Search Results - ning xi

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110027: 3D Imaging Sensor

Three-dimensional imaging systems are currently of interest for a variety of applications including entertainment, robotics, vehicle safety cameras, topographical mapping, and building engineering. Modern industrial 3D photography uses 3D scanners to detect and record 3D information. The 3D depth information is reconstructed from two images using...
Published: 7/21/2014   |   Inventor(s): Ning Xi, Jing Xu
Keywords(s): 3D, 3D Sensor, Feature-Based Matching, Near Infrared Light Category(s): Devices, Electrical

070073: Efficient Selection of Carbon Nanotubes by Desired Properties

In the beginning powder form, carbon nanotubes (CNTs) have a wide range of physical dimensions and electrical properties at the level of individual CNTs. A number of researchers have tried various methods of selecting and manipulating (CNTs) produced in batch quantities. However, these processes do not select CNTs by specific dimensions, or select...
Published: 7/21/2014   |   Inventor(s): Ning Xi, Wai Chiu King Lai, Uche Wejinya
Keywords(s): Carbon Nanotube, DEP Force, MEMS, Micromanipulation, Microprobe, Sonication Category(s): Materials, Nanotechnology

050123: A Reliable Process for Fabricating Single Nanowires and Nanotubes

In a broad class of future nano-devices, a key challenge will be to construct connections between electrodes using single carbon nanotubes (CNTs) or semiconductor nanowires (NWs). Current methods have major difficulties with repeatability and the ability to eliminate uncertainties. A major problem is that growing NWs or CNTs across an electrode...
Published: 7/21/2014   |   Inventor(s): Ning Xi, Guangyong Li, Jiangbo Zhang, HO-Yin Chan
Keywords(s): Atomic Force Microscopy, Carbon Nanotube, Nanodevice, Nanomanipulation Category(s): Nanotechnology, Electrical

050122: Pneumatic Nano-Probe Tip for Nano-Manipulation and Manufacturing

A major problem with nano-manipulation is holding the target. Due to the lack of micro force/flow feedback, the target is often destroyed during its manipulation. It would be highly desirable to have a means for picking up and releasing nano-objects without the above difficulties. Description The current invention addresses current operational problems...
Published: 7/21/2014   |   Inventor(s): Ning Xi, Yantao Shen, Uchechukwu Wejinya
Keywords(s): Micro-suction, Nanomanipulation, Nano-manufacturing, Pneumatic Pressure Category(s): Mechanical, Nanotechnology, Devices

050034: Improved AFM Manipulation of Nano-Objects

In traditional atomic force microscope (AFM) based nano-manipulation systems, a cantilever is used as the probe tip to manipulate nano-sized objects. Because of the need for good contact with the object, a "pre-loaded" force must be exerted by the cantilever on the object, making it difficult for an operator to "feel" the object or to adjust and...

050026: A Force Sensing Probe for Micromanipulation and Microassembly

A current limitation with existing micro-probe tips is their relatively high degree of bending when encountering objects on surfaces. This significantly limits the ability of micro-probes to manipulate micro-objects. In addition, the sensor can only have a small dynamic range in its bending if it is to maintain high accuracy in manipulating objects. Description The...
Published: 7/21/2014   |   Inventor(s): Ning Xi, Yantao Shen
Keywords(s): Active Force Balance, Force Sensor, Microassembly, Micromechanical, Piezoelectric, PVDF Category(s): Mechanical, Devices

030073: Improved Force Sensing on Nano-Manipulated Objects

Efficient manipulation of nano-sized objects will require an effective means for sensing the force exerted by a nanoprobe on the object. Current PZT (lead zirconium titante)-based piezoelectric force sensors are limited in their sensitivity. Description By using a highly sensitive polyvinylidene fluoride (PVDF) piezoelectric force sensor to measure...

030039: Real-time Nanomanipulation using AFM

An efficient system for manipulation of nano-sized objects would be greatly aided by the ability of an operator to "feel" the objects he/she is manipulating. Description The invention proposes an atomic force microscope (AFM) based Augmented Reality System consisting of an AFM connected to a haptic device allowing the operator to feel the nano-objects...