Abstract: Disclosed is a method for counting events occurring during a period T carried out by a mechanical counter including two toothed wheels with the same pitch, the occurrence of an event causing the rotation of each wheel by an angle corresponding to the pitch of the teeth thereof, the method including: counting or calculating, for each wheel at the end of T, the difference in the number of teeth between the initial and final position thereof, the step being at least partially carried out either by an optical unit, requiring the presence on each wheel of at least one marker, or by a unit for measuring the angular displacement of each wheel and associated calculation unit; and calculating the number of occurred events N in accordance with the difference between the values counted or measured and in accordance with the number of teeth of the wheels.

Abstract: The disclosed micro-sensor includes: a substrate including a first portion and a second portion; a third portion and fourth portion provided between the portions and connected to the first portion and the second portion respectively by an elastic member; detection and a counter including: a counting gear, a third beam capable of meshing with the gear, an amplifier for the value of a relative movement between the portions and including: a first beam attached at one end thereof to the third portion and at the other end thereof to a plate, a second beam attached at one end thereof to the fourth portion and at the other end thereof to the plate, the third beam being attached on one side to the plate and including a tooth capable of meshing with the gear.

Abstract: Disclosed is a method for counting events occurring during a period T carried out by a mechanical counter including two toothed wheels with the same pitch, the occurrence of an event causing the rotation of each wheel by an angle corresponding to the pitch of the teeth thereof, the method including: counting or calculating, for each wheel at the end of T, the difference in the number of teeth between the initial and final position thereof, the step being at least partially carried out either by an optical unit, requiring the presence on each wheel of at least one marker, or by a unit for measuring the angular displacement of each wheel and associated calculation unit; and calculating the number of occurred events N in accordance with the difference between the values counted or measured and in accordance with the number of teeth of the wheels.

Abstract: The disclosed micro-sensor includes: a substrate including a first portion and a second portion; a third portion and fourth portion provided between the portions and connected to the first portion and the second portion respectively by an elastic member; detection and a counter including: a counting gear, a third beam capable of meshing with the gear, an amplifier for the value of a relative movement between the portions and including: a first beam attached at one end thereof to the third portion and at the other end thereof to a plate, a second beam attached at one end thereof to the fourth portion and at the other end thereof to the plate, the third beam being attached on one side to the plate and including a tooth capable of meshing with the gear.

Abstract: The present invention relates to the field of microsensors, and particularly to a passive and reversible deformation sensor, specifically cycles of deformations in a direction OX of a structure, specifically during cycles of temperatures or mechanical stresses to which the structure is subjected, this sensor including elements (4, 5, 6) for detecting and, preferably, counting cycles of variations in the distance between two points or areas of a structure, these elements including a support having first and second portions (41, 44) attachable to, respectively, either of the two points or areas of the structure, wherein the detecting elements are associated with each of the first and second portions of the support, sensor characterized by in that the detecting elements include elements (541, 542, 543, 551, 552, 553, 561, 562, 563) for distinguishing between at least two different thresholds of cycles of variations in distance.

Abstract: The present invention relates to the field of microsensors, and particularly to a passive and reversible deformation sensor, specifically cycles of deformations in a direction OX of a structure, specifically during cycles of temperatures or mechanical stresses to which the structure is subjected, this sensor including elements (4, 5, 6) for detecting and, preferably, counting cycles of variations in the distance between two points or areas of a structure, these elements including a support having first and second portions (41, 44) attachable to, respectively, either of the two points or areas of the structure, wherein the detecting elements are associated with each of the first and second portions of the support, sensor characterized by in that the detecting elements include elements (541, 542, 543, 551, 552, 553, 561, 562, 563) for distinguishing between at least two different thresholds of cycles of variations in distance.

Abstract: The invention relates to the area of armor and in particular to multilayer armor having a composite layer containing a first material made of a metal or an alloy and a second material where the second material is porous and in that the metal or metal alloy is infiltrated into some or all of the pores of the second material and characterized in that a cage made of plates having openings contains the first and second materials and in that the cage is itself coated, at least partly, with the infiltration metal or alloy, the melting point of the cage material being higher than that of the infiltration metal or alloy.

Abstract: The invention relates to the area of armor and in particular to a multilayer armor plate having a composite layer (15, 25, 35) containing a first material made of a metal or an alloy and a second material (1, 11, 21, 31) where the second material is porous and in that said metal or said metal alloy is infiltrated into some or all of the pores of said second material (1, 11, 21, 31), and characterized in that a cage (4, 14, 24, 34) made of plates (5) having openings (6) contains said first and second materials and in that the cage (4, 14, 24, 34) is itself coated, at least partly, with said infiltration metal or alloy, the melting point of the cage material being higher than that of the infiltration metal or alloy.