
同时离散相介质所在处灵敏度的绝对值、所占区域、其电导率值与连续相介质的电导率的差值越大，对灵敏场分布的影响也越大。 |
| 6. | The use of the sensitivity distribution of 54 pairs of electrode could help to improve the quality of reconstructed image . secondly , the difference between the measurement capacitance value and the simulation capacitance value was found through investigation . and the difference between the adjacent pair of electrode is more than others
其次，通过比较仿真实验所得的电容数值和实测电容数值，发现两者有差异，且主要体现在由两者相邻电极构成的12个电容上，远高于非相邻电极对构成的其他54个电容。 |
