1) number of pole pairs
极对数
2) pole-pairs number
极对数
1.
The expression of torque ripple(induction electromotive force ripple)and tooth-slot number,pole-pairs number for permanent-magnet DC motor is deduced based on basic theory of electromechanics in this thesis,which is utiliy and explicit.
从电机学的基本理论出发,推导出永磁直流电机转矩波动(感应电势纹波)与电机齿槽数、极对数的关系表达式,实用、明了,实验表明,其结论与实验结果相吻合。
2.
The structure and working principle are analyzed,and reasonable magnet thickness and pole-pairs number are evaluated with magnet circuit calculation method and 3 di.
针对电励磁爪极电机效率低、永磁爪极电机磁场调节困难的问题,探讨一种新型串联磁路混合励磁爪极同步发电机,分析其结构及其工作原理,利用磁路计算方法和三维有限元的分析对电机进行了仿真,确定了合理的磁钢厚度和合适的极对数。
3) number of pole-pairs
极对数
1.
Through studying three-phase,two-phase signal model of time-grating sensor,this paper proposes a new type of displacement sensor-two-phase unequal-pitch time-grating displacement sensor,whose feature is that the number of pole-pairs is enhanced,but the difficulty of processing cases does not increase.
该传感器在不增加加工难度的情况下,提高了传感器的极对数。
4) magnetic pole number
磁极对数
1.
According to equivalent current method,the equivalent physical model was constructed to calculate the torque varying with clearance,relative angle and magnetic pole number between driving magnetic gear and driven magnetic gear of blood pump driving system.
采用等效电流法建立了永磁体等效物理模型,计算血泵驱动系统的主动轮和从动轮之间的距离、相对转角以及磁极对数对血泵传动扭矩的影响。
5) pole pair ratio
极对数比
6) ploar-log coordinate mapping
极对数映射
1.
ploar-log coordinate mapping can be used as preprocessor of thecompression system and the Joint Photogrpic Expert Gmup(JPEG) is studied in this pa-per.
本文提出了以极对数映射作预处理器的思想，同时就静态图像压缩标准ＪＰＥＧ作了研究。
补充资料：“质子-电子偶极-偶极”质子弛豫增强
“质子-电子偶极-偶极”质子弛豫增强
物理学术语。原子核外层中不成对的电子质量小，但磁动性很强，可使局部磁场波动增强，促使氢质子弛豫加快，从而使T1和T2缩短，这种效应即为PEDDPRE。过渡元素和镧系元素大部分在d和f轨道有多个不成对电子，所以其离子往往具有PEDDPRE，可用来作顺磁性对比剂，如钆(Gd)。Gd在外层有7个不成对电子，具有很强的顺磁性。
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