series coil

Three major series: 1, Vol Cold Spring, 2, coil spring, 3, steel spring.

主要有三大系列: 1, 冷卷弹簧, 2, 热卷弹簧, 3, 钢片弹簧.

Simply spin it slowly by hand, and start measuring voltage, starting with one coil, and being certain that the voltage increases with each additional coil which is wired in series.

只需旋转，慢慢的手，并开始测量电压，从一个线圈，被确定的电压增加，每增加线圈是有线系列。

Main products: U-series, L-straight series, R-circular series, FT-series and Trigger coil, etc.

主要产品: U - 型系列 、 L - 型直管系列 、 R - 型环形系列 、 FT - 型异形系列闪光灯管,以及配套的触发线圈等电子产品.

In the end, after analysing the measures of reducing the bounce of the contact terminals and taking the way of series excitation twin coil with closed circuit, which aims at reducing the speed of just close, the experiment has proven the effectiveness of the excitation.

通过对减小触头弹跳措施的分析，采用双线圈串励磁合闸的方式，来降低触头的刚合速度，以达到减小触头弹跳的目的。试验结果证明了这种励磁方式的有效性。

A series of principals of designing coil array with metal stanchion is put forward.

文中也提出了设计金属支柱线圈系的一系列原则.