Material testing apparatus with non-contact sensor
AssigneeNanovea, Inc.
InventorPierre Leroux
Life of this patent
Estimating the term…
Abstract
A non-contact sensor is attached to the indenting module with its working range encompassing the tip of the indenter. The sensor directly measures penetration depth of the indenter during scratch, wear or instrumented hardness testing. During the test, the non-contact sensor records the height of the surface as the indenter penetrates the surface of the testing specimen.
Claims20
A head assembly for a material testing machine, the head assembly comprising a load assembly, the load assembly comprising a load sensor that is connected to an indenter, the indenter and the load sensor being connected along a sensing axis such that loads applied to the indenter along the sensing axis can be detected by the load sensor, and a non-contact sensor for measuring displacement of the non-contact sensor along the sensing axis with direct reference to a surface of a test sample, the non-contact sensor being secured to the load assembly, and the head assembly being moveable along the sensing axis, wherein the non-contact sensor can be adjusted along a first axis that is substantially parallel to the sensing axis, along a second axis that is substantially normal to the first axis and rotationally relative to the second axis.
A head assembly for a material testing machine, the head assembly comprising a load assembly, the load assembly comprising a load sensor that is connected to an indenter, the indenter and the load sensor being connected along a sensing axis such that loads applied to the indenter along the sensing axis can be detected by the load sensor, and a non-contact sensor being secured to the load assembly, and the head assembly being moveable along the sensing axis, wherein the non-contact sensor comprises a white light sensor.
A head assembly for a material testing machine, the head assembly comprising a load assembly, the load assembly comprising a load sensor that is connected to an indenter, the indenter and the load sensor being connected along a sensing axis such that loads applied to the indenter along the sensing axis can be detected by the load sensor, and a non-contact sensor being secured to the load assembly, and the head assembly being moveable along the sensing axis, wherein the load sensor comprises a load cell, wherein the load cell comprises a fatigue rated minibeam load cell.
Dependencies are inferred from the claim text.