3188 results about "Cantilevered beam" patented technology

A piezoelectric device connected to a vibration source converts vibration energy to electrical current. A plurality of pairs of oppositely polarized piezoelectric wafers deflect to produce an electrical current. Each pair of wafers are arranged back-to-back and electrically joined together. The plurality of pairs of wafers are each connected to a set of micro-machined parts. Each pair of wafers form a bimorph, configured as a cantilevered beam attached to a set of parts to form an element. Each cantilevered beam has a mass weighted first end and is fixedly attached to one or more flexible sheaths on a second end. A plurality of elements form a cell unit. A plurality of cell units form an array. The electrical current produced varies by the number of elements per cell unit, and/or with the number of cell units per array.

A coaxial transmission medium connector is provided for connecting to a coaxial transmission medium to form a coaxial conduction path, wherein the coaxial transmission medium has an inner conductor and an outer conductor. The coaxial transmission medium connector includes an outer conductor portion for electrically coupling to the outer conductor of the coaxial transmission medium. The outer conductor portion includes a base portion, a plurality of cantilevered beams, and a plurality of slots extending substantially circumferentially about a substantially non-conductive cavity and substantially about a longitudinal axis extending through the cavity. Each of the cantilevered beams is coupled to the base portion at a transition portion and terminates at a distal end. Each of the cantilevered beams has a respective tapering profile with respect to the longitudinal axis that tapers in a direction away from the base portion. A center conductor portion is disposed within the cavity for electrically coupling to the inner conductor of the coaxial transmission medium. Related apparatus and methods are provided.

It is an objective to achieve a MEMS switch which can be mounted with a CMOS circuit and has a contact point with high reliability, both mechanically and electrically. An insulator having a compatibility with a CMOS process is formed at the contact surface of a cantilever beam constituting a MEMS switch and a fixed contact 2 opposite thereto. When the switch is used the cantilever beam is moved by applying a voltage to the pull-in electrode and the cantilever beam. After the cantilever beam makes contact with the fixed contact, a voltage exceeding the breakdown field strength of the insulator is applied to the insulator, resulting in dielectric breakdown occurring. By modifying the insulator once, the mechanical fatigue concentration point of the switch contact point is protected, and a contact point is achieved as well in which electrical signals are transmitted through the current path formed by the dielectric breakdown.

An electrical connector includes an insulative housing defining a mating cavity, two parallel and stacked mating portions respectively forwards extending into the mating cavity, sets of contact retained in the housing and a grounding member retained in the housing. The first mating portion defines thereon a first surface; the second mating portion spaces from the first mating portion and defines thereon a second surface opposite to the first surface. The sets of contact include a first set of contacts each defining a contacting section exposed upon the first surface and a second set of contacts each defining a deflectable cantilevered beam accessible from the second face. The grounding member is disposed between the first and second mating portions to reduce the cross-talk between the first and second sets of contacts.

A novel forward-facing, aft-attached cantilever beam is provided as a latch for securing a fiber optic connector to a receptacle. The beam has engagement structure on its free end which attaches to the receptacle. The connector includes a plug housing formed from a member having a forward end and a rearward end and an axial passageway therethrough through which at least one optical fiber provided in the fiber optic cable extends. The forward end is inserted into the receptacle with the rearward end extending from the receptacle. The cantilevered beam has an end fixed to a rearward portion of the member and its free end extends forwardly toward the forward end of the member. To engage the connector with the receptacle, the free end of the cantilevered beam is biased toward the member and the member is slid into the receptacle. Once fully inserted, the engagement structure on the cantilevered beam engages retention structure in the receptacle. The connector can be released from engagement with the receptacle by biasing the cantilevered beam such that the engagement structure on the beam is released from the retention structure of the receptacle and thereafter pulling the connector out of the receptacle.

The present invention relates to a wiper coupler for connecting a wiper blade assembly to a wiper arm including a pair of sidewalls with each sidewall including an aperture aligned with respect to the other. Each aperture is adapted to operatively receive a transversely extending pin of a wiper arm. The wiper coupler further includes a platform disposed between the sidewalls. The platform has a super-surface and a subsurface where the super-surface includes a rest portion adapted to operatively receive a portion of a wiper arm and the subsurface includes a pair of cantilevered beams depending therefrom and adjacent to the sidewalls. The cantilevered beams are adapted to operatively engage a portion of a wiper assembly.

The invention discloses a microwave power sensor with a multi-cantilever structure. The microwave power sensor comprises a substrate, and a micro-strip line, a cantilever anchoring region and a plurality of pressure welding blocks, which are arranged on the substrate, wherein the cantilever anchoring region and the pressure welding blocks are arranged on the two sides of the micro-strip line respectively; a plurality of cantilevers which are parallel to one another and hung in the air are arranged above the micro-strip line; the cantilevers and the micro-strip line are vertical and have different lengths; and one end of each cantilever is arranged on the cantilever anchoring region, and the other end of each cantilever are correspondingly hung above one pressure welding block. According to the microwave power sensor, the displacements of the cantilevers are caused by the attraction of the microwave power transmitted on the micro-strip line to the cantilevers of different lengths, and the measurement of the microwave power transmitted on the micro-strip line is realized by detecting the number of the cantilevers of different lengths, which are placed in parallel and contacted with the pressure welding blocks, so that the sensitivity of the power sensor can be improved, the structure can be simplified, digital output is realized, and the error range is controlled.

The invention provides a method of detecting a chemical species with an oscillating cantilevered probe. A cantilevered beam is driven into oscillation with a drive mechanism coupled to the cantilevered beam. A free end of the oscillating cantilevered beam is tapped against a mechanical stop coupled to a base end of the cantilevered beam. An amplitude of the oscillating cantilevered beam is measured with a sense mechanism coupled to the cantilevered beam. A treated portion of the cantilevered beam is exposed to the chemical species, wherein the cantilevered beam bends when exposed to the chemical species. A second amplitude of the oscillating cantilevered beam is measured, and the chemical species is determined based on the measured amplitudes.

The measurement transducer includes: A measuring tube vibrating at least at times during operation and serving for the conveying of a medium, wherein the measuring tube communicates with a pipeline via an inlet tube piece at an inlet end and an outlet tube piece at an outlet end; a counteroscillator, which is affixed to the measuring tube on the inlet end to form a first coupling zone and affixed to the measuring tube on the outlet end to form a second coupling zone; and a first cantilever for producing bending moments in the inlet tube piece and coupled with the inlet tube piece and the measuring tube essentially rigidly in the area of the first coupling zone and having a center of mass lying in the region of the inlet tube piece, as well as a second cantilever for producing bending moments in the outlet tube piece and coupled essentially rigidly with the outlet tube piece and the measuring tube in the region of the second coupling zone and having a center of mass lying in the region of the outlet tube piece. The measurement transducer of the invention is especially suited also for measuring tubes having large nominal diameters of more than 50 mm.

A pressure sensor assembly comprised of a single and dual layer diaphragm with integrated force sensing flexure, such as a cantilever beam. Strain gages are positioned on the force sensing beam. The pressure forces the diaphragm to deflect. The deflection is constrained by the beam, which is compelled to bend. The bending induces strains in strain gages located on the beam. The strain gages are connected in a Wheatstone bridge configuration. When a voltage is applied to the bridge, the strain gages provide an electrical output signal proportional to the pressure. Composite diaphragm—beam pressure sensors convert pressure more efficiently and improve sensor performance.

The invention discloses a dandelion-like multi-directional broadband piezoelectric vibration energy collection device, comprising a multi-spherical support body, a vibration base and at least two cantilever beams, the vibration base is fixed to a surface of the multi-spherical support body, and each cantilever beam is fixed to the surface of the multi-spherical support body along different directions; the cantilever beam comprises an elastic metal conductive slice, an upper-layer piezoelectricity ceramic piece, a lower-layer piezoelectricity ceramic piece and a mass block, a fixing end of the elastic metal conductive slice is fixed to the surface of the multi-spherical support body, and the mass block is fixed to a free end of the elastic metal conductive slice, and the upper-layer piezoelectricity ceramic piece and the lower-layer piezoelectricity ceramic piece are respectively adhered to an upper surface and a lower surface of the elastic metal conductive slice in same direction. The dandelion-like multi-directional broadband piezoelectric vibration energy collection device can collect the vibration energy with relatively high efficiency no matter how vibration direction changes or when the vibration changes in multiple directions with multiple frequencies.

An actuator is provided. The actuator comprises a base portion, a cantilever beam connected to the base portion, and an actuator cell adjacent to the cantilever beam. The actuator cell comprises a first metal electrode positioned on the cantilevered beam, a second metal electrode positioned near the first metal electrode, and phase change material between the first and second metal electrodes, wherein the phase change material connects the first metal electrode to the second metal electrode, wherein applying a burst of energy to the phase change material causes the phase change material to change between an amorphous state and a crystalline state, causing the cantilevered beam to move between a first position and a target position, wherein the cantilevered beam remains at the target position upon removal of the energy.

An electrical connector (1) includes a housing (2) and conductive contacts (3) partially positioned in the housing. The housing has a base wall (20) and side wall (21). The top edge of the side wall has a thickness larger than other portion of the side wall. Each contact has a body portion (31) and a pair of cantilevered beams (32) extending from the body portion. A stabilizer (4) is assembled in the housing. The stabilizer provides a general flat planar surface (40) on a top and defines a number of cavities (41) exposed to the surface. The cantilevered beams extend through the cavities of the stabilizer and exposed partially outside the surface thereof.

The optical fiber grating sensor detecting pressure and temperature simultaneously consists of mainly free elastic cylindrical pressure transducer, cantilever beam mechanism, fiber grating, sealed part, end element and pre-tensed spring; protective casing and transmission fiber. The technological scheme is that two fiber gratings are fixed to the upper and the lower surface of the cantilever beamin the corresponding positions and connected to transmission fiber via one fiber coupler; that the triangular cantilever beam mechanism converts the radial information of the cylinder under the outer pressure into deflection of the cantilever beam and thus the variation of the Bragg reflection wavelength with temperature and pressure, and that differential measurement technology is used to solvethe cross sensitivity of fiber grating.

A surgical instrument for treating body tissues through narrow body passages employs an elongated cantilevered beam having a proximal end supported in a rigid block and a narrower distal end extendable through the narrow passages. One or more piezoelectric actuators are fixed to the beam surface and energized from an AC source through electrodes interspersed with the piezoelectric actuators to produce oscillatory motion of the beam distal end in multiple modes of movement with sensing electronics to monitor and control the distal mechanical movement. The oscillatory beam is assisted with cold plasma sterilization of the target tissue surface to be treated at the distal end.

The invention relates to the optical fiber sensor technical field, disclosing a cantilever beam-type optical fiber grating accelerometer. The accelerometer comprises an outer casing used as a support structure of the accelerometer, a support column used to fix a cantilever beam, a cantilever beam, a first lug boss and a second lug boss arranged at both ends of the upside of the cantilever beam, an optical fiber grating used to measure acceleration and a mass block arranged at one end or both end of the underside of the cantilever beam, wherein one end of the support column is fixed with the cantilever beam, while the other end is fixed with the downside surface of the accelerometer; both lug bosses are used to horizontally fix the optical fiber grating and ensures a certain space between the optical fiber grating and the cantilever beam; both ends of the optical fiber grating are respectively fixed on the first lug boss and the second lug boss on the cantilever beam with one end parallel to the surface of the cantilever beam passing through the hole on the sidewall of the accelerometer to extend outside the accelerometer; and the mass block is used to adjust the sensitivity and the natural vibration frequency of the accelerometer. The cantilever beam-type optical fiber grating accelerometer increases sensitivity and improves packaging technology.

The invention relates to a board band piezoelectric generating set. A plurality of socle beams L1, L2, L3 are divided into two groups; one end of each socle beam is fixed and the other end keeps free; the socle beams keep parallel with each other; a crossing section is arranged between the two groups of the socle beams; wherein, the socle beam consists of piezoelectric transduction elements (34, 36), a down-lead (31), a metal block (32) and electrodes (33, 35, 37). The electrodes and the transduction elements are alternately arranged; the down-lead (31) is arranged at the fixed end of the socle beam; the metal block (32) is arranged at the free end of the socle beam. The sizes and the structures of the socle beams L1, L2, L3 are different, the manufacture materials of the piezoelectric transduction elements are different and the qualities of the metal blocks are different, therefore, the resonance frequency of each beam is different. The two groups of the socle beams L1, L2, L3 are arranged in an interdigital structure in plane or an interdigital structure in space. The board band piezoelectric generating set can absorb the mechanical vibration or noise of a plurality of frequency components in the environment and realize the transformation from mechanical energy to electricity energy by the piezoelectric transduction elements so as to increase the generating capacity and improve the generating efficiency.

The invention relates to a piezoelectric-electromagnetic composite low-frequency broadband energy harvester, and belongs to the technical field of new energy and power generation. The piezoelectric-electromagnetic composite low-frequency broadband energy harvester is characterized in that piezoelectric bimorphs are fixed at the upper surface and the lower surface of a cantilever beam; the surfaces of the piezoelectric bimorphs are coated with silver; one end of the cantilever beam is fixed on a base of a vibration body, and the other end is pasted with a permanent magnet; two sides of the permanent magnet are provided with induction coils respectively; and two side magnets are placed behind the two induction coils respectively. According to the invention, the environment adaptability and the energy harvesting efficiency of the energy harvester are improved; and the energy harvesting bandwidth can be effectively expanded. The piezoelectric-electromagnetic composite low-frequency broadband energy harvester harvests energy under vibration conditions by using a piezoelectric effect and an electromagnetic effect, can generate large current and high voltage, effectively makes up defects of a piezoelectric or electromagnetic independent energy harvesting mode, can achieve simultaneous output of high voltage and high current by using an effective energy conversion circuit, and is more conducive to charging a rechargeable battery or a super-capacitor.

An electrical contact includes a first set of spaced apart cantilevered beams connected to a first rail, and a second set of cantilevered beams connected to a second rail. The first set of cantilevered beams project toward the second rail, and the second set of cantilevered beams project toward the first rail, wherein the first and second sets of cantilevered beams reside in alternating relationship. Each cantilevered beam is bowed and is outwardly tapered from its connected proximal to its unconnected distal end.

The present invention relates to a universal wiper adapter for connecting a wiper blade assembly to a wiper arm including a pair of sidewalls having an aperture and a land extending between the sidewalls cooperating to define a channel. The present invention further includes a cantilevered beam, between the sidewalls, having a super-surface and a subsurface each cooperating with the sidewalls to define an elongate passage and an elongate track, respectively. The channel and the elongate passage cooperate to receive two sizes of hook-type wiper arms, while the channel and the elongate track cooperate to receive three sizes of hook-type wiper arms. The present invention also includes a substrate between the sidewalls cooperating with the land and the apertures to receive two sizes of pin-type wiper arms. The substrate further cooperates with the sidewalls and the land to define an elongate cavity to receive a bayonet-type wiper arm.