无码人妻久久一区二区三区app,国产熟人av一二三区,国产亚洲精久久久久久无码77777,国产欧美综合一区二区三区

Hello! Welcome to the website of Dongguan Youchen Electronic Technology Co., Ltd.

Youchen Technology

Chip Capacitor/Electrolytic Capacitor/Ceramic Capacitor Supplier
18929295505
admin@dgyouchen.com
Current Page: Home > News > Corporate news
News

What is the fast detection method of in-line aluminum Electrolytic capacitor?

2023-01-05

  In line aluminum Electrolytic capacitorIt is one of the Electrolytic capacitor, also called plug-in capacitance, lead capacitance. The in-line Electrolytic capacitor uses a metal foil (aluminum) as the positive electrode, and the insulating oxide layer (aluminum oxide) of the metal foil as the dielectric. The negative electrode of in-line aluminum Electrolytic capacitor is composed of thin paper soaked with electrolyte (liquid electrolyte).


Usually, the performance parameters of capacitors need to be tested using specialized testing equipment. In limited conditions, we can use a multimeter instead to quickly read and perform simple tests.


1、 Correct selection of resistance range for a multimeter


Since the capacity of the Electrolytic capacitor is much larger than that of the general fixed capacitor, the appropriate range should be selected for different capacities. Based on experience, in general, capacitance between 1-47UF can be measured in R * 1K gear, while capacitance greater than 47UF can be measured in R * 100 gear.


2、 Measure leakage resistance


Connect the red lead of the multimeter to the negative electrode and the black lead to the positive electrode. At the moment of first contact, the multimeter pointer will deflect to the right by a significant amount (for the same electrical barrier, the larger the capacity, the greater the swing), and then gradually rotate to the left until it stops at a certain position. Then, switch the red and black pens, and the multimeter pointer will repeat the above oscillation phenomenon. However, the measured resistance is the reverse leakage resistance of the Electrolytic capacitor, which is slightly less than the forward leakage resistance.


The reverse leakage current is greater than the forward leakage current. The practical use experience shows that the leakage resistance of Electrolytic capacitor should generally be more than several hundred K ohms, otherwise, it will not work normally.


In the test, if there is no charging phenomenon in both forward and reverse directions, that is, the pointer does not move, it means that the capacity has disappeared or there is an internal short circuit. If the measured resistance value is very small or zero, it means that the capacitance has a large leakage or has been broken down and damaged, and can no longer be used.


3、 Polarity discrimination


For Electrolytic capacitor with unknown signs of positive and negative poles, the above method of measuring leakage resistance can be used for discrimination. First, arbitrarily measure the leakage resistance, remember its size, and then exchange the probes to measure a resistance value. The one with the same resistance value between the two measurements is the forward connection method, where the black lead is connected to the positive electrode and the red lead is connected to the negative electrode.

Previous Page:How to Select High Voltage Electrolytic capacitor Safely

Next Page:Resistance and Characteristics of High Voltage Electrolytic capacitor
Youchen Technology
Dongguan Youchen Electronic Technology Co., Ltd
Tel: 0769-85328400 8533526885336465
Fax: 0769-85308615
Email: admin@dgyouchen.com
Website: yzx.net.cn
Address: Floor 3, No. 7 Xinfeng Road, Shangsha Fourth Industrial Zone, Chang'an Town, Dongguan City, Guangdong Province
Yue ICP Bei No. 13008404
All rights reserved:Dongguan Youchen Electronic Technology Co., Ltd
In-line aluminum electrolytic capacitor manufacturer, SMT aluminum electrolytic capacitor manufacturer, direct sales, brand selection, model selection, price
Follow us:

Do you need our help? Welcome to leave your email!
18929295505  
2324774509
admin@dgyouchen.com
成人无码一区二区三区网站| 免费看又黄又无码的网站| 久久久精品中文字幕麻豆发布| 精品视频无码一区二区三区| 国产成人无码精品一区在线观看| 日韩精品人妻中文字幕有码| 久久精品噜噜噜成人| 乌克兰少妇xxxx做受| 黑人巨大精品欧美一区二区免费 | 永久免费观看的毛片手机视频| 人人妻人人澡人人爽曰本| 国产精品51麻豆cm传媒| 国产精品伦一区二区三级视频 | 天天狠天天添日日拍| 亚洲欧美日韩高清一区| 国产熟女露脸大叫高潮| 国产无遮挡又黄又爽高潮| 四虎影视久久久免费| 欧美精品久久天天躁| 日韩精品无码一区二区三区不卡| 天天综合网天天综合色| 帅小伙自慰videogay男男| 女m羞辱调教视频网站| 无码人妻丰满熟妇区毛片| 四虎精品成人免费视频| 国产精品久久婷婷六月丁香| 无码精品人妻一区二区三区中| 黑色丝袜国产精品| 特级毛片爽www免费版| 最新精品国偷自产在线| 国产精品99无码一区二区| 国产l精品国产亚洲区久久 | 不卡av电影在线| 正在播放老肥熟妇露脸| 国产美女被遭强高潮免费网站| 亚洲肥老太bbw中国熟女| 精品国精品国产自在久国产应用| 久久久久88色偷偷| 成人欧美一区二区三区黑人免费| 欧美成妇人吹潮在线播放| 久久国产精品-国产精品|