Abstract
This paper describes a characteristic evaluation of a solid polymer electrolyte (SPE) sensor. The sensor has a basic structure that the SPE film is sandwiched between thin carbon films. Each carbon is coated with Ag paste and they are covered with polymer films. SPE film has a good flexibility, and can be used in air. The SPE sensor output is related to the average of the curvature of the measured surface. In this paper, in order to obtain the output characteristics of the SPE sensor, the influence of the area size of the sensor element on the sensor output is investigated. As a result, it is found that the output is independent of the area size of the sensor element.
