描述
产品概述
NI PXIe-6124是美国国家仪器(NI)推出的PXI Express多功能数据采集(DAQ)模块,专为高通道数同步采集与混合信号处理设计。其集成模拟输入/输出、数字I/O及计数器功能,适用于工业自动化、振动分析及多信号协同测试场景。
核心参数与功能
模拟输入模块
-通道配置:4通道同步采样,16位分辨率;
-采样速率:单通道/多通道均支持4 MS/s(最大持续速率);
-输入范围:±10 V(默认,支持软件调整);
-抗混叠滤波:硬件级抗混叠滤波器(截止频率可配)。
模拟输出模块
-通道配置:2通道,16位分辨率;
-更新速率:单通道4 MS/s,双通道2.5 MS/s;
-输出范围:±10 V。
数字I/O与计数器
-数字I/O:24条独立可编程线路(兼容TTL电平);
-计数器/定时器:2个32位计数器(支持PWM、频率测量等)。
触发与同步
-触发模式:模拟边沿、数字触发(支持PXI星触发同步);
-信号路由:通过PXIe_DSTARA/B/C实现跨模块信号互联。
接口与系统兼容性
总线接口:PXI Express x4(理论带宽5 GT/s);
物理连接:
-BNC接头(模拟输入/输出);
-DB-37接头(数字I/O与计数器);
兼容性:
-支持与NI PXIe-6363、PXIe-4461等模块构建混合系统。
软件支持与开发工具
驱动程序:NI-DAQmx 17.0及以上版本(支持多线程与实时控制);
集成开发环境:
-LabVIEW SignalExpress(交互式数据记录与分析);
-TestStand(自动化测试框架集成)。
典型应用场景
工业测试:
-多传感器同步采集(如压力、温度信号);
-电机控制闭环测试(结合PWM输出与计数器反馈);
科研实验:
-振动信号动态捕获(高采样率支持高频分析);
-实时信号生成与响应验证(如声学实验)。
Product Overview
NI PXIe-6124 is a PXI Express multi-function data acquisition(DAQ)module launched by National Instruments(NI),designed for high-channel synchronous acquisition and mixed signal processing.It integrates analog input/output,digital I/O and counter functions,and is suitable for industrial automation,vibration analysis and multi-signal collaborative testing scenarios.
Core parameters and functions
Analog input module
-Channel configuration:4-channel synchronous sampling,16-bit resolution;
-Sampling rate:Single channel/multi-channel support 4 MS/s(maximum sustained rate);
-Input range:±10 V(default,software adjustment is supported);
-Anti-aliasing filter:Hardware-level anti-aliasing filter(cutoff frequency can be matched).
Analog output module
-Channel configuration:2 channels,16-bit resolution;
-Update rate:single channel 4 MS/s,dual channel 2.5 MS/s;
-Output range:±10 V.
Digital I/O and Counter
-Digital I/O:24 independent programmable lines(compatible with TTL level);
-Counter/Timer:2 32-bit counters(supports PWM,frequency measurement,etc.).
Trigger and synchronization
-Trigger mode:analog edge,digital trigger(supports PXI star trigger synchronization);
-Signal routing:Cross-module signal interconnection is realized through PXIe_DSTARA/B/C.
Interface and system compatibility
Bus interface:PXI Express x4(theoretical bandwidth 5 GT/s);
Physical connection:
-BNC connector(analog input/output);
-DB-37 connector(digital I/O and counter);
compatibility:
-Supports the construction of hybrid systems with NI PXIe-6363,PXIe-4461 and other modules.
Software Support and Development Tools
Driver:NI-DAQmx 17.0 and above(supports multi-threading and real-time control);
Integrated development environment:
-LabVIEW SignalExpress(interactive data recording and analysis);
-TestStand(automated test framework integration).
Typical application scenarios
Industrial testing:
-Multi-sensor synchronous acquisition(such as pressure and temperature signals);
-Motor control closed-loop test(combined with PWM output and counter feedback);
Scientific research experiments:
-Dynamic capture of vibration signals(high sampling rate supports high frequency analysis);
-Real-time signal generation and response verification(such as acoustic experiments).