最近磁环天线挺火的,我也很感兴趣,找了很多资料,不知道有没有童鞋感兴趣,老外还有很有想法的,不懂英文用机器翻译的,高手就bs我吧!!
怎么在文中插入图片啊 高手门指导下
论坛不要插入图片 移步查看
http://ham.hellocq.com/viewthread.php?tid=186454-------------------------------------------------------------------------
100 watts small magnetic loop antenna
100瓦小磁环路天线
this small magnetic loop antenna was designed for installation on the top of the roof and remotely tuned by a small geared dc motor coupled to the variable air capacitor shaft.
这个小的磁回路天线是专为安装在屋顶上，由一个小齿轮直流耦合可变空气电容器轴电机进行远程调整。
the motor is controlled by a pwm circuit that precisely sends dc voltage on a train of pulses for fine tuning the antenna to the resonance point.
电机控制，精确发送的脉冲微调天线的共振点的火车上的直流电压由pwm电路。
the antenna is made with 2.80 centimeters of cell flex cable shorting the inner conductor with the outer copper foil.
天线是2.80厘米的细胞柔性电缆内导体与外铜箔短路。
the antenna is covering from 12 mhz to 32 mhz with a 8 pf to 80 pf wide spaced variable capacitor.
天线覆盖从12兆赫至32兆赫8 pf到80 pf宽间距可变电容器。
the small loop is made on 56 centimeters of rg213 coaxial cable shorting the inner conductor with the outer coaxial braid.
小环是由56厘米rg213同轴短路电缆内导体外同轴电缆编织。
the 100 watts capability was possible by the use of a high isolation variable capacitor.
高隔离可变电容器的使用100瓦的能力是可能的。
one of the great issues to design this antenna was select the ideal enclosure to protect the capacitor and the motor against the rain, sun and moisture.
设计这种天线的重大问题之一是选择理想的外壳，对雨水，阳光和水分，以保护电容和电机。
a damaged outdoor infrared sensor activated security lamp was the perfect and elegant solution to accommodate the variable capacitor and the geared motor.
损坏的室外红外传感器激活安全灯的完美和优雅的解决方案，以适应可变电容器和减速电机。
variable capacitor soldering joints made with rg213 coaxial braid.
可变电容器的焊点与rg213同轴电缆编织的连接。
inner loop made with 56 centimeters of rg213 coaxial cable.
内环使用56厘米的rg213同轴电缆。
final antenna tests before installation on the top of the building
.最终天线安装在建筑物顶部前的测试。
silicone rubber sealant applied on the plastic cabinet junctions.
用硅橡胶密封接口。
100 watts magnetic loop installed with no holes on the structure.
100瓦的磁回路安装无孔结构。
no holes fixing with waterproof wood and 50 cms.
无固定防水木材和50厘米的洞。 plastic ties.塑料关系。
pwm motor speed control. pwm电机调速。
the motor is controlled by a pwm circuit that precisely sends dc voltage on a train of pulses for fine tuning the antenna to the resonance point.
电机控制，精确发送的脉冲微调天线的共振点的火车上的直流电压由pwm电路。
the pwm (pulse width modulation) circuit is very important to fine adjust the variable capacitor position. pwm
（脉宽调制）电路微调可变电容器的位置是非常重要的。
the geared motor on this project is a 12 vdc unit that receives the 12 vdc power supply voltage direct for the higher speed tune; once passed the peak receiving signal the reverse lower speed button is pressed for the fine tune adjustment.
在这个项目上的减速电机是12 vdc单位收到的12 vdc电源电压直接为更高的速度调;一旦通过高峰接收信号反向较低的速度按钮按下微调调整。
all inside a mouse magnetic loop control
鼠标内部的磁回路控制
the all inside a mouse small magnetic loop control concept is a more practical and elegant solution
.所有鼠标里面的小的磁回路控制概念，是一个更实际和优雅的解决方案。
the only interface required is a small box with two dc female connectors.
所需的唯一接口与两个直流母连接器的小盒子。
in = 12 vdc input. = 12 vdc输入。
out = pwm dc low speed voltage or 12 vdc voltage selected by the mouse buttons. out = pwm
直流低速电压或12伏直流电压鼠标按钮选择。
电路工作视频
http://player.youku.com/player.php/sid/xmze1ntu5ntgw/v.swfall inside a mouse small magnetic loop remote control
鼠标小的磁回路远程控制内
hf station and the “all inside a mouse magnetic loop control”.
hf站和“鼠标磁回路控制内部的所有”。
