福禄克 A40B系列精密电流分流器 选件
名称：仪器附件及传感器
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简介：福禄克 A40B系列精密电流分流器 选件,A40B系列精密电流分流 Precision, low inductance shunts for DC and AC current metrology 高精度，低电感分流的直流和交流电流测量 T...
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福禄克 A40B系列精密电流分流器 选件,A40B系列精密电流分流
Precision, low inductance shunts for DC and AC current metrology 高精度，低电感分流的直流和交流电流测量
The A40B Precision Current Shunt Set consists of 14 low-inductance coaxial current shunts, adapters and connectors, and a rugged transit/storage case. 该A40B精密电流分流设置由14个低电流电感同轴分流，适配器和连接器，和一个坚固的过境/储存情况。 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. 设计电流1毫安至100号A ，目前的分流是实验室使用 ， 使直接测量绝对交流或直流电流测量 ， 以及对AC / DC 电流传输测量。 They exhibit outstanding resistance value stability, with an excellent self-heating power coefficient, and a low temperature coefficient. 他们表现出杰出的电阻值稳定，良好的自我加热功率系数和低温度系数。 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. 所有这些特点结合起来，提供直接的分流测量电流DC至100千赫与更高的精度比以往商用分流技术。 Now precision measurements can be made in a single step process rather than by more complex traditional ac/dc transfer methods. 现在 ， 高精度测量 ， 可在一个单一步骤的过程 ， 而不是更复杂的传统的AC / DC 转移方法。
A40B系列精密电流分流
Simplifies calibration/verification of precision calibrators and current sources简化了校准/检定的精确校准器和电流源
Shunts sized for currents from 1mA to 100A分流大小的电流1毫安到100号A
Usable from dc to 100 kHz可从DC至100千赫
14 individual shunts with a 1, 2, 5 sequence over 6 decades of current 14个人分流了1 ， 2 ， 5序列超过6几十年的现行
Simple direct measurements, making ac/dc transfers unnecessary简单的直接测量，决策的AC / DC转让不必要
Stability typically better then ± 5.0 µΩ/Ω for one year更好的稳定性通常然后± 5.0 μΩ / Ω一年
Typical angular accuracy of better than ± 0.003º at 1 kHz典型角精度优于± 0.003 º在1 KHz
Application 应用程序
The wide range of shunt values permit measuring from 0.1mA to 100 Amps. 范围广泛的分流值允许测量由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). 有形建筑和组件使用在目前的分流确保频率响应非常平坦（振幅位移误差相对直流电阻） 。 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测量。 Combined with excellent dc resistance stability, the shunts can be used to directly measure current through their full bandwidth. 加上出色的直流电阻稳定，分流可用于直接测量电流通过他们的全部带宽。 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. 这简化了交流电流测量精度为复杂的AC / DC 测量转让过程将不再有必要对许多精密电流测量应用。这些特点使该A40B分流适合传统精密电流应用 ， 如校准核查。 Also, the wide current range allows verification of high current transconductance amplifiers. 此外，全电流范围允许核查高电流跨导放大器。 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. 低相移误差是至关重要的衡量非正弦波形状，在电能质量或取样数字瓦特计测量应用。
Technical overview 技术简介
The shunts come in four different sizes. 分流来的四个不同的尺寸。 The full set includes: 整套包括：
four fully enclosed shunts: 1 mA, 10 mA, 20 mA, 50 mA四个全封闭分流：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五小规模径向分流：一〇 〇毫安， 200毫安， 500毫安， 1 ， 2
three medium size radial shunts: 5A, 10 A, 20 A三个中型径向分流： 5A型， 10 ， 20
two large size radial shunts: 50 A, 100 A两个大型径向分流： 50 ， 100
Voltage output is nominally 0.8 volts for the nominal rated current input. 输出电压0.8伏特 ， 名义上的标称额定电流输入。 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. 输出电压的测量或检测器，如精密电压表，交流计量标准，交流/直流转换标准，或热电压转换器，适合他们的各种计量应用。
The radial style shunt design gives high performance with minimum external magnetic fields. 径向式分流设计提供高性能与最小的外部磁场干扰。 Plus, the open nature of the physical design maximizes air flow so the shunts have a minimal power coefficient effects. 另外，开放性的物理设计 ， 以便最大限度地提高气流的分流一个小功率系数的影响。 This permits each shunt to be used over a wide range of currents with stable resistance characteristics. 这使每个分流用于多种电流稳定的阻力特性。
The shunt resistance is designed to minimize interaction with the detector instrumentation. 分流电阻是为了尽量与探测器仪器。 The 100 Amp shunt resistance is 8 milliohms, with shunt resistance increasing to 80 ohms for the 10 mA shunt. 100安培分流电阻8毫，与分流电阻增加至80欧姆的一十毫安分流。 Additionally, the 1mA shunt includes an internal battery operated buffer amplifier. 此外，一毫安分流包括一个内置电池操作的缓冲放大器。 It drives the output voltage so the 800 ohm shunt resistance has minimal interaction with the measurement device. 该驱动器的输出电压 ， 使800欧姆分流电阻最小的互动与测量设备。
Reports of calibration 报告校准
The A40B series of precision current shunts come standard with a report of traceable calibration including data. 一系列的A40B精密电流分流器的标准配备的报告可追踪校准包括数据。 17025A Accredited reports of calibration are available as an optional service. 17025A校准认可报告可作为一个可选服务。
