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滤波器
filter 发表于 2008-1-27 17:52:00 |
一种新型低频滤波器
在低频（600Hz_500KHz）常用的带通滤波器中，LC滤波器体积大，稳定性欠佳，晶体滤波器稳定性好，但只能制成窄带滤波器，并且抗振动冲击性能差。有源滤波器虽体积小，但稳定性和衰减特性常不佳，而且调试不易。另外陶瓷滤波器也存在温度系数差和低频时抗震动性能低。所以选择性能更好的选频器件已成为广大技术人员的共识。川康通信电子设备厂专业化生产的机械滤波器正是在此基础上发展起来的，产品选用专用合金制作，Q值高、频率稳定性好，专业技术设计生产，具有体积小，重量轻，可在低频段替代现用器件，且使用方法相同，甚至更简便，可大为提高您的产品性能，对优化电路和小型化整机无疑是一首选器件，可广泛用于通信、载波、测控、数传、船载、电力线载波设备以及防盗报警设备等等各类电子整机产品中。产品分军品和民品两大系列，用户只需提出所需器件的具体指标，如：频率、带宽、阻带、阻抗等，我厂即可按其要求试制生产。一般规格为48.6×23.6×16、33×17×15(长×宽×高mm),三端直插式引线封装,另特制超小型系列规格13×11×11(长×宽×高mm)供选用，产品被众多电子整机厂商和科研院校采用。此外。还可提供性能配对和频率对应的机械振荡器,确保温度系数一致性。集十余年生产经验，热诚为您服务。
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非常同意你的看法
krhskf(游客)发表评论于2008-8-15 15:32:00 |
| The science of love OVER the course of history it has been artists, poets and playwrights who have made the greatest progress in humanity's understanding of love. Romance has seemed as inexplicable as the beauty of a rainbow. But these days scientists are challenging that notion, and they have rather a lot to say about how and why people love each other.Scientists are finding that, after all, love really is down to a Warhammer Online Power Leveling chemical addiction between people IF IT were a country, California would be one with more people than Canada and an economy the size of China's. Its scientists shoot, with their rockets, for the moon; its films spread Hollywood's culture around the globe; its athletes break world records; even its wines now rank with the best of France's.Ifyouwow power leveling look aroundwow power leveling at thewow power leveling men andwow power leveling women whom you can call happy, you will see that they all have certain things in common. The most important of these things iswow power leveling wow powerleveling wow powerleveling an activity which at most gradually buildswow powerleveling up something wow powerleveling that you are glad to see wow powerleveling world of warcraft power leveling world of warcraft power levelingcoming into existence. Womenworld of warcraft power leveling who take anworld of warcraft power leveling world of warcraft power leveling instinctive pleasure in their children world of warcraft powerleveling world of warcraft powerlevelingcan get this kind of satisfaction out of bringing up a family. world of warcraft powerleveling world of warcraft powerleveling Artists and authors and men of scienceworld of warcraft powerleveling wow gold wow gold get happiness in this way if their own workwow gold wow gold seems good to them. But therewow gold world of warcraft gold world of warcraft gold are many humbler forms of the same kindworld of warcraft gold world of warcraft gold world of warcraft gold of pleasure. Many men who spend their working life in the city devote their weekends to voluntary and unremuneratedAOC Power Leveling AGE OF CONAN Power Leveling toil in their gardens, and when the spring comes, they experience all the joys of having created beauty. A mother holds a cherished, inexplicable bond with her child. The path of motherhood is not an easy one and the women that walk this path should be applauded.As you all know, Mother's Day is just around the corner. For those of you who forgot, this is the day to honor the woman that brought you into this world. Don't make the same mistake that I did for so many years and buy her appliances to Warhammer Online Gold last her a lifetime of cooking and cleaning.This year, give the mom in your life a gift that show you care and love her with all your heart. Here are 10 of those potentially awesome gifts LWB-3 f7p6a7ae |
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郁闷中
HQWEPOF(游客)发表评论于2008-7-15 15:19:00 |
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哎呀
UHLXSOXMQ(游客)发表评论于2008-7-12 18:45:00 |
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Re:滤波器
电子实验室(游客)发表评论于2008-3-13 20:52:00 |
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Re:滤波器
电脑技术(游客)发表评论于2008-2-29 20:05:00 |
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