Strain Measurements
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National Instruments offers a wide variety of strain measurement solutions ranging from simple and secure Wi-Fi devices to high-channel count, rack-mountable systems. With modular platforms such as PXI and NI CompactDAQ, you can integrate a wide variety of I/O with your strain measurements. Whether you are making strain measurements in a lab or rugged remote location, NI has the right measurement platform for your application. National Instruments has software options for quickly logging data to disk as well as for full programming environments for complex system architectures. With NI modular hardware and flexible software, you can create a strain measurement system that meets the specific and unique needs of your application. |
Choosing a Strain Sensor and Measurement Device
Strain gages are fundamental sensing devices that function as the building blocks of many other types of transducers, including pressure, load, and torque, used extensively in structural test and monitoring applications. Even though strain gages are common, they are one of the most difficult types of sensors from which to condition and acquire reliable data. National Instruments offers a wide variety of devices for you to choose from to perform strain gage and bridge-based sensor measurements.
How-To Documents and Tutorials
The how-to guide for most common measurements provides information about making common sensor and signal measurements. Each of the following documents covers the operating principle for the corresponding signal/sensor and offers guidance on how to make that type of measurement. These documents help you understand what you need to know to quickly make your desired measurement.
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Modular and Portable Strain Measurements
NI CompactDAQ provides a portable and modular solution for strain measurements. The NI CompactDAQ platform offers up to eight strain channels per module and 64 channels per chassis. The chassis can stream data through USB, Ethernet, or wireless.
- NI C Series I/O modules for taking measurements from any type of sensor
- Multiple timing engines for multiple acquisition rates
- Advanced counter functionality from NI-STC3 technology
Learn more about modular systems for measuring strain
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Modular, Scalable, and High-Accuracy Strain Measurements
The PXI platform provides a variety of chassis, controller, and module options that give you the power to create a measurement system that meets your application's specific needs. The NI SC Express strain modules can provide up to 0.02 percent accuracy at up to 102.4 kS/s. PXI can scale to thousands of strain and bridge-based measurement channels for large applications, and provides both wired and wireless synchronization options.
- Configurable desktop, rack-mount, and distributed multichassis solutions
- Compatibility with a wide range of sensors and transducers
- More than 1,500 PXI modules available, including CAN, vision, motion, and GPS
View specs and pricing
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Embedded Data-Logging Strain Measurements
The NI CompactRIO embedded data-logging system is ideal for a variety of industrial and in-vehicle logging applications that require a stand-alone, rugged logging solution. These data loggers combine an embedded real-time controller for stand-alone operation, a rugged chassis, and a variety of I/O modules for connecting with any analog or digital sensor.
- C Series I/O modules for taking measurements from any type of sensor
- A variety of real-time controllers and reconfigurable chassis featuring a field-programmable gate array (FPGA) for custom timing, analysis, and control; 4- and 8-slot options available
- Open embedded architecture with small size and extreme ruggedness
Configure your embedded data-logging system
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Benefits of Using NI for Strain Measurements
- Integrated signal conditioning and connectivity for resistive foil strain gages and bridge-based sensors to maximize your measurement accuracy and performance
- Broad offering of measurement platforms that scale from one to thousands of temperature measurements with the same software API
- Flexible virtual instrumentation gives you the ability to customize NI measurement hardware to meet the unique requirements of your strain measurement application
- Fiber Bragg grating (FBG) optical strain gage measurement capabilities equip your system for harsh environmental requirements or distributed measurements over long distances
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