In an embodiment an electric circuitry includes at least a first delay chain of a plurality of delay elements and at least a second delay chain of a plurality of delay elements being arranged on a substrate, the respective delay elements of the at least one first and second delay chains are configured to provide a propagation delay time depending on strain applied to the substrate, wherein the delay elements of the at least one first delay chain have another orientation on the substrate than the delay elements of the at least one second delay chain, and a processing circuit configured to determine a magnitude of the strain applied on the substrate based on a first signal propagation delay time of the first delay chain and a second signal propagation delay time of the second delay chain.

A flexible display apparatus and a control method therefor. The flexible display apparatus comprises: a flexible display panel (10); a bending sensor (11), that is configured to sense bending information of the flexible display panel (10); and a processor, that is coupled to the bending sensor (11), configured to receive the bending information of the bending sensor (11), and determines whether the bending information is valid bending information, and if so, then a currently running application program is controlled according to the valid bending information to perform a corresponding operation. By bending the flexible display panel (10), an application program is controlled to perform a corresponding operation, achieving a convenient, accurate, and effective operation, and improving user experience.

A printed circuit board including electronic components, a carrier equipped with a network of conductor tracks electrically connecting the electronic components, and a plurality of strain gauges positioned on the carrier such that each one of the plurality of corners has a respective one of the plurality of strain gauges positioned closer to the one of the plurality of corners than to any other of the plurality of corners.

A sensor device has improved stability and includes: 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 an outer surface portion of the core in a coil form, an electromagnetic wave shielding layer for shielding the conductor from an extraneous electromagnetic wave, and an insulating layer having an electrical insulation function between the conductor and the electromagnetic wave shielding layer; 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; wherein the core material has various properties including a tensile modulus of 1 to 250 GPa and the core has a diameter of 0.08 to 0.6 mm.

A strain sensor resistor includes: a resistive element (thin-film strain-resistive layer) formed nearly at the center of an upper surface of an insulation substrate to be a base; and front surface electrodes layered and formed on either end part of the resistive element and electrically connected to the resistive element. The entire upper part of the resistive element and a part of the front surface electrodes are covered by a protective film (protective coating). Moreover, back surface electrodes electrically connected to the front surface electrodes are formed on either lower end part of the insulation substrate, and end surface electrodes are formed on either longitudinal end surface of the insulation substrate. The strain sensor resistor has a tip shape solder mountable on a circuit board etc. using the back surface electrodes.

Provided is a method for determining at least one characteristic of a boundary layer a wind turbine rotor blade, including capturing at least one movement of at least one flexible element of at least one sensor being attached to or being part of a surface of the rotor blade, determining the at least one characteristic of the boundary layer based on the at least one captured movement of the at least one flexible element. Further, a sensor device, a wind turbine and a device as well as a computer program product and a computer readable medium are suggested for performing the method.

Example systems, devices, and methods for structural strain monitoring that involve sensing fibers are disclosed. An example system includes a structural body and a sensing fiber that extends through the structural body and that exhibits an electrical resistance that varies with deformation of the sensing fiber. The system further includes a processing unit to monitor the electrical resistance of the sensing fiber, determine a structural strain experienced by the structural body based on the electrical resistance, and output an indication of the structural strain.

Disclosed herein is a strain gauge including a substrate, with a first Wheatstone bridge arrangement of resistors disposed on a first surface of the substrate, and a second Wheatstone bridge arrangement of resistors disposed remotely from the first Wheatstone bridge arrangement of resistors. The resistors of the first Wheatstone bridge arrangement are equal in resistance to one another, while the resistors of the second Wheatstone bridge arrangement are unequal in resistance to one another and unequal to those of the first Wheatstone bridge arrangement. The first Wheatstone bridge arrangement of resistors are electrically connected in parallel with the second Wheatstone bridge arrangement of resistors such that each resistor of the first Wheatstone bridge arrangement is electrically connected in parallel with a different resistor of the second Wheatstone bridge arrangement.

This invention is Motion Recognition Clothing [TM] which measures the motion and/or configuration of a person's body using an energy-conducting mesh with a plurality of energy pathways. Energy input components direct energy into the pathways at a first set of locations. Energy sensors measure energy flow through the energy pathways from a second set of locations. As the person's body moves, the mesh stretches, elongates, and/or twists, which changes the flows of energy through pathways. These changes are then analyzed to estimate the motion and/or configuration of the person's body.

A strain sensor comprising a conductive member having a plurality of elements arranged adjacent to one another, and a non-conductive and elastically deformable material encapsulating the conductive member, wherein, in an equilibrium state, compressive forces cause at least one of the plurality of elements to contact at least a portion of an adjacent element, and wherein, when a strain is applied, a resulting elastic deformation causes at least one of the plurality of elements to space apart from an adjacent element such that the contacted portion decreases or is eliminated. A multi-axis force sensor comprising a sensing array comprising at least two planar sensors arranged radially on a planar substrate in antagonistic pairs, and a compressible member positioned between the substrate and a central portion of the sensing array, the compressible member acting to displace the central portion of the sensing array away from the substrate.