[图文]什么是阻抗 (阻卜指的是)

什么是阻抗具有电阻、电感和电容的电路里，对交流电所起的阻碍作用叫做阻抗。阻抗常用Z表示。阻抗由电阻、感抗和容抗三者组成，但不是三者简单相加。如果三者是串联的，又知道交流电的频率f、电阻R、电感L和电容C，那么串联电路的阻抗

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阻抗的单位是欧。对于一个具体电路，阻抗不是不变的，而是随着频率变化而变化。在电阻、电感和电容串联电路中，电路的阻抗一般来说比电阻大。也就是阻抗减小到最小值。在电感和电容并联电路中，谐振的时候阻抗增加到最大值，这和串联电路相反。阻抗的相关资料:acoustic(al)impedance声阻抗acousticdriving-pointimpedance声激励点阻抗acousticinputimpedance声输入阻抗acousticwaveimpedance声波阻抗aerialimpedance天线阻抗alternatingcurrentimpedance交流阻抗anode-loadimpedance阳极负载阻抗antennacharacteristicimpedance天线特性阻抗antennafeedimpedance天线输入[馈电]阻抗antennainputimpedance天线输入阻抗antennaloadimpedance天线负载阻抗antennamutualimpedance天线互阻抗antennaoutputimpedance天线输出阻抗antennaself-radiationimpedance天线自辐射阻抗backwardimpedance反向阻抗balance-to-groundinputimpedance对地平衡输入阻抗balancedimpedance平衡[对称]阻抗baseimpedance天线座阻抗;基极阻抗beamloadingimpedance射束负载阻抗biasingimpedance偏压阻抗bilateralimpedance双向阻抗blockedimpedance阻挡阻抗,固定阻抗breakdownimpedance击穿阻抗bridgedimpedance桥接阻抗capacitiveimpedance电容性阻抗,容抗cathodecoatingimpedance阴极敷层阻抗cathodeinterfaceimpedance阴极界面阻抗cathodeinterlayerimpedance阴极层间阻抗cavityimpedance腔阻抗characteristicwaveimpedance特性波阻抗circuitimpedance电路阻抗coilimpedance线圈阻抗collector-baseimpedance集电极-基极阻抗combinedimpedance合成阻抗commonimpedance公共阻抗compleximpedance复数阻抗computingimpedance计算阻抗concentratedimpedance集中阻抗condenserimpedance电容器阻抗conjugateimpedance共轭阻抗controlimpedance控制阻抗controllableimpedance可调电感coupledimpedance耦合阻抗crystalimpedance晶体阻抗currentlimitingimpedance限流阻抗cyclicimpedance相序阻抗dampedimpedance阻尼阻抗,衰减阻抗diaphragmimpedance膜片阻抗diodeforwardimpedance二极管正向阻抗direct-axissubtransientimpedance直轴超瞬变阻抗dissymmetricalimpedance不对称阻抗distributionimpedance分布阻抗downleadimpedance(天线)引下线阻抗drivingpointimpedance驱动点阻抗,输入阻抗dynamicplateimpedance动态阳极阻抗earthimpedance对地阻抗effectiveimpedance有效阻抗electricimpedance阻(电)抗,电阻electrodeimpedance电极阻抗equivalentimpedance等效阻抗excitationimpedance励磁[激励]阻抗externalimpedance外阻抗externalplateimpedance板极电路阻抗feedbackimpedance反馈阻抗feedpointimpedance馈电点阻抗freemotionalimpedance*动态阻抗free-spaceimpedance*空间阻抗gateimpedance控制极阻抗;栅(极)阻抗generalizedimpedance广义阻抗generatorimpedance发生器阻抗gridinputimpedance栅极输入阻抗guidecharacteristicwaveimpedance波导管特性波阻抗guidewaveimpedance波导管阻抗heliximpedance螺旋阻抗highinputimpedance高输入阻抗hybridequivalentimpedance混合等效输入阻抗imageimpedance对等阻抗,对象阻抗image-frequencyimpedance镜频阻抗impulsiveimpedance脉冲阻抗inductiveimpedance电感性阻抗inputacousticimpedance声输入阻抗iterativeimpedance累接[迭接]阻抗internaloutputimpedance内输出阻抗,实际输出阻抗intrinsicimpedance固有阻抗inverseimpedance逆[反]阻抗layerimpedance层间阻抗leadimpedance引线阻抗leakageimpedance漏泄阻抗linecharacteristicimpedance传输线特性阻抗linearimpedance线性阻抗loadimpedance(负)载阻抗loopimpedance回线[环线]阻抗lumpedimpedance集总阻抗matchedimpedance匹配阻抗mechanicalimpedance机械阻抗;力阻抗mechanicalrotationalimpedance机械转动阻抗mediumimpedance中间阻抗meshimpedance网孔阻抗microphoneimpedance传声器阻抗mid-seriesimageimpedance串中剖镜象阻抗motionalimpedance动生阻抗mutualradiationimpedance互辐射阻抗naturalimpedance特性阻抗,波阻抗naturalacousticimpedance固有声阻抗negativesequenceimpedance负序阻抗networkinputimpedance网络输入阻抗neuromuscularimpedance神经肌肉阻抗no-loadimpedance无载阻抗nominalcharacteristicimpedance标称特性阻抗,标称波阻抗nominalearphoneimpedance*标称阻抗non-linearimpedance非线性阻抗non-reactiveimpedance无抗阻抗normalimpedance标准阻抗opencircuitdriving-pointimpedance开路策动点阻抗,开路输入阻抗open-circuitimpedance开路阻抗open-circuittransferimpedance开路转移阻抗open-loopoutputimpedance开环输出阻抗optimumimpedance最佳阻抗outputimpedance出端阻抗parallelresonanceimpedance并联谐振阻抗passiveimpedance无源阻抗phase-shiftingimpedance相移阻抗plateimpedance电子管内阻,板极阻抗plate-loadimpedance板极负载阻抗positiveimpedance正阻抗positive-phasesequenceimpedance正相序阻抗quadrature-axissynchronousimpedance交轴同步阻抗radiationimpedance辐射阻抗ratedimpedance额定阻抗reactionimpedance反应阻抗receiving-endimpedance接收端阻抗reciprocalimpedance互易阻抗reciprocatingimpedance倒易阻抗,共轭阻抗reducedimpedance折合[标称]阻抗reflectedimpedance反射阻抗regenerativeimpedance再生干扰resonanceimpedance谐振阻抗resonantcircuitimpedance谐振电路阻抗resultantimpedance合成阻抗reversetransferimpedance反向转移阻抗rotationalimpedance转动阻抗self-biasingimpedance自偏(压)阻抗self-radiationimpedance自辐射阻抗sending-endimpedance发送端阻抗seriesimpedance串联阻抗shieldingimpedance*阻抗short-circuitinputimpedance短路输入阻抗shuntnegativeimpedance并联负阻抗single-endedinputimpedance单端输入阻抗sourceimpedance电源阻抗speakerimpedance扬声器阻抗specificimpedance比阻抗,阻抗率specificacoustic(al)impedance比声阻抗specificnormalacousticimpedance法向声阻抗率speechimpedance语言电阻抗spuriousimpedance乱真阻抗,寄生阻抗staticimpedance静电[静态]阻抗statorimpedance定子阻抗surfaceimpedance表面阻抗surgeimpedance波阻抗,特性阻抗,浪涌阻抗symmetricimpedance对称阻抗synchronousimpedance同步阻抗terminalimpedance终端阻抗time-variableimpedance(随)时变(化)阻抗totalimpedance总阻抗transferimpedance传输阻抗transistorinputimpedance晶体管输入阻抗transistortransferimpedance晶体管转移阻抗tran*ission-lineimpedance传输线阻抗tunedimpedance调谐阻抗unilateralimpedance单向阻抗unitareaimpedance阻抗率unitareaacousticimpedance单位面积声阻抗,声阻抗率vacuumtubeimpedance电子管内阻抗valveinputimpedance电子管输入阻抗variableloadimpedance可变负载阻抗vectorimpedance矢量阻抗,复(数)阻抗virtualimpedance有效阻抗wallimpedance墙壁声阻抗waveimpedance波阻抗waveguideimpedance波导阻抗zero-phasesequenceimpedance零相序阻抗