317results about How to "Strong vibration resistance" patented technology

The present invention relates to a gas pendulum inertial sensor, which is used in control technology field to detect pose measurement of motional body, such as ship craft and robot, wherein the inertial sensor main includes a gas pendulum angular velocity sensing element, a gas pendulum tilt sensing element and a signal process circuit, wherein the signal process circuit mainly comprises a bridge circuit, a amplify circuit, a filter circuit, and a SCM compensation circuit with a null position and sensitivity compensation program, a linearity and output compensation program, an acceleration interference offset subprogram, and an omnibearing tilt signal compensation program, whereby the SCM compensation circuit integral into a circuit board to replace a conventional hardware signal amplify circuit, a filter circuit and a compensation circuit. The gas pendulum inertial sensor is adapted to accurately measure not only an object's indication without interference from the acceleration, but also an object's indication with interference from the acceleration. The gas pendulum inertial sensor has some significant advantages like highly attack-resist ability, intensively vibrate-resist ability, quick response time, wide ranges of working temperature, well linearity, credibility, sensitivity and precision ability, compact capacity and lower cost.

The invention discloses a multi-channel locomotive speed measurement hall revolution speed transducer and an installation method thereof. The multi-channel locomotive speed measurement hall revolution speed transducer comprises an induction module and a processing circuit board, wherein the processing circuit board comprises a power supply processing circuit and a signal processing circuit; after an external power supply input signal is processed by the power supply processing circuit, power is respectively supplied to the induction module and the signal processing circuit; the induction module comprises more than two groups of double-channel hall elements and is used for transmitting pulse signals induced and changing with the rotation of a speed measuring gear to the signal processing circuit; after the signal processing circuit is used for amplifying and shaping the pulse signals, the four processed signals are output to an upper computer. The locomotive speed measurement multi-channel hall revolution speed transducer can be used for solving the problems in the prior art that the high-speed speed measurement requirements of motor train units cannot be met, few number of channels are available and signals are not output during the low speed running of a locomotive. The multi-channel locomotive speed measurement hall revolution speed transducer is in non-contact with the speed measuring gear, free of abrasion, simple in a production debugging technology, convenient to install, large in induction air gap and wide in speed measurement range and temperature adaptive range and has strong vibration resistance and anti-disturbance performance.

A piezoelectric resonating element includes a piezoelectric substrate having a rectangular vibrating portion and a thick-walled portion, excitation electrodes and, and lead electrodes. The thick-walled portion includes a fourth thick-walled portion, a third thick-walled portion, a first thick-walled portion, and a second thick-walled portion. The third thick-walled portion includes a third slope portion and a third thick-walled body, and at least one slit is formed in the third thick-walled portion.

The invention discloses a hydrostatic nut pair. The hydrostatic nut pair comprises a lead screw and nuts, wherein the lead screw and the nuts are matched. The inner tooth surfaces of the nuts are provided with oil cavities. The nuts are provided with oil through holes communicated with the oil cavities. Due to the distributed oil cavities, lubricating oil forms oil films between the lead screw and the tooth side surfaces of the nuts. The nuts are further provided with pressure taps communicated with the oil cavities. The pressure taps are provided with pressure joints. The oil through holes are provided with pressure regulating components. When the hydrostatic nut pair works, high-pressure lubricating oil is injected into the oil through holes of the nuts, enters the oil cavities through the pressure regulating components and can from the oil films between the lead screw and the tooth side surfaces of the nuts; in this way, the pressure of the oil films can be detected through the pressure joints of the pressure taps, the pressure regulating components are regulated according to the pressure of the oil films, the pressure regulating components can change the pressure of the oil films, and therefore the hydrostatic nut pair can be in an optimal working condition.

A disc device and semiconductor integrated circuit and pick-up control method and vibration component test method are provided. An optical disk device is provided with a multiplication means for generating a focus vibration component FC from the focus error signal FE, a multiplication means for generating a tracking vibration component TC from the tracking error signal TE, an adder for adding the focus vibration components FC and TC, and a low-pass filter for extracting the vibration component VC from the added results. Thus, the vibration component VC is extracted considering not only vibrations in the tracking direction but also vibrations in the focus direction, so that vibrations acting on the device can be more accurately detected, and vibration resistance is increased. Tereby, it can increase the vibration resistance of an optical disk device with respect to vibrations in the focus direction.