Method for measuring the thickness of a layer of rubber-like material

12:

• The method according to claim 11, wherein the step of causing the sensitive element to be moved towards the layer of rubber-like material includes applying to the free face of the layer of rubber-like material a housing in which the sensitive element is installed.

13:

• The method according to claim 12, wherein the housing includes, in addition to the sensitive element, an electronic measuring device.

14:

• The method according to claim 11, wherein the sensitive element is a solenoid formed as one of:
• a printed circuit, a copper wire wound with a ferromagnetic support, and a copper wire wound without a ferromagnetic support.

16:

• The method according to claim 15, wherein the frequency of the alternating electrical signal is below a cut-off frequency of the sensitive element.

17:

• The method according to claim 15, further comprising a step of determining an appropriate excitation frequency of the sensitive element.

18:

• The method according to claim 11,
• wherein the sensitive element is formed from turns of a coil, and
• wherein the step of causing the sensitive element to be moved towards the layer of rubber-like material includes positioning the sensitive element in such a way that a plane parallel to the turns of the coil is parallel to a surface of the free face of the layer of rubber-like material.

19:

• The method according to claim 11, wherein an electrical conductivity of the adjacent reinforcement is such that a resistivity measured between two points located on two separate elements, or a resistivity measured between two points located on a same non-metallic element, is greater than one megaohm meter.

20:

• The method according to claim 11, wherein an electrical conductivity of the adjacent reinforcement is such that a resistivity measured between two points located on two separate elements, or a resistivity measured between two points located on a same non-metallic element, is greater than ten megaohm meter.