G01L25/00

Compensated Mechanical Testing System

A mechanical testing system having a frame, and a stage for holding a sample. An arm for pressing a tool against a surface of the sample. A primary actuator is connected to the frame and applies a primary force and drives the tool relative to the sample, thereby causing the frame to flex. A displacement sensor measures a displacement value comprised of two components, the first component including a distance traveled by the probe into the sample as the primary force is applied, and the second component including a measure of a degree of flex of the frame as the primary force is applied. A compensating actuator is connected to the frame and applies a compensating force that reduces the second component of the displacement value.

Device and method for checking an assembly wrench

A method for checking an assembly wrench, having an integrated angular measuring device, includes: fixing the assembly wrench in a rotatable fixing device; activating the angular measuring device integrated in the assembly wrench; rotating the fixing device by at least one specified angle; reading off the angle of rotation measured by the angular measuring device integrated in assembly wrench; and comparing the angle of rotation measured by the angular measuring device integrated in the assembly wrench to the specified angle, by which the fixing device has been rotated.

Integrated electronic device for monitoring pressure within a solid structure
09778117 · 2017-10-03 · ·

The integrated electronic device detects the pressure related to a force applied in a predetermined direction within a solid structure. The device includes an integrated element that is substantially orthogonal to the direction of application of the force. First and second conductive elements are configured to face an operating surface. A measure module includes first and second measurement terminals which are electrically connected to the first and second conductive elements, respectively. A detecting element is arranged in the predetermined direction such that the operating surface is sandwiched between the first and second conductive elements and this detecting element. An insulating layer galvanically insulates the first and second conductive elements. A layer of dielectric material is sandwiched between the detecting element and the insulating layer, and is elastically deformable following the application of the force to change an electromagnetic coupling between the detecting element and the first and second conductive elements.

Integrated electronic device for monitoring pressure within a solid structure
09778117 · 2017-10-03 · ·

The integrated electronic device detects the pressure related to a force applied in a predetermined direction within a solid structure. The device includes an integrated element that is substantially orthogonal to the direction of application of the force. First and second conductive elements are configured to face an operating surface. A measure module includes first and second measurement terminals which are electrically connected to the first and second conductive elements, respectively. A detecting element is arranged in the predetermined direction such that the operating surface is sandwiched between the first and second conductive elements and this detecting element. An insulating layer galvanically insulates the first and second conductive elements. A layer of dielectric material is sandwiched between the detecting element and the insulating layer, and is elastically deformable following the application of the force to change an electromagnetic coupling between the detecting element and the first and second conductive elements.

Pressure data acquisition assembly

A method and assembly for acquiring pressure data. A pressure sensor is applied to a target surface on an individual. A calibrator and a processing element are in communication with the pressure sensor. Processing element receives pressure data and provides an integrated pressure value over a measurement time period. The integrated pressure value is compared to an alert value and to a change condition value. Where an alert value is exceeded, an alert is transmitted to an output device for display. Where a change condition value is exceeded, a measurement parameter of the pressure sensor is changed, or the calibrator is applied to the pressure sensor to recalibrate the pressure sensor to a recalibrated pressure range.

Pressure data acquisition assembly

A method and assembly for acquiring pressure data. A pressure sensor is applied to a target surface on an individual. A calibrator and a processing element are in communication with the pressure sensor. Processing element receives pressure data and provides an integrated pressure value over a measurement time period. The integrated pressure value is compared to an alert value and to a change condition value. Where an alert value is exceeded, an alert is transmitted to an output device for display. Where a change condition value is exceeded, a measurement parameter of the pressure sensor is changed, or the calibrator is applied to the pressure sensor to recalibrate the pressure sensor to a recalibrated pressure range.

METHOD AND SYSTEM FOR UNIVERSAL CALIBRATION OF DEVICES UNDER TEST
20220050003 · 2022-02-17 ·

Methods and systems include a universal, device-agnostic calibration process in which measured indications output by a device under test (DUT) (or corrected or converted indications derived therefrom) may be compared with calibration thresholds for any type of DUT to be calibrated. A complete, universal, and extensible calibration process is thus achieved that is capable of accommodating routine and complex calibration scenarios alike. A common set of statistics may be generated for all devices to be calibrated, without regard to the particular device under test, and statistics of the common set of statistics may be evaluated to determine the calibration state of the DUT. Additionally, the methods and systems disclosed herein provide for generating a comprehensive set of measurement records that may include some or all original observations, calculations, corrections, conversions, environmental factors, and measurement results, e.g., according to a standard, which allows for step-by-step auditing of every measurement performed.

Methods and systems for force sensor calibration

An implementation may involve causing a foot of a robot to orient in a first position, where the foot comprises a sole configured to contact a surface, where the sole comprises a first edge and a second edge, and where in the first position: (i) the first edge contacts the surface, and (ii) a zero moment point (ZMP) is located on the first edge; receiving, from a force sensor, (i) first force data indicative of a first force and (ii) first moment data indicative of a first moment; determining a calibration of the force sensor based at least in part on the first force data, the first moment data, and a distance between the ZMP and a measurement location on the robot; and while the robot is engaged in bipedal movement, controlling the bipedal movement of the robot based at least in part on the calibration.

Methods and systems for force sensor calibration

An implementation may involve causing a foot of a robot to orient in a first position, where the foot comprises a sole configured to contact a surface, where the sole comprises a first edge and a second edge, and where in the first position: (i) the first edge contacts the surface, and (ii) a zero moment point (ZMP) is located on the first edge; receiving, from a force sensor, (i) first force data indicative of a first force and (ii) first moment data indicative of a first moment; determining a calibration of the force sensor based at least in part on the first force data, the first moment data, and a distance between the ZMP and a measurement location on the robot; and while the robot is engaged in bipedal movement, controlling the bipedal movement of the robot based at least in part on the calibration.

Apparatus and means for starting of AC motors, algorithm for self-adapting motor start with soft-starter

The invention relates to a method of starting an electric motor (10) powered by an alternating power supply voltage, said method consisting of supplying current to the motor (10) with a delay t.sub.ret, during each period of the power supply voltage. The starting method comprises a first sequence in which the following steps are carried out during each n.sup.th period of the power supply voltage, where n is an integer number greater than 0: a) determine the value of a variation of a resistance of the electric motor during the previous n periods of the power supply voltage; b) compare said value of the variation of the determined motor resistance with a first threshold resistance value; c) if the value of the variation of the motor resistance is less than the first threshold value, reduce t.sub.ret. The invention also relates to a starter device and a computer program.