Analyzing the World with Data Acquisition Systems

Data acquisition systems, or DAQ systems, are the the next generation of tools built for analyzing the world around us.  DAQ systems are an essential engineering tool that allow physical conditions to be converted into electrical signals, which can then be analyzed by a computer.

To start off simple we can look at a simple system, such as a digital thermostat.  Just like the old school thermometers on the wall that you adjust with a lever or dial, a digital thermostat controls the temperature with a digital controls utilizing data acquisition.  First, a temperature sensor produces a signal that is analyzed by the DAQ system.  The DAQ system analyzes the current temperature then adjust the heater or ac to establish the set temperature.

Larger DAQ system record multiple temperatures and pretty much any other type of sensor that produces an electrical signal.  Below is an image of a few type of DAQ systems by National Instruments.

National Instruments is the industry leader in test system and automation.