Patent ID: 11864775
Assignee: UNIVERSITE PARIS XII—VAL DE MARNE
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. A device for assessing a solidity of a material comprising:
ancillary tool having opposite first and second ends, the second end being in the form of a point or blade,
an impactor suitable for striking the first end of the ancillary tool,
at least one sensor, and
a processing unit,
wherein the ancillary tool is adapted for being placed between a material and the impactor, with its second end in contact with the material, and for transmitting an impact force generated by the impactor to the material,
wherein the sensor is capable of measuring a quantity from among the impact force generated and a deformation of the impactor, and of supplying a measurement signal representing a variation in time of said quantity upon an impact,
wherein the processing unit is adapted for calculating, from the measurement signal, an indicator representative of the solidity of the material, and
wherein the indicator corresponds to the duration of a time window, a start of this time window being defined with respect to an instant corresponding to a first peak of maximum amplitude of the measurement signal and an end of this time window being defined with respect to an instant corresponding to a second peak of maximum amplitude of the measurement signal.