高壓瓷片電容是一種以陶瓷材料為介質(zhì)的電容器，一個主要的特點就是耐壓高，2KV、3KV電壓很常見。高壓瓷片電容的工藝是在陶瓷表面涂覆一層金屬薄膜，再經(jīng)高溫?zé)Y(jié)后作為電極而成的電容器。瓷片電容應(yīng)用在高穩(wěn)定震蕩回路中，因穩(wěn)定，絕緣性好，耐壓高而被大家廣泛應(yīng)用。

　　High voltage ceramic capacitor is a kind of capacitor with ceramic material as dielectric. One of its main characteristics is high withstand voltage. 2KV and 3KV voltage are very common. The technology of high voltage ceramic chip capacitor is to coat a layer of metal film on the surface of ceramic, and then sintered at high temperature as the electrode. Ceramic capacitor is widely used in high stability oscillation circuit because of its stability, good insulation and high withstand voltage.

　　選擇一個好的高壓瓷片電容需要經(jīng)過嚴(yán)格的篩選測試才能找到合適的高壓瓷片電容，這里山東紅寶電子小編總結(jié)了以下4個方法可以準(zhǔn)確測量出高壓瓷片電容的好壞。我們常用的測量工具就是：數(shù)字萬用表。

　　To select a good high voltage ceramic capacitor, we need to go through strict screening test to find the appropriate high-voltage ceramic capacitor. Here, Shandong Hongbao electronic editor summarizes the following four methods to accurately measure the quality of high-voltage ceramic chip capacitor. Our common measuring tool is: digital multimeter.

　　方法一、檢測10PF～0 01μF固定電容器是否有充電現(xiàn)象來判斷其好壞。

　　Method 1. Check whether there is charging phenomenon in 10pf-0.01 μ f fixed capacitor to judge whether it is good or bad.

　　萬用表選用1k擋，兩只三極管的β值均為100以上，且穿透電流要小。可選用3DG6等型號硅三極管組成復(fù)合管。萬用表的紅和黑表筆分別與復(fù)合管的發(fā)射極e和集電極c相接。由于復(fù)合三極管的放大作用，把被測電容的充放電過程予以放大，使萬用表指針擺幅度加大，從而便于觀察。

　　When the multimeter is 1K gear, the β value of both triodes is more than 100, and the penetration current should be small. 3DG6 and other silicon triodes can be selected to form the composite tube. The red and black probes of the multimeter are respectively connected with the emitter E and collector C of the composite tube. Because of the amplification effect of the composite triode, the charging and discharging process of the measured capacitance is amplified, and the pointer swing of the multimeter is increased, which is convenient for observation.

　　方法二、檢測10pF以下的小電容，因10pF以下的固定電容器容量太小，用萬用表進行測量，只能定性的檢查其是否有漏電，內(nèi)部短路或擊穿現(xiàn)象。測量時，可選用萬用表10k擋，用兩表筆分別任意接電容的兩個引腳，阻值應(yīng)為無窮大。若測出阻值（指針向右擺動）為零，則說明電容漏電損壞或內(nèi)部擊穿。

　　The second method is to detect the small capacitance below 10PF. Because the capacity of the fixed capacitor below 10PF is too small, the multimeter can only qualitatively check whether there is leakage, internal short circuit or breakdown. When measuring, the 10K gear of the multimeter can be selected, and the two pins of the capacitance can be connected with two probes at random. The resistance value should be infinite. If the measured resistance (pointer swing to the right) is zero, it indicates that the capacitor is damaged by leakage or internal breakdown.

　　方法三、對于0 01μF以上的固定電容，可用萬用表的10k擋直接測試電容器有無充電過程以及有無內(nèi)部短路或漏電，并可根據(jù)指針向右擺動的幅度大小估計出電容器的容量。

　　Method 3. For the fixed capacitors above 0.01 μ F, the 10K gear of the multimeter can be used to directly test whether the capacitor has charging process and whether there is internal short circuit or leakage, and the capacity of the capacitor can be estimated according to the amplitude of the pointer swinging to the right.

　　方法四、在測試操作時，特別是在測較小容量的電容時，要反復(fù)調(diào)換被測電容引腳接觸A、B兩點，才能明顯地看到萬用表指針的擺動。

　　Method 4. In the test operation, especially when measuring the capacitance with small capacity, the pin of the capacitance to be tested should be repeatedly changed to contact a and B points, so that the swing of the multimeter pointer can be seen clearly.

　　在測試過程中我們需要注意的是：數(shù)字萬用表有帶電容測試檔位，可以直接測瓷片電容的容量。不帶這個檔位就不能測容量，只能用電阻檔粗略判斷通斷。瓷片電容壞的較少，主要看看其是不是耐壓不夠，漏電等，普通萬用表很難查到。如果萬用表測有阻值就壞了，耐壓夠不夠不好測，代換法是一個更好的方法。

　　In the process of testing, we need to pay attention to the fact that the digital multimeter has capacitance test gear, which can directly measure the capacitance of ceramic chip. Without this gear, the capacity can not be measured, only the resistance can be used to roughly judge the on-off. Porcelain capacitor is less broken, mainly to see whether it is not enough withstand voltage, leakage, etc., ordinary multimeter is difficult to check. If the multimeter has resistance value, it will be broken. If the withstand voltage is not good enough, the substitution method is a better method.

　　選擇高品質(zhì)的高壓瓷片電容才能保證產(chǎn)品的正常運行，否則會給企業(yè)帶來不必要的麻煩。山東紅寶電子有限公司專業(yè)經(jīng)營電容器元件22年，品類齊全，質(zhì)量上乘，贏得了眾多合作伙伴的青睞。

　　The selection of high-quality high-voltage ceramic capacitor can ensure the normal operation of the product, otherwise it will bring unnecessary trouble to the enterprise. Shandong Hongbao Electronic Co., Ltd. has been specialized in capacitor components for 22 years, with complete categories and high quality, which has won the favor of many partners.