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ERIC Number: EJ912908
Record Type: Journal
Publication Date: 2010-Dec
Pages: 1
Abstractor: As Provided
Reference Count: 5
ISSN: ISSN-0031-921X
Khan, Sameen Ahmed
Physics Teacher, v48 n9 p607 Dec 2010
Spherometers are instruments designed to measure the radius of curvature of spherical surfaces. They are particularly useful in situations where only a portion of the spherical surface is available, for example, for measuring the radii of curvature of spherical lenses. A spherometer can be easily modified so that it can also be used to measure the radius of curvature of a right circular cylinder. The resulting device is called a "cylindrometer" (also known as the "cylindrospherometer"). The idea is quite old but is seldom mentioned in introductory laboratory courses. This paper describes the device and its operation.
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A