ERIC Number: EJ1172015
Record Type: Journal
Publication Date: 2018-Mar
Abstractor: As Provided
Electro-Mechanical Resonance Curves
Greenslade, Thomas B., Jr.
Physics Teacher, v56 n3 p144-145 Mar 2018
Recently I have been investigating the frequency response of galvanometers. These are direct-current devices used to measure small currents. By using a low-frequency function generator to supply the alternating-current signal and a stopwatch smartphone app to measure the period, I was able to take data to allow a resonance curve to be drawn. This is the sort of project that should provide a fascinating research experience for the introductory physics student. In this article I will discuss the galvanometers that I used in this work, and will show a resonance curve for one of them.
Descriptors: Physics, Scientific Concepts, Measurement Equipment, Handheld Devices, Introductory Courses, Measurement
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: email@example.com; Web site: http://aapt.scitation.org/journal/pte
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Authoring Institution: N/A