NI provides boards and solutions that are widely used in array testing , especially in applications that require high-precision and high-speed data acquisition, signal processing, and control. Array testing involves synchronous data acquisition, signal processing, and analysis of multiple sensors or signal sources to achieve accurate signal detection, voltage and current measurement, and analysis. It is commonly used in the verification of new material arrays, acoustic metasurface research, and high-channel density chip research.

▶PXI sound and vibration acquisition module DSA-acoustic array test

PXI sound and vibration modules are designed for applications such as audio test and measurement, noise and vibration diagnostics, machine condition monitoring, automotive testing, noise, vibration and harshness (NVH) analysis, and laboratory research. This series of boards provides up to 16 analog input channels, high channel density, suitable for multi-point measurement and array applications. The maximum sampling rate can reach 204.8kS/s, suitable for high-speed dynamic signal acquisition.

Each channel is equipped with an independent 24-bit analog-to-digital converter to ensure excellent signal fidelity. Extremely low noise floor and high dynamic range enable the capture of signals with a wide dynamic range. Supports multi-board synchronization to achieve synchronized data acquisition for extended systems. Provides software-configurable AC/DC coupling, anti-aliasing filters, and IEPE adjustments to ensure accurate measurements using microphones, accelerometers, and other sensors with a large dynamic range.

▶PXI Digital Mode Board - Semiconductor Devices, Chip Arrays NI provides high-performance digital mode boards for high-speed data transmission, communication, and digital interface testing. Designed for applications that require precise and high-speed digital signal generation and acquisition, it is widely used in semiconductor testing, communication equipment verification, and embedded system development.

The board can provide up to 32 digital channels, supporting parallel testing and multi-device synchronization. By combining multiple modules, a synchronous digital subsystem with up to 512 channels can be created. The data transmission rate is up to 200Mb/s and the clock generation frequency is 160MHz. In terms of software, it provides a variety of development and debugging tools such as the digital mode editor, as well as LabVIEW and text-based language API support. The high channel count, high data rate and rich measurement functions of the PXI digital mode board are also suitable for a variety of array test scenarios.

▶PXI Source Measure Unit SMU-New Material Array Research PXI source measure unit SMU provides precise voltage or current source and measurement functions, can perform power supply and measurement operations simultaneously , and provides high-precision, high-resolution and fast-response measurement capabilities. SMU modules can provide multiple channels in a compact PXI chassis. A single SMU can provide up to 24 channels, and a single chassis can provide up to 408 channels, which greatly improves the channel density of the system and reduces the system footprint and cost.

This is especially important for large-scale parallel testing and multi-point measurement applications. SMU can provide up to 6½-digit resolution and 10fA current sensitivity, and can accurately measure tiny voltage and current changes. NI high-channel density SMU products are ideal for semiconductor testing, material research, sensor testing, and electronic device characterization analysis with their high precision, high channel density, and flexible configuration capabilities. Through seamless integration with NI software tools, it not only simplifies system development and control, but also improves test efficiency and accuracy. Whether it is large-scale parallel testing or precision electrical measurement, NI high-channel density SMU products can provide excellent performance and reliability, and are very suitable for array testing of new materials. They are widely used in storage and computing integration, photoelectric detectors and other fields.

NI provides a highly flexible and configurable instrument platform, FlexRIO, and high-performance PXI FPGA boards, which are suitable for complex test and measurement scenarios that require high-speed real-time data processing , such as real-time image processing, complex protocol analysis and generation, fast control and feedback systems, etc. They are widely used in medical imaging, industrial detection, communications, automotive and other application fields.

FlexRIO Platform

FlexRIO supports high parallelism and can process high-speed data streams by combining powerful Xilinx reconfigurable FPGAs. It is suitable for applications that require high sampling rate and low latency data acquisition and processing as well as custom hardware design. The parallel processing capability of FPGA enables it to process complex signals and complex algorithms in real time.

FlexRIO products support two architectures. The first architecture combines a variety of modular I/Os to support the input and output of analog, digital, and RF signals. These modules are attached to the front of the PXI FPGA module for FlexRIO and communicate through a parallel digital interface. Users can choose the appropriate I/O configuration according to the specific application to meet the needs of different application scenarios; the second architecture uses high-speed serial converters and integrates I/O and Xilinx UltraScale FPGA technology in a single device. It uses Xilinx's latest FPGA chips, PCI Express and other streaming technologies, and NI P2P data stream high-speed transmission technology to communicate with other modules through the backplane for high-bandwidth data.

When used with other PXI devices such as PXI Vector Signal Transceivers, additional FPGA resources are available to run complex algorithms in real time. The FlexRIO platform is a fully reconfigurable instrument that combines hardware, software, and IP libraries, allowing engineers to quickly start building custom designs.

▶Reconfigurable FPGA IO Modules In addition to the FlexRIO platform, NI offers a series of high-performance PXI FPGA boards designed for high-speed data acquisition, real-time signal processing, and flexible I/O control. This series of boards is equipped with Xilinx Kintex-7 FPGA, which provides powerful computing power and flexible parallel processing capabilities.

The programmability of FPGA allows users to customize complex signal processing and control algorithms according to application requirements. Through seamless integration with the LabVIEW FPGA module, these boards not only simplify the development process, but also provide engineers and scientists with powerful tools to meet various challenging application requirements. Whether it is high-precision data acquisition or real-time signal processing, this series of boards can provide excellent performance and flexibility.

NI multifunction I/O boards are ideal for data acquisition, signal generation, and control with their high performance, flexible configuration, and ease of use. PXI multifunction I/O boards provide a combination of analog I/O, digital I/O, counter/timer, and trigger functions with different channel numbers, sampling rates, and output rates. Different models also have precise timing, triggering, and synchronization. PXI multifunction I/O boards have NI-DAQmx drivers and configuration utilities, which simplify system development and control and improve measurement efficiency and accuracy. This series of boards is widely used in scientific research such as ultrasonic signal acquisition and nondestructive testing, as well as a variety of industrial testing scenarios.

NI also provides oscilloscope boards for higher-speed data acquisition, with extremely high sampling rates, up to billions of times per second (GS/s), capable of capturing details of high-speed transient signals. The NI product line offers a wide range of options from low-speed to high-speed data acquisition, with different channel counts, covering different test requirements and application scenarios.

NI offers a series of high-precision small signal data acquisition boards with a resolution of up to 28 bits, which can capture very subtle signal changes. It can support up to 32 synchronous channels, allowing data from multiple sensors to be collected simultaneously, which is suitable for applications that require parallel data acquisition.

To ensure the quality of the acquired signals, different boards provide different types of isolation and filtering. The sampling rate ranges from 5kS/s/ch to 20MS/s/ch, which can capture fast-changing signals. The software can simplify configuration and measurement through the NI-DAQmx driver configuration utility. NI high-precision small signal data acquisition boards are widely recognized for their high performance, flexibility, and ease of use. They are ideal for biomedical applications such as EEG signal testing, biosensing, and chip power consumption analysis that require high-precision measurements.