Abstract: A signal acquiring method is provided using a plurality of fasteners with sensing elements configured to generate electrical signals as a function of the operating conditions of a plurality of readers, and an acquiring system. The method involves generating one or more electrical signals by means of the sensing elements, mechanically connecting the readers to the fasteners, and transferring the signals to the acquiring system by means of the readers.

Abstract: A fixing element, a use of a sensitive element to detect a flow of heat on the inside of mechanical organs; wherein the fixing element, in particular a screw or a stud, has a body and a sensitive element, which is designed to detect a difference of temperature between a first and a second area of the body of the fixing element, so as to determine, as a function of said difference of temperature, a flow of heat that flows through the fixing element and the mechanical organ where it is installed.

Abstract: A sensor device and a related method for measuring the flow of a fluid and/or for detecting the presence of a substance have such respective structural and functional features as to allow reliable measurements at very reduced costs. The sensor device includes at least a temperature difference sensor based on the Seebeck thermoelectric effect and integrated in a sensor device support, together with a heating element also integrated in this support. A method for measuring the flow of a fluid and/or the presence or the level of a substance uses the sensor device.

Abstract: A sensor device and a related method for measuring the flow of a fluid and/or for detecting the presence of a substance have such respective structural and functional features as to allow reliable measurements at very reduced costs. The sensor device includes at least a temperature difference sensor based on the Seebeck thermoelectric effect and integrated in a sensor device support, together with a heating element also integrated in this support. A method for measuring the flow of a fluid and/or the presence or the level of a substance uses the sensor device.