Tactile surface texture characterisation method

US9080854B2 · kind B2 · utility

Assignee

• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

• Florian De Boissieu · Le Pont-de-Claix, FR
• Christelle Godin · Grenoble, FR

Key dates

• Filing date: May 6, 2010
• Grant date: Jul 14, 2015
• Expiry date: Sep 19, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G01B5/28
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A tactile surface texture method including: measuring at least one force perceived by a force sensor during a relative movement of the sensor with respect to a surface to be characterized; calculating one or more time and/or frequency parameters of an output signal transmitted by the sensor representative of the previously measured force; determining a value of a tactile descriptor of multiple tactile descriptors through application of a continuous transfer function to the previously calculated parameters, the transfer function being previously determined by regression from a learning database associating, for each descriptor, plural values of the tactile descriptor with plural values of one or more time and/or frequency parameters calculated from measurements made by the force sensor on multiple test surfaces representative of values of the tactile descriptor in question.