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Guangdong University Of Technology patents


Recent patent applications related to Guangdong University Of Technology. Guangdong University Of Technology is listed as an Agent/Assignee. Note: Guangdong University Of Technology may have other listings under different names/spellings. We're not affiliated with Guangdong University Of Technology, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "G" | Guangdong University Of Technology-related inventors


Led flip-chip structure

An led flip-chip structure is provided, wherein a silica gel, a fluorescent glue, a lens, an anti-reflection film and a packaging adhesive layer is sequentially arranged on the led chip. The silica gel and fluorescent glue are sequentially filled within an insulating reflective cup, outside which a metal reflective cup and a light absorption layer is sequentially provided. ... Guangdong University Of Technology

Method and apparatus for detecting instantaneous fetal heart rate of doppler fetal heart sound based on time-frequency analysis

The present disclosure relates to medical monitoring and provides a method and an apparatus for detecting an instantaneous fetal heart rate of a doppler fetal heart sound based on time-frequency analysis. The method comprises: pre-processing a doppler fetal heart sound using a band pass filter; applying time-frequency analysis to the pre-processed ultrasound doppler fetal heart sound, so as to obtain a time-frequency graph of the ultrasound doppler fetal heart sound by stft for simple and fast calculation; applying a cross correlation method to obtain an instantaneous of the fetal heart sound by: selecting a characteristic band from the time-frequency graph of the doppler fetal heart sound, selecting a characteristic template based on a priori knowledge of the heart sound signal, calculating a cross-correlation function between the characteristic band and the characteristic template to plotting a cross correlation curve; and calculating an instantaneous heart rate of the ultrasound doppler fetal heart sound signal by calculating intervals between peaks of the cross correlation curve. ... Guangdong University Of Technology

Apparatus for measuring internal strain field of dental resin

The present disclosure discloses an apparatus for measuring an internal strain field of a dental resin, comprising: an optical measurement system, a probe and a data processor, wherein an optical fiber coupler in the optical measurement system has one input terminal connected to a light source, one output terminal connected to the probe, the other output terminal provided with an optical component including a reflective element for forming reference light and the other input terminal provided with an photoelectric imaging apparatus for receiving interference light formed by object light and the reference light. The probe is configured to irradiate detection light outputted from the optical fiber to a measured tooth and receive object light which is reflected by the tooth; and the data processor is configured to obtain a measurement result of the internal strain field of the measured dental resin according to an interference spectrum obtained through imaging by the photoelectric imaging apparatus. ... Guangdong University Of Technology

A self-sharpening polishing device with magnetorheological flexible polishing pad formed by dynamic magnetic field and polishing method thereof

Provided is a self-sharpening polishing device with magnetorheological flexible polishing pad formed by dynamic magnetic field and polishing method thereof. The device includes a polishing disc revolution mechanism and a multi-magnetic-pole synchronous rotary drive mechanism, the polishing disc revolution mechanism including a transmission shaft motor, a transmission shaft, a transfer disc, an eccentric shaft fixing disc, a cup-shaped polishing disc and a transmission shaft transmission mechanism, the multi-magnetic-pole synchronous rotary drive mechanism including an eccentric spindle, a synchronous rotary drive disc, flexible eccentric rotating shafts, eccentric sleeves, magnetic poles, the eccentric shaft fixing disc, and a spindle motor, etc. ... Guangdong University Of Technology

Method of laser joining of dissimilar materials with ultrasonic aid

A new ultrasonic aided laser joining method (ual) for bonding dissimilar materials has been developed. The method is capable of eliminating the laser-induced bubbles at the bonding faces and to improve the joint strength over that of the conventional laser-assisted metal and plastic joining method (lamp). ... Guangdong University Of Technology

Linear motor common stator dual-drive macro/micro integrated high-speed precision motion one-dimensional platform

The present invention proposes a linear motor common stator dual-drive macro/micro integrated high-speed precision motion one-dimensional platform, including a base, linear guide rails, slide blocks, a u-shaped linear motor stator, a macro motion rotor, a micro motion rotor and a macro/micro integrated platform. A macro motion platform and a micro motion platform are connected to form an integrated platform by virtue of an elastic member, an outer frame of the macro/micro integrated platform is mounted on the linear guide rails and the slide blocks, the u-shaped linear motor stator is arranged on the base, rotors are respectively mounted on the macro motion platform and the micro motion platform, and large-scale overall high-speed motion can be realized when macro and micro rotors are simultaneously driven; and when a motion deviation occurs, the micro motion platform realizes precise displacement output by virtue of elastic deformation due to small inertia and zero friction, and high-frequency motion deviation compensation can be realized by virtue of individual drive. ... Guangdong University Of Technology

High-speed platform motion parameter self-tuning method based on model identification and equivalent simplification

A high-speed platform motion parameter self-tuning method based on model identification and equivalent simplification is provided, comprising: establishing a test of a motion state of a high-speed platform, identifying model parameters, and optimizing motion parameters of an equivalent simplified model; selecting any motion function from a pre-set parameterized curve, setting initial parameters, and driving the high-speed platform to move under the action of a controller and an actuator; collecting dynamic response information of the platform, calculating dynamic characteristic information of the platform such as stiffness, frequency, damping and the like; establishing a dynamic response equivalent simplified model by using the acquired dynamic characteristic information, and performing the optimization constrained by meeting motion precision and targeting at shorter execution time for the motion parameters in the selected parameterized motion function to obtain the optimum parameters. The method of the present invention gives consideration to the dynamic characteristic requirement of the platform and the comprehensive requirement of the parameter identification and optimization on the industrial site, facilitates the implementation of an algorithm in a motion control card, and is suitable for rapidly acquiring the optimum motion parameters of the actual high-speed platform on site.. ... Guangdong University Of Technology

Composite frequency-adjustable shock absorber

A composite frequency-adjustable shock absorber is provided, comprising a motion main machine stand bar and a shock absorption device, which are arranged on a foundation carrier platform; the shock absorption device is divided into an upper shock absorption device and a lower shock absorption device, the shock absorption device is arranged on a base with an inner cavity, and the upper shock absorption device for suppressing the low-frequency vibration and the lower shock absorption device for absorbing additional high-frequency vibration are connected in series; the upper shock absorption device comprises an elastic component based on a flexible hinge group and a prestress adjusting device, the flexible hinge group is arranged in the inner cavity of the base, the prestress adjusting device for adjusting the inherent frequency of the flexible hinge group is connected with the flexible hinge group, and the motion main machine stand bar is fixed on a load bearing portion of the flexible hinge group. The inherent frequency of the whole flexible hinge group is changed, so the high frequency band and the low frequency band of vibration systems with different masses and different excitation frequencies are effectively isolated, the structure is simple, the adjustment is convenient, and the cost is not high.. ... Guangdong University Of Technology

Macro-micro integrated compound platform with adjustable dynamic characteristics

The present invention proposes a macro-micro integrated compound platform with adjustable dynamic characteristics. When a macro platform mover and a micro platform mover are driven at the same time, the whole large-scale high-speed motion can be realized; when a motion deviation occurs, a micro motion platform can be driven separately to realize the high-frequency motion deviation compensation, because the micro motion platform has small inertia and zero friction and achieves precision displacement output through elastic deformation. ... Guangdong University Of Technology

Method of making textured ceramics

The invention proposed a novel hot pressing flowing sintering method to fabricate textured ceramics. The perfectly 2-dimensional textured si3n4 ceramics (lotgering orientation factor fl 0.9975) were fabricated by this method. ... Guangdong University Of Technology

Macro-micro composite grating ruler measuring system based on conversion and amplification in vertical and horizontal directions

The present disclosure relates to a macro-micro composite grating ruler measuring system based on conversion and amplification in vertical and horizontal directions. The macro-micro composite grating ruler includes a grating ruler, a macro-micro reading system moving with respect to the grating ruler, and a counting and image processing module. ... Guangdong University Of Technology

Stiffness-frequency adjustable xy micromotion stage based on stress stiffening

The present disclosure involves occasions where precise two-dimensional motion takes place, and is applicable to xy motion stages for precise displacement compensation. The present disclosure particularly involves a stiffness-frequency adjustable xy micromotion stage based on stress stiffening, which includes x-direction and y-direction motion sub-stages and corresponding drivers and a micromotion working table. ... Guangdong University Of Technology








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