SCXI-1100
Product Description
The SCXI-1100 is a versatile signal conditioning module developed by National Instruments (NI), designed to integrate with NI’s SCXI (Signal Conditioning eXtensions for Instrumentation) chassis and data acquisition (DAQ) systems. Its primary function is to condition, amplify, and isolate analog signals from a wide range of sensors and transducers (such as thermocouples, RTDs, strain gauges, and pressure transducers) before they are digitized by DAQ hardware. This module is widely used in laboratories, industrial testing facilities, and research environments for applications including temperature profiling, structural stress analysis, and process monitoring, where raw sensor signals are often weak, noisy, or require conditioning to match DAQ input ranges.
In a structural testing lab, the SCXI-1100 connects to strain gauges bonded to a bridge structure. It amplifies the microvolt-level strain signals (typically 0-10 mV) to a range compatible with the DAQ device (e.g., 0-10 V), while filtering out high-frequency noise from nearby machinery. This conditioned signal ensures accurate measurement of stress distribution during load testing. In a temperature monitoring system for a chemical reactor, it conditions thermocouple signals, providing cold junction compensation and linearization to convert millivolt outputs into precise temperature readings, which are then digitized for real-time process control.