Planimeter

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Photographer
Richards, Mark
Dimensions
overall: 1.5 x 11.25 x 2 in
Credit Line
Courtesy of Gordon and Gwen Bell
Copyright Owner
© Mark Richards
Keywords
Electronics; Digital; Planimeter
Object ID
B252.82

Planimeters became commercially available in the second half of the 1800s. The most popular of several styles was the polar planimeter, in which the linkage moves relative to a fixed point. Modern planimeters often use digital electronics.