描述
产品概述
NI PXIe-6363是美国国家仪器（NI）推出的X系列高性能多功能数据采集模块，基于PXI Express总线设计，专为工业自动化、精密测试及复杂信号处理场景优化。其集成多通道模拟输入/输出、数字I/O及计数器功能，支持高速同步采样与灵活触发配置，适用于从基础数据记录到高精度闭环控制的广泛需求。
核心参数与功能
模拟输入（AI）
-通道配置：64路单端或32路差分输入；
-分辨率与采样率：16位分辨率，单通道最高1 MS/s，多通道聚合采样率可达2 MS/s；
-输入范围：±10 V（默认，支持±0.1 V至±10 V可编程范围）；
-精度特性：
-全量程绝对精度：±1.66 mV（基于校准后两年内温度变化≤10°C）；
-噪声水平：9.4µV RMS（典型值）。
模拟输出（AO）
-通道与性能：8路16位输出，单通道更新速率2.8 MS/s；
-动态特性：支持高速波形生成（如脉冲序列、正弦波）及闭环控制反馈。
数字I/O（DIO）
-通道数：48线（支持10 MHz硬件定时信号）；
-功能：
-关联时钟（Correlated DIO）实现纳秒级时序控制；
-可配置为输入/输出或计数器辅助信号接口。
计数器/定时器
-资源：4个32位计数器，最大频率80 MHz；
-功能：
-正交编码器解码（X4模式，支持多轴运动控制）；
-PWM信号生成、频率测量及事件计数。
触发与同步
-触发模式：
-模拟边沿/窗口触发、数字边沿触发；
-支持外部参考时钟（如10 MHz）同步多设备；
-同步机制：
-通过PXI背板共享时基或RTSI总线实现跨模块同步；
-可编程PFI终端（如CTR0 SRC/PFI8）扩展触发灵活性。
技术特点
硬件架构：
-采用NI-STC3定时控制器，支持独立模拟与数字定时引擎，实现可重新触发的测量任务；
-PCI Express x4接口，独享5 GT/s带宽，降低数据传输延迟。
隔离与保护：
-通道间隔离：250 V RMS（CAT II等级）；
-输入电压保护：±25 V（瞬态耐受）。
软件生态：
-驱动支持：NI-DAQmx（兼容LabVIEW、Python、C/C++等）；
-配套工具：LabVIEW SignalExpress LE简化交互式配置。
Product Overview
NI PXIe-6363 is an X series high-performance multifunctional data acquisition module launched by National Instruments(NI).It is designed based on the PXI Express bus and is optimized for industrial automation,precision testing and complex signal processing scenarios.It integrates multi-channel analog input/output,digital I/O and counter functions,supports high-speed synchronous sampling and flexible trigger configuration,and is suitable for a wide range of needs from basic data recording to high-precision closed-loop control.
Core parameters and functions
Analog input(AI)
-Channel configuration:64 single-ended or 32 differential inputs;
-Resolution and sampling rate:16-bit resolution,a maximum of 1 MS/s for a single channel,and a multi-channel aggregate sampling rate can reach 2 MS/s;
-Input range:±10 V(default,±0.1 V to±10 V programmable range supported);
-Accuracy characteristics:
-Absolute accuracy of the full range:±1.66 mV(based on temperature change≤10°C within two years after calibration);
-Noise level:9.4µV RMS(typical).
Analog output(AO)
-Channels and performance:8 channels 16-bit output,single channel update rate 2.8 MS/s;
-Dynamic features:Support high-speed waveform generation(such as pulse sequence,sine wave)and closed-loop control feedback.
Digital I/O(DIO)
-Number of channels:48 wires(supports 10 MHz hardware timing signal);
-Function:
-Correlated DIO implements nanosecond-level timing control;
-Can be configured as an input/output or counter auxiliary signal interface.
Counter/Timer
-Resources:4 32-bit counters,maximum frequency of 80 MHz;
-Function:
-Quadrature encoder decoding(X4 mode,supports multi-axis motion control);
-PWM signal generation,frequency measurement and event counting.
Trigger and synchronization
-Trigger mode:
-Analog edge/window trigger,digital edge trigger;
-Supports the synchronization of multiple devices with external reference clocks(such as 10 MHz);
-Synchronization mechanism:
-Cross-module synchronization is achieved through PXI backplane sharing time base or RTSI bus;
-Programmable PFI terminals(such as CTR0 SRC/PFI8)extend trigger flexibility.
Technical Features
Hardware architecture:
-Adopt NI-STC3 timing controller,supports independent analog and digital timing engines,and realizes retriggerable measurement tasks;
-PCI Express x4 interface,exclusive 5 GT/s bandwidth,reducing data transmission latency.
Isolation and protection:
-Channel Isolation:250 V RMS(CAT II Level);
-Input voltage protection:±25 V(transient tolerance).
Software Ecology:
-Driver support:NI-DAQmx(compatible with LabVIEW,Python,C/C++,etc.);
-Supporting tools:LabVIEW SignalExpress LE simplifies interactive configuration.
