Description
The NI SCXI-1521B is a specialized module designed for static and fatigue structural tests with 120 Ω quarter-bridge strain gauges. This module, identified by part number 777966-21B, falls under the SCXI & Legacy category and is an essential component for engineers and researchers focusing on material strength and durability analysis.
With its 24-channel capacity, the SCXI-1521B is capable of handling multiple tests simultaneously, making it an efficient tool for comprehensive structural analysis. Each channel is equipped with a fixed-gain amplifier and a fixed 2-pole Butterworth filter, ensuring precise and clear signal processing for accurate measurements.
The module’s excitation source is individually programmable for each channel, with a range of 0-5 V, allowing for flexible and precise control over the testing parameters. This feature is particularly useful for customizing tests to suit specific research needs and material characteristics.
Compatibility with NI-DAQmx 7.3 or later, LabVIEW, and LabWindows/CVI software ensures that the SCXI-1521B can be integrated into existing workflows with ease. This software compatibility facilitates data acquisition and analysis, streamlining the process of deriving actionable insights from structural tests.
For effective usage, the module requires the SCXI-1317 Front-Mounting Terminal Block. Additionally, the SCXI-1310 Connector and Shell Assembly and the TBX-96 DIN-rail Mounted Terminal Block are optional accessories that can enhance connectivity and ease of use.
The module utilizes a 96-pin DIN C male connector for reliable and secure connections, ensuring uninterrupted data transmission and accurate test results. Despite its obsolete status announced by National Instruments, the SCXI-1521B remains available for purchase and repairs through Apex Waves, offering continued support for existing and new users alike.
| Specification | Detail |
|---|---|
| Part Number | 777966-21B |
| Category | SCXI & Legacy |
| Model | SCXI-1521B |
| Description | NI SCXI-1521B, 24-Channel 120 Ohm 1/4-Bridge Strain Input Module |
| Application | Static and fatigue structural tests with 120 Ω quarter-bridge strain gauges |
| Channels | 24 |
| Amplifier | Fixed-gain |
| Filter | Fixed 2-pole Butterworth |
| Excitation Source | Individual 0-5 V programmable per channel |
| Software Compatibility | NI-DAQmx 7.3 or later, LabVIEW, LabWindows/CVI |
| Required Accessories | SCXI-1317 Front-Mounting Terminal Block |
| Optional Accessories | SCXI-1310 Connector and Shell Assembly, TBX-96 DIN-rail Mounted Terminal Block |
| Connectors | 96-pin DIN C male connector |
| Obsolete Status | Announced by National Instruments, available for purchase and repairs by Apex Waves |


