描述
产品定位与功能
根据型号命名规则推测，PCI-5112_100可能为NI推出的高密度、多通道动态信号采集卡，属于X系列或更高性能产品线，专为振动分析、声学测试及高精度工业测量设计。其核心功能包括高速同步采样、多通道差分输入及内置抗混叠滤波，支持复杂信号的实时捕获与处理。
核心参数推测
模拟输入（AI）
-通道配置：16通道差分输入（等效32单端通道）；
-分辨率与采样率：24位分辨率，单通道最大采样率100 kS/s，支持多通道同步（如8通道×200 kS/s）；
-输入范围：±0.1 V至±10 V可编程增益调节（增益×1至×1000）。
信号处理能力
-抗混叠滤波：内置数字滤波器（截止频率可设为采样率1/2.56）；
-动态范围：>110 dB（适用于微小信号检测）。
触发与同步
-触发模式：边沿/脉冲触发、外部时钟同步（支持PXI星触发兼容）；
-多设备扩展：通过PCI总线或菊花链实现多卡同步。
技术特点
高精度测量
-集成NI-mCAL自动校准技术（减少温度漂移误差）；
-共模抑制比（CMRR）>100 dB（抑制共模噪声）。
工业级可靠性
-宽温工作范围（-40°C至85°C）；
-耐振动与电磁干扰（符合MIL-STD-810G标准）。
软件生态兼容性
-支持NI-DAQmx驱动及LabVIEW、MATLAB开发环境；
-提供Python/Java API接口适配第三方工具。
典型应用场景
机械测试
-振动与噪声分析（多通道同步采集加速度信号）；
-结构健康监测（长期应变数据记录）。
声学研究
-声压级测量（高分辨率捕获音频信号）；
-语音识别算法验证（多麦克风阵列输入）。
工业控制
-生产线质量检测（高速采集传感器信号实时反馈）。
Product Positioning and Functions
According to the model naming rules,PCI-5112_100 may be a high-density,multi-channel dynamic signal acquisition card launched by NI.It belongs to the X series or higher performance product line and is specially designed for vibration analysis,acoustic testing and high-precision industrial measurement.Its core functions include high-speed synchronous sampling,multi-channel differential input and built-in anti-aliasing filtering,which support real-time capture and processing of complex signals.
Core parameter estimation
Analog input(AI)
-Channel configuration:16-channel differential input(equivalent 32 single-ended channel);
-Resolution and sampling rate:24-bit resolution,maximum sampling rate of single channel 100 kS/s,supports multi-channel synchronization(such as 8 channels×200 kS/s);
-Input range:±0.1 V to±10 V programmable gain adjustment(gain×1 to×1000).
Signal processing capability
-Anti-aliasing filter:built-in digital filter(the cutoff frequency can be set to sampling rate 1/2.56);
-Dynamic range:>110 dB(suitable for micro signal detection).
Trigger and synchronization
-Trigger mode:edge/pulse trigger,external clock synchronization(supports PXI star trigger compatibility);
-Multi-device expansion:Multi-card synchronization is achieved through PCI bus or daisy chain.
Technical Features
High-precision measurement
-Integrated NI-mCAL automatic calibration technology(reduces temperature drift error);
-Common mode rejection ratio(CMRR)>100 dB(suppress common mode noise).
Industrial-grade reliability
-Wide temperature operating range(-40°C to 85°C);
-Resistance to vibration and electromagnetic interference(compliant with MIL-STD-810G standard).
Software Ecocompatibility
-Supports NI-DAQmx driver and LabVIEW and MATLAB development environments;
-Provides Python/Java API interface adaptation to third-party tools.
Typical application scenarios
Mechanical testing
-Vibration and noise analysis(multi-channel synchronous acquisition of acceleration signals);
-Structural health monitoring(long-term strain data recording).
Acoustic Research
-Sound pressure level measurement(high resolution capture audio signals);
-Voice recognition algorithm verification(multi-microphone array input).
Industrial Control
-Production line quality inspection(high-speed acquisition of sensor signals real-time feedback).
