Compact, USB-powered DAQ targets classroom use

Operation of the StudentDAQ is performed with commands sent via a USB connection. User-friendly application software is provided to control the unit using a Microsoft Windows-based PC. Complete source code, written in National Instruments LabVIEW, is included along with a .NET interface. All input connections are handled through a single RJ-45 connector.

The StudentDAQ's 24-bit delta-sigma ADC provides a ±16,000µε measurement range at 80Hz and a gauge factor setting of 2.00, with a 1% of reading accuracy. To minimise temperature effects on lead wires, the unit supports a full three-wire, quarter-bridge connection. The balance of the circuit is manually controlled through the software. Pregaged beams are available to use with the StudentDAQ and are supplied with an appropriate experiment in mechanics for classroom use.

Donielle Dockery, Senior Field Design Engineer, Micro-Measurements, commented: "The StudentDAQ coupled with a single grid strain gauge is the perfect combination for stress/strain classroom lab experiments, homework assignments, advanced science fair projects or independent study. The StudentDAQ is easy to set up and allows users to begin recording strain gauge data at up to 80Hz in minutes. They simply plug the unit into a USB port on their PC, crimp the connector to the end of their bridge instrument, plug into the on-board socket and start the supplied software. It's a powerful, low-cost tool for exploring the fascinating world of experimental mechanics."