59 results about "Translational displacement" patented technology

A stationary bicycle comprises a frame. A crankset is rotatably mounted to the frame to receive a pedaling actuation from a user of the stationary bicycle. A seat is mounted to the frame to support the user using the crankset in the pedaling actuation. A handlebar is mounted to the frame to serve as a hand/arm support for the user during the pedaling actuation. Translational joints between the frame and the seat and the handlebar are provided for translational displacement of the seat or handlebar with respect to the crankset. A mechanism is connected to the translational joint for locking the translational joint in a selected position, the mechanism allowing movement of the translational joint solely by a selected actuation displacing the translational joint proportionally in the direction of the translational displacement.

A computer input device, such as a mouse, is disclosed that includes one or more sensor systems for detecting translational displacement and angular displacement of the input device relative to a support surface. The input device transmits a signal to a computing device in response to detecting the translational displacement and angular displacement, and the computing device moves an image on a display screen in a linear manner in response to the signal. The sensor system within the input device may be an optical sensor system, for example.

An operation input device that has multi jointed arms includes: a holding unit that holds proximal ends of the multi-jointed arms in a state in which a relative positional relationship between the proximal ends is fixed; a detection unit that detects a joint movement amount that represents a movement of a joint by a rotation angle or a translational displacement from an unknown initial joint value; engagement units that are provided in distal ends of the multi jointed arms; a data acquisition unit that acquires a plurality of sets of joint movement amounts detected by the detection unit in a time series when engaging and moving the distal ends; and an initial value calculation unit that calculates the unknown initial joint value under a condition that a relative positional relationship between the distal ends is fixed via the engagement units.

An echo tracking processor unit detects a bone surface section based on an echo signal and tracks a position of the bone surface section. An interpolation line generator unit generates an interpolation line connecting tracking points which represent the tracked bone surface section. A translational displacement corrector unit removes a translational displacement component between an interpolation line corresponding to a time phase of a no-load state stored in a memory and an interpolation line corresponding to a time phase in a loaded state output from the interpolation line generator unit. A strain calculator unit calculates an amount of strain of bone for each time phase and outputs to a characteristic curve generator unit. The characteristic curve generator unit generates a characteristic curve related to the strain of bone based on a load value output from a load measurement device and the amount of strain of bone output from the strain calculator unit.

A novel method of designing a twisting translational pump cartridge by utilizing a polymer shell with moveable cores inserted from each end. The polymer shell contains two perpendicular passages along the top for connection of a prime fluid chamber, a bulk fluid supply chamber and a fluid reservoir. These perpendicular passages and corresponding connection details are arranged in a fashion that is perpendicular to the axis of the polymer shell that comprises the pump cartridge cavity. Directly below at a different relative position also perpendicular to the axis of the pump cartridge cavity is an exit perpendicular passage for extrusion of fluid. The pump cartridge contains no valves or ancillary passages to direct flow between the different machine states of prime, refill, translate and dispense. The states are activated by changing the pitch of the twist or speed to determine relative position of the moveable cores with respect to each passage. Fluid moves by translation within the pump cartridge by filling the cavity volume between the oblate ends of the moveable cores with a liquid and matching the pitch of advancing left moveable core with the retreating pitch of the right moveable core. Both moveable cores can be directed to twist toward one another or one moveable core can remain stationary while the other advances twisting toward it to dispense a liquid.

The invention belongs to the technical field of displacement monitoring, and particularly provides a high-rise structure dynamic displacement monitoring method based on a digital image, which includes an image collecting system and a data analyzing system, wherein the image collecting system is mounted on a measuring point of a to-be-monitored building with a lens of the image collecting system facing toward the ground, the included angle between the lens direction and the vertical direction is theta, and the image collecting system is used for collecting the ground image data; and the data analyzing system calculates the translational displacement and the torsion angle of the measuring point of the building according to the collected ground image data. The method can perform long-time, highly-precise, real-time and automatic monitoring of the dynamic displacement of the high-rise structure, and has the advantages of convenience for mounting and simplicity for popularization and application.

A novel method of designing a pump by utilizing a cylinder with pistons inserted from each end. The cylinder contains two ports along the top for connection of a prime fluid chamber, a bulk fluid supply chamber and a fluid reservoir. These ports and corresponding connection details are arranged in a fashion that is perpendicular to the axis of the cylinder that comprises the pump chamber. Directly below at a different relative position also perpendicular to the axis of the pump chamber is an exit port for extrusion of fluid. The pump contains no valves or ancillary passages to direct flow between the different machine states of prime, refill, translate and dispense. The states are activated by relative position of the pistons with respect to each port. Fluid moves by translation within the pump by filling the chamber volume between the two pistons with a liquid and synchronizing the advance of the left piston with the retreat of the right piston. Both pistons can be directed toward one another or one piston can remain stationary while the other advances toward it to dispense a liquid. Exceptionally accurate volumes of fluid can be deposited because of the absence of compliant members in the wetted path.

In a hydraulic valve comprising a spool, one or more band-shape check valves and an enclosing bolt or snout, the check valve may be compressed to the point of excessive wear or failure and may impede spool movement. The problem outlined is solved by an inventive hydraulic valve for use with a cam phasing apparatus of an internal combustion engine. The hydraulic valve comprises a hollow bolt or snout, check valves, and a spool disposed inside the bolt while still being able to shift axially within the bolt. The bolt and spool are configured to provide fluid passageways between the spool and the cam phasing apparatus depending on a translational displacement of the spool. Furthermore, the spool is configured to allow an oil flow through the fluid passageway, yet limit a compression of the band-type check valves.

Apparatus are provided for infusion devices and related systems and operating methods. An exemplary system includes a motor, a sensing arrangement coupled to the motor to provide output indicative of a detected characteristic of the motor when the sensing arrangement is enabled, and a module coupled to the sensing arrangement to periodically enable the sensing arrangement while the motor is idle and detect potential unintended motion of the motor based on the output from the sensing arrangement while periodically enabling the sensing arrangement. In some embodiments, the motor includes a rotor configured such that its rotation provides translational displacement of a plunger in a fluid reservoir, and the sensing arrangement includes one or more sensors configured to provide output indicative of a detected magnetic field of the rotor magnet.

A connector plug comprises first (10') and second (10'') cylindrical portions, wherein the second portion is arrangeable in a cylindrical cavity of a socket (6), a locking/unlocking sleeve (13) consists of first and second parts, said plug (10) and sleeve (13) comprise holding means (11, 12) which interact with each other in such a way that the rotational and/or translational displacement of the sleeve with respect to the plug portions is limited.

A method of sensing ground contact with a lower limb prosthetic or orthotic device is provided. A first translational displacement between a frame and a connector can be sensed and then processed to identify an axial load caused by heel-ground contact. Additionally, a second translational displacement between the frame and the connector can be sensed and then processed to identify a torsional load caused by toe-ground contact.

The invention relates to a method for indirectly measuring dynamic flexibility of a corner in the technical field of vibration test. The method comprises the following steps that: two more measuring points are arranged close to a point to be measured, and the three points are collinear and distributed in equal distance; a harmonic concentrated moment is replaced by a harmonic concentrated force system to express the corner into a linear combination of translational displacement based on the equivalence principle of the harmonic concentrated force system and a one-order three-point- numerical differentiation formula of the corner; and finally, the dynamic flexibility from the concentrated moment to the corner is expressed by the dynamic flexibility linearity from concentrated force to the translational displacement, and the corner flexibility can be indirectly measured by measuring the dynamic flexibility from the concentrated force to the translational displacement. The invention is an indirect measuring method which can construct the dynamic flexibility of the corner only by measuring a plurality of dynamic flexibilities from the concentrated force to the translational displacement by adopting a hamper test or a frequency sweep test without adding a mass block for the structure, applying the concentrated moment, nor even applying the balanced concentrated force system .

The invention discloses a vision-based six-degree-of-freedom small displacement detection method. A rectangular visual target is arranged on the upper surface of an object to be detected, and a firstcollimating light source is arranged on the upper surface of the object to be detected, generates a first light spot on a first light receiver and conducts imaging on the rectangular visual target; the translation values Tx and Ty of the object to be detected are obtained according to the translation of an image of the rectangular visual target, and the rotational displacement value Rz of the object to be detected is obtained according to the rotation of the image of the rectangular visual target; the rotational displacement values Rx and Ry of the object to be detected are obtained accordingto the displacement of the first light spot; a planar reflection mirror is arranged at the position, deviating from the visual target, of the upper surface of the object to be detected, a second collimating light source is arranged above the object to be detected, collimating light emitted by the second collimating light source is reflected by the reflection surface and then received by the sensitive surface of a second light receiver, and the translational displacement value Tz of the object to be detected is obtained according to the displacement deltaYs of a second light spot. The method has the advantage that the accuracy of detecting six-degree-of-freedom displacement is high.

The invention relates to the technical field of civil engineering, in particular to a translational soil pressure measuring-mode testing device which comprises an outer groove, an inner groove, an upper loading component, a lower loading component, multiple soil pressure measuring elements and a displacement measuring element. A transverse load-bearing body is positioned in a soil body, the soil pressure measuring elements are embedded in the soil body on the side face of the transverse load-bearing body, the displacement measuring element is arranged on the transverse load-bearing body, the upper loading component and the lower loading component are arranged horizontally and positioned on a same side of the transverse load-bearing body, one end of the upper loading component is abutted against the side wall of the outer groove while the other end of the same is connected with the top of the transverse load-bearing body, and one end of the lower loading component is abutted against the side wall of the outer groove while the other end of the same is connected with the bottom of the transverse load-bearing body. The upper loading component and the lower loading component load actions at the same time and push the transverse load-bearing body to move transversely by means of translation, so that soil pressure distribution law of the side face of the transverse load-bearing body under a translational displacement mode can be acquired through the soil pressure measuring elements and the displacement measuring element.

A seat component to prevent whiplash injury during a rapid motion change of a vehicle comprises means allowing a displacement of the seat and a person sitting thereon backwards (22) in relation to the direction of movement at the motion change. These means comprise a body (11, 18) to be affixed to or being part of the seat, a slide element (16) affixed to the vehicle and being in guiding contact with said body to guide a translational displacement of the seat over a predetermined distance. It further comprises a trigger system (13) to detect a acceleration threshold, a release mechanism (14) controlled through the trigger system (13) to enable said translational displacement (22) and a damping component (17) to damp said translational displacement (22). The trigger system (13) opens the release mechanism (14) only upon detection of an acceleration value above a predetermined threshold. The NIC experienced when using a conventional seat can be reduced by 40% if said seat is equipped with the device according to the invention.

Electric tweezers 1 includes a gripping member 13 for releasing/gripping an object, a base member 11 having an engagement portion to be engaged with the one end portion of the gripping member, a holder member 62 for fixedly coupling one end portion of the gripping member 13 and having a penetrating hollow cylindrical portion, a switch 57 for rotating and stopping a motor, a transformation mechanism 30 coupled with a shaft 52a of the motor 52 for transforming a rotation of the motor 52 in one direction into a quantity of translational displacement in a predetermined reciprocating direction with respect to the other end portion 13g of the gripping member, and an attaching section for attaching the base member 11 to a plurality of different positions relative to the holder member 62.

Apparatus are disclosed for coupling integrated segments of an assemblage. The coupler apparatus includes a carrier connectable to one segment and slidably receiving another segment and has an elongate slot defined at one wall portion of a cavity therein. A restraint includes a conic wedge receivable in the carrier and has an actuator arm angularly extending from the wedge that is receivable through the elongate slot of the carrier.