There is a viscoelastic strain sensor that includes a sensing layer including a viscoelastic material, the viscoelastic material including a viscoelastic hydrogel and a conductive nanofiller. The viscoelastic material has a fractional resistance change that increases with an increase of an applied tensile strain, and the viscoelastic material has a fractional resistance change that decreases with an applied compressional strain.

A biometric sensor 1 according to one aspect of the present disclosure includes: a fixed member 20 having a frame 21 which is ring-shaped; and a first strain sensor element 31 and a second strain sensor element 32, each of the first strain sensor element and the second strain sensor element being string-shaped or strip-shaped, and the first strain sensor element and the second strain sensor element being stretchable and recoverable in a lengthwise direction of the first strain sensor element and a lengthwise direction of the second strain sensor element, wherein the first strain sensor element 31 and the second strain sensor element 32 extend across the frame 21 and are disposed such that the first strain sensor element 31 and the second strain sensor element 32 cross each other, and wherein the frame 21 is configured to be deformable at least in the lengthwise direction of the first strain sensor element 31 and the lengthwise direction of the second strain sensor element 32.

An aerosol generating device comprises a housing defining a cavity for receiving an aerosol generating substance, a controller and a rechargeable battery positioned in the housing (16). The controller is configured to detect expansion of the rechargeable battery in the housing.

The present disclosure provides a motion detection member for detecting motion of a wearing body, the motion detection member including: a wearable part that is to be worn on the wearing body, the wearable part including an expanding/contracting portion that is configured from an expandable/contractible fabric material that expands/contracts as a result of the motion of the wearing body; and a wiring electrode part including: a wiring part provided at at least a portion of the expanding/contracting portion of the wearable part, the wiring part including a first wiring part including a conductive linear body and a second wiring part including a conductive linear body; and an electrode part including a first electrode part electrically connected to the first wiring part and a second electrode part electrically connected to the second wiring part.

A sensor may include a deformable sensing element having a deformable conductor arranged to deform in response to deformation of the sensing element, wherein the deformation of the sensing element is selectively controlled. The sensing element may be selectively controlled by a restraining element. The restraining element may control the deformation of the sensing element by distributing forces applied to the sensing element. The sensing element may include a deformable body with the deformable conductor arranged to respond to elongation of the deformable body. The deformable conductor may include a conductive gel. A sensor may include a deformable body, a deformable conductor arranged to deform in response to deformation of the deformable body, and a restraining element arranged to selectively control the deformation of the deformable body.

A measurement device is disclosed for measuring a change in one or more of a circumference or a perimeter of at least a portion of an object having a surface. The measurement device includes a first part for attachment to the object, a second part having a first portion moveable relative to a first portion of the first part, a determining device for determining a displacement of the first portion of the second part relative to the first portion of the first part caused by the object changing, and a biasing device for biasing the first part and the second part towards engagement. The measured displacement is for use in determining the change in one or more of a circumference or a perimeter of the object.

A misalignment sensing system for a molding structure and a method for using same. The molding structure includes a first component and a second component, at least one of the components being selectively repositionable between a closed configuration of the mold structure and an open configuration of the mold structure. The misalignment sensing system includes an alignment member including a male portion coupled to and extending from the first component of the molding structure, and a female portion defined in the second component of the molding structure, the female portion being configured to receive the male portion when the molding structure is in a closed configuration; and at least one sensor connected to one of the male and female portions and being configured to detect a deformation of any one of the male portion and the female portion, the deformation being induced by a misalignment of the molding structure.

An installation method and an apparatus of a strain gauge sensor are capable of driving an object to be measured to generate a deformation signal by a pushing/pulling force. At least two strain gauge sensors are installed on surfaces with different amounts of deformation and at an installation location of an electrical vehicle according to the installation method. The installation method includes Method 1: When a manual pushing/pulling force is applied, the installation location is deformed and the deforming action force is directly proportional to the pushing/pulling force. Method 2: When the pushing/pulling force is applied, the vehicle deforming direction at the installation location is independent to the pushing/pulling force moving direction. Method 3: The strain detecting direction of the strain gauge sensor is the same as the vehicle deforming direction at the installation location. Therefore, pulling or driving force data can be measured accurately.

A sensing device to monitor a person. The sensing device includes a sensing strip and control unit that are attached to an article. The sensing strip has one or more electrical properties that change when the shape of the sensing strip changes. The control unit receives data from the sensing strip and transmits one or more of the data and processed data to a remote node.

A sensor pressing member to which a sensor is attached such that the sensor is exposed toward a measurement target. The sensor pressing member presses the sensor in a first direction relative to the measurement target to bring the sensor into contact with the measurement target. The sensor pressing member includes an elastic body positioned opposite the measurement target with the sensor in between in the first direction. The elastic body includes a cavity therein.