Pressure Measurements

National Instruments offers a wide variety of pressure measurement solutions ranging from simple, secure Wi-Fi devices to high-channel rack-mountable systems. You can integrate all NI pressure measurement systems with other measurements and sensor types because of the modular design. Software options are available for configuration-based loggers as well as full programming environments.

Choosing a Pressure Sensor and Measurement Device

Pressure measurements are one of the fastest growing types of physical measurements. You can make pressure measurements in various mediums using different channel counts. Depending on the desired accuracy, range, and expense, you have several sensor options for measuring pressure. National Instruments offers a wide variety of devices for you to choose from to make pressure measurements.

How-to 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.

Modular and Portable Pressure Measurements

NI CompactDAQ is a portable, rugged data acquisition platform that integrates connectivity and signal conditioning into modular I/O for directly interfacing to any sensor or signal. Use NI CompactDAQ with NI LabVIEW software to customize how you acquire, analyze, present, and manage your measurement data. National Instruments provides programmable software, high-accuracy measurements, and local technical support to ensure you meet your exact measurement application requirements from research to development to validation.

  • I/O modules with 24-bit resolution and up to 50 KS/s per channel
  • Channel counts of up to 4 pressure channels per module and 32 channels per chassis
  • Direct connectivity to torque or load cells and pressure transducers

Learn more about NI CompactDAQ

Configure your complete NI CompactDAQ system

Embedded Pressure Measurements

NI CompactRIO combines an open embedded architecture with small size, extreme ruggedness, and hot-swappable industrial I/O modules, and is powered by the LabVIEW reconfigurable I/O architecture. Each system contains an FPGA for custom timing, triggering, and processing with a wide array of available modular I/O to meet any embedded application requirement.

  • I/O modules with 24-bit resolution and up to 50 KS/s per channel
  • Channel counts of up to 4 pressure channels per module and 32 channels per chassis
  • Direct connectivity to torque or load cells and pressure transducers

Learn more about CompactRIO

Configure your complete NI CompactRIO system

Modular and High-Accuracy Pressure Measurements

The NI 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 platform is recommended for highly accurate pressure measurements. The NI PXIe-4330 has an accuracy of up to 0.02 percent and the NI PXIe-4331 can sample up to 102.4 kHz. These solutions can scale to thousands of pressure measurement channels for large applications.

  • Channel counts of up to 8 pressure channels per module and 136 channels per chassis
  • Connectivity to torque or load cells and pressure transducers
  • Configurable desktop, rack-mount, and distributed multichassis solutions

Learn about NI SC Express on the PXI platform

Choose your PXI pressure modules

Benefits of Using NI for Pressure Measurements

  • Integrated signal conditioning for bridge-based pressure sensors including filtering, amplification, and bridge completion
  • High-speed hardware offerings for dynamic pressure applications
  • Flexible virtual instrumentation for customizing NI measurement hardware to meet the unique requirements of your pressure measurement application

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