Technologies are generally described for detecting acceleration by sensing a movement of a liquid contained in at least one liquid flow path arranged in a film-type material. An example device may be configured to detect acceleration based at least in part on an output signal from at least one strain sensor formed on at least one surface of a film layer. The film layer may include at least one liquid flow path containing a liquid and arranged in the film layer. The strain sensor may be formed on the at least one surface of the film layer in the vicinity of the least one liquid flow path, and may be configured to detect deformation on the at least one surface of the film layer.