Abstract: A surgical device includes a handle assembly having a controller and an adapter assembly including a tubular housing having a proximal end portion configured to couple to the handle assembly and a distal end portion. The adapter assembly also includes a load sensing assembly disposed with the tubular housing. The load sensing assembly is configured to measure a load exerted on the tubular housing and includes: a sensor body having a pocket defined therein; a load sensor circuit disposed within the pocket and coupled to the sensor body; and a signal processing circuit disposed within the pocket and electrically coupled to the load sensor circuit. The load sensing assembly further includes a cover disposed over the pocket and enclosing the load sensor circuit and the signal processing circuit therein, the cover being coupled to the sensor body thereby forming a first hermetic seal therebetween.

Abstract: This disclosure describes systems, devices, apparatuses, and methods of adjusting a resistance of user-input device, such as a joystick. In particular configurations, the device includes a joystick configured to rotate about a first axis and a second axis and a first resistance mechanism coupled to the joystick. The first resistance mechanism can include a rotary damper configured to selectively resist rotation of the joystick about the first axis and a processor in communication with the rotary damper and configured to adjust a resistance torque of the rotary damper. The rotary damper may provide resistance through manipulation of a magnetorheological (MR) fluid in the fluid damper.

Abstract: An anti-sweeping hook that includes a display hook for storing retail merchandise. The display hook is substantially straight and having a first end and a second end opposite the first end. A helical coil is disposed about the display hook and extending along a lengthwise portion of the display hook. The helical coil has a first coil end proximate the first end of the display hook. Rotation of the helical coil in a first direction loads the retail merchandise onto the display hook. Rotation of the helical coil in a second direction opposite the first direction removes the retail merchandise from the display hook. A rotating handle is attached to the first end of the display hook and to the first coil end. The rotating handle is configured to determine an extent of rotation for the rotating handle.

Abstract: A torque transducer for mounting a motor includes a mounting flange, a motor flange, a body, and a strain gauge. The mounting flange is configured to secure the torque transducer to a fixed structure. The motor flange is configured to secure to a motor. The body interconnects the mounting and motor flanges. The body defines a channel about a longitudinal axis of the body and is configured to flex in response to the mounting flange and the motor flange rotating relative to one another in response to torque of the motor. The strain gauge is positioned on the body to measure flexation of the body.

Abstract: An accelerator pedal is located forward of the driver seat. The accelerator pedal is supported by a bracket and is movable by stepping on than accelerator pedal. An accelerator position, sensor is located higher than the bracket and detects a deflection amount of the accelerator pedal. A wire connects the accelerator pedal and the accelerator position sensor to each other. The vehicle can prevent the accelerator position sensor from being splashed with mud and water.

Abstract: A torque transducer for mounting a motor includes a mounting flange, a motor flange, a body, and a strain gauge. The mounting flange is configured to secure the torque transducer to a fixed structure. The motor flange is configured to secure to a motor. The body interconnects the mounting and motor flanges. The body defines a channel about a longitudinal axis of the body and is configured to flex in response to the mounting flange and the motor flange rotating relative to one another in response to torque of the motor. The strain gauge is positioned on the body to measure flexation of the body.

Abstract: A method for determining total damage to at least one rotating component of a drive train in a system, in particular a wind or wave energy system, includes determining over time during operation of the system a variable characterizing a rotational speed of the component and a variable characterizing a torque transmitted by the component. A load collective is determined in a calculator unit from the temporal progression of the variables, and the total damage is determined from a comparison of the determined load collective and a reference load collective.

Abstract: An electric motor controller having a front face and a rear face, the front face carrying a plurality of AC output couplings and the controller carrying a converter configured to convert a received DC supply into an output AC supply for controlling an electric motor, the AC output couplings being disposed symmetrically about an axis of symmetry of the controller on the front face of the controller. Also described is an apparatus comprising: a DC series motor; and a first current supply configured to supply a first current to an armature of the DC series motor; a second current supply configured to supply a second current to a field winding of the DC series motor; and a controller configured to control the first current supply to supply the first current based on a required torque output for the motor, and to control the second current supply to supply the second current based on the first current.

Abstract: Biometric monitoring devices, including various technologies that may be implemented in such devices, are discussed herein. Additionally, techniques for utilizing gyroscopes in biometric monitoring devices are provided. Such techniques may, in some implementations, involve obtaining swimming metrics regarding stroke cycle count, lap count, and stroke type. Such techniques may also, in some implementations, involve obtaining performance metrics for bicycling activities.

Abstract: A first pedaling force measurement device measures a plurality of pedaling force parameters acting on a first crank arm to one end of which a first pedal can be attached and to another end of which a crank shaft can be attached. The first pedaling force measurement device is provided with a strain-flexing part, a first parameter detection part and a first interference suppression part. Strain acting on the first crank arm is conveyed to the strain-flexing part. The parameter detection part is disposed on the strain-flexing part, and detects a plurality of parameters based on the strain being conveyed to the strain-flexing part. The interference suppression part suppresses interference in one parameter detected by the parameter detection part from the other parameters.

Abstract: Disclosed is hub motor structure installed on a bicycle, the hub motor structure including a hollow shaft installed on a frame of the bicycle, a housing rotatably installed on the hollow shaft, and connected to a wheel at an outer circumferential surface thereof through spokes, a cover rotatably installed on the hollow shaft while installed on the housing, and on which a driven sprocket connected to a chain is provided to receive a pedaling force, a motor disposed in the housing and generating a rotary force to drive the wheel, a continuous variable transmission (CVT) disposed in the housing to selectively shift power supplied from the motor, a power transmission unit configured to transmit a rotary force of the motor to the CVT, and a gear unit configured to transmit a rotary force output from the CVT to the housing.

Abstract: Disclosed is a rotor for a torque sensor configured to improve a mechanical coupling force with respect to a jig in a process of adjusting a torque center, thus enabling a fine adjustment, the rotor including a rotor body having a sleeve coupled to a rotating shaft and a yoke protruding from an outer circumference of the sleeve, a ring-shaped magnet coupled to an outer circumference of the yoke, and an anti-slip structure formed on the rotor body and partially coming into contact with a jig during a rotating process for adjusting a torque center, thus inhibiting slipping between the rotor body and the jig when a rotating force is transmitted, so that slipping between the jig and the rotor body is inhibited to enable precise transmission of the rotating force whereby accuracy is improved during fine adjustment of the torque center.

Abstract: The disclosure relates to a method and apparatus of measuring torque. The method and apparatus entails measuring the torque generated by an automobile engine using a torque sensor replacing the driver side engine mount. A spring component of the torque sensor tares the weight of the engine and a hydraulic pressure gauge measures the lifting forces acting on a pressure receiver of the torque sensor.

Abstract: A bicycle rear hub includes a hub spindle, a drive part, a hub shell and a driving force measuring part. The drive part is rotatably supported on the hub spindle, and configured to receive a driving-force-input member. The hub shell is rotatably supported on the hub spindle and operatively coupled to the drive part for rotation by the drive part on the hub spindle. The driving force measuring part includes a first signal generating mechanism and a second signal generating mechanism. The first signal generating mechanism has a first magnet and a first coil. The second signal generating mechanism has a second magnet and a second coil. The second signal generating mechanism is axially aligned with the first signal generating mechanism in an axial direction of the hub spindle.

Abstract: A load pin having a pair of opposing pockets milled a certain distance from the pin's surface, but not extending through the pin. A strain gauge sensor is mounted within the each pocket to measure force. In one embodiment differential bridge network is used to obtain a measurable signal from the strain gauge.

Abstract: A turbopump for a rocket engine includes a rotor shaft with a turbine connected to drive the rotor and a centrifugal impeller connected to be driven by the rotor. An electromagnetic powered motor is formed as part of the turbopump and is powered to drive the rotor at a low speed in order to test for an amount of torque required to drive the rotor at the low speed. A load cell is connected to the motor that rotates the rotor shaft. From the use of a load cell the amount of torque required to rotate the rotor can be determined and compared to a known value in order to determine if the turbopump is damaged and requires repairs.

Abstract: A power sensing arrangement for the rear hub of a bicycle. The power sensing arrangement includes a torque sensing assembly including torque sensing elements configured to measure a user applied torque. The torque sensing elements are in communication with an electronics assembly configured to process the measured data and transmit it to a receiver. The torque sensing elements are interconnected with the free hub assembly of the rear hub, and are operable to detect torque applied to the free hub from the rear cassette.

Abstract: For identifying the machine type of an alternating current machine, a direct current is first applied to the stator for aligning the d-axis of the rotor and the magnetic field direction of the stator. Secondly, a direct current is applied to the stator at a current angle which causes the rotors of a permanent magnet machine and a synchronous reluctance machine to exert torque in different directions. The torque direction of the rotor is detected and the machine type is identified based on the torque direction information. The machine type is recognized as a permanent magnet machine or a synchronous reluctance machine depending on the torque direction. If no torque is detected, then the machine type is recognized as an induction machine.

Abstract: A driving device includes a motor, a clutch gear, a first rotating portion, a second rotating portion, a piezoelectric assembly, and a controlling unit. The motor includes a rotating shaft. The clutch gear is fixed to the rotating shaft. The first rotating portion sleeved on the rotating shaft includes a first end meshing with the clutch gear and a second end opposite to the first end. The second rotating portion is engaged with the second end. The piezoelectric assembly is sandwiched between the second end and the second rotating portion. The controlling unit is electrically connected to the motor and the piezoelectric assembly. The controlling unit is configured for storing a predetermined voltage, and determining whether a voltage output by the piezoelectric assembly equals to or exceeds the predetermined voltage. A protection method for the driving device is also provided.

Abstract: A power sensing arrangement for the rear hub of a bicycle. The power sensing arrangement includes a torque sensing assembly including torque sensing elements configured to measure a user applied torque. The torque sensing elements are in communication with an electronics assembly configured to process the measured data and transmit it to a receiver. The torque sensing elements are interconnected with the free hub assembly of the rear hub, and are operable to detect torque applied to the free hub from the rear cassette.

Abstract: A system for measuring current in an H-Bridge motor drive circuit and using that current to determine the output of a device powered by the motor. A particular embodiment is disclosed for a motor-driven fluid pump. Motor current is measured at predetermined pump pressures and flow rates to create calibration tables relating motor current to pump pressure. Once calibrated, the system determines pump pressure based on motor current by referring to the calibration tables. In an embodiment, the pump is driven to achieve a predetermined fluid dispense profile. The system monitors pump pressure by measuring motor current and determines if the dispense profile is being achieved and sets alarms if predetermined thresholds are not maintained. The system also detects pump wear based on the current measurements and issues warnings to the user in such conditions.

Abstract: A system and method provide for the effective, real, testing of a wind turbine, especially a vertical axis wind turbine, in a simple, versatile, durable, and relatively cost effective manner. The shaft of a wind turbine (e.g. a VAWT such as a Savonius) is connected to a disc, as is a proportionally controlled disc brake. A torque transducer is connected to the shaft, and an rpm sensor, and a device which collects torque and rpm data from the torque transducer and sensor, are provided. The torque transducer and rpm sensor may be a rotary torque transducer, or the torque transducer may be a load cell operatively positioned a known distant X from the turbine shaft, which known distance X is input into the device which collects torque and rpm data. By effectively applying loads to the proportional disc brake at determined wind speeds, a power curve for the wind turbine can be generated.

Abstract: A system for mounting an engine to a frame in a manner to permit measurement of its torque by a transducer which is isolated from loads induced by installation misalignments, frame deflections and acceleration induced forces. One embodiment of the system is compatible with widely used automotive resilient elastic engine mounts without engine or frame modifications.

Abstract: An optical sensing system is used to measure engine torque. A pair of patterns are formed on a driveshaft between a transmission and axle differential. The patterns are spaced apart from one another by a predetermined distance and are formed about the circumference of the driveshaft. Lasers and photo receivers are used to scan the patterns as the driveshaft rotates. Data from the photo receives is used to determine the angle of twist on the driveshaft which is proportional to the engine torque. The torque for each cylinder can be measured by generating a torque profile for every two revolutions of the driveshaft. The torque profile is read in 120 degree increments for a six cylinder engine and in 90 degree increments for an eight cylinder engine, for example.

Abstract: A torque variation control device for a vehicle which has a motor providing rotational torque to a drive shaft of a vehicle, a motor control means controlling the motor based on drive torque, and a rotational velocity detection means detecting a rotational velocity of the drive shaft or a rotational shaft of the motor. The device has a feature that the device includes a torque variation detection means detecting a torque variation of the vehicle caused by a variation of the rotational velocity, and a compensation torque setting means setting compensation torque in an opposite phase relative to the torque variation.

Abstract: A torque variation control device for a vehicle which has a motor providing rotational torque to a drive shaft of a vehicle, a motor control means controlling the motor based on drive torque, and a rotational velocity detection means detecting a rotational velocity of the drive shaft or a rotational shaft of the motor. The device has a feature that the device includes a torque variation detection means detecting a torque variation of the vehicle caused by a variation of the rotational velocity, and a compensation torque setting means setting compensation torque in an opposite phase relative to the torque variation.

Abstract: A beam-type torquing and measuring tool having two telescoping members rotationally attached together at a first end of each, and they are relatively rotatable at the other end. One member transmits torque to the workpiece and has a pointer thereon, and the other member has a scale readable relative to the pointer to measure the torque being applied. The members have a central opening extending axially therethrough for canalization, and there may be adapters threadedly attached to the tool ends, and the scale and pointer can be read in their two diametrically opposite locations.

Abstract: A governor comprising an output setting means for setting an output value for an engine, an output adjusting means for adjusting an engine output based on a value set by the output setting means, and a load detecting means. The load detecting means is provided in a transmission system for driving a vehicle for detecting an amount of load torque generated through rotational resistance applied on the axles that is transmitted from the axles to the engine through the transmission system.

Abstract: A measuring apparatus and method for measuring power in a bicycle are described. The hub of the driven wheel of the bicycle includes one or more components such as an inner hub member, an outer hub member or a linking member which couple the rotational torque through the wheel to rotate the wheel. A sensor such as one or more strain gauges is mounted on one of the components that couple torque through the wheel such that strain in the torque coupling component is detected. The detected strain is used to determine applied torque which is used to determine power applied to the driven wheel of the bicycle. Because the torque coupling component is mounted in the hub in the path along which torque is coupled through the wheel, the sensor rotates with the wheel as it detects the applied torque.

Abstract: A device is provided for measuring non-repetitive run-out and dynamic torque simultaneously for a radial rolling bearing, comprising a holder for holding one of the outer and inner races, a pushing member for pushing the holder in an axial direction without confining the holder in both of the radial and rotational directions, a drive shaft for rotatingly driving the other of the outer and inner races, a precision bearing device for rotatingly supporting the drive shaft, a displacement sensor for measuring radial displacement of the one of the outer and inner races, a wire having one end connected to a portion which rotates together with the one of the outer and inner races, and a torque sensor connected to the other end of the wire to measure dynamic torque applied to the one of the outer and inner races.

Abstract: Process for winding a reel and a reel winding apparatus, as well as a measuring apparatus. The process includes determining the driving forces at the locations of the introduction of the driving force onto the reel, and determining a difference between the driving forces. The reel winding apparatus includes at least first and second drive mechanisms arranged to act on a reel to be wound, a measuring system, coupled to the at least first and second drive mechanisms, that includes a force transducer arranged in a vicinity of an introduction of force into the reel, and an evaluation device coupled to the force transducer. The measuring apparatus is provided for measuring a difference in peripheral forces between at least first and second drive elements in a reel winding device. The apparatus includes first and second contacts adapted to contact the first and second drive elements, respectively, and a transducer coupled to the first and second contacts.