Abstract: A horizontal linear vibrator includes: a bracket having a coil part with a hollow; a vibration unit including a yoke part having an accommodation space for accommodating the coil part therein and a passage hole formed to pass through the accommodation space; and a magnetic field unit including a magnet disposed in the accommodation space through the passage hole and providing an electromagnetic force to allow the vibration unit to horizontally move by an interaction of the coil part and the magnet.

Abstract: A horizontal linear vibrator includes: a bracket providing an internal space; a vibration unit mounted in the internal space and making a horizontal, linear movement; a magnetic field unit providing an electromagnetic force to allow the vibration unit to move horizontally; and a cover unit formed to cover an upper portion of the bracket, wherein the bracket includes a support plate part so as to support the vibration unit to make a horizontal, linear movement, and the cover unit is formed to overlap with the support plate part.

Abstract: A linear vibrator is disclosed. The linear vibrator includes a base, a coil unit, which is coupled to the base, a magnet, which is coupled to the coil unit such that the magnet can move relatively, and a plurality of leaf springs, which are interposed between the magnet and the base. Here, the plurality of leaf springs face one another and are coupled to one another Thus, the linear vibrator can increase the range of vibration displacement in a structure and increase the amount of vibration in the linear vibrator. Also, even though the linear vibrator becomes thinner, the range of displacement can be increased because the weight is vibrated horizontally.

Abstract: A magnetic vibrator including a first magnetic portion and a second magnetic portion is disclosed. The first magnetic portion includes an inner plate, a first magnet and a second magnet. The inner plate is disposed between the first magnet and the second magnet. The second magnetic portion includes a coil and a wrapper. The coil is disposed around the first magnetic portion and wrapped in the wrapper. The wrapper has a gap corresponding to the inner plate. An interval is configured between the first magnetic portion and the second magnetic portion. When a current is occurred in the coil, the first magnetic portion and the second magnetic portion are actuated to move axially with respect to each other.

Abstract: An electromagnetic vibration device includes a vibrating plate, a suspending frame, upper and lower basin frames, a voice coil, and a magnetic loop system. Multiple voice coil fixing slots are uniformly distributed on the circumference of the vibrating plate corresponding to the inserting pieces of the voice coil, and the inserting pieces are passed through the voice coil fixing slots of the vibrating plate and fixed to the vibrating plate. One end of the lead of the voice coil is embedded in a groove on back of the vibrating plate and connected to the terminal of the lower basin frame.

Abstract: Disclosed herein is a linear vibrator. The linear vibrator includes a casing defining an internal space. A vibratory unit is accommodated in the casing to vibrate up and down. A spring is mounted at an upper circumferential end thereof to an upper surface of the casing and secured at a lower end thereof to an upper portion of the vibratory unit, thus elastically supporting the vibratory unit. An annular locking ring has a larger outer diameter than an outer diameter of the vibratory unit and an outer diameter of the spring so that the upper circumferential end of the spring is locked to the casing through press-fitting. A bracket supports the casing and the vibratory unit, with a circuit board being mounted on the bracket.

Abstract: The present invention provides a horizontal linear vibrator which can reduce the thickness but increase vibration strength while at the same time guaranteeing a sufficiently long lifetime and satisfactory responsivity. The horizontal linear vibrator includes a casing, a bracket, a vibration unit and springs. The casing defines an internal space therein. The bracket is disposed under the casing. A cylindrical coil is provided on the bracket. The vibration unit has a magnet, a yoke and a weight. The yoke contains the magnet therein and is open on the lower end thereof. The weight is coupled to the outer surface of the yoke. The springs are coupled to sidewall plates of the casing or the bracket. The springs elastically support the vibration unit to allow the vibration unit to vibrate in the horizontal direction.

Abstract: The present invention provides a horizontal linear vibrator which can increase vibration strength while at the same time guaranteeing a sufficiently long lifetime and satisfactory responsivity. The horizontal linear vibrator includes a casing, a bracket, a vibration unit and springs. The bracket and the casing form the internal space therein. A coil is provided above the bracket such that the center axis thereof is oriented in a horizontal direction. The vibration unit is disposed through the coil and comprises a magnetic field generating unit and a weight. The magnetic field generating unit includes a magnet assembly and a yoke. The magnet assembly has magnets which are provided on opposite sides of a magnetic body core such that the similar magnetic poles of the magnets face each other. The weight is mounted to the magnetic field generating unit. The springs are coupled to the casing or the bracket and elastically support the vibration unit.

Abstract: A linear type vibration motor having a magnet casing is disclosed. The linear type vibration motor in accordance with an embodiment of the present invention includes a magnet assembly having a pair of magnets, in which same magnetic poles thereof face each other, a magnet casing, which has a hollow part formed therein and houses the magnet assembly in the hollow part, a base, which has a bobbin formed thereon and in which the magnet casing is inserted into the bobbin, a coil, which is coupled to the bobbin, a weight, which is coupled to both ends of the magnet casing, and a pair of elastic bodies, which are interposed between either end of the base and either end of the weight, respectively. Thus, the operating lifetime of the linear type vibration motor can be extended, and this arrangement can prevent the linear type vibration motor from being damaged by an external shock.

Abstract: A linear vibrator is disclosed. The linear vibrator includes a base, a coil unit, which is coupled to the base, a magnet, which is coupled to the coil unit such that the magnet can move relatively, and a plurality of leaf springs, which are interposed between the magnet and the base. Here, the plurality of leaf springs face one another and are coupled to one another Thus, the linear vibrator can increase the range of vibration displacement in a structure and increase the amount of vibration in the linear vibrator. Also, even though the linear vibrator becomes thinner, the range of displacement can be increased because the weight is vibrated horizontally.

Abstract: A linear vibrator is disclosed. In accordance with an embodiment of the present invention, the linear vibrator includes a base, a coil unit, which is coupled to the base, a magnet, which is coupled to the coil unit such that the magnet can move relatively with respect to the coil unit, and a leaf spring, which is interposed between the magnet and the base and includes a plurality of plate-shaped members having center portions thereof being separated from one another and both respective ends thereof being coupled to one another. Thus, the linear vibrator can increase the range of displacement in the leaf spring and increase the magnitude of vibration in the linear vibrator.

Abstract: An electromechanical generator for converting mechanical vibrational energy into electrical energy, the electromechanical generator comprising a housing, an electrically conductive coil assembly movably mounted in the housing, the coil assembly having radially inner and outer sides, and upper and lower edges, thereof, a mount for the coil assembly extending inwardly of the radially inner side for mounting the coil assembly for linear vibrational motion along an axis about, a first biasing device mounted between the housing and the mount to bias the electrically conductive coil assembly in opposed directions along the axis towards a central coil position, a magnetic core assembly movably mounted in the housing for linear vibrational motion along the axis, and a second biasing device mounted between the housing and the magnetic core assembly to bias the magnetic core assembly in opposed directions along the axis towards a central magnet position, wherein the magnetic core assembly encloses the electrically cond

Abstract: An electromechanical generator for converting mechanical vibrational energy into electrical energy, the electromechanical generator including a cantilever spring having a fixed end, a free end and a central portion therebetween, a mount for the cantilever spring to which the fixed end is fixed, a mass located at the free end of the cantilever spring, the mass including either a coil or at least one magnet defining a region of magnetic flux, wherein at least one of the fixed end and the free end of the cantilever spring is substantially stiffer than the central portion of the cantilever spring.

Abstract: Disclosed herein is a vibration generation module capable of generating inertial and impact vibrations. The vibration generation module includes a magnetic force generation unit, an elastic force provision unit, a permanent magnet, a contactor, and an impact transmission panel.

Abstract: The present invention provides a linear vibrator which can enhance the assembly accuracy and prevent a vibration unit from coming into direct contact with a coil or a casing. The linear vibrator includes a vibration unit, a casing, a bracket and a spring member. The vibration unit includes a plate yoke which has a weight on an upper surface thereof, and an annular magnet which is provided on the plate yoke and surrounds the weight. The casing has an internal space for receiving the vibration unit therein. The bracket is coupled to the lower end of the casing. A cylindrical coil is provided on the bracket such that the vibration unit linearly vibrates in the cylindrical coil. The spring member is provided in the upper end of the casing to elastically support the vibration unit such that the vibration unit linearly vibrates.

Abstract: The present invention provides a linear vibrator comprising a weight having an auxiliary magnet which is provided in a lower end of the weight and generates magnetic force with respect to the bracket. Therefore, a magnetic attractive force between auxiliary magnet and the bracket prevents undesirable fine vibrations and prevents the vibration unit from coming into direct contact with the casing.

Abstract: A linear vibration motor according to an aspect of the invention may include: a case having a cavity to receive a mass therein; a movable part generating a magnetic field inside the case and moving in a transverse direction while being secured to the mass; a coil part generating a force, by which the mass performs a linear reciprocating motion, by interaction with the magnetic field generated from the movable part upon receiving power; and a support plate dividing the cavity in which the coil part is mounted to face the movable part.

Abstract: A linear vibrator is disclosed. The linear vibrator includes a housing having a base and a cover, a number of elastic members connected to the housing, a vibrating unit suspended in the housing by the elastic members, and a coil positioned in the housing. The base has a bottom wall and a plurality of sidewalls extending vertically from the bottom wall. The vibrating unit has a magnet assembly and vibrates along a direction parallel to the bottom wall.

Abstract: An electromechanical generator for converting mechanical vibrational energy into electrical energy, the electromechanical generator including a cantilever spring having a fixed end, a free end and a central portion therebetween, a mount for the cantilever spring to which the fixed end is fixed, a mass located at the free end of the cantilever spring, the mass including either a coil or at least one magnet defining a region of magnetic flux, wherein at least one of the fixed end and the free end of the cantilever spring is substantially stiffer than the central portion of the cantilever spring.

Abstract: An electromagnetic vibrator includes a vibration sheet, suspension edge, basin frame and magnetic return path system. The electromagnetic vibrator is prepared as connecting back surface of vibration sheet to voice coil being set in magnetic return path system, injecting the vibration sheet and suspension edge to be an integral unit, connecting suspension edge with basin frame by ultrasonic mode and connecting vice coil wire to terminal sheet on basin frame after the wire is connected by vibration sheet.

Abstract: A driving apparatus (100j) is provided with: a base portion (110); a stage portion (130) on which a driven object (12) is mounted and which can be displaced; an elastic portion (120) which connects the base portion and the stage portion and which has elasticity to displace the stage portion in one direction (Y axis); a first applying device (161, 162, 22) for applying an excitation force for displacing the stage portion such that the stage portion is resonated in the one direction at a resonance frequency determined by the stage portion and the elastic portion; and a frequency adjusting device (170) for dynamically adjusting the resonance frequency.

Abstract: Disclosed is a vibration motor for a portable terminal, including a flat spring; a cylindrical magnetic substance mounted on the flat spring; an annular magnetic substance disposed around the cylindrical magnetic substance mounted on the flat spring; and a coil disposed between the cylindrical magnetic substance and the annular magnetic substance, wherein the magnetic substances perform a linear reciprocal movement by the electromagnetic force generated between the magnetic substances and the coil and by the elastic force of the flat spring as an electric current is applied to the coil. The vibration motor operates at higher resonant frequencies than those of conventional vibration motors, thereby improving the sense of an after-vibration and realizing a delicate haptic feedback function.

Abstract: A vibration motor includes a first resilient member and a second resilient member providing resilient forces in opposite directions; a first vibrator and a second vibrator coupled to the first resilient member and the second resilient member respectively; a magnetic body coupled to the first vibrator to create a magnetic field; and a coil applying a current of a predetermined frequency band in the region where the magnetic field is created.

Abstract: Disclosed is a subminiature linear vibrator including a stationary body (100) formed by installing a printed circuit board (10), on which a ring-shaped field coil (12), at least one resonant passive element (14), and a frequency generating control chip (16) are mounted, on a lower case (6) of a main body, the main body including upper and lower cases (4, 6); and a movable body (200) formed by mounting a ring-shaped balance weight (22) and a ring-shaped permanent magnet (24) on the lower surface of a bracket (20) having an air flow hole (21) formed therethrough and connecting an elastic spring (26) to the lower surface of the upper case (4) and an air flow hole peripheral portion (20a) of the bracket (20), wherein the ring-shaped permanent magnet (24), magnetized with two poles vertically located at upper and lower portions thereof, is disposed adjacent to the ring-shaped field coil (12).

Abstract: A permanent magnet generator induces induction electromagnetic charge at the tip of the conductor with variable cross section using the permanent magnetic field and outputs induction electromagnetic charge current and electrical energy so as to be able to generate electricity permanently without any external energy. The permanent magnet generator includes an induction electromagnetic charge generator (4), an induction electromagnetic charge conductor (I, K), an induction electromagnetic charge attractor (17, 32), an induction electromagnetic charge escape emitter (7), and an induction electromagnetic charge receiver (24, 25) etc.

Abstract: In accordance with the present invention, a vibrator including a case; an elastic member installed inside the case and made of shape memory alloy of which physical properties are varied as power is applied from an outside of the case; a vibrating body elastically installed inside the case by the elastic member; and a coil installed inside the case and vibrating the vibrating body as the power is applied from the outside.

Abstract: A thin electromagnetic exciter has a flat casing including a casing body (2) and a cover (3), a stator (10) including an electromagnet having a coil wound around a yoke, and an oscillator (20) including a bar-shaped permanent magnet and a weight integrally attached thereto. The stator and the oscillator are disposed adjacently over a bottom wall portion (2c) of the casing body. The stator is secured to the casing body. The oscillator is vibratably supported relative to the casing body through resilient support members.

Abstract: An ambient energy harvesting system, and method of use thereof, includes a magnetic flux-generating assembly (28), a coil (30) positioned adjacent to the magnetic flux-generating assembly (28), and a cantilevered arm (24). Vibration of the cantilevered arm (24) enables relative movement between the magnetic flux- generating assembly (28) and the coil (30) to generate an electric current in the coil (30). An effective flexible length (L) of the cantilevered arm (24) is selected such that applied kinetic energy causes the cantilevered arm (24) to vibrate at approximately its resonant frequency.

Abstract: A mechanical micro system comprising a flexible bending beam extending along a direction, and at least one magnetic element for creating a magnetic field. The flexible beam includes: a first circuit having a first topology for generating, in response to one current flowing through the first circuit, a force having an effect on the beam at one particular place so as to cause a first vibratory mode; a second circuit having a second topology for generating, in response to one current flowing through the second circuit, a force having an effect on the beam at one particular second position so as to cause a second vibratory mode.

Abstract: Chassis part of a vehicle, with a magnet (2) and at least one electric coil (10), which interacts with the magnetic field generated by the magnet (2), wherein the magnet (2) and the coil (10) are mobile in relation to one another. The chassis part (13) can perform vibrations with at least one natural frequency, wherein the magnet (2) is fastened to a spring (8) and is mobile relative to the coil (10), and wherein the natural frequency of the oscillator (14) having the magnet (2) and the spring (8) is tuned to the natural frequency of the chassis part (13).

Abstract: Energy conversion systems utilizing nanometer scale assemblies are provided that convert the kinetic energy (equivalently, the thermal energy) of working substance molecules into another form of energy that can be used to perform useful work at a macroscopic level. These systems may be used to, for example, produce useful quantities of electric or mechanical energy, heat or cool an external substance or propel an object in a controllable direction. In particular, the present invention includes nanometer scale impact masses that reduce the velocity of working substance molecules that collide with this impact mass by converting some of the kinetic energy of a colliding molecule into kinetic energy of the impact mass. Various devices including, piezoelectric, electromagnetic and electromotive force generators, are used to convert the kinetic energy of the impact mass into electromagnetic, electric or thermal energy.

Abstract: An electrical machine with a cooling system for the removal of waste heat includes a stator laminated core having a plurality of first sheet metal laminations stacked to form a first core part having a plurality of axial passages arranged on a reference circle which is concentric to a central axis, and a plurality of second sheet metal laminations stacked to form a second core part having a plurality of axial recesses which are also on the reference circle. The second core part abuts the first core part so that the passages are axially aligned with the recesses. Each passage receives a cooling duct which is connected to an adjacent cooling duct by a return element having radially extending legs received in respective axial recesses, the legs being connected by a peripherally extending center section. Where the stator laminated core is located centrally of a rotor hand has a concentric internal space, the center section of each return element is located in the internal space.

Abstract: A linear-force motor contains no moving parts and is powered by a high frequency generator. It is silent and vibration-free. It has no emissions except force and heat. It is not restricted to operating on a fixed track. No mechanical maintenance or lubrication is required. It can be completely sealed and therefore operate in extreme environments without degradation. A variation of this design can produce rotary motion.

Abstract: A vibration generator which is durable, provides strong thrust and is capable of being reduced in size, cost and weight includes a movable element (50) having a permanent magnet (60) attached thereto; a stationary element (10) having end faces (23), (25) which oppose, across prescribed gaps, respective ones of end faces (53), (54) of the movable element, with the stationary element being excited by passing a current through an attached coil (30) to form a magnetic path with the movable element; and resilient support members (80) for supporting the movable element so that the movable element can vibrate in a direction in which the stationary element is magnetized by the coil.

Abstract: An alternating current circuit breaker having an extended fin cantilevered from its housing. A portion of the fin along its extended length is magnetized so that the fin flutters in the magnetic field generated by the alternating current conducted through the breaker. The resulting magnetic resonance vibration establishes forced, convective heat transfer which assists cooling of the breaker.

Abstract: A small-size, thin-profile vibration generating device capable of functioning with improved durability and reliability and with less consumption of power includes a yoke constituting an electromagnet on which a coil has been wound, and a movable element having permanent magnets. The movable element is disposed in a gap, which is provided in the closed magnetic circuit of the yoke, in such a manner that both end faces of the movable element form prescribed gaps with end faces of the yoke. The movable end of a leaf spring is attached to the movable element. The other, fixed end of the leaf spring is attached to the center of the yoke. When the movable element vibrates in the gap, magnetic poles at the end faces of the yoke approached by the end faces of the movable element are magnetically energized by flow of a current in order to be made identical with magnetic poles at the end faces of the movable element, thereby repelling the movable element.

Abstract: A rare earth-cobalt supermagnetostrictive alloy having a composition represented by the general formula, in atomic fraction: R (Co.sub.1-x Fe.sub.x).sub.x, wherein 0.001.ltoreq.x.ltoreq.0.8, 0.2.ltoreq.z.ltoreq.15, and R is at least one element selected from the group consisting of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu and is consisting essentially of a cubic system whose easy axis of magnetization is generally <100> or <110> oriented; or R (Co.sub.1-x Fe.sub.x).sub.x, wherein 0.001.ltoreq.x.ltoreq.0.8, 0.2.ltoreq.z.ltoreq.15, and R is at least one element selected from the group consisting of Sc, Y, La, Ce, Pr, Nd, Sm, Gd, Dy, Er, Yb, and Lu. Such an alloy exhibits satisfactory magnetostriction in a wide range of temperatures from room temperature to liquid nitrogen temperature.

Abstract: A cooling fan for dissipating heat requiring relatively little electrical power to operate. The fan includes a fan blade, constructed from flexible metal or plastic, anchored at one end and having a permanent magnet mounted at the other end. An external drive mechanism, such as a position sensor or an oscillator, provides a drive pulse to the coil. The fan blade is placed in motion by energizing a coil which is disposed about a core constructed of magnetically permeable material and positioned adjacent the magnet. Upon energization of the coil, the magnet mounted on the blade reacts to the magnetic field generated by the coil, causing the blade to move away from the coil. When the magnet, due to the flexibility of the fan blade, moves back towards the coil, a voltage is induced in the coil by the magnet, thus causing current to flow through the coil to apply a kick or power pulse of magnetic energy to the magnet. This process continues as the blade moves from side to side.

Abstract: In a super magnetostriction type actuator constructed such that a super magnetostriction rod is extended/contracted by application of a magnetic field from a solenoid coil, and a drive object is moved in response to the extension/contraction, a locating member for locating the super magnetostriction rod thermally deforms in correspondence with a thermal expansion of the super magnetostriction rod so as to permit an extension of the super magnetostriction rod due to the thermal expansion thereof. As a result, variation in spring loading and lift with thermal expansion of the super magnetostriction rod can be avoided. Also, the magnetostriction characteristic of the locating member is opposite that of the super magnetostriction rod allowing for greater relative movement of the super magnetostriction rod upon application of a magnetic field.

Abstract: A self-powered back-up alarm for mounting to the wheel hub of a heavy truck or like vehicle. The alarm includes a housing adapted to be mounted to a vehicle wheel hub. Inside the housing is a magnetized stator that is held stable by a counterweight mounted for free rotation to a spindle in the housing. Also mounted in the housing is a power supply including a coil positioned adjacent the stator in the housing and attached thereto so that it rotates about the stator when the wheel hub turns. A battery stores the energy developed across the coil when the wheel hub rotates. Also mounted inside the housing are sensors located adjacent the stator that similarly rotate with the wheel hub. The sensors, in combination with an associated detect circuit, produce a reverse motion signal whenever the vehicle backs up. An audio alarm, located in the housing, is actuated by the reverse motion signal and emits an audible warning whenever the vehicle backs up.

Abstract: A monolithic resonator for a vibrating beam accelerometer is provided which comprises an outer structure including a mounting structure, a proof mass structure, a plurality of flexure beams extending between the mounting and proof mass structures; and an inner structure including first and second isolator masses, first and second isolator beams connected to one portion of the isolator masses, respectively, and a vibrating beam extending between other portions of the isolator masses. The monolithic resonator is non-planar in that the outer structure has a thickness greater than said inner structure.

Abstract: A vibrating type transducer wherein an H-shaped vibrator, formed integrally with a silicon substrate and having a hollow chamber provided therearound, is kept self oscillating at its natural resonance frequency together with an amplifier. A physical quantity, such as force, pressure, differential pressure, or the like, which is applied to the silicon substrate is detected by a change in the natural frequency arising at the vibrator corresponding to the physical quantity. The invention also includes a method for manufacturing such transducer using a semiconductor technique, including steps for keeping a vacuum internally in the hollow chamber, imparting an initial tension to the vibrator, and then operating the amplifier to have stable self oscillation.

Abstract: An audio frequency electromechanical vibrator comprising a flat plate permanent magnet magnetized in a predetermined direction and a coil wound around the permanent magnet for crossing the direction of magnetization. The permanent magnet and coil are fixedly disposed in a yoke which is elastically supported in a case through a spring plate. The case partly consists of a magnetic plate which is placed for opposing the permanent magnet to form a magnetic flux circuit, whereby the vibrator can generate a vibration corresponding to an audio signal applied to the coil.

Abstract: A resonator device comprises an elastic beam driven electrostatically at its natural frequency, or an harmonic thereof, by voltage pulses applied to an integral paddle member. The voltage pulses are derived from optical pulses fed via an optical fibre and reflected from the paddle member to a photodiode array. There is thus minimal coupling between the beam and the drive system. A positive feedback loop is provided in which light retroreflected from the paddle member is recaptured by the optical fibre and electronically detected, amplified and fed back in phase with the beam oscillations by modulating the optical pulses.

Abstract: An improved method and apparatus are provided for making vibration sensors, particularly of the type used in automotive applications wherein a piezoelectric element is affixed to a flexing plate which is mounted on a support stem in "umbrella" fashion. A desired resonant vibrating frequency of the sensor is obtained by progressively working a neck portion of the support stem, as by peening, to effectively decrease the vibrating radius of the plate and thus increase its resonant frequency toward and to a desired resonant frequency. The plate's frequency is monitored and the working of the stem neck portion is terminated when a desired resonant frequency is attained. An inclined support shoulder on the stem below the neck portion facilitates the aforementioned manufacture. An undercut positioned in the stem neck portion near its transition into the support shoulder further facilitates the manufacture.

Abstract: An electromechanical magnetic transducer with a moving armature having (1) substantially pure translational adjustability, or (2) adjustability characterized by a substantially definite pre-chosen ratio of rotation to translation. The armature comprises an armature leg and an armature support yoke having plastically deformable yoke arms. A yoke arm comprises a pair of struts that are mutually inclined to provide a toggle-like action upon application of an adjusting force, such action opposing or enhancing the tendency of the support of the armature leg to rotate.

Abstract: A single beam force transducer is provided with integrally affixed isolation springs which are axially compliant and unbalanced in their spring rates so as to induce beam bending due to applied tension and compression. The amount of bending introduced due to applied tension will be of a precise magnitude so as to substantially cancel undesirable non-linear vibration effects.

Abstract: A single beam force transducer has a beam characterized by a thickened central portion and tapered outward portions. The support members of the transducer are thickened and are thus stiffer while the isolator masses are shortened. These critical configuration changes raise the undesirable "tuning fork" resonant frequency of the beam supporting structure far above that of the beam and ensures that the isolating structure behaves as a rigid body.

Abstract: In the present invention, a novel magnetic circuit maximizes the electrical power generated upon manual actuation of a push-button switch while minimizing the required weight of the magnetic materials. In particular, the magnetic circuit of the power supply of the present invention includes the following magnetic materials: an unmagnetized core (comprising iron) around which a coil is wound, the coil being connected to supply power to the transmitter; a permanent magnet (comprising iron having a permanent magnetic moment) mounted on a vibrating reed, at least one pole of the permanent magnet facing at least one end of the core. Actuation of the push-button switch induces oscillatory motion of the reed and of the permanent magnet. An advantage of this novel magnetic circuit is that, in at least one embodiment, the oscillatory motion of the permanent magnet causes a complete flux reversal through the coil during each cycle of the mechanical oscillation of the reed, a significant advantage.

Abstract: An electromechanical magnetic transducer with a moving armature that is adjustable relative to the working gap. The armature comprises an armature leg, crosspiece, and yoke arms, the adjustment being accomplished by inelastic distortion of the yoke arms. Substantially translational movement of the intrinsic position of the armature leg during adjustment is achieved by providing in each yoke arm one or more struts that undergo S-shaped distortion upon application of adjusting forces in appropriate directions. The structures are further adaptable for rotational adjustments of the armature leg in the gap.