纳米压痕技术（Nano-indentation）是测试材料在纳米尺度上各种力学性质的最简单方法之一，主要通过测量压头压入下材料的形变来推断力学性质。传统纳米压痕试验只能研究局域形变，而且对力学性质的推断十分依赖正确的接触模型。结合纳米金刚石（Nano-diamond）中氮-空位色心（Nitrogen-vacancy center）量子传感器和原子力显微镜纳米压痕技术，可以通过测量材料表面纳米金刚石的转动获得非局域形变。利用非局域形变，可以并验证不同的接触模型和研究材料的力学性质。本文主要回顾并介绍这种新的技术手段。另外，通过对接触模型的理论计算，发现当材料的表面张力在可忽略和非常大两种极限情况下，材料表面的非局域形变分别接近对数函数以及反比例函数，因此可以用重构出来的非局域形变，直接推测表面张力的影响，并且在表面张力较大的时候估算表面张力的数值。这对于进一步准确获取软物质以及细胞的表面信息很有意义。

Nano indentation is one of the simplest methods to get the mechanical properties of materials on the nanometer scale. The mechanical properties can be inferred mainly by measuring the deformation of materials under the indenter pressing. Traditional nano indentation test can only study local deformation, and the inference of mechanical properties depends on the correct contact model. Combined with the nitrogen vacancy color center quantum sensor and AFM nano indentation technology, the nonlocal deformation can be obtained by measuring the rotation of nano diamond docked on the surface of materials., and Ddifferent contact models and mechanical properties of materials can be verifiedand deduced with the nonlocal deformation. This paper mainly reviews and introduces this new technology. In addition, through the theoretical calculation of the contact model, it is found that when the surface tension of the material is negligible or very large, the nonlocal deformation of the material surface is close to the logarithmic function and the inverse proportion function respectively, so the reconstructed nonlocal deformation can be used to directly infer the surface tension, and further more we can directly calculate the value of surface tension using our equation. This is of great significance for further accurate acquisition of soft matter and cell surface information.