/technologies/sensor-technology/b/blog/posts/gel-sensor-generates-voltage-from-slight-vibrationsImage a represents the alkyl–π liquid and an alkyl–π gel in vials. Meanwhile, image b shows the response of the alkyl–π gel vibration sensor to 17 Hz vibrations. (Image Credit: Takashi Nakanishi National Institute for Mate...en-USTelligent Community 12