176results about "Measurement apparatus for damping movement parts" patented technology

A stabilized field sensor apparatus collects field data, in particular magnetic field data, with reduced motion noise. The apparatus includes a tear drop shaped housing, a tow frame in the housing, a plurality of vibration isolating dampers spaced around the frame, a base assembly mounted to the dampers, a support pedestal having a bottom end fixed to the base assembly and an upper free end, a single spherical air bearing connected to the upper free end of the pedestal, an instrument platform with a lower hollow funnel having an upper inside apex supported on the air bearing for a one point support, principal and secondary gyro stabilizers for maintaining pivotal and rotational stability, and at least one field sensor mounted to the instrument platform for collecting the field data while being stabilized against motion noise including vibration, pivoting and rotation from the base assembly, from the tow frame and from the housing. Stabilization of the instrument platform is enhanced by preserving accurate balance through a dynamic balancing system whereby small masses are moved under computer control to maintain the center of mass of the instrument platform at the center of rotation of the spherical air bearing. The dynamic stabilization process is made more precise by actively vibrating the instrument platform by a set of linear vibrators.

A sensor component having a housing and a sensor chip situated in it. The sensor chip is connected mechanically to the housing via at least one elastomer element. In addition, the sensor chip is also connected electrically to the housing via the at least one elastomer element.

There is described a support system enabling supporting an object such as a platform (1) free from vibration, in that bearing elements (50) have a stiffness (k) which at a working point (z0) equals zero. A bearing element (50) comprises two magnectic couplings (51, 52) provided by permanent magnets (61, 63). One coupling (51) has a positive stiffness (k51), and the other coupling has a negative stiffness (k52); in the working point, the absolute values of those stiffnesses are equally great. Alternatively, electrostatic couplings are used.

The invention discloses a deep sea full-section observing turbulent mixing section plotter which comprises an instrument bin and a probe bin. The instrument bin and the probe bin adopt the split design, a flexible damping coupling frame is connected between the instrument bin and the probe bin, the flexible damping coupling frame comprises a plurality of supporting rods, one ends of all supportingrods are connected to a fixing ring, the fixing ring and the instrument bin are connected, the other ends of all the supporting rods are connected to a probe protecting ring, all the supporting rodsform a protecting space, the probe bin is arranged inside the protecting space, and electric devices between the probe bin and the instrument bin are connected through a watertight cable; a pluralityof weights are arranged on the flexible damping coupling frame, a floating body material block is arranged outside the instrument bin, and all the weights and the floating body material block are allcontrolled by a load rejection mechanism to be released. By freely adjusting the observation position of the probe bin, direct observation of the full section from the sea interface to the seabed boundary layer is achieved; meanwhile, the two bins are flexibly connected, and the interference caused by self-vibration can be lowered.

A technique for actively damping internal vibrations in a scanning probe microscope is disclosed. The excitation of various mechanical movements, including resonances, in the mechanical assembly of an SPM can adversely effect its performance, especially for high speed applications. An actuator is used to compensate for the movements. The actuator may operate in only the z direction, or may operate in other directions. The actuator(s) may be located at positions of antinodes.

Since rotation of a rotor gear which rotates integrally with a steering shaft is made to reduce by a speed reduction system constituted by a planetary gear system, and rotation after the speed reduction is made to be transmitted to a speed reduction side detecting gear, transmission efficiency of the rotation is improved, and since shafts of respective gears constituting the speed reduction system are directed to the same direction, the rotation of the steering shaft can be transmitted to the speed reduction side detecting gear with reduced clattering. Accordingly, since the clattering at the speed reduction system is reduced, the rotational angle of the steering shaft can be detected more accurately.

A sensor apparatus (104) includes a plural different spatial direction axis of sensitivity positioned sensor package containing sensor module (305) supported by a planar surface (345) within a cavity (340) of a housing (205) coupled to a first end cap (210) by a PC-board connection (355). Housing (205) is further coupled to first end cap (210) by a first coupling member (315) and a second coupling member (320) and is also coupled to an opposite second end cap (215) by a third coupling member (320) and a fourth coupling member (325). Interface sealing members (330a, 330b, 330c, 330d) seal between housing (205) and first end cap (210). Interface sealing members (335a, 335b, 335c, 335d) seal between housing (205) and second end cap (215).

A holding device for an ultrasonic transformer having a diaphragm cup, in particular for a motor vehicle, includes the following: a housing to accommodate the diaphragm cup; a decoupling component to position the diaphragm cup on the housing and on a holding section in vibration-damped manner; and a filler material to connect the diaphragm cup and the decoupling component to the housing in a vibration-damped and sealing, form-fitting manner, the decoupling component sealingly filling a gap between an edge of an opening of the housing and the diaphragm cup, as well as a corresponding method.

A probe for a coordinate measuring machine has a stationary first part and a second part which can move relative to said first part. The second part can be a feeler pin or a feeler pin extension of the probe. A damping member for damping vibrations of the moveable second part has a magnet arrangement for producing a magnetic field, and has a conductor element. The magnet arrangement is designed such that there is a change in direction of the magnetic field along a path of movement of the conductor element.

A holding device for an ultrasonic transformer having a diaphragm cup, in particular for a motor vehicle, includes the following: a housing to accommodate the diaphragm cup; a decoupling component to position the diaphragm cup on the housing and on a holding section in vibration-damped manner; and a filler material to connect the diaphragm cup and the decoupling component to the housing in a vibration-damped and sealing, form-fitting manner, the decoupling component sealingly filling a gap between an edge of an opening of the housing and the diaphragm cup, as well as a corresponding method.

A probe for a coordinate measuring machine has a stationary first part and a second part which can move relative to said first part. The second part can be a feeler pin or a feeler pin extension of the probe. A damping member for damping vibrations of the moveable second part has a magnet arrangement for producing a magnetic field, and has a conductor element. The magnet arrangement is designed such that there is a change in direction of the magnetic field along a path of movement of the conductor element.

Displacement encoder for a moving shaft, comprising a sleeve intended to be fitted onto the shaft and at least one permanent magnet forming at least one polarized magnetic mark. An elastomer layer lies between the permanent magnet and the sleeve. This elastomer layer is adhesively bonded to the permanent magnet and to the sleeve. The invention also relates to a device for a moving shaft comprising such an encoder and to the method of manufacturing the encoder.

A structure and associated method to accurately read an encoder tape in an encoder system. The encoder system comprises, a read head, a shoe structure adjacent the read head, and an encoder tape. The encoder tape is adapted to be read by the read head. The shoe structure is adapted to locally support the encoder tape and locally dampen a vibration of the encoder tape as the encoder tape is read by the read head.

A stabilized field sensor apparatus collects field data, in particular magnetic field data, with reduced motion noise. The apparatus includes a tear drop shaped housing, a tow frame in the housing, a plurality of vibration isolating dampers spaced around the frame, a base assembly mounted to the dampers, a support pedestal having a bottom end fixed to the base assembly and an upper free end, a single spherical air bearing connected to the upper free end of the pedestal, an instrument platform with a lower hollow funnel having an upper inside apex supported on the air bearing for a one point support, principal and secondary gyro stabilizers for maintaining pivotal and rotational stability, and at least one field sensor mounted to the instrument platform for collecting the field data while being stabilized against motion noise including vibration, pivoting and rotation from the base assembly, from the tow frame and from the housing. Stabilization of the instrument platform is enhanced by preserving accurate balance through a dynamic balancing system whereby small masses are moved under computer control to maintain the center of mass of the instrument platform at the center of rotation of the spherical air bearing. The dynamic stabilization process is made more precise by actively vibrating the instrument platform by a set of linear vibrators.

An encoder cushioning structure is installed between an encoder and a motor support and is characterized in that the encoder cushioning structure comprises a cushioning ring elastic sheet and a cushioning ring outer casing, the cushioning ring elastic sheet is a four-claw elastic sheet with four extension ends which are evenly distributed at the periphery and extend from the center, and tail ends of the four extension ends are fixedly installed on an inner edge of the cushioning ring outer casing through screws. Encoder fixing holes fixed with the encoder are further arranged on the cushioning ring elastic sheet. The encoder cushioning structure improves an elastic sheet structure in the cushioning structure, the four extension ends can averagely disperse vibration ranges, the four extension ends are divided into eight screw fixing positions to further promote cushioning and damping effects, simultaneously the extension ends of the four-claw elastic sheets have hyperbolic-curve wavy fluctuation and have better fluctuation cushioning effects for facing strong vibration than those of straight rib sheets, and the encoder cushioning structure is good in whole cushioning effect and even in vibration dispersion, guarantees good mechanical behavior, and is not easy to bend and deform.

The invention discloses a vacuum operating platform with a damping mechanism, wherein the vacuum operating platform is fixedly connected with a sealing flange through a vacuum chamber shell; the sealing flange is fixedly connected with a damping flange; an upper corrugated pipe is fixedly connected between a platform supporting plate and the damping flange; and a lower corrugated pipe is fixedly connected between the sealing flange and the platform supporting plate. When vibration is generated, the vacuum chamber shell transfers the vibration to the sealing flange; the sealing flange directly transfers the vibration to the lower corrugated pipe; meanwhile, the vibration of the sealing flange is transferred to the damping flange through an auxiliary supporting part and then transferred to the upper corrugated pipe; the damping flange can be regulated along the axial direction of the auxiliary supporting part so as to regulate deformation of the upper corrugated pipe and the lower corrugated pipe; and therefore, the vibration force of the upper corrugated pipe transferring to the platform supporting plate is opposite to the vibration force of the lower corrugated pipe transferring to the platform supporting plate. As a result, the vibration of the platform supporting plate is effectively reduced.

The invention discloses a damping slide block device for high-speed rocket sled test. The damping slide block device comprises a slide block body and a damping mechanism. The slide block body comprises a box-type cavity, the center of the box type cavity is provided with a positioning boss, and the sidewalls of the box-type cavity are provided with lateral connection holes. The damping mechanism is mounted in the box-type cavity, and comprises a casing, a vertical damping assembly, a course damping pad and a lateral damping pad, the center of the casing is provided with a positioning hole, the sidewalls of the casing are provided with kidney-shaped connecting holes, the casing is vertically provided with through holes, the vertical damping assembly is mounted in the through holes, the course damping pad is mounted between the outer wall, along the direction vertical to a slide rail, of the casing and the box-type cavity, and the lateral damping pad is mounted between the outer wall along the slide rail direction of the casing and the box type cavity. The damping slide block device can damp vibration of a rocket sled in three coordinate directions to provide a proper environment for rocket sled test.

Improved instrument encasing systems may solve a variety of problems associated with existing systems. In one aspect, an improved instrument encasing system may include a suspension bracket and back plate that enable tool-less mounting and / or disassembly and / or security in mobile installations. Optionally, the system suspension bracket also may provide a template for easy alignment and selection of a mounting position and / or installation thereto. In some embodiments, the back plate may be temporarily reduced in diameter to enable quick and easy access to instruments mounted on an inner housing, or for access to the dial face for personalization. In another aspect, an inner housing of the instrument encasing system may provide one or more spring blades that receive instrument mounting sub-assemblies that provide for easy mounting and replacement of instruments. Optionally, stabilization weights also may be provided in the inner housing to absorb vibrations and increase the overall weight and stability of the housing, enabling lighter materials to be used in the manufacture of other components. In some embodiments, a Physical Vapor Deposition coating may be applied to an outer housing to provide various functional and / or aesthetic qualities.

Displacement encoder for a moving shaft, comprising a sleeve intended to be fitted onto the shaft and at least one permanent magnet forming at least one polarized magnetic mark. An elastomer layer lies between the permanent magnet and the sleeve. This elastomer layer is adhesively bonded to the permanent magnet and to the sleeve. The invention also relates to a device for a moving shaft comprising such an encoder and to the method of manufacturing the encoder.

The process meter comprises a sensor that can be mounted in a wall of a vessel for holding or conveying a process medium, and a meter-electronics case mechanically coupled to the sensor. In operation, the electronics case is at least intermittently subjected to vibrations either generated in the sensor itself or transmitted via the sensor. To reduce amplitudes of such vibrations of the electronics case, at least one vibration absorber is affixed to a wall of the electronics case. This vibration absorber is vibrated at least intermittently in order to dissipate vibrational energy taken into the electronic case. By the suppression of such case vibrations, spurious components in the measurement signal can be reduced to the point that a significant improvement in signal-to-noise ratio is obtained.

The invention relates to an angle-measuring device comprising a stator (1) and a rotor (2), wherein said rotor (2) is arranged rotatably relative to the stator (1) about an axis (A) in the circumferential direction (U). The rotor (2) comprises a shaft (2.1) on which a code disc (2.2) is mounted for rotation therewith. The stator (1) comprises a body (1.3, 1.3 ', 1.3 ") and a scanner (1.2) for scanning the code disc (2.2). For vibration damping, the angle-measuring device comprises a pendulum mass (1:42, 1:42 '; 1:42 ") connected with the body (1.3, 1.3', 1.3 '). The pendulum mass (1:42, 1:42 '; 1:42 ") is deflectable relative to the body (1.3, 1.3', 1.3") with a directional component parallel to the circumferential direction (U).

Devices, apparatus, systems and methods for providing accurate linear and angular positioning with a payload mounted to a conical shaped cantilevered supported beam or S shaped cantilevered beam or a center deflecting beam having freely moveable ends. The payload can be a laser pointer mounted on a firearm, which maintains the initial precise pointing during and after exposure in high G shock and vibration environments. Vertical and lateral adjustment controls can adjust minute changes in beam orientation. Precision adjustments can be performed in a zero G, one G, or high G environment and maintains the adjustment during and after being exposed to a high G shock or vibration environment.

The invention relates to a vibration reduction and impact resistance method for a spaceflight sensor. The vibration reduction and impact resistance method comprises the steps of: analyzing a vibration source; determining the range of the inherent frequency f of a system consisting of vibration reduction and impact resistance materials and a sensor; setting the amplification factor Q for generating resonance of the sensor and the input excitation at the inherent frequency f part of the sensor; determining the damping coefficient Zeta of the vibration reduction and impact resistance materials; estimating the rigidity k of the vibration reduction and impact resistance materials through finite element analysis software, and determining the shape, the number and the arrangement form of the vibration reduction and impact resistance materials; and the like. The vibration reduction and impact resistance method has the advantages that the vibration reduction and impact resistance compatibility of the spaceflight sensor under the mechanical environment is simultaneously considered, firstly, the vibration reduction requirement is met, the proper damping of the vibration reduction and impact resistance materials is selected so that the amplification factor is in a controllable range, next, the inherent frequency of the whole system is reduced to the maximum degree, the transmissibility of the system is reduced for meeting the impact resistance requirement, the vibration reduction and the impact resistance of the spaceflight sensor are effectively realized, and the performance stability of products in spaceflight mechanical environment is ensured.

The shock isolation system for an inertial sensor arrangement, on the one hand, causes an advantageous moment of inertia by the special arrangement of the individual sensors, especially of the gyroscope used. On the other hand, an advantageous long interval of the required shock-absorbing components (“shock mounts”) is provided by the use of several tubular shells. A measurement device with this inertial sensor arrangement thus achieves improved accuracy and reliability.

A backing component configured to receive and attenuate transmitted acoustic signals from a transducer element in an ultrasound probe is disclosed. The backing component has a unitary structure of a first material and a second material, and a variation in packing density of the first material across at least a portion of a thickness of the backing component. Further, a method of making a backing component for a transducer element in an ultrasound probe is disclosed. The method includes performing an additive manufacturing technique using a first material and a second material to form the backing component that has a unitary structure of the first material and the second material. Performing the additive manufacturing technique involves varying a packing density of the first material across at least a portion of thickness of the backing component.