753results about "Force sensors" patented technology

Apparatus (20) is provided for improving athletic performance of a user, including a flexible insole (40), adapted for insertion into a shoe, the insole shaped so as to define one or more chambers (22, 24). The apparatus also includes a stimulator (50) and a control unit (30). The control unit is adapted to detect respective pressures in the chambers, and to drive the stimulator to apply a stimulation to the user responsive to the detected pressures and a desired parameter of athletic performance.

A load sensing bearing assembly comprises a bearing outer race secured to an application structure by a flange assembly incorporating a plurality of anisotropic spring regions which enable a limited range of displacement and / or rotation of the bearing outer race relative to the application structure in response to applied forces or moments. A set of sensor modules disposed through the bearing outer race and flange assembly acquire measurements from which the radial forces, thrust forces, and tilting moments exerted on the bearing outer race can be determined.

Apparatus (20) is provided for improving athletic performance of a user, including a flexible insole (40), adapted for insertion into a shoe, the insole shaped so as to define one or more chambers (22, 24). The apparatus also includes a stimulator (50) and a control unit (30). The control unit is adapted to detect respective pressures in the chambers, and to drive the stimulator to apply a stimulation to the user responsive to the detected pressures and a desired parameter of athletic performance.

A device called “pill” is provided for in-line measurement of properties, such as pressure and temperature, in a fluid flow within a pipeline system. The device is small enough to travel in the medium of the pipeline system in an unrestricted manner. It has at least one sensor to scan properties such as pressure and temperature at a desired rate. Also, the device includes a microprocessor for logging data scanned by the sensor so that it can later be downloaded and analysed by a PC. Moreover, the device has a buoyancy compensator for adjusting the specific gravity of the device to make it compatible with the medium in which it travels. The novel device is particularly suitable for use in solids transport systems, such as mining backfill systems.

The invention discloses a real-time high-precision detection method and system for a bolt pre-tightening force based on a piezoelectric ultrasonic wafer. The piezoelectric ultrasonic chip is used as an ultrasonic excitation source to be attached to a bolt head, and a high-precision fitting relationship between an ultrasonic flight time difference and the bolt pre-tightening force is established byusing the change law of an ultrasonic single-wave time difference with the stress value; and real-time detection of the bolt pre-tightening force is achieved by using the mathematical relationship. Compared with the prior method using the ultrasonic probe, the method provided by the invention eliminates the error caused by the uncertainty of the thickness of the coupling agent, and further improves the measurement accuracy by using the single-wave time difference. Low-error-rate measurement of the bolt pre-tightening force is achieved at low cost and without influencing the structural performance.

A hydrodynamic bearing includes a fiber optic sensor for measuring static and dynamic bearing forces or loads during operation. The fiber optic sensor is positioned within the bearing through the most direct load path, which is through the pad support for a tilting pad style bearing. In additional to being positioned in the pad support of a tilting pad bearing, the sensor is also placed 1) inside the pad support or on the pad support structure, and 2) oriented perpendicularly with the shaft centerlines. After the sensor location is chosen and the sensor is properly positioned, a calibration procedure is utilized to determine the relationship between the radial load and measured strain for the specific bearing. Once the calibration factor has been determined, the sensor may be utilized in the bearing to measure load during operation.

An in-situ apparatus is provided for monitoring the state of stress / strain and cracking in a die surface. The apparatus may also be used to facilitate the prudent removal of the die from the surface so that it may be repaired before catastrophic failure occurs. Accordingly, the yield of a process used to generate die cast structures may be greatly increased.

To provide a torque detecting device having a sufficient mechanical strength, capable of accomplishing an accurate torque measurement, having a processability excellent for mass-production, and effective to eliminate problems associated with damages which would be brought about during a heat treatment. This torque detecting device includes a target area subject to torque detection (3) provided in a surface region of a torque transmitting shaft (2) made of a steel material; a detecting coil (4) provided in a non-contact fashion in face-to-face relation to an outer periphery of the target area subject to torque detection (3); and a detection signal processing circuit (5). The target area subject to torque detection (3) is a layer of magnetostrictive material comprised of an Al diffusion layer. This diffusion layer contains Al diffused in a steel material in a concentration which gradually decreases from the surface in a direction radially inwardly of the torque transmitting shaft (2).

Receiving machine-readable information about an anchor point, analyzing that information to determine if connecting a load to the anchor point would be safe, and reporting the results of this analysis to a user.

An impact detector includes a case, an impact indicator disposed on a front side of the case, to indicate an impact history of the impact detector, a first weight that moves inside the case to a side to which the case falls, causing the impact indicator to indicate the impact history by moving through at least one of a first transition path and a second transition path, a first guide member to guide the first weight to a first impact detection position along the first transition path when the case falls in a first direction, and a second guide member to guide the first weight to the second impact detection position along the second transition path when the case falls in a second direction. The first transition path at least partly overlaps with the second transition path on a projection plane on the front side of the case.

The invention relates to the technical field of measuring equipment, in particular to a miniature bearing measuring device, comprising a power mechanism, wherein the output shaft of the power mechanism is connected with the inner ring of a bearing to be tested, the outer ring of the bearing to be tested is connected with a loading ring, the loading ring is provide with a loading mechanism, a forcemeasuring mechanism is arranged on the side of the loading ring, the force measuring mechanism comprises a force applying rod connected to the side of the loading ring at the left end, and the rightend of the force applying rod is connected with a sensor. In the invention, the loading part has a self-aligning function to well ensure pure axial loading without generating an overturning moment with respect to the axis; the position of the sensor increases a homing device of the electromagnet, so that the force sensor can automatically zero, and the problem that it is impossible for self-zeroing or it is too difficult for manual zeroing caused by too sensitive sensor and small range of the sensor; the installation and replacement are convenient and fast, and the loading block can be disassembled and replaced without affecting the test of the test bearing.

A sensor-equipped wheel support bearing assembly, enabling the cost during the mass production to be reduced, includes an outer member (1), an inner member (2), a plurality of rolling elements (3) interposed between the opposed raceway surfaces. One of the outer member (1) and the inner member (2), which serves as a stationary member, is fitted with a sensor mounting member (22) provided with a strain sensor (23). The sensor mounting member (22) is further provided with a status detecting sensor (24) for detecting different status other than a strain.

A roller bearing apparatus having a fixed bearing ring, a rotary bearing ring, and rolling elements rollably provided between the bearing rings. Piezoelectric elements are provided in the form of a film interposed between the fixed bearing ring and a fixing part to which the fixed bearing ring is fixed so as to detect loads applied between the fixed bearing ring and the fixing part.

A roller bearing apparatus having a fixed bearing ring, a rotary bearing ring, and rolling elements rollably provided between the bearing rings. Piezoelectric elements are provided in the form of a film interposed between the fixed bearing ring and a fixing part to which the fixed bearing ring is fixed so as to detect loads applied between the fixed bearing ring and the fixing part.

A method for modeling material behavior includes using empirical three dimensional non-uniform stress and strain data to train a self-organizing computational model such as a neural network. A laboratory device for measuring non-uniform stress and strain data from material includes an enclosure with an inclusion in it. As the enclosure is compressed, the inclusion induces a non-uniform state of stress and strain. A field testing device includes a body having a moveable section. When the body is inserted in a material and the moveable section moved, a non-uniform state of stress and strain can be characterized.

A load sensing bearing assembly comprises a bearing outer race secured to an application structure by a flange assembly incorporating a plurality of anisotropic spring regions which enable a limited range of displacement and / or rotation of the bearing outer race relative to the application structure in response to applied forces or moments. A set of sensor modules disposed through the bearing outer race and flange assembly acquire measurements from which the radial forces, thrust forces, and tilting moments exerted on the bearing outer race can be determined.

The invention discloses a detection device for a polyethylene ball valve and relates to the technical field of valve detection. The device at least comprises a base, a torque sensor and a motor, wherein the base comprises an upper bottom plate and a lower bottom plate; the torque sensor is disposed between the upper bottom plate and the lower bottom plate; the central axis of the torque sensor islongitudinal, the lower end of the torque sensor is driven to rotate by the motor and a valve rod connecting block is fixed at the upper end of the torque sensor; the top part of the valve rod connecting block is provided with a strip groove which can be engaged with the valve rod of a ball valve; the upper surface of the upper bottom plate is provided with a ball valve positioning mechanism whichcomprises a left positioning seat and a right positioning seat; the left positioning seat is provided with a left positioning bayonet for positioning a left connection pipe of ball valve and the right positioning seat is provided with a right positioning bayonet for positioning a right connection pipe of the ball valve. In order to solve a problem of low accuracy of direct detection of the polyethylene ball valve with a torque wrench directly in the prior art, the invention provides the polyethylene ball valve detection device with high accuracy and convenient operation.

Method and sensor arrangement for determining a load vector acting on a rolling element bearing (1) in operation. A plurality of N sensors (8) are provided which measure displacement and / or strain for determining displacement and / or strain in one of the elements (5, 6, 7) of the rolling element bearing (1). Furthermore, a mode shape coefficients calculator (11) is provided, connected to the plurality of N sensors (8), for determining a deformation of the element (5, 6, 7) by calculating amplitude and phase of N / 2 Fourier terms representing at least one radial mode shape of the ring shape element (5, 6, 7). Also, a bearing neural network (12) is present, connected to the mode shape coefficients calculator (11), the bearing neural network (12) being trained to provide the load vector on the rolling element bearing (1) from the N / 2 Fourier terms.

The invention discloses a novel six-dimensional force and torque sensor comprising a central boss, a cylindrical shell which is arranged at the external side of the central boss, and 12 elastic beams which are used for connecting the central boss and the cylindrical shell. Strain gauges are distributed on the 12 elastic beams according to the requirements. The bottom part of the central boss is provided with an installing hole used for installing a signal processing module. The novel six-dimensional force and torque sensor has the characteristics of structural self-decoupling, high rigidity, high inherent frequency and ideal linearity, repeatability and hysteresis so as to measure large torque (50N.m) Besides, the sensor of different measuring range and sensitivity can be designed by the dimensional change of all the elastic beams.

A sensor-incorporated wheel support bearing assembly, enabling a load sensor to be compactly installed on the vehicle and capable of detecting a load on a wheel with good sensitivity includes a ring member, affixed to a stationary member, which has at an intermediate portion thereof a first non-contact ring portion not in contact with the stationary member, at one end a first contact ring portion in contact with the stationary member, and at the other end the following (A) or (B): (A) a second non-contact ring portion having a wall thickness greater than that of the first non-contact ring portion; (B) a second contact ring portion in contact with the stationary member. A strain sensor is fitted to; in (A), the first non-contact ring portion, and in (B), the first non-contact ring portion or first contact ring portion, which has smaller wall thickness.

The invention provides a self-power supply and wireless data transmission-based mechanical seal face friction torque measurement device which can be used for realizing accurate measurement of torques of mechanical seals to be measured in mechanical seal performance test devices. The self-power supply and wireless data transmission-based mechanical seal face friction torque measurement device comprises a shaft sleeve, a transmission pin, a force sensor, a signal processor, a wireless transmission module, a wireless reception module and a self-power supply module, wherein a main shaft passes through the shaft sleeve; the sleeve shaft is sleeved by a mechanical seal of the face friction torque to be measured; a movable ring is connected with the shaft sleeve; a fixed ring is fixed on a seal cavity; the torque generated by face friction between the movable ring and the fixed ring of the mechanical seal is balanced with the torque transmitted to the shaft sleeve by the transmission pin through the main shaft; the torque is decided by the product of a peripheral force measured by the force sensor adhered on the transmission shaft and a force arm at a force measurement point; the measured peripheral force is processed by the signal processor and transmitted to the wireless reception module by the wireless transmission module; by utilizing the electric energy generated by rotation of the main shaft or the shaft sleeve, power can be supplied to the signal processor and the wireless transmission module through the self-power supply device.

The invention discloses an eccentricity adjustable sliding bearing test device, which is suitable for a half-bush and full-bush sliding bearing bush test. A driving motor is fixedly connected to a main shaft, and is connected to a test sliding bearing bush at the end of the main shaft; and the sliding bearing test under different eccentric conditions is simulated by accurately monitoring and quantitatively adjusting the position of the test bearing bush in the horizontal and vertical directions, so that each performance indicator of a high-speed and heavy load sliding bearing under different eccentric conditions is output. An end cap flange of the end of the bearing bush of the sliding bearing test device is provided with horizontal and vertical displacement sensors for monitoring the eccentricity of the bearing bush and the shaft neck. A plurality of pressure sensors and temperature sensors are arranged at different positions on the side of the test bearing bush for measuring the oilfilm pressure and the oil film temperature at different positions under the same eccentric amount. A loading device is located on the side of the test bearing bush for applying different external loads, so as to monitor the sliding bearing test under different loads. The eccentricity adjustable sliding bearing test device has a simple structure, convenient assembly and disassembly, and high measurement precision.

A collision sensor assembly is attachable to a stationary structure such as a pallet rack, a door frame, the corner of a wall, or the like. The collision sensor is configured to sense when a collision occurs with the stationary structure such as when a piece of movable machinery contacts the stationary structure. The collision sensor assembly includes a sensor operatively connected to a processor which determines when a collision occurs, and produces a signal to an output signal generator to provide an external indication of the collision.

A torque testing device includes a base, a clamping device for clamping a fastener, a holing cylinder mounted on the base, a mounting beam mounted on the holding cylinder, a moving component, a rotation component, and a torque wrench. The mounting beam defines a nesting hole. The moving component includes a tubular member received in the nesting hole and a driving component mounted on the mounting beam for driving the tubular member towards the fastener. The rotation component includes a rotation shaft and at least one rotation element positioned between the rotation shaft and the tubular member. The rotation shaft is moved with the tubular member towards the fastener. The rotation shaft is capable of being rotated about the tubular member through the rotation element. The torque wrench is connected to the rotation shaft for applying torque to the rotation shaft and revealing the value of the torque.

A torque transducer assembly includes a first shell having a threaded neck and a distal end. A second shell is also provided. A sensor module includes a first frame member, a second frame member, and a sensor. The first frame member is attached to the first shell and the second frame member is attached to the second shell such that the first and second shells are coupled to one another. A method of manufacturing a torque transducer assembly is also provided. A packaging system including a torque transducer assembly is additionally provided.

The invention discloses a six-freedom tactile sensor and a decoupling designing method thereof. The tactile sensor is based on a capacitance conduction principle and is composed of a shearing force sensing unit, a torsion sensing unit and a positive pressure array sensing unit. The six-freedom tactile sensor can simultaneously sense abundant multidimensional information such as shearing, spatial load and torque. According to the six-freedom tactile sensor, intersected axis sensitivity is used as a standard for measuring the decoupling precision for guiding sensor structure designing; decomposition of each dimension force / torque information to three independent sensing unit is ingeniously realized, thereby reducing decoupling difficulty and improving decoupling precision, and independentlyrepresenting a six-freedom force / torque component. Simultaneously, through constructing a double-interdigital-electrode structure and a lose grid-shaped dielectric structure, ultrahigh-sensitivity measurement of the sensor is realized. The six-freedom tactile sensor and the decoupling designing method have advantages of reducing coupling degree and decoupling difficulty in multidimensional measurement of the sensor, remarkably improving decoupling efficiency and realizing decoupling characterization of a six-dimensional force / torque.