The Instrumentation
Laboratory of the Department of Mechanical Engineering at the University
of Texas at Tyler supports a number of courses and projects.
The lab supports
the first ME Laboratory course where students are introduced to measurement
systems and instrumentation. Equipment used in laboratory experiments
includes potentiometers and LVDTs (Linear Variable Differential Transformers),
pressure gages, manometers and electronic pressure sensors, thermometers,
thermocouples and thermistors, strain gages and load cells, and accelerometers
(used for vibration measurements in conjunction with an electro-mechanical
shaker). Students are shown how to calibrate the various measurement
devices. For example an Ashcroft deadweight tester is used to calibrate
the pressure transducers. Tektronix digital multi-meters and Hewlett-Packard
digital oscilloscopes are used to read signals from electronic sensors,
and operational amplifier circuits are created to condition the sensor
signals.
Two PC-based data
acquisition systems (Data Translation and Keithly-Metrabyte) are used
to gather and store data from the electronic sensors for later processing
and analysis.
In addition to the
assigned experimental work, which includes data analysis and laboratory
report writing, student teams design and implement an experimental procedure
to investigate a problem of their own choosing.