描述
产品概述
NI cDAQ-9188是National Instruments（NI）推出的一款8槽CompactDAQ（cDAQ）机箱，专为分布式、模块化数据采集（DAQ）系统设计。它支持同时安装最多8个C系列I/O模块（如模拟输入、数字I/O、计数器、温度测量等），通过USB 3.0或以太网接口与计算机或嵌入式控制器连接，实现高通道数、多类型的信号采集与控制。cDAQ-9188适用于工业自动化、结构健康监测、环境测试等需要灵活扩展和高速传输的场景。
核心功能
8槽模块化设计
支持混合安装C系列I/O模块（如NI 9221、NI 9230、NI 9401等），单机箱最多可扩展至数百通道（视模块类型而定）。
模块热插拔支持，便于在线维护和升级。
高速数据传输
USB 3.0接口：理论带宽5 Gbps，实测持续传输速率可达300 MB/s以上，满足高采样率需求（如多通道同步采集）。
千兆以太网接口：支持远程部署，传输距离可达100米（通过交换机扩展），适合分布式测试系统。
同步与定时功能
内置100 MHz参考时钟，支持多机箱或模块间同步（精度±50 ns），确保多传感器数据的时间一致性。
提供TTL/CMOS兼容的触发输入/输出，可与其他设备（如数字I/O模块、运动控制器）协同工作。
坚固耐用的设计
工业级温度范围：-40°C至70°C（扩展温度型号），适应恶劣环境。
抗冲击振动：符合MIL-STD-810G标准，适合车载或野外应用。
IP40防护等级：防尘设计，延长设备使用寿命。
灵活的电源选项
支持9-30 V DC外部电源输入，可通过电源适配器或工业电池供电。
低功耗设计（典型值15 W，不含模块），适合嵌入式应用。
技术规格
参数规格
插槽数量8个C系列模块插槽（兼容所有C系列I/O模块）
接口类型USB 3.0（Type-B）、千兆以太网（RJ45）
数据传输速率USB 3.0：最高300 MB/s（持续）；以太网：最高100 MB/s（依赖网络配置）
同步精度±50 ns（机箱间同步，使用TSN或IRIG-B时钟）
触发输入/输出1路TTL/CMOS兼容触发输入，1路触发输出
电源输入9-30 V DC（外部电源适配器或工业电池）
功耗典型值15 W（不含模块），最大值30 W（含满配模块）
温度范围-40°C至70°C（工业级型号，扩展温度范围）
尺寸（宽×高×深）21.6 cm×8.7 cm×22.9 cm（8.5 in×3.4 in×9.0 in）
重量1.2 kg（2.6 lb，不含模块）
软件支持NI-DAQmx驱动，兼容LabVIEW、C/C++、Python、MATLAB等
应用场景
工业自动化测试
同步采集温度、压力、振动等多类型信号，用于生产线质量检测或设备状态监测。
结构健康监测
部署在桥梁、建筑等结构上，长期记录应变、加速度等数据，分析结构安全性。
环境测试
连接温湿度、风速、气体传感器，监测气象或污染数据，支持远程数据传输。
能源管理
采集电网电压、电流波形，分析电能质量（如谐波、闪变），优化能源使用效率。
科研与教育
实验室多传感器数据采集，如生物电信号（EEG/ECG）、光信号、声学信号同步分析。
优势总结
高扩展性：8槽设计支持混合安装不同功能模块，满足复杂测试需求。
高速传输：USB 3.0和千兆以太网接口确保数据实时性，减少传输瓶颈。
工业级可靠性：宽温度范围和抗振动设计，适合长期野外或工业环境部署。
易用性：通过NI-DAQmx配置向导快速设置参数，兼容LabVIEW等开发环境。
注意事项
模块兼容性：
确认所选C系列模块与cDAQ-9188的固件版本兼容（可通过NI MAX软件检查）。
电源需求：
高功耗模块（如NI 9269模拟输出模块）可能需额外电源支持，建议计算总功耗并选择合适电源。
同步配置：
多机箱同步需配置TSN（时间敏感网络）或IRIG-B时钟源，确保精度要求。
散热设计：
密集安装模块时，建议保持机箱通风良好，避免高温导致性能下降。
Product Overview
NI cDAQ-9188 is an 8-slot CompactDAQ(cDAQ)chassis launched by National Instruments(NI),designed for distributed,modular data acquisition(DAQ)systems.It supports the installation of up to 8 C series I/O modules(such as analog input,digital I/O,counters,temperature measurement,etc.)at the same time,and connects to a computer or embedded controller via USB 3.0 or Ethernet interface to achieve high-channel,multi-type signal acquisition and control.cDAQ-9188 is suitable for scenarios that require flexible expansion and high-speed transmission,such as industrial automation,structural health monitoring,and environmental testing.
Core Functions
8-slot modular design
Supports mixed installation of C series I/O modules(such as NI 9221,NI 9230,NI 9401,etc.),and a single chassis can be expanded to hundreds of channels(depending on the module type).
Module hot-swap support facilitates online maintenance and upgrades.
High-speed data transmission
USB 3.0 interface:Theoretical bandwidth is 5 Gbps,and the measured continuous transmission rate can reach more than 300 MB/s,which meets the needs of high sampling rate(such as multi-channel synchronous acquisition).
Gigabit Ethernet interface:Supports remote deployment,and the transmission distance can reach 100 meters(expanded through switches),which is suitable for distributed test systems.
Synchronization and timing functions
Built-in 100 MHz reference clock,supports synchronization between multiple chassis or modules(accuracy±50 ns),and ensures the time consistency of multi-sensor data.
Provides TTL/CMOS compatible trigger input/output,which can work with other devices(such as digital I/O modules,motion controllers).
Rugged design
Industrial temperature range:-40°C to 70°C(extended temperature model),adapt to harsh environments.
Shock and vibration resistance:Meets MIL-STD-810G standard,suitable for vehicle-mounted or field applications.
IP40 protection level:dust-proof design,extending the service life of the equipment.
Flexible power supply options
Supports 9-30 V DC external power input,powered by a power adapter or industrial battery.
Low power consumption design(typical value 15 W,without module),suitable for embedded applications.
Technical Specifications
Parameter Specification
Number of slots 8 C Series module slots(compatible with all C Series I/O modules)
Interface type USB 3.0(Type-B),Gigabit Ethernet(RJ45)
Data transfer rate USB 3.0:up to 300 MB/s(sustained);Ethernet:up to 100 MB/s(depending on network configuration)
Synchronization accuracy±50 ns(inter-chassis synchronization,using TSN or IRIG-B clock)
Trigger input/output 1 TTL/CMOS compatible trigger input,1 trigger output
Power input 9-30 V DC(external power adapter or industrial battery)
Power consumption Typical 15 W(without module),maximum 30 W(with fully populated module)
Temperature range-40°C to 70°C(industrial model,extended temperature range)
Dimensions(W×H×D)21.6 cm×8.7 cm×22.9 cm(8.5 in×3.4 in×1.3 in)9.0 in)
Weight 1.2 kg(2.6 lb,excluding modules)
Software supports NI-DAQmx driver,compatible with LabVIEW,C/C++,Python,MATLAB,etc.
Application scenarios
Industrial automation testing
Synchronously collects multiple types of signals such as temperature,pressure,vibration,etc.for production line quality inspection or equipment status monitoring.
Structural health monitoring
Deployed on structures such as bridges and buildings,long-term recording of strain,acceleration and other data to analyze structural safety.
Environmental testing
Connect temperature,humidity,wind speed,and gas sensors to monitor meteorological or pollution data and support remote data transmission.
Energy management
Collect grid voltage and current waveforms,analyze power quality(such as harmonics and flicker),and optimize energy efficiency.
Research and education
Laboratory multi-sensor data acquisition,such as synchronous analysis of bioelectric signals(EEG/ECG),optical signals,and acoustic signals.
Advantages summary
High scalability:The 8-slot design supports mixed installation of different functional modules to meet complex testing needs.
High-speed transmission:USB 3.0 and Gigabit Ethernet interfaces ensure real-time data and reduce transmission bottlenecks.
Industrial-grade reliability:Wide temperature range and anti-vibration design,suitable for long-term field or industrial environment deployment.
Ease of use:Quickly set parameters through the NI-DAQmx configuration wizard,compatible with development environments such as LabVIEW.
Notes
Module compatibility:
Confirm that the selected C Series module is compatible with the firmware version of cDAQ-9188(can be checked through NI MAX software).
Power requirements:
High-power modules(such as NI 9269 analog output modules)may require additional power support.It is recommended to calculate the total power consumption and select the appropriate power supply.
Synchronization configuration:
Multi-chassis synchronization requires TSN(time-sensitive network)or IRIG-B clock source to ensure accuracy requirements.
Heat dissipation design:
When densely installing modules,it is recommended to keep the chassis well ventilated to avoid performance degradation due to high temperature.
