Patent · US Active

Optimal excitation force design indentation-based rapid broadband nanomechanical spectroscopy

US8590061B1 · kind B1 · utility

2Cited by

3References

20Claims

0Family size

Assignee

IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. · US

Inventors

Qingze Zou · Willingboro, US
Zhonghua Xu · Shanghai, CN

Key dates

Filing date	Mar 21, 2012
Grant date	Nov 19, 2013
Priority date	—
Expiry date	Mar 21, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01Q60/366
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An optimal input design method and apparatus to achieve rapid broadband nanomechanical measurements of soft materials using the indentation-based method for the investigation of fast evolving phenomenon, such as the crystallization process of polymers, the nanomechanical measurement of live cell during cell movement, and force volume mapping of nonhomogeneous materials, are presented. The indentation-based nanomechanical measurement provides unique quantification of material properties at specified locations. Particularly, an input force profile with discrete spectrum is optimized to maximize the Fisher information matrix of the linear compliance model of the soft material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.