A method includes measuring, using at least one sensor, strain on a nail plate of a subject, wherein the at least one sensor outputs a data stream corresponding to the measuring, communicating the data stream to a receiver, and interpreting, by the receiver, the data stream to determine a parameter of interest of the subject.

A sensor device having: a sensor member having a core using a core material having a residual strain at 2% elongation of 0.4% or less, a conductor which has an electrical resistance of 1 kΩ/m or less, and which is wound round the outer surface portion of the core in a coil form, and an electromagnetic wave shielding layer for shielding the conductor from an extraneous electromagnetic wave; and a measuring means for detecting an electric signal from the sensor member to measure an elongation of the sensor member based on a change of the electric signal.

A chip for gene sequencing and a gene sequencing method are disclosed. The chip for gene sequencing includes: a body, including an accommodating chamber and a temperature testing element, wherein the temperature testing element is configured for testing a temperature variation amount in the accommodating chamber.

A measurement device for measuring a change in the size and/or shape of at least a portion of an object having a surface, the device including: 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; and 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, where-in the displacement is for use in measuring the change in the size and/or shape of the object.

A strain sensor can include a resistor, a first electrical contact at a first end of the resistor, and a second electrical contact at a second end of the resistor. The resistor can be formed of a matrix of sintered elemental transition metal particles interlocked with a matrix of fused thermoplastic polymer particles.

Embodiments provide a sensor including a substrate, one or more fragmented carbon nanotube compositions embedded in the substrate, wherein the carbon nanotube compositions include one or more carbon nanotubes, and one or more conductive devices affixed to one or more sides of the fragmented carbon nanotube compositions with an affixation agent. Embodiments further provide a method of fabricating a sensor including embedding a carbon nanotube composition in a substrate, wherein the carbon nanotube composition includes one or more carbon nanotubes, and fragmenting the carbon nanotube composition.

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.

The present disclosure is related to a flexible display panel. The flexible display panel may include a display substrate, a plurality of pixel units arranged in an array on the display substrate, and at least a strain sensor on the display substrate. The strain sensor may be arranged corresponding to a region comprising at least one of the plurality of pixel units. The strain sensor may be configured to detect deformation in the region comprising at least one of the plurality of pixel units and to generate a detection signal.

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 method of estimating a topography of at least first and second parts of a body may involve: causing at least one processor circuit to receive at least one signal representing at least one measurement of deformation of at least a portion of the body; causing the at least one processor circuit to associate the deformation with relative positions of at least the first and second parts of the body; and causing the at least one processor circuit to produce at least one output signal representing the relative positions of at least the first and second parts of the body. Systems are also disclosed.