scholarly journals A high performance, high precision, low cost rapid prototyping and manufacturing technology

2014 ◽  
Vol 4 (3) ◽  
pp. 179-184 ◽  
Author(s):  
Viacheslav R. Shulunov
Keyword(s):  
Rapid Prototyping ◽  
High Precision ◽  
High Performance ◽  
Low Cost ◽  
Manufacturing Technology ◽  
Rapid Prototyping And Manufacturing

Time Discriminating Design for High Precision Pulsed TOF Laser Rangefinder

2011 ◽  
Vol 105-107 ◽  
pp. 1951-1956
Author(s):  
Dong Qing Shen ◽  
Jian Yong Chen ◽  
Wan Cai Li ◽  
Hong Jiang ◽  
Zhen Yu Li
Keyword(s):  
Experimental Evidence ◽  
High Precision ◽  
Input Signal ◽  
High Performance ◽  
Low Cost ◽  
Threshold Value ◽  
Experimental Results ◽  
Measuring System ◽  
Laser Rangefinder ◽  
Constant Fraction Discriminator

The purpose of a time discriminator is to decide when the input is something you are interested in. It does this by putting out a logic pulse when the input signal meets an adjustable threshold value. A low cost high performance constant fraction discriminator (CFD) for laser rangefinder using pulsed TOF (time of flight) is proposed with the accuracy been improved. The theory of CFD is deduced and discussed and a distance measuring system has been established and experimental evidence is presented to show the feasibility of solving the time walking error problem to amend the precision and improving the environmental applicability, the distance error of +/-0.5mm was observed in the lab condition. The advantages of this instrument are highlighted and the experimental results are presented.

scholarly journals A low-cost and high-precision scanning electrochemical microscope built with open source tools

2019 ◽  
Author(s):  
Alperen Guver ◽  
Nafetalai Fifita ◽  
Peker Milas ◽  
Michael Straker ◽  
Michael Guy ◽  
...  
Keyword(s):  
Open Source ◽  
High Precision ◽  
High Performance ◽  
Low Cost ◽  
Measurement Capability ◽  
Scanning Electrochemical Microscope ◽  
Inverted Microscope ◽  
Stepper Motors ◽  
3D Printed ◽  
Software And Hardware

AbstractA low-cost Scanning Electrochemical Microscope (SECM) was built with a 0.6 pA current measurement capability potentiostat and submicron resolution motorized stage, using open source software and hardware tools. The high performance potentiostat with a Python graphical user interface was built based on an open source project. Arduino boards, stepper motors, a manual XY micromanipulator stage, 3D printed couplers and gears were used in building the motorized stage. An open source motor control software was used for moving the motorized stage with high precision. An inverted microscope was utilized for viewing a standard microelectrode while scanning. The setup was tested in the formation of a map of electrochemical signals from an array of pores on a parafilm membrane. As the setup will be used in future biosensing experiments, DNA hybridization detection experiments were also performed with the setup.

scholarly journals High-Speed Handling Robot with Bionic End-Effector for Large Glass Substrate in Clean Environment

Sensors ◽  
2021 ◽  
Vol 22 (1) ◽  
pp. 149
Author(s):  
Zhengyong Liu ◽  
Youdong Chen ◽  
Henan Song ◽  
Zhenming Xing ◽  
Hongmiao Tian ◽  
...  
Keyword(s):  
High Precision ◽  
Glass Substrate ◽  
High Speed ◽  
High Performance ◽  
Large Scale ◽  
Dynamic Models ◽  
Low Cost ◽  
Structure Design ◽  
End Effector ◽  
Vibration Experiment

The development of “large display, high performance and low cost” in the FPD industry demands glass substrates to be “larger and thinner”. Therefore, the requirements of handling robots are developing in the direction of large scale, high speed, and high precision. This paper presents a novel construction of a glass substrate handling robot, which has a 2.5 m/s travelling speed. It innovatively adopts bionic end-suction technology to grasp the glass substrate more firmly. The structure design is divided into the following three parts: a travel track, a robot body, and an end-effector. The manipulator can be smoothly and rapidly extended by adjusting the transmission ratio of the reducer to 1:2:1, using only one motor to drive two sections of the arm. This robot can transfer two pieces of glass substrate at one time, and improves the working efficiency. The kinematic and dynamic models of the robot are built based on the DH coordinate. Through the positioning accuracy experiment and vibration experiment of the end-effector, it is found that the robot has high precision during handling. The robots developed in this study can be used in large-scale glass substrate handling.

Present State & Perspectives of Rapid Prototyping and Manufacturing Technology

2011 ◽  
Vol 215 ◽  
pp. 295-299 ◽  
Author(s):  
Yong Ping Jin ◽  
M.M. Ding ◽  
J. Yu ◽  
C. Xiang
Keyword(s):  
3D Printing ◽  
Rapid Prototyping ◽  
Fused Deposition Modeling ◽  
Manufacturing Technology ◽  
Digital Manufacturing ◽  
Manufacturing Method ◽  
Fused Deposition ◽  
Laminated Object Manufacturing ◽  
Deposition Modeling ◽  
Rapid Prototyping And Manufacturing

By integrating a number of different disciplines, rapid prototyping and manufacturing technology (RPM) is capable of forming parts with complicated structures and non-homogeneous materials. RPM techniques are mainly used as prototypes in such product invention process as stereo lithography, 3D printing, laminated object manufacturing and fused deposition modeling. So far, many new RPM techniques emerged out and have been already applied in such fields as rapid tooling/moulding, direct formed usable part, nano-/micro-RPM and biomanufacturing. The flexible digital manufacturing method will have a bright prospect.

Constructive Optimisation of the Propeller Type Mixing Devices Using the Virtual and Rapid Prototyping

2017 ◽  
Vol 68 (3) ◽  
pp. 453-458 ◽  
Author(s):  
Daniel Besnea ◽  
Alina Spanu ◽  
Iuliana Marlena Prodea ◽  
Gheorghita Tomescu ◽  
Iolanda Constanta Panait
Keyword(s):  
Rapid Prototyping ◽  
Low Cost ◽  
Scale Up ◽  
Three Dimensional ◽  
Rapid Identification ◽  
Multidisciplinary Optimization ◽  
External Diameter ◽  
Process Industries ◽  
Parametric Cad ◽  
Shaft Torque

The paper points out the advantages of rapid prototyping for improving the performances/constructive optimization of mixing devices used in process industries, here exemplified to propeller types ones. The multidisciplinary optimization of the propeller profile affords its design using parametric CAD methods. Starting from the mathematical curve equations proposed for the blade profile, it was determined its three-dimensional virtual model. The challenge has been focused on the variation of propeller pitch and external diameter. Three dimensional ranges were manufactured using the additive manufacturing process with Marker Boot 3D printer. The mixing performances were tested on the mixing equipment measuring the minimum rotational speed and the correspondent shaft torque for complete suspension achieved for each of the three models. The virtual and rapid prototyping method is newly proposed by the authors to obtain the basic data for scale up of the mixing systems, in the case of flexible production (of low quantities), in which both the nature and concentration of the constituents in the final product varies often. It is an efficient and low cost method for the rapid identification of the optimal mixing device configuration, which contributes to the costs reduction and to the growing of the output.

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