Abstract: An apparatus correctly measures motion characteristics a head gimbal assembly exhibits when turned in a radial direction of a hard disk. The apparatus includes an assembly support to fixedly support the head gimbal assembly on a center axis that corresponds to a rotation axis around which the head gimbal assembly is turned in actual use, a disk drive to rotatably support the hard disk and turn around a turn axis that is concentric with the center axis on which the head gimbal assembly is fixedly supported, and a turn unit to turn the disk drive around the turn axis, thereby creating a relative turn of the head gimbal assembly with respect to the hard disk.

Abstract: Sensors for outputting signals indicative of a rate of change of torque experienced by a magnetized member in response to a change in torque experienced by the member are described. Such sensors include at least one sense element capable of detecting a change in a magnetic parameter of a magnetized region of the member positioned proximate to the sense element in response to a change in torque applied to the member. Devices for detecting and/or measuring rates of changes in or of torque that employ one or more of these sensors are also described, as are various applications for such devices.

Abstract: A bearing durability test for automotive axle lubricant has been devised to assess lubricant requirements for bearing durability. Although various tests exist for differential lubricants to test for gear wear and other factors, the applicant has assessed a need and met that need with a bearing durability test and test rig apparatus.

Abstract: Sensor arrangement including a torque sensor for measuring the torque acting on a first shaft, the sensor arrangement having a rotational angle index unit which is designed in such a manner that it can detect and/or identify the angular position of the first shaft with respect to a defined rotational angle and/or defined rotational angle range.

Abstract: A torque sensing arrangement has a set of strain sensors, such as strain gauges, mounted to an adapter that can be mounted to a chain ring of the crank set of a bicycle wheel. The adapter may have an annular body that can be used to retrofit the original crank set of a bicycle to have torque sensing components without having to replace the chain rings or the crank arm of the crank set. Together with angular velocity measurements, the measurements of the strain sensors may be used to calculate the amount of work or power exerted by the cyclist to propel the bicycle.

Abstract: A fixture for a torque meter includes a bearing having a cylindrical stator and a rotor, two or more arms, and two or more elastic members. The cylindrical stator defines a through hole therein. The rotor is rotatably received in the through hole and is configured for holding the torque meter. The at least two arms are respectively connected to two opposite sides of the cylindrical stator. Each of the elastic members elastically supporting a corresponding arm, a compression direction and a rebound direction of the elastic members are parallel to a rotation axis of the rotor.

Abstract: The present disclosure is related to a method and a measuring device adapted for determining a rotational position of at least one rotor blade of a wind turbine. The method includes a step of measuring a gravity induced blade moment of the at least one rotor blade. Then, an actual rotational position of the rotor blade is determined from the measured gravity induced blade moment.

Abstract: The cable lift system provides assistance to movement of a flexibly suspended payload actuated by operator input into one or more sensing devices attached to the payload. The sensing device is configured to collect information about the typical push-pull and lift-lower motions of an operator moving the payload horizontally and/or vertically, such that the operator's input to the sensor is intuitive and is provided in a manner which is substantially transparent to the operator. The assist mechanisms included in the system are actuated by a controller processing signals received from the one or more sensing devices on the payload. Movement assistance is provided such that the manual effort required by the operator to overcome the inertia of the payload in a starting or stopping event is substantially relieved, thus minimizing the ergonomic impact of the starting and stopping events on the operator.

Abstract: A device for checking the seal-tightness of closure caps on medical hollow bodies has a drive, a retaining element for the hollow body, and a retaining device for the closure cap. The retaining device is pivotably supported relative to the retaining element. The device further includes a sensor for the relative rotation of the retaining device with respect to the retaining element. A torque may be applied to the closure cap by the drive, the retaining element, and the retaining device. A hollow body and a closure cap are gripped by the retaining device and the retaining element from the same side, as viewed along the longitudinal axis of a hollow body.

Abstract: A valve system includes a valve and a controller that controls the valve. The valve includes a valve body, and a motor configured to deliver a torque to the valve body to cause the valve body to move between an open position and a closed position. The controller is configured to drive the motor by applying a current to the motor. The controller is configured to measure the torque delivered by the motor to the valve body, compare the calculated torque with a threshold value, and diagnose a need by the valve system for preventive maintenance when the calculated torque is substantially equal to the threshold value. The threshold value represents substantially the maximum amount of torque available from the stepper motor.

Abstract: An apparatus for regulating the functioning of a patient's organ or duct includes an elongated member having a first end and a second end. A fastener is disposed on the first end of the elongated member. The fastener is configured to engage the second end of the elongated member so that the elongated member forms a loop around the organ or duct. A tension element is disposed for movement within the elongated member. A drive element is associated with and engages the tension element for causing the tension element to control the tension applied by the elongated member against a patient's body organ or duct. A load monitor ensures that excessive pressure is not applied to a patient's body organ or duct.

Abstract: The disclosed embodiments relate to a fuel line valve for an aircraft, that includes a shell capable of rotation inside the valve body and connected to a driving shaft driven by an electric actuator. The valve further includes a torque generation means and position detection means. The torque generation means are connected to the shell and generate a torque that varies based on the position of said shell in the valve body on the driving shaft. The position detection means provide electric signals characterizing the positions of said driving shaft. The disclosed embodiments also relate to a method for diagnosing the operation of such a valve in order to detect a failure during the operation thereof, and to a device for implementing said method.

Abstract: A testing device for a torque converter having a turbine portion 2 and a stator portion 3, including a turbine shaft 4 rotatably supported by a first support portion 6, and a stator shaft 9 concentrically disposed on an outer circumferential side of the turbine shaft 4 and axially moveably and non-rotatably supported by a second support portion 8. The turbine shaft 4 has a central oil passage 4b and a splined portion 4a on the outer circumferential periphery which is engaged with a splined portion 2a of the turbine portion 2 when the turbine shaft 4 is axially downwardly moved. The stator shaft 9 has a splined portion 9d on the outer circumferential periphery which is engaged with a splined portion 3a of the stator portion 3 when the stator shaft 9 is axially downwardly moved. A spring 11 is provided, which biases the stator shaft 9 toward the torque converter.

Abstract: Disclosed is a torque angle sensor and an electronic power steering apparatus having the torque angle sensor, which includes an upper case, an upper side of which is assembled with a sensor housing, a rotor assembled with an inside of the upper case, the rotor fitted around an outer surface of the output shaft extending through the rotor and assembled with an inside of the upper case, a lower case, a lower side of which is assembled with a spacer cover, and a middle case assembled between the upper case and the lower case. The upper case includes holding parts opposed to each other and formed on an upper surface of the upper case, which is assembled with the sensor housing, and a seating spring protruding downward with inclination from an end of one of the holding parts and elastically bent when the upper case is assembled with the sensor housing.

Abstract: Systems, methods and machine readable media related to determining a condition of an exercise machine belt are disclosed. An example system includes a sensor to detect an event related to the exercise machine belt. The example system also includes a counter to selectively change a count based on the event as well as an output device to output a notification associated with the condition of the exercise machine belt based on the count.

Abstract: A torque monitoring apparatus for monitoring torque between a driving structure rotating about a first axis and a driven structure rotating about a second axis. The torque monitoring apparatus includes a piston and cylinder assembly. The piston is received in an aperture defined by the cylinder. At least one of the piston and the cylinder is operable for connection to one of the driving structure and the driven structure and rectilinearly moveable along the first axis or the second axis. The aperture is centered on the axis of rectilinear movement.

Abstract: A control system for a vehicle having first and second wheels is provided that includes a differential apparatus adapted to distribute torque between the first and second wheels and a traction controller for controlling operation of the differential apparatus from vehicle launch up to a predetermined vehicle speed. The traction controller is configured to engage the differential apparatus in a first operating state according to at least one vehicle operating parameter indicative of a low traction operating condition and to further control engagement of the differential apparatus in a second vehicle operating state during the low traction operating condition according to a difference between an actual vehicle yaw rate and a predetermined target vehicle yaw rate. The control system also includes a stability controller for controlling engagement of the differential apparatus at or above the predetermined vehicle speed.

Abstract: A torque sensor for a steering wheel with a center axis has an input member, an output member, the input and output members being rotatable about the common center axis, and a spring member that is arranged in a flow of force between the input member and the output member, the spring member is configured as a flat spring member extending in a plane perpendicular to the center axis.

Abstract: Techniques are provided for controlling an exoskeleton actuator at a joint of a human-exoskeleton system by receiving system parameters for the human-exoskeleton system, receiving generalized coordinates for the human-exoskeleton system, and determining an equivalent joint torque for the exoskeleton actuator to compensate for a selected force. While providing partial or complete compensation of selected gravitational and external forces, one embodiment of the present invention mitigates the amount of interference between voluntary control and assist control, thereby allowing humans to quickly humans adapt to an exoskeleton system.

Abstract: An orthopedic simulator is provided with a plurality of test stations for each holding a test specimen. A plurality of load actuators are provided, with a respective load actuator for each of the test stations. The load actuators are substantially frictionless and configured to apply loads to the test specimens at the test stations.

Abstract: A column tube switch module is radially and axially fixed to a column tube and is supported at the same time on a bearing arranged on the steering spindle. A centering device secures a stator radially to the column tube when a force is acting coaxially on the longitudinal axis of the steering spindle. A steering angle sensor is provided whose fixed part is connected to the stator-end bearing while its rotating part is held so as to be capable of being driven by the steering wheel hub.

Abstract: A screwing equipment that comprises at least one rotary member mounted in a tool body and capable of producing at least one vibrational frequency representing a wear condition of said rotary member(s). Such screwing equipment further comprises means for measuring said vibrational frequencies designed to communicate with means for processing, said measurement enabling same to be compared to at least one reference frequency in order to determine said wear condition.

Abstract: An apparatus for measuring three-dimensional spatial locations of pipes and other features in manholes and similar structures. A laser distance meter or other electronic distance measuring device is supported centrally in the manhole opening by a pivot assembly that permits the device to both rotate in the horizontal plane and pivot in the vertical plane. Electronic angle sensors record the distance and orientation of the laser distance meter at each measurement point, from which the three-dimensional spatial location of the pipe or other feature is then calculated.

Abstract: A torque measuring device for measuring the torque of a rotatable shaft. A sensing unit senses the torque on the rotatable shaft. The sensing unit is disposed on the outer surface of the rotatable shaft. A reporting unit is configured to report the torque applied to the rotatable shaft to a central control unit. The reporting unit is mounted at an end of the rotatable shaft.

Abstract: An ergonomic, self contained hand-held thread inspection tool is power driven, which uses current draw as a surrogate for torque to initiate automatic reversal and gage withdrawal in case of jamming. The distal end carries the thread gage attached to a motor-driven spindle. A thread depth collar sleeve, adjustable by manual turning, concentrically surrounds the thread gage. When threaded into a blind hole or onto a protruding stud and operated, the distal end of the thread depth collar sleeve comes in contact with a part, pushing it against spring force. This movement is internally sensed, causing an indicator to flash, signaling “test OK”, while automatically reversing the spindle to withdraw the thread gage. If during the forward excursion of the thread gage a torque exceeding the pre-set torque limit is encountered, a buzzer is sounded signaling an over-torque problem and the spindle is simultaneously reversed for automatic gage withdrawal.

Abstract: Apparatus and methods for measuring in-situ applied torque in tubular operations. A torque cylinder has a first end and a second end. A torque rod is at least partially contained in the torque cylinder and is coupled to the first end of the torque cylinder. The torque rod extends longitudinally outward from the second end of the torque cylinder. A strain gauge is connected to the torque rod at a predetermined distance from the first end of the torque cylinder. The strain gauge is configured to measure in-situ the applied torque between two tubular drill string segments each coupled to a respective one of the torque cylinder and the torque rod.

Abstract: A device for determining the rotation angle of a shaft in an aircraft, the device having a shaft and a motor operable to rotate the shaft to operate a component and to detect first rotation data of the shaft. The device also includes a position pickup unit designed to detect second rotation data of the shaft, and a synchronization unit for synchronizing the first rotation data with the second rotation data.

Abstract: A fiberoptic multi-parameter sensing system for monitoring turbomachinery system shaft static and dynamic torques, vibration modes and associated operation status includes a multi-furcated fiber bundle based optical splitter configured to transmit light to a surface of at least one turbomachinery system shaft through a plurality of optical fiber bundles disposed at a plurality of locations in proximity to the surface of the at least one shaft, in which the plurality of locations together are arranged in a substantially axial direction between the ends of the at least one shaft.

Abstract: The present invention relates to a torque sensor comprising a torsion spring having first and second sides which are rotated with respect to one another by a torque applied to the torque sensor, wherein a mechanical coupling apparatus is provided between the first and second sides of the torsion spring and includes a movement element which is moved in the axial direction by a rotation of the first side with respect to the second side. In addition, a measuring apparatus is provided for the measurement of the axial movement of the movement element.

Abstract: A fixture for a torque meter includes a bearing having a cylindrical stator and a rotor, two or more arms, and two or more elastic members. The cylindrical stator defines a through hole therein. The rotor is rotatably received in the through hole and is configured for holding the torque meter. The at least two arms are respectively connected to two opposite sides of the cylindrical stator. Each of the elastic members elastically supporting a corresponding arm, a compression direction and a rebound direction of the elastic members are parallel to a rotation axis of the rotor.

Abstract: A system for determining wind turbine tower base torque loads including a controller configured to determine a torque load of a base of a tower of a wind turbine according to a computation of an effective height of the wind turbine multiplied by a wind force upon a rotor of the wind turbine, and generate a control signal representing the torque load. A method for determining wind turbine tower base torque loads including determining a torque load of a base of a tower of a wind turbine according to the foregoing computation, and generating a control signal representing the torque load.

Abstract: Methods, apparatuses and systems directed to calculation of a reel motor torque constant (“KT”). In one implementation, calibration logic energizes supply and take-up reel motors to wind tape from a supply reel to a take-up reel. The calibration logic, during winding, selectively disengages the supply reel motor and measures one or more attributes of the supply reel motor, such as the resulting voltage observed at the winding terminals of the supply reel motor and the angular velocity of the supply reel motor during the period of disengagement. The calibration logic then calculates KT based on the observed attributes.

Abstract: A rotation angle and torque detection apparatus includes: a target having magnetic poles magnetized at an outer circumference face so that the magnetic poles have alternately-different polarities and the target can be rotated multiple times; and a detector that is positioned to have a fixed distance from the target in a radial direction of the target and to have a fixed distance from the center of lo the target in an axial direction and that is provided at a plane vertical to the radial direction of the target. This rotation angle and torque detection apparatus can sense a torque and a multiple rotation angle with high resolution and high accuracy.

Abstract: A gobo wheel with automatic detection system that automatically detects a rotational position of the gobo. The rotational position can be detected by a magnetic marking system. Each of the gobos can be randomly placed within the holder. the position of the gobos can be automatically determined during a start up routine for example, and then those positions can be stored and used for later determination of a position.

Abstract: A chassis dynamometer for a vehicle has a motor having a rotor, rollers on which wheels of the vehicle are disposed, a flange portion extending inward in a radial direction from each of the rollers, and a rotor bracket for supporting the rotor of the motor. The flange portion and the rotor bracket are connected via a torque meter capable of measuring at least an outer peripheral tangential force of said roller.

Abstract: An adapter apparatus and method includes using an adapter body that includes a threaded opening. A torque indicating assembly is used in applying a force upon a packaged device received in a cavity of the adapter body. The torque indicating assembly includes a threaded interface member and a torque indicator.

Abstract: An apparatus and method for noncontact, optical measuring of any of torque, torque angle, shaft speed, and shaft direction by at least one of a rotatable or non-rotatable flexure with input and output ends, a light source for generating a light signal, a field mask carrying a pattern of opaque and transparent lines adapted to form an image of overlaid lines on the field mask and reflected from lines on the input and output ends of the flexure, and a detector for receiving a light signal from the overlaid lines in the image, the detector generating an output light signal waveform proportional to the torque, and comparing amplitude variations between input and output end waveforms to provide a measurement of torque.

Abstract: An electronic torque tool with multiple color display assembly comprises a driving portion formed at one end of the spanner body for driving an object; a handle formed at another end of the spanner body for being held by users; and a display portion installed between the driving portion and the handle; the display portion having a display screen for displaying related data; and a color display control module being built in the display screen for emitting lights of different colors so as to display the variation of data and change the background of the screen so that the user can identify the data and variation f the data easily and clearly.

Abstract: A drive system is provided for an electronic domestic appliance, for example a washing machine, a dryer or a dishwasher, having an electric motor and a motor controller for controlling operation of the electric motor. The motor controller is provided with a testing device which contains at least one apparatus for measuring motor currents of the electric motor, an apparatus for applying voltages to motor terminals of the electric motor, and an interface to an evaluation apparatus. The drive system can be tested without problems and at minimal cost during final testing of the domestic appliance if the drive system is fully integrated in the domestic appliance. A method for final testing of an electronic domestic appliance having a drive system and an electronic domestic appliance having the drive system, are also provided.

Abstract: A torque transducer system comprises a disc through which torque is transmitted in a radial direction and which has a magnetised annular region which emanates a torque-dependent magnetic field. A non-contacting magnetic field sensor detects the emanated field. The annular region comprises segments by means of which a pulsed magnetic field is emanated as the disc rotates. The segments may be magnetically unipolar and spatially separated or of alternate polarity. They may be integral with the disc of or material applied to the disc that is magnetised or that segments an underlying magnetisation in the disc. The preferred direction of magnetisation is radial and the effect of the orientation of a sensor with respect to the radial field is discussed. One sensor arrangement comprises a pair of sensors oriented at an angle to one another with reference to the radial field.

Abstract: A method for detecting and optionally a method for quantifying drilling anomalies in a metal part. The drilling method includes determining a value set of at least one of the two following parameters, depending on the time: the penetration axial stress of a drill bit into the metal part and the torque generated during at least one portion part of the drilling.

Abstract: A torque meter enables highly accurate measurement of a torque by detecting only the torque, without being affected by various loads. The torque meter includes an elastic member placed in a power transmission channel and being deformed upon application with a torque being measured, and a torque detecting arrangement for detecting the torque based on the deformation of the elastic member. The torque member receives a torque being applied to the elastic member, and the load member is provided separately from the torque member, for supporting the load of the elastic member.

Abstract: An industrial robot including a tool flange at an end of an outer arm of the robot. A tool is secured to the tool flange. A sensor is configured to sense forces and/or torques applied to a tool secured to the tool flange. The sensor is built into the structure of the robot in the region of the tool flange.

Abstract: In a method and apparatus for testing a head-gimbal assembly (HGA), a HGA is placed in contact with force transducers mounted on a rotational stage. The force transducers are adjusted to position the transducers around a rotational center of the rotational stage. The rotational stage is rotated, and the torque and variations in torque exerted by the HGA on the force transducers during rotation are measured.

Abstract: A torque sensor for a steering wheel with a center axis has an input member, an output member, the input and output members being rotatable about the common center axis, and a spring member that is arranged in a flow of force between the input member and the output member, the spring member is configured as a flat spring member extending in a plane perpendicular to the center axis.

Abstract: An apparatus is provided for accurately measuring the capping head torque exerted by bottle capping machines on screw-type plastic or metal caps when such caps are applied to bottles.

Abstract: An apparatus and method is provided for measuring magnetic force response time due to the magnetic viscosity of materials and for measuring total energy exchanged due to relative motion of magnetic materials. Voltage and current versus time through an electromagnet is measured and recorded. Corresponding force versus time is measured for magnetic forces applied to a material under test in response to energizing the electromagnet to determine effects of magnetic viscosity of the material under test. A test system is also provided for measuring energy exchanged due to the relative motion of magnetic materials. Absolute values of transferred mechanical energy and electrical energy are combined to determine the total energy exchanged by interaction of a permanent magnet and an electromagnet.

Abstract: A device for determining the rotation angle of a shaft in an aircraft, the device having a shaft and a motor operable to rotate the shaft to operate a component and to detect first rotation data of the shaft. The device also includes a position pickup unit designed to detect second rotation data of the shaft, and a synchronization unit for synchronizing the first rotation data with the second rotation data.

Abstract: A torque wrench for engaging a workpiece includes a wrench body having a first end and a second end. A wrench head is disposed on the first end of the wrench body and is configured to engage the workpiece. A display device is carried by the wrench body and includes a housing, a display, and an input device for inputting a preset torque value. A torque sensor is carried by the wrench head and is electrically connected to the display device. A detent extends outwardly from one of the wrench body, the wrench head, and the user interface and a plurality of recesses is formed in another of the wrench body, the wrench head, and the user interface, each of the recesses being configured to releasably receive the detent. The display device is rotatable relative to the wrench head so that the detent is received by one of the recesses for retaining the display device in a desired angular position with regard to the wrench head.

Abstract: A device and a method for measuring torque for an electromechanical steering system comprises a steering means that is connected in a driving manner to a steering mechanism via a torsion rod which is provided with an input shaft part (101) and an output shaft part (102), an electric servomotor for driving the steering mechanism, the driving activity by the servomotor causing a relative rotational displacement between the input shaft part (101) and the output shaft part (102), a sensor unit (53) for detecting a steering angle (d), a sensor unit (52) for detecting a rotor angle of the servomotor (2), and a virtual torque sensor (54) in which a steering moment (??) is determined from the steering angle (d) and the rotor angle.