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Data Acquisition (DAQ)
NI DAQ systems include NI devices, sensors, and software like LabVIEW and FlexLogger™ software, offering a complete solution for accurate data capture and analysis.
Learn about mioDAQWhat is DAQ?
Data acquisition (DAQ) is the process of measuring an electrical or physical phenomenon, such as voltage, current, temperature, pressure, or sound. A DAQ system consists of sensors, DAQ measurement hardware, and a computer with programmable software such as LabVIEW.
Data Acquisition Basics and Technology
Turning Real-World Data into Insights
Every data acquisition task has its own set of requirements. To help meet your unique needs, NI products range from plug-and-play DAQ devices for fixed and repeatable measurements, to scalable and flexible modular DAQ systems. Our versatile driver is extended by NI data acquisition-specific software and supports third-party programming languages.
Accurate
Flexible
Scalable
Programmable
What NI DAQ Hardware Is Right for You?
If your measurement needs fall within ±10 VDC input/output and TTL digital signals, a multifunction I/O device provides the best performance-to-cost ratio. These all-in-one devices connect to a computer over USB or can be installed in a computer.
Recommended Uses:
- Desktop and workbench data acquisition
- ±10 V input/output and digital signals
- Sensors with 10 V output signals
For more diverse measurement options, upgrade to a CompactDAQ system. These systems include a selection of measurement modules that support various voltage and digital input ranges, a wide array of sensors, and options for isolated measurements and rugged environments.
Recommended Uses:
Compact vibration and acoustic measurements
Electromechanical component test systems
High-channel count, distributed systems
For optimal system performance, upgrade to a PXI system. These systems combine and synchronize instruments with data acquisition, sensor measurements, a high-speed bus, and the latest processor technology.
Recommended Uses:
Production test systems for electronics where minimizing test time is crucial
Automated test systems that combine instruments with data acquisition
High-channel-count, high-data-throughput applications
Devices
Find the Right DAQ Hardware
NI’s DAQ devices are divided into categories to help you easily find options that meet your needs. Select by measurement type, such as temperature or strain, or common form factors, including USB.
Accelerate Your DAQ Setup with Free FlexLogger Lite
Start your data acquisition with free FlexLogger Lite, included with supported NI hardware. Configure channels and log data effortlessly with no programming required. Adapt to project changes effortlessly and upgrade anytime to the full-featured FlexLogger for more complex tasks such as basic automation, triggers, and alarms.
How to Choose
Selecting DAQ Hardware
Identifying the right DAQ system or device for your project requires considering many factors. Here are some helpful resources to guide you toward an approach that delivers the data you need to make business decisions.
Choosing the Right Hardware
Choosing between DAQ Systems
Building a Measurement System
The software and hardware environment need for fast, convenient, and stable system development is indispensable, and NI has it all.
Dr. Zhizhong Wang
China Steel Corporation
DAQ Resources: Sensor Fundamentals
Sensors that convert real-world phenomena (such as temperature or pressure) into measurable currents and voltages are essential to data acquisition. Learn more about sensors through practical examples in our tutorials.