0 a piece of equipment for measuring the area of a flat shape by moving a point around its edge -- 測面計；求積儀
We begin with a brief description of the planimeter.
Measurements were made with hand-held calipers and planimeter from hard copy.
The area covered by the different habitats in the whole study area and in the three separate zones was estimated using a planimeter.
This measurement has been conducted with a planimeter or a computer-assisted technique using digitized copies of the mammogram.
Bay dimensions were extracted by planimeter from topographic maps.
The planimeter was a manual instrument to calculate the area of a closed figure by tracing over it with a mechanical linkage.
That means the planimeter measures the distance that its measuring wheel travels, projected perpendicularly to the measuring wheel's axis of rotation.
Originally a radial planimeter was of academic interest only, but ten years later clock driven recording instruments started being used.
