140DAI45300 磁芯電流探頭可以測試直流電和交流電，并且測試直流電和高頻交流電信號的方法不同�；魻�傳感器用于測量直流和低頻交流電，而電流互感器用于測量高頻交流電。交流電在電流互感器的鐵芯中產(chǎn)生磁場，然后電流在第二個繞組電路中汲取并饋入示波器。如下所示：
交直流混合探頭的結(jié)構(gòu)圖如下：
在降額曲線中，只能在低于10K的頻率下測試15Arms的最大連續(xù)電流。
磁芯電流探頭降額功率的主要原因是，當(dāng)測量高頻和高振幅電流時，探針本身會發(fā)熱。這些熱量甚至可能導(dǎo)致探頭融化并損壞。自熱的主要原因有兩個：
1、高頻電流產(chǎn)生交變磁場。磁場在導(dǎo)體上感應(yīng)出渦流，頻率越高，渦電流越大，渦流會導(dǎo)致導(dǎo)體發(fā)熱和渦流損耗。
2、在測量高頻電流時，磁芯電流探頭使用變壓器方法進(jìn)行測量。隨著高頻信號在導(dǎo)體上產(chǎn)生趨膚效應(yīng)，導(dǎo)體的電阻增加，導(dǎo)體產(chǎn)生熱量，頻率越高，皮膚現(xiàn)象越明顯。
為了避免熱損壞核心流量探頭，在使用時應(yīng)考慮待測電流的頻率及其諧波分量及其幅度之間的關(guān)系。
專業(yè)致力于電力電子變換技術(shù)的研發(fā)和應(yīng)用,專業(yè)生產(chǎn)變頻電源、直流電源、交流負(fù)載、直流負(fù)載、回饋式電子負(fù)載、回饋式電網(wǎng)模擬器、電池模擬器、充電樁測試負(fù)載、光伏逆變器測試設(shè)備、新
能源電機(jī)電控測試電源及自動化測試系統(tǒng)等產(chǎn)品制造及解決方案廠家，是國內(nèi)電源行業(yè)與測試系統(tǒng)核心技術(shù)自動化的高新技術(shù)企業(yè)。
140DAI45300
PTQ-PDPMV1
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140CHS11000 Quantum
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Quantum Power Supply 電源模板
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Quantum Digital Input Module 開關(guān)量輸入模板
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Quantum Digital Output Module 開關(guān)量輸出模板
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Quantum Analog Output Module 模擬量輸出模板
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Quantum Analog Mixed Module 模擬量混合模板
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Quantum Inbligent Module 智能模板
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Quantum Backplane 背板
140XBP00200 Quantum
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Quantum Communication Module 網(wǎng)絡(luò)通訊模板
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Quantum Cablefast Connection Cablefast 預(yù)接線系統(tǒng)
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Quantum Terminal Block and Accecories 端子連接器及附件
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Safety Quantum系統(tǒng)
140CPU65160S Quantum
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BMEP581020
BMEP582020
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140DAI45300
