A curvature sensor using a solid polymer electrolyte

Abstract

This paper describes a development of a polymer sensor using a solid polymer electrolyte (SPE) film. The sensor has a basic structure that an SPE film is sandwiched between thin carbon films, and conductive tapes are attached on each carbon film. The SPE film has a good flexibility and it is one of the most promising electroactive polymers (EAP) with capability to be used as an actuator and a sensor in air. First a displacement sensor using the SPE film was fabricated. The response to deformation was investigated. Then a curvature sensor using the SPE film is proposed. In experiments, it was found that the proposed sensor is available to measure curvature directly without complex calculations.

Frequency Response of Polymer Sensor for Measuring Finger Scratching Motion

“…Also, functionality of the polymer sensor using SPE film has been investigated. [12,15] It was observed that the output voltage of the sensor is associated with bending deformation [12]. Moreover, it was found that the output voltage of the polymer sensor is proportional to the average of the deformed curvature over the whole sensor element [15].…”

“…In previous studies [12,15], it was reported that the output voltage of the polymer sensor is proportional to the average of the curvature over the whole sensor element. Therefore, in order to estimate the finger posture during scratching, a finger bending motion sensor using polymer sensor is proposed and fabricated as shown in Fig.…”

“…Scratch motion sensor is developed in order to measure the finger bending angle, which is one of finger posture information, during scratching. A polymer sensor [12] is used as the sensor material developed by the authors. The polymer sensor is composed of ionic liquid and solid polymer electrolyte.…”

“…The polymer sensor is composed of ionic liquid and solid polymer electrolyte. The sensor output is corresponding to the deformed curvature in sensor [12]. Therefore, in order to measure the finger bending angle, the polymer sensor is attached on the finger joint by using a net bandage.…”

Characterization of a curvature sensor using a solid polymer electrolyte

“…In the previous study 5 , authors have proposed an SPE sensor. The proposed sensor element has a basic structure that an SPE is sandwiched between the thin carbon films.…”