G01L1/14

PRESSURE SENSOR AND ELECTRONIC DEVICE
20230041550 · 2023-02-09 ·

A pressure sensor has a convexly curved surface shape and includes: a capacitive sensor electrode layer including a plurality of sensing parts; a first reference electrode layer having elasticity and facing a first surface of the sensor electrode layer; a second reference electrode layer having elasticity and facing a second surface of the sensor electrode layer; an elastic layer having elasticity and provided between the first reference electrode layer and the sensor electrode layer; and a gap layer having elasticity and provided between the second reference electrode layer and the sensor electrode layer. The sensor electrode layer includes: a curved part; and a plurality of extension parts extending from a concavely curved side of the curved part. The extension parts include the sensing parts.

FORCE SENSING DEVICE WITH ISOTROPIC COMPLIANCE
20230040951 · 2023-02-09 · ·

Device with isotropic planar compliance comprising a floating body (2) positioned between a first (3) and second frame (4), said floating body having an extended portion (21) protruding through the first frame, at least a row of caged balls (5) supporting the floating body, at least one elastic element (6) positioned over the extended portion of the floating body, compressed between and connecting the floating body and the first frame. Said caged balls allow the at least one elastic element to laterally deform, so that their axis bends, while the ends of said at least one elastic element lay on two parallel planes, which remain at constant distance while sliding one with respect to the other. The device comprises also at least one displacement sensor (10), for measuring the displacement of the floating body with respect to the first or second frame.

Pallet system and a measuring component
11554897 · 2023-01-17 · ·

A pallet system (10) for transporting goods has a pallet (12) and a measuring component (14) located on top of the upper surface (18) of the pallet (12). The measuring component (14) comprises a first conductive layer (32) and a second conductive layer (34) spaced apart from each other forming a capacitor with a gap (36). At least one elastic element (30) is arranged within the gap, and a control unit (31) is electrically connected to the first conductive layer (32) and the second conductive layer (34), wherein the control unit (31) is configured to measure the capacitance of the capacitor. Further, a measuring component (14) is shown.

Proximity and three-axis force sensor

A proximity and three-axis force sensor based sensor may include a first taxel including a first electrode formed within a top layer configured in a serpentine pattern, a second electrode formed within a bottom layer, and a dielectric layer positioned between the top layer and the bottom layer and a second taxel including a first electrode formed within the top layer and having a first surface area, a second electrode formed within the bottom layer and having a second surface area, and a ground electrode formed within the top layer above the first electrode of the second taxel having a surface area greater than the first surface area of the first electrode of the second taxel. The second surface area may be different than the first surface area. A first edge of the first electrode may be vertically aligned with a first edge of the second electrode.

Proximity and three-axis force sensor

A proximity and three-axis force sensor based sensor may include a first taxel including a first electrode formed within a top layer configured in a serpentine pattern, a second electrode formed within a bottom layer, and a dielectric layer positioned between the top layer and the bottom layer and a second taxel including a first electrode formed within the top layer and having a first surface area, a second electrode formed within the bottom layer and having a second surface area, and a ground electrode formed within the top layer above the first electrode of the second taxel having a surface area greater than the first surface area of the first electrode of the second taxel. The second surface area may be different than the first surface area. A first edge of the first electrode may be vertically aligned with a first edge of the second electrode.

Method of manufacturing multi-layer electrode for a capacitive pressure sensor and multi-layer electrodes formed therefrom

A multi-layer electrode of a capacitive pressure sensor is manufactured by roll to roll printing a conductive layer onto a polymer layer and forming a mutual capacitance sensor layer of the capacitive pressure sensor, co-extruding a conductive polymer layer and a foam dielectric layer and forming a coextruded layer of the capacitive pressure sensor, and pressure rolling the mutual capacitance sensor layer and the coextruded layer together and forming the multi-layer electrode. The conductive polymer layer includes between about 2 wt. % to about 15 wt. % graphene and between about 0.01 wt. % and 5 wt. % of the carbon nanotubes. Also, the conductive polymer layer has a flexural modulus equal to or greater than 5,000 MPa and an electrical resistivity less than or equal to 10 Ohm/mm.sup.3, and the polymer layer and/or the conductive polymer layer is formed from recycled polyethylene terephthalate.

Sensing in tires for rolling resistance
11592358 · 2023-02-28 · ·

Described herein are systems and methods for determination of rolling resistance from a sensor or sensors in a tire or tires for application in smart cars to provide feedback to interested parties, such as Departments of Transportation or tire manufacturers.

Touch sensor detector system and method
11520454 · 2022-12-06 · ·

A touch sensor detector system and method incorporating an interpolated sensor array is disclosed. The system and method utilize a touch sensor array (TSA) configured to detect proximity/contact/pressure (PCP) via a variable impedance array (VIA) electrically coupling interlinked impedance columns (IIC) coupled to an array column driver (ACD), and interlinked impedance rows (IIR) coupled to an array row sensor (ARS). The ACD is configured to select the IIC based on a column switching register (CSR) and electrically drive the IIC using a column driving source (CDS). The VIA conveys current from the driven IIC to the IIC sensed by the ARS. The ARS selects the IIR within the TSA and electrically senses the IIR state based on a row switching register (RSR). Interpolation of ARS sensed current/voltage allows accurate detection of TSA PCP and/or spatial location.

Deformable body for force/torque sensor and sensor

A deformable body for a force/torque sensor which may be attached to robots formed with multiple axes and multiple joints includes a substrate in which a hole is formed, a disc disposed above the hole, and a plurality of hinges protruding from a side surface of the disc and connecting the disc and the substrate.

MATRIX PRESSURE SENSOR WITH NEURAL NETWORK, AND CALIBRATION METHOD

Matrix pressure sensor with neural network, and calibration method

Matrix pressure sensor (1), comprising: a matrix (2) of tactile pixels (10) at least some of which have a reciprocal crosstalk effect between them, a neural network (30) for processing an image (I.sub.P_MES) of the response from the sensor and providing a corrected image (I.sub.P_COR), this network having been trained from an augmented database (BD.sub.AUG) comprising: real homogeneous pressing data measured by applying a homogeneous pressure (P.sub.R) to at least some of the pixels, better still to all of the pixels of the matrix, and additional partial pressing data produced through simulation by applying binary masks (MAS) to the real homogeneous pressing data, so as to simulate partial pressing without a crosstalk effect with the pixels situated outside partial pressing areas.