描述
产品定位与功能
NI USB-6210是美国国家仪器（NI）推出的USB总线供电型M系列多功能数据采集（DAQ）模块，专为便携式数据采集、嵌入式控制及院校实验设计。其核心功能包括高精度模拟输入、数字I/O及计数器功能，支持即插即用配置与高速数据传输。
核心参数与性能
模拟输入（AI）
-通道数：16单端/8差分；
-分辨率：16位；
-最大采样率：单通道250 kS/s，多通道综合250 kS/s；
-输入范围：±0.2 V、±1 V、±5 V、±10 V（可编程）；
-精度：最小量程（±0.2 V）绝对精度±0.088 mV。
数字I/O（DIO）
-输入/输出通道：4路DI+4路DO；
-逻辑电平：TTL兼容；
-触发支持：数字边沿触发。
计数器/定时器
-数量：2个32位计数器；
-功能：脉冲计数、频率测量、PWM生成等。
电源与通信
-供电方式：USB总线供电（无需外接电源）；
-数据传输：USB 2.0高速接口（理论带宽480 Mbps），支持信号流技术（类似DMA传输）。
技术特点
高精度与快速响应
-抗混叠滤波：内置抗混叠滤波器（截至频率可配）；
-稳定时间：±1 LSB稳定误差需7μs（满量程跳变）。
软件兼容性
-驱动支持：NI-DAQmx驱动及LabVIEW SignalExpress交互式软件；
-开发环境：兼容LabVIEW、LabWindows/CVI、Measurement Studio及Visual Studio.NET。
工业设计
-过压保护：±30 V（设备开启时）；
-电磁兼容：需避免强电磁干扰环境（输入阻抗高，易受噪声影响）。
Product Positioning and Functions
NI USB-6210 is a USB bus powered M series multi-functional data acquisition(DAQ)module launched by National Instruments(NI),which is designed for portable data acquisition,embedded control and college experiments.Its core functions include high-precision analog input,digital I/O and counter functions,supporting plug-and-play configuration and high-speed data transmission.
Core parameters and performance
Analog input(AI)
-Number of channels:16 single-ended/8 differential;
-Resolution:16 bits;
-Maximum sampling rate:single channel 250 kS/s,multi-channel integrated 250 kS/s;
-Input range:±0.2 V,±1 V,±5 V,±10 V(programmable);
-Accuracy:Minimum range(±0.2 V)Absolute accuracy±0.088 mV.
Digital I/O(DIO)
-Input/output channels:4-channel DI+4-channel DO;
-Logic level:TTL compatible;
-Trigger support:digital edge trigger.
Counter/Timer
-Quantity:2 32-bit counters;
-Functions:pulse counting,frequency measurement,PWM generation,etc.
Power and communication
-Power supply method:powered by USB bus(no external power supply required);
-Data transmission:USB 2.0 high-speed interface(theoretical bandwidth 480 Mbps),supports signal flow technology(similar to DMA transmission).
Technical Features
High precision and fast response
-Anti-aliasing filter:built-in anti-aliasing filter(can be matched until the frequency is cut off);
-Stability time:±1 LSB stability error requires 7μs(full scale jump).
Software Compatibility
-Driver support:NI-DAQmx driver and LabVIEW SignalExpress interactive software;
-Development environment:Compatible with LabVIEW,LabWindows/CVI,Measurement Studio and Visual Studio.NET.
Industrial Design
-Overvoltage protection:±30 V(when the device is turned on);
-Electromagnetic compatibility:It is necessary to avoid strong electromagnetic interference environments(high input impedance and is susceptible to noise).
