39results about How to "Vibration is stable and stable" patented technology

The invention relates to a device for measuring a Doppler frequency shift, comprising:

• • an optical signal channel (60) delivering a signal light beam illuminating a reference medium;
  • a reference channel (80) delivering a reference light beam for detecting the Doppler frequency shift, the frequency shift being determined from the difference in frequency between the light signal illuminating the reference medium and the light beam returned by the reference medium,
  • characterized in that it includes at least two light radiation sources (SL1, SL2), preferably lasers, one light radiating source generating the light beam for the signal channel and the other source generating the light beam for the reference channel.

An angular rate sensor includes: a substrate; a drive-purpose vibrator capable of vibrating in a first direction; and an angular velocity detection-purpose vibrator capable of vibrating in a second direction. The sensor detects an angular velocity on the basis of vibration of the angular velocity detection-purpose vibrator in the second direction caused by a Coriolis force, when the drive-purpose vibrator is vibrated in the first direction, and the angular velocity is applied to the sensor in a third direction. The angular velocity detection-purpose vibrator has a length along with the second direction and a width along with the first direction. A ratio between the width and the length is equal to or larger than 0.1.

The invention discloses a vibration loudspeaker. A vibration unit of the vibration loudspeaker comprises a square magnetic circuit system and a metal dome used for suspending the magnetic circuit system in an auxiliary system. The metal dome comprises a squarely annular central part, a first elastic arm and a second elastic arm, wherein the central part is sleeved on the periphery of a magnetic conducting part, fixed on a magnetic conducting base corresponding to a magnetic interval, and is provided with a first side and a second side which are opposite to each other; the first elastic arm is led out of the first side of the central part, and is bent and extended along the first side of the central part; the end part of the first elastic arm is fixed on a plastic shell of the auxiliary system; the second elastic arm is led out of the second side of the central part, and is bent and extended along the second side of the central part; and the end part of the second elastic arm is fixed on the plastic shell of the auxiliary system. The vibration loudspeaker can provide stable vibration feel at the same time of improving product performance by increasing the magnet size of the magnetic circuit system.

A magnetic levitation vibration system comprising a top plate, a base plate, at least one first magnet, at least one second magnet, at least one electromagnetic actuator comprising an upper half and a lower half, a controller, a sensor, and a control circuit. A method for the treatment or prevention of musculoskeletal indications comprising providing a top plate, providing a base plate, generating a first magnetic field to levitate the top plate, generating a second magnetic field to drive the top plate into vibration, adjusting frequency of vibration of the top plate; and adjusting magnitude of vibration of the top plate.

The present disclosure belongs to the technical field of gel material processing, and discloses processing equipment and a processing technology of a gel microsphere material. The processing equipment comprises a mixing barrel, wherein a motor is installed at the top of the mixing barrel; a rotating rod is arranged in the mixing barrel; the rotating rod is fixedly connected to the output end of the motor; a fan-shaped impeller is installed at the bottom end of the rotating rod; the bottom of the rotating rod communicates with a gas conveying pipe; a shunting ring is fixedly connected to the inner side wall of the mixing barrel; the bottom of the rotating rod is fixedly connected with the fan-shaped impeller; and the gas conveying pipe is arranged at the bottom of the mixing barrel to inflate a raw material solution in the mixing barrel, when bubbles float in the solution, the solution can be stirred, and then under the cooperation of the fan-shaped impeller at the bottom of the rotating rod, the raw material solution of the gel microsphere material is stirred more quickly and more uniformly in the mixing barrel compared with the raw material solution only stirred by the fan-shaped impeller.

The invention discloses a crane base with a stable buffer structure. The crane base comprises a main body, a first support column and a corrosion resisting plate; a fixed ring is arranged on the surface of the main body; a detachable shell sleeves the surface of the fixed ring; a reserved hole is embedded in the detachable shell; a bolt is sleeved in the reserved hole; an antiskid pad is mounted in the fixed ring; a fixed block is fixed at the bottom end of the side, near the main body, of the first support column; through arrangement of three sets of first support columns, the vibration forceis effectively buffered, so that the crane base is always maintained in a stable state, and the exterior influence during constructing is reduced; through the detachable shell, the crane base is quickly disassembled in use; and through arrangement of a hydraulic cylinder, a buffer spring, a rubber pad and an extension spring, the vibration suffered by the crane base is effectively reduced throughmultiple buffering, and the construction operation efficiency is improved.

The invention discloses a novel vibration film with a reinforcing rib structure. The vibration film is used as a receiver, wherein at least one end of the vibration film is connected with a vibration film bracket, the vibration film bracket is fixedly connected with a receiver shell, and one end of the vibration film is in transmission connection with a receiver transmission rod; the vibration film comprises a vibration film body and a reinforcing rib arranged on the vibration film, and the reinforcing rib is a first convex closure upwardly protruded and/or a second convex closure upwardly protruded. The novel vibration film is simple in structure, under the same-thickness vibration film, the vibration film with the reinforcing rib structure is better in vibration intensity and greater in vibration amplitude and can be steadily and smoothly vibrated and effectively ensured in the sound quality of the receiver, thus the novel vibration film is applied to the different-type and different-size receivers.

A piezoelectric vibrating element includes a main vibration section vibrating in a constant direction, an open edge formed at least at one edge among edges provided m a vibration direction of the main vibration section, an outer frame section formed so as to surround the main vibration section, and a junction section being disposed between the main vibration section excluding the open edge and the outer frame section, having groove parts being recessed with respect to both surfaces of the main vibration section and flat parts being substantially flush with the both surfaces of the main vibration section, and being formed so as to integrally connect the main vibration section with the outer frame section.

The invention provides bran removal and rice sorting equipment, and relates to the field of solid separation and sorting equipment. The bran removal and rice sorting equipment comprises a machine boxshell. Supporting feet are connected to the bottom of the machine box shell. A switch set is arranged on the front face of the machine box shell. An observation window is inlaid on the front face of the machine box shell. A sorting frame is arranged in the machine box shell. A supporting seat is connected to the surface of the inner wall of the machine box shell. A moving cover is movably connected to the top of the machine box shell through hinges. A bran removal box is arranged below the moving cover. A discharging opening is formed on the right side of the machine box shell. According to the bran removal and rice sorting equipment, the bran removal box is arranged, and therefore bran can be removed while rice is sorted, the situation that bran removal is independently carried out on rice, and consequently resources are wasted is avoided, and the cost of factories is reduced; and compared with a traditional rice sorting device, the equipment is more convenient to use, the sorting frame and a containing frame are arranged, and the containing frame can be taken, so that sorted rice is taken out conveniently.

The invention discloses a method for coating a sticky quartz crystal (SQCM) probe of a lunar dust measuring instrument. By using the method, a quartz crystal can be coated with vacuum grease, and the sticky quartz crystal formed after coating is carried out can be used for measuring lunar dust. According to the method, at first, petroleum ether is adopted for cleaning the quartz crystal, and the quartz crystal with the frequency within 9990000 Hz-9995000 Hz is selected for being coated; Apiezion H grease is adopted as laminating of the sticky quartz crystal for carrying out coating, the frequency of the quartz crystal is monitored in the coating process, the frequency difference of the quartz crystal before and after coating is carried out is about 2 MHz, coating is finished, a Q value, resonance impedance and dynamic capacity of the quartz crystal are detected, and if the Q value, the resonance impedance and the dynamic capacity meet the technical indexes, the quartz crystal can be applied to the sticky quartz crystal probe.

A gearbox includes a sun gear, a plurality of planetary gears meshed with the sun gear, a rotating frame supporting the planetary gears, and a housing with an internal ring gear meshed with the planetary gears. The planetary gears include a first gear and a second gear coaxially connected to each other along an axial direction and rotating synchronously, the first gear meshed with the sun gear, and the second gear meshed with the internal ring gear of the housing. The rotating frame received in the housing has an upper frame and a lower frame with a central hole, each of the plurality of planetary gears is arranged between the upper frame and the lower frame by a mounting pin, the lower frame is supported by a flange connected to the housing, the sun gear is driven to rotate so as to operate the rotating frame. The gearbox of the present disclosure has low vibration and low noise.

The mist spraying apparatus comprises: a liquid chamber into which liquid is filled; a coil which is applied with an electrical signal to generate a magnetic filed, the electrical signal having a frequency corresponding to an ultrasonic wave; a diaphragm which is vibrated by the magnetic field generated by the coil, and imparts the ultrasonic wave to the liquid in the liquid chamber; a spraying port which is connected to the liquid chamber and sprays the liquid converted into a mist by the ultrasonic wave; and a drive unit which applies the electrical signal to the coil.

The invention discloses a vibrating diaphragm with concave-convex reinforcing ribs. The vibrating diaphragm is used for a telephone receiver. At least one end of the vibrating diaphragm is connected with a vibrating diaphragm support, the vibrating diaphragm support is fixedly connected with a shell of the telephone receiver, one end of the vibrating diaphragm is in transmission connection with a conducting rod of the telephone receiver, the vibrating diaphragm comprises a vibrating diaphragm body and convex hulls, and the convex hulls include the first convex hulls which are convex upwards and the second convex hull which is convex downwards. The vibrating diaphragm with the concave-convex reinforcing ribs is simple in structure, the vibrating strength is higher on the premise that the thickness is not changed, the vibrating amplitude is higher, smoothness and stability of vibration of the vibrating diaphragm can be effectively guaranteed, the sound quality of the telephone receiver can be effectively guaranteed, and the vibrating diaphragm with the concave-convex reinforcing ribs is more suitable for large telephone receivers.

The invention discloses a concrete pouring device, and relates to the technical field of concrete pouring. The concrete pouring device comprises a pouring pipe, a fastening device is fixedly connected to the inner wall of the top of the pouring pipe, telescopic rods are fixedly connected to the top of the pouring pipe, a fixing sleeve is fixedly connected to the tops of the telescopic rods, a placing groove is formed in the top of one side of the fixing sleeve, the parts, located on the two sides of the placing groove, of the top of the fixing sleeve are rotationally connected to locking devices correspondingly, each fastening device comprises a fastening ring, the inner wall of each fastening ring is fixedly connected to a buffering base, a buffering cavity is formed in each buffering base, the inner wall of each buffering cavity is slidably connected to a buffering piston head, and one side of each buffer piston head is fixedly connected to a piston rod. The invention relates to the technical field of concrete pouring. According to the concrete pouring device, concrete can be conveniently vibrated while pouring is conducted through the pouring pipe, bubbles can be favorably and rapidly discharged, the vibration effect is better, and the height of a vibrator inside the pouring pipe can be conveniently adjusted.