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PRODUCTION ENGINEERING - DATA ACQUISITION: Ultimate test.

Publication: The Engineer
Publication Date: 29-SEP-08 		Format: Online
Delivery: Immediate Online Access

Article Excerpt
From as far back as the time of ancient Greeks and Mayans, operators have looked at scientific instruments and written down observations.

It was not until the arrival of the computer that data could be acquired and stored automatically. The introduction of the digital computer provided the platform to not only acquire and store data but also analyse and report it.

This is achieved using a three-part data acquisition (DAQ) system that consists of an input/output sub-system, a PC and the controlling software.

Today a wide variety of firms make data acquisition and control interfaces for the PC. Most systems have an internal plug-in board configuration or an external box.

The majority of plug-in board business is based on the PCI bus (or variants such as cPCI and PXI) and is starting to follow the lead...

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