A sensor-enabled geogrid system for and method of monitoring the health, condition, and/or status of pavement and vehicular infrastructure is disclosed. In some embodiments, the sensor-enabled geogrid system includes a sensor-enabled geogrid that further includes a geogrid holding an arrangement of one or more sensors. The sensor-enabled geogrid system further includes a communication means or network for collecting information and/or data from the sensor-enabled geogrid about the health, condition, and/or status of the pavement and vehicular infrastructure. Further, a method of using the presently disclosed sensor-enabled geogrid system for monitoring the health, condition, and/or status of pavement and vehicular infrastructure is provided.

A device that includes a piece of armor made from a material that has a domain of plastic deformation under bad before breaking and an elastic deformation domain. The plastic deformation domain represents less than 1% of the elastic deformation domain. The device includes a deformation sensor fixed to the piece of armor and configured to deform plastically under the effect of at least a stress applied to the piece of armor and leading to damage of the piece of armor.

Continuous microfluidic dilatometry devices and methods are provided for activity monitoring with ultra-high sensitivity. Corner flow in capillary channels is used to detect the resistance change in microfluidic circuits filled with ionic liquids. The conversion of mechanical input (e.g. strain) to an intermediary domain, namely liquid displacement, allows a large enhancement in sensor performance. Embodiments are suitable for tracking skin deformations that occur as a result of human movements.

A system and method for providing a fluid flow strain gauge that may be mounted inside a pipe and connected to a base unit that uses capacitive or resistive technology to determine a direction and a rate of flow of a fluid through the pipe by measuring the force applied to the strain gauge by the flow of fluid.

A system for measuring a deformation of a structure configured to be installed on an aircraft includes deformation sensor means configured to be associated with the structure and to assume an electrical resistance value indicative of the deformation of the structure and having two short-circuited electrical connection terminals to recreate a closed circuit, magnetic field excitation means having a laser generator and configured to generate a magnetic field concatenated with the closed circuit to generate an induced current, electromagnetic radiation, transmission means having an antenna and configured to emit an electromagnetic radiation, value of the electromagnetic radiation being a function of the electrical resistance of the deformation sensor means, electromagnetic radiation receiving means having an antenna and configured to receive the electromagnetic radiation transmitted by the electromagnetic radiation transmission means, and control means for determining the deformation of the structure as a function of the value of electromagnetic radiation received.

In a management system for an attachment state of an attachment object, a sensor capable of detecting a value equivalent to stress of stress loaded, or a predetermined value from which the value equivalent to stress can be calculated, a washer storage unit storing identification information of a sensing washer, and a washer control unit transmitting the value equivalent to stress and the identification information of the sensing washer via a communication unit, are provided in the sensing washer between a bolt and a nut that attach an attachment object to a structural object. A management processing device acquires the value equivalent to stress and identification information of the sensing washer transmitted from the sensing washer, and presents the value equivalent to stress of the sensing washer of the identification information, or a corresponding stress value, as relational information with respect to a reference value stored in a storage unit.

A diagnostic system for a secondary battery includes a ripple current circuit configured to apply a ripple current of a predetermined frequency to the secondary battery, a strain gauge configured to acquire strain of the secondary battery in association with the application of the ripple current of the predetermined frequency, and an electronic control unit configured to diagnose whether or not the secondary battery is a regular product.

A detection device detects a mechanical deformation of a high-voltage accumulator of a motor vehicle, and includes: a sensor element, which senses an electrical measurement variable, wherein the sensor element is substantially flat and is attached at least partially to a first component of the high-voltage accumulator; and an evaluation device for analyzing the electrical measurement variable between the sensor element and a second component of the high-voltage accumulator and for outputting a corresponding warning on the basis of the electrical measurement variable, wherein at least one region of the surface of the second component is electrically conductive.

An estimating device estimates a target physical amount by a learned model that is learned by using as learning data a plurality of at least three physical amounts, which are of vary in accordance with deformation at a member deforming linearly or non-linearly. The learned model is a model that has been subjected to learning so as to output the target physical amount from inputs two physical amounts of an object of estimation that correspond to at least two physical amounts other than the target physical amount.

A flexible differential strain sensor, system, and method includes a deformable substrate having a first axis and a second axis different than the first axis and a first sensing element and a second sensing element. The first and second sensing elements are comprised of conductive gel. The first sensing element is arranged to sense strain in the deformable substrate along the first axis. The second sensing element has a first portion arranged to sense strain in the deformable substrate along the first axis and a second portion arranged to sense strain in the deformable substrate along the second axis. The second sensing element is arranged to cancel at least a portion of the stimulus sensed by the first sensing element in the along the first axis.