福祿克 A40B系列精密電流分流器 選件
名稱：儀器附件及傳感器
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簡介：福祿克 A40B系列精密電流分流器 選件,A40B系列精密電流分流 Precision, low inductance shunts for DC and AC current metrology 高精度，低電感分流的直流和交流電流測量 T...
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福祿克 A40B系列精密電流分流器 選件,A40B系列精密電流分流
Precision, low inductance shunts for DC and AC current metrology 高精度，低電感分流的直流和交流電流測量
The A40B Precision Current Shunt Set consists of 14 low-inductance coaxial current shunts, adapters and connectors, and a rugged transit/storage case. 該A40B精密電流分流設置由14個低電流電感同軸分流，適配器和連接器，和一個堅固的過境/儲存情況。 Designed for currents from 1 mA to 100A, the current shunts are for laboratory use in making directly measured absolute ac or dc current measurements as well as ac/dc current transfer measurements. 設計電流1毫安至100號A ，目前的分流是實驗室使用 ， 使直接測量絕對交流或直流電流測量 ， 以及對AC / DC 電流傳輸測量。 They exhibit outstanding resistance value stability, with an excellent self-heating power coefficient, and a low temperature coefficient. 他們表現出杰出的電阻值穩定，良好的自我加熱功率系數和低溫度系數。 With all of these characteristics combined, the shunts offer direct measurement of current from dc to 100 kHz with higher accuracy than previous commercially available shunt technology. 所有這些特點結合起來，提供直接的分流測量電流DC至100千赫與更高的精度比以往商用分流技術。 Now precision measurements can be made in a single step process rather than by more complex traditional ac/dc transfer methods. 現在 ， 高精度測量 ， 可在一個單一步驟的過程 ， 而不是更復雜的傳統的AC / DC 轉移方法。
A40B系列精密電流分流
Simplifies calibration/verification of precision calibrators and current sources簡化了校準/檢定的精確校準器和電流源
Shunts sized for currents from 1mA to 100A分流大小的電流1毫安到100號A
Usable from dc to 100 kHz可從DC至100千赫
14 individual shunts with a 1, 2, 5 sequence over 6 decades of current 14個人分流了1 ， 2 ， 5序列超過6幾十年的現行
Simple direct measurements, making ac/dc transfers unnecessary簡單的直接測量，決策的AC / DC轉讓不必要
Stability typically better then ± 5.0 µΩ/Ω for one year更好的穩定性通常然后± 5.0 μΩ / Ω一年
Typical angular accuracy of better than ± 0.003º at 1 kHz典型角精度優于± 0.003 º在1 KHz
Application 應用程序
The wide range of shunt values permit measuring from 0.1mA to 100 Amps. 范圍廣泛的分流值允許測量由0.1毫安到100安培。 The physical construction and the components used in the current shunts ensure that the frequency response is very flat (amplitude displacement error relative to dc resistance). 有形建筑和組件使用在目前的分流確保頻率響應非常平坦（振幅位移誤差相對直流電阻） 。 Also the phase displacement at 100 kHz is small enough to be neglected in all but the highest accuracy measurements. 另外 ， 相位移100千赫是小到可以忽略 ， 但在所有的最高精度測量。 Combined with excellent dc resistance stability, the shunts can be used to directly measure current through their full bandwidth. 加上出色的直流電阻穩定，分流可用于直接測量電流通過他們的全部帶寬。 This simplifies precision ac current measurements as the complex ac/dc transfer measurement process will no longer be necessary for many precision current measurement applications. These characteristics make the A40B shunts ideal for traditional precision current applications such as calibrator verification. 這簡化了交流電流測量精度為復雜的AC / DC 測量轉讓過程將不再有必要對許多精密電流測量應用。這些特點使該A40B分流適合傳統精密電流應用 ， 如校準核查。 Also, the wide current range allows verification of high current transconductance amplifiers. 此外，全電流范圍允許核查高電流跨導放大器。 The low phase shift error is critical for measurement of non sinusoidal wave shapes, as found in power quality or sampling digital wattmeter measurement applications. 低相移誤差是至關重要的衡量非正弦波形狀，在電能質量或取樣數字瓦特計測量應用。
Technical overview 技術簡介
The shunts come in four different sizes. 分流來的四個不同的尺寸。 The full set includes: 整套包括：
four fully enclosed shunts: 1 mA, 10 mA, 20 mA, 50 mA四個全封閉分流：一毫安，一零毫安， 20毫安， 50毫安
five small size radial shunts: 100 mA, 200 mA, 500 mA, 1 A, 2 A五小規模徑向分流：一〇 〇毫安， 200毫安， 500毫安， 1 ， 2
three medium size radial shunts: 5A, 10 A, 20 A三個中型徑向分流： 5A型， 10 ， 20
two large size radial shunts: 50 A, 100 A兩個大型徑向分流： 50 ， 100
Voltage output is nominally 0.8 volts for the nominal rated current input. 輸出電壓0.8伏特 ， 名義上的標稱額定電流輸入。 The output is measured by a voltmeter or detector, such as precision voltmeters, ac measurement standards, ac/dc transfer standards, or thermal voltage converters, fitting them to a wide variety of metrology applications. 輸出電壓的測量或檢測器，如精密電壓表，交流計量標準，交流/直流轉換標準，或熱電壓轉換器，適合他們的各種計量應用。
The radial style shunt design gives high performance with minimum external magnetic fields. 徑向式分流設計提供高性能與最小的外部磁場干擾。 Plus, the open nature of the physical design maximizes air flow so the shunts have a minimal power coefficient effects. 另外，開放性的物理設計 ， 以便最大限度地提高氣流的分流一個小功率系數的影響。 This permits each shunt to be used over a wide range of currents with stable resistance characteristics. 這使每個分流用于多種電流穩定的阻力特性。
The shunt resistance is designed to minimize interaction with the detector instrumentation. 分流電阻是為了盡量與探測器儀器。 The 100 Amp shunt resistance is 8 milliohms, with shunt resistance increasing to 80 ohms for the 10 mA shunt. 100安培分流電阻8毫，與分流電阻增加至80歐姆的一十毫安分流。 Additionally, the 1mA shunt includes an internal battery operated buffer amplifier. 此外，一毫安分流包括一個內置電池操作的緩沖放大器。 It drives the output voltage so the 800 ohm shunt resistance has minimal interaction with the measurement device. 該驅動器的輸出電壓 ， 使800歐姆分流電阻最小的互動與測量設備。
Reports of calibration 報告校準
The A40B series of precision current shunts come standard with a report of traceable calibration including data. 一系列的A40B精密電流分流器的標準配備的報告可追蹤校準包括數據。 17025A Accredited reports of calibration are available as an optional service. 17025A校準認可報告可作為一個可選服務。
