Seb S.a.

Tefal S.a.

Centre Technique Des Industries Mecaniques

Didier Anthoine-Milhomme

Michel Sarrazin

Bernard Pitaud

Benoit Linglin

A sensor () for measuring a tightening force applied on a screw-assembly member (). The measurement sensor includes a ring and an electronic device comprising a longitudinal support strip having two opposite ends. The support strip is installed on a flat surface of the ring. The electronic device () includes a first circuit capable of generating a signal representative of a tightening force applied in a tightening direction on one of the two opposing faces; a second circuit capable of generating a signal representative of the distance of the applied force from the center of the ring in a first direction perpendicular to the tightening direction; and a third circuit capable of generating another signal representative of the distance of the applied force from the center of the ring in a second direction perpendicular to the tightening direction.

Sensor for measuring a tightening force applied on a screw-assembly member

The invention relates to a weight sensor comprising strain gauges which are deposited in thick films on a support (). The support is made from an electrically-insulating material which is intended to be applied to a metallic body () that is essentially subject to bending. According to the invention, the support () comprises a ceramic material which has a Young's modulus Ethat is equal to or less than that Eof the biased metallic body () and which is applied to the latter by means of gluing.

Weight sensor

A weight sensor includes a test body in the form of a bar carrying strain gauges, the bar bending due to the effect of the weight to be measured. The bar extends inside a frame, one end of the bar being joined to the frame, its other end being free with respect to the frame and having a bearing surface designed to be subjected to a force in the opposite direction to a reaction force applied to a bearing surface of the frame. The entire sensor is made in one piece in the form of a flat block.

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Albens, France

Didier Anthoine-Milhomme