?????????HP4191A HP4192A HP4287A hp4287a ??С?13528839036
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????????С?13528839036
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LCR????HP4191A??
?????????迹Z??????Y?????L??????R,??????D ,???????
????迹???????????
????Verification Scheme of RF
Impedance Measuring Instruments ????JJG 2011-87
???????棺????迹?????????
????迹???????????
??????????????????????????????迹??????????????20kHz-1GHz??ε?R??L??C?????????????????????????豸?????????????????涨???????????????????????????迹??????????????????????????????????????
??????????????????
????1?????????????迹?????????????????????????????20kHz-1000GHz????迹???????????????????????糣???????????????????????????豸???????
????2????????????????迹????????????????
????2.1??????????????迹????????迹????????????????????????????????á???????У????????????????????????迹?????????á?????????????????????迹????????????????????????????????????????迹????????????1-1000??MHz??Σ??似????????
????????????????????????1.000±0.002??????????????±180°±0.5°??
????2.2????????迹??????????????????????????????HP4191A????迹??????????????????????????????????????迹????????????????????
??????????????1-1000??MHz
????????????????????????1.000±(0.003-0.007)
???????????θ??±180°±0.5°??
?????????迹????Z????1Ω-10kΩ±??0.5-10??%
????????????C??10pF-100nF±(0.2-10)%;
???????????L??10nH-100μH±??0.2-10??%
????????????tgδ??D??0.001-0.5±<(0.002-0.05)
???????????????????迹???
????3??????????迹?????????
????3.1????迹?????50Ω??0Ω??0S??????????????????????????????????????????￡?
????????50Ω???????≤0.0025??????????0Ω???????迹С??2mΩ??????????0S??????????0.080pF??
??????Щ?????????У??????????????????????迹??????????LCR?????????迹??????????У??л???????????????迹?????????????50Ω?迹????????????У?Q???tgδ??????豸??
????3.2?????????迹?????????Щ????????????????迹???????????????????????豸????????????????迹?????????似????????
????????????20kHz-1000MHz??
?????????迹??Z????1Ω-10kΩ±??1-20%????
????????????C??10pF-100nF±(0.5-20)%??
???????????L??10nH-1.00μH±??0.5-20??%