varistor.top

varistor.top

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含义:变阻器,电位器
  变阻器可以调节电阻大小的装置,接在电路中能调整电流的大小。一般的变阻器用电阻较大的导线(电阻线)和可以改变接触点以调节电阻线有效长度的装置构成。作用:1、限制电流,保护电路;2、改变电路中电压的分配。
  滑动变阻器是电学中常用器件之一,它的工作原理是通过改变接入电路部分电阻线的长度来改变电阻的,从而逐渐改变电路中的电流大小。滑动变阻器的电阻丝一般是熔点高,电阻大的镍铬合金,电阻杆一般是电阻小的金属,所以电阻丝越长,电阻越大,电阻杆越短,电阻越小。电阻丝外面涂着绝缘层,绕在绝缘管上,它的两端连在A、B两个接线柱上。滑片P通过金属杆和接线柱C相连,滑片移动到不同位置时,A、C两个接线柱间电阻丝的长度不一样,这样就可以改变接入电路中电阻的大小。一般的变阻器用电阻较大的导线和可以改变接触点以调节电阻线有效长度的装置组成。
滑动变阻器构造:1.接线柱 2.滑片 3. 线圈4.金属杆 5.瓷筒。原理:金属杆电阻小,电流顺着划片从金属丝流过从而改变了电阻丝接入电路的长度,也改变了电阻的大小。滑动变阻器的电阻丝绕在绝缘瓷筒上,大部分滑动变阻器电阻丝为镍铬合金丝,电阻丝外面涂有绝缘层。

  电位器是具有三个引出端、阻值可按某种变化规律调节的电阻元件。电位器通常由电阻体和可移动的电刷组成。当电刷沿电阻体移动时,在输出端即获得与位移量成一定关系的电阻值或电压。
电位器既可作三端元件使用也可作二端元件使用。后者可视作一可变电阻器,由于它在电路中的作用是获得与输入电压(外加电压)成一定关系得输出电压,因此称之为电位器。

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If you need this domain(website), please contact us to purchase it by our contact information.You may refuse to buy domain names, but competitors may not. We will reply soon after receiving your consultation. All replies are valid for 3 days.


△ 网站没有好域名,即使全力推广,也难以让人记住,造成对广告的长期依赖。好域名一看就记住,节省大笔广告费,还能带来大量的流量!

Website does not have a good domain name, even if fully promoted, it is difficult to remember, resulting in long-term dependence on advertising. A good domain name, remember at a glance, can save a lot of advertising costs, but also bring a lot of traffic!


△ 如果说网站是通向世界的门,那么域名就是这个通向世界之门的门牌号。

If a website is viewed as profile to the Internet world, then a domain is simply face of the website.


△如果把互联网比作房地产,那么域名就是口岸和地段。

If Internet is compared as real estate, Then a domain can be compared as a port or location.


△好域名是一种稀缺资源,不仅能带来人气和流量,更能带来商机和财源。

Good domains are always resource of rarity, They brings to you more visitors and traffic, And consequently more business opportunities and revenue.


△域名是一种不可再生资源。如果已经在你手上,就意味着别人不能拥有。

Domains are non-renewable resource. If it already in your hands, it means that others can not have it.


△ 最适合您的域名一般不多,也许仅此一个;错过一时,遗憾一生。

The most suitable domain for you is not enough, Maybe the only one.;Miss it in a moment, regret all life.


△ 注意到本域名,证明了您卓越的眼光,也证明了此域名的价值。

Your notice of this domain name reflects your business sense, As well as value of the domain name.


△行业、品牌、商号域名不在自己手中,意味着失去了互联网上的关键入口。

If the domain of Trade、Brand or trade name is not in your own hands, That means lossing the key entry on the Internet.


△一旦域名落入竞争者之手,就等于要遭受持续的打击。域名正在出售,不要被竞争对手买走,而损失客户。

Once the domain falls into the competitor,  It is tantamount to a sustained blow.Domain is being sold, not to be bought by competitors, and loss of customers.


△顶级域名,自然天成!互联网+时代 你应当拥有一个像样的域名,创建一个顶级网站,跟上互联网+时代的步伐。

Top-level domain, Naturalness! Internet+ times, you should have a excellent domain name, create a top-level site, Stay ahead with Internet+ times step.


△趋势的发展,一直走在时代的前端,要把握住风口,做那只会飞的猪!

The trend of development has been walking in the forefront of the times,we must grasp the outlet,As the fly pig!


△项目未做不必担忧,精品在手,域名能够保值增值。

Do not worry about the project did not to do, boutique in hand, the domain name can preserve and increase value.


△早一天拥有,早一天心安;早一天使用,早一天受益!

As early as the day to own it, as long as a day you to be Calm;As early as the day to use it, as long as a day you to benefit.


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