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Direct linkDoroodmand, Mohammad Mahdi; Maleki, Norooz; Kazemi, Hojjatollah – Journal of Chemical Education, 2010
A simple, sensitive, and portable viscometer has been designed using an opto-mechanical mouse. The viscosity of a fluid is measured using the infrared light-emitting diodes and the optical diodes of an opto-mechanical mouse. These components are positioned near the top and bottom of a glass tube containing the fluid to be measured. The viscosity…
Descriptors: Structural Elements (Construction), Science Activities, Hands on Science, Computer Peripherals
Barden, William, Jr. – Science PROBE!, 1991
Described is a simple electronic interface that can receive signals from up to four analog sensors and four event detectors and save the data on disk. Schematic diagrams, construction details, sample temperature plot and weather station logging programs, and a parts list are included. (KR)
Descriptors: Computer Assisted Instruction, Computer Peripherals, Computer Software, Computer System Design
