这倪PXI-4071(零件号:778271-01)是一个FlexDMM多功能3U PXI模块，提供高分辨率的估计能力数字万用表(DMM)和数字转换器。作为一个DMM品牌，的PXI-4071从10 nV至1000 V范围内进行快速、精确的电压估计，从1 pA至3 An范围内进行电流估计，从10 ω至5 Gω范围内进行电阻估计，并进行递归/周期和二极管估计。该器件的DC电流范围为-3 A至3 A，在高压受限数字化模式下PXI-4071在所有电压和电流模式下，可以以高达1.8 MS/s的测试速率获得DC耦合波形。利用NI LabVIEW编程中的检查功能，用户可以研究这些波形的时间和重现性。这PXI-4071提供普遍的速度、准确性和有用性，使其成为自动化测试的最佳选择。

这种模式优于传统的7 1/2位数DMM品牌通过利用利用快速PXI总线的现代架构来限制速度/执行。在7 1/2位数时PXI-4071实现7 S/s的DC读取速率。对于需要更高吞吐量的应用，它具有10 kS/s的4 1/2位数的高DC读取速率(这些速率比最初的GPIB控制的DMM快至少5倍)。交流耦合时，该器件的自动量程时间为250 ms(适用于交流V和交流1)，量程/功能变化为10 °/ s，触发延迟和最大触发速率分别为2 s和1 kHz。设备在运行前有1小时的预热时间。

这PXI-4071可以导入和导出触发器，使其与任何多路复用器/矩阵开关模块的协调变得简单。具体来说FlexDMM与国家仪器开关产品相一致。例如，借助NI开关模块和NI开关执行开关管理软件，用户可以量化大量通道，包括电压、热电偶、RTD和热敏电阻。用户还可以对他们的框架的成本保持严格的控制。

PXI-4071

This Ni PXI-4071 (part number: 778271-01) is a FlexDMM multifunctional 3U PXI module that provides high-resolution estimation capabilities for digital multimeters (DMMs) and digital converters. As a DMM brand, PXI-4071 performs fast and accurate voltage estimation from 10 nV to 1000 V, current estimation from 1 pA to 3 An, and 10 ω Up to 5 G ω Perform resistance estimation within the range and perform recursive/periodic and diode estimation. The DC current range of this device is -3 A to 3 A. In high-voltage restricted digital mode, PXI-4071 can obtain DC coupling waveforms at a testing rate of up to 1.8 MS/s in all voltage and current modes. By utilizing the inspection function in NI LabVIEW programming, users can study the time and reproducibility of these waveforms. This PXI-4071 provides universal speed, accuracy, and usefulness, making it the best choice for automated testing. This mode is superior to traditional 7 1/2 bit DMM brands by utilizing modern architecture utilizing fast PXI buses to limit speed/execution. PXI-4071 achieves a DC read rate of 7 S/s at 7 1/2 digits. For applications that require higher throughput, it has a high DC read rate of 4 1/2 bits at 10 kS/s (these rates are at least 5 times faster than the initial GPIB controlled DMM). When coupled with AC, the automatic range time of the device is 250 ms (applicable to AC V and AC 1), the range/function change is 10 °/s, and the triggering delay and maximum triggering rate are 2 s and 1 kHz, respectively. The device has a preheating time of 1 hour before operation. This PXI-4071 can import and export triggers, making coordination with any multiplexer/matrix switch module simple. Specifically, FlexDMM is consistent with national instrument switch products. For example, with the help of NI switch modules and NI switch execution switch management software, users can quantify a large number of channels, including voltage, thermocouples, RTDs, and thermistors. Users can also maintain strict control over the cost of their framework.

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