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David L. Myers; Marc Hill; Brooke Baughman; Eugene T. Smith – Journal of Chemical Education, 2023
This exercise encompassed the construction and use of a microcontroller-based laser refractometer. The instrument, which does not require a high skill level to build, primarily consisted of a line laser, optical sensor, several 3-D printed parts and printed circuit boards, and a microcontroller development board. Construction and testing of the…
Descriptors: Open Education, Lasers, Shared Resources and Services, Printing
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Navarre, Edward C. – Journal of Chemical Education, 2020
A simple computer interface for controlling a compact spectrograph for use as a spectrophotometer in an undergraduate teaching laboratory was developed. The project was implemented on a Raspberry Pi computer which permits the integration of a light source into the software. The interface was written in Python to facilitate modification by the user…
Descriptors: Chemistry, Science Instruction, College Science, Undergraduate Students