Deformation-derived electric polarization has been adopted as a core technology for electromechanics devices. Now, as the device experiences the multiple degrees of deformation, such as compressing, bending and stretching, upon the development of technology, the characterization techniques for devices need to be retrofitted to account for the different mechanistic origins of electric polarization. Here, we report the nanogenerators that enable a facile characterization of piezoelectricity and flexoelectricity in the device scale. The quadrant electrode NG along with nematically organized M13 bacteriophage provides the comprehensive piezoelectric coefficients while the flexoelectric coefficient was extracted from sandwich electrode NG. This approach offers a perspective on how to separate the piezoelectric and flexoelectric effects from the electric outputs. Such characterization will not only allow us an understanding of fundamental flexoelectric mechanisms but also help us to establish design rules for flexible electromechanical devices.

变形衍生的极化已被用作机电设备的核心技术。现在，随着设备经历多种变形程度（例如压缩，弯曲和拉伸），随着技术的发展，需要对设备的表征技术进行改造，以解决极化的不同机械起源。在这里，我们报告了能够在装置规模上轻松表征压电和柔电的纳米发电机。象限电极NG与向列组织的M13噬菌体一起提供了综合的压电系数，而挠性电系数是从夹层电极NG提取的。这种方法为如何从电输出中分离出压电和柔电效应提供了一个视角。这样的表征不仅使我们能够了解基本的柔性电动机构，而且还有助于我们建立柔性机电设备的设计规则。