In the Data Acquisition Using NI-DAQmx and LabVIEW Course, you will explore the fundamentals of data acquisition using sensors, NI data acquisition hardware, and LabVIEW. The first part of this class teaches the basics of hardware selection, including resolution and sample rate, and the foundation of sensor connectivity, including grounding and wiring configurations. The second part of this class focuses on using the NI-DAQmx driver to measure, generate, and synchronize data acquisition tasks. You will learn about programming finite and continuous acquisitions, as well as best practices in hardware/software timing, triggering, and logging. In this class, you will get hands-on experience configuring and programming NI data acquisition hardware using NI-DAQmx and LabVIEW.
Develop integrated, high-performance data acquisition systems that produce accurate measurements
Acquire data from sensors, such as thermocouples and strain gages, using NI data acquisition hardware
Apply advanced understanding of LabVIEW and the NI-DAQmx API to create applications
Eliminate measurement errors due to aliasing and incorrect signal grounding
Initiate measurements using hardware and software triggering
Acquire and generate single-point and buffered analog waveforms
Acquire and generate digital signals
Use signal conditioning to improve the quality of acquired signals
Synchronize multiple data acquisition operations and devices
Duration
Two (2) days
Audience
Developers using LabVIEW with NI data acquisition hardware to create data acquisition applications
Users familiar with the DAQ Assistant or basic NI-DAQmx code that want to expand their programming capabilities
Users new to PC-based data acquisition and signal conditioning
Prerequisites
LabVIEW Core 1
LabVIEW Core 2
NI Products Used
LabVIEW
NI-DAQMX
CompactDAQ Chassis
c Series analog input, analog output, and digital I/O modules
NI Course Outline
Lesson | Overview | Topics |
Measuring Analog Input | Select and connect to the hardware, configure the DAQmx task appropriately, and validate an analog signal. | -Simulating the Hardware -Selecting the Right Hardware -Considering Signal Conditioning -Connecting the Signal -Validating the Measurement -Measuring Current |
Generating Analog Output | Select and connect to the hardware, configure the DAQmx task appropriately, and validate an analog signal. | -Selecting the Hardware -Connecting the Signal -Validating the Signal -Generating Current |
Generating and Reading Digital Signal | Select and connect to hardware, configure the DAQmx task appropriately, and validate a digital signal. | -Selecting the Hardware -Exploring Signal Conditioning -Connecting the Signal -Validating the Signal -Exploring Counter Signals |
Choosing a Signal to Explore | Choose a specific signal and configure the DAQmx task, including any special signal conditioning needs. | -Measuring Temperature -Measuring Sound, Vibration, and Acceleration (IEPE Measurements) -Measuring Strain, Force, and Pressure (Bridge-Based Measurements) -Measuring Position with Encoders (Counter Input) -Measuring Edges, Frequency, Pulse Width, and Duty Cycle -Generating a Pulse Train |
Programming with the NI-DAQmx API | Use NI-DAQmx API in LabVIEW to automate data communication between a DAQ device and a computer. | -DAQmx Code Structure Overview -Reading and Writing Finite Amount of Data -Communicating Data Continuously |
Programming Multiple Channels | Examine various methods for multi-channel task creation and their applications. | -Communicating with Multiple Channels -Creating Multidevice Tasks -Using Multiple Lines of a DAQmx Code in a Single VI |
Triggering on a Specific Condition | Acquire data on a specific condition and explore how to use hardware sources as triggers. | -Triggering Overview -Types of Hardware Triggers -Sources of Hardware Triggers |
Exploring Advanced Timing and Synchronization Methods | Use an appropriate method for synchronizing multiple DAQ tasks. | -Synchronization Overview -Synchronizing a Single Device with a Shared Trigger -Identifying Limitations of Shared Trigger Synchronization -Synchronizing Multiple Device -Synchronizing Specific Hardware Series |
Logging Measurement Data to Disk | Log data to a TDMS file to store and analyze post-acquisition. | -TDMS File Overview -Logging Data with the DAQmx API -Organizing the TDMS Data -Viewing the TDMS Data |
Exploring System Considerations | Explore additional aspects of building a data acquisition system. | -Exploring System Considerations for Hardware -Determining the Accuracy of a System -Exploring Bus and Computer Considerations -Where to Start the DAQ Application |