Piezoelectric Micro-Pump Suction Cup Design and Research on the Optimal Static Driving Characteristics

2017 ◽  
pp. 26-38
Author(s):  
Enguang Guan ◽  
Yunhao Ge ◽  
Jihao Liu ◽  
Weixin Yan ◽  
Yanzheng Zhao
Keyword(s):  
Suction Cup ◽  
Micro Pump ◽  
Cup Design

Novel micro-suction-cup design for sampling soil solution at defined distances from roots

2005 ◽  
Vol 168 (3) ◽  
pp. 386-391 ◽  
Author(s):  
Markus Puschenreiter ◽  
Walter W. Wenzel ◽  
Gottfried Wieshammer ◽  
Walter J. Fitz ◽  
Simone Wieczorek ◽  
...  
Keyword(s):  
Soil Solution ◽  
Suction Cup ◽  
Cup Design

The Photoresponsive Micro-pump Tape Using Gas Generation Technology

2020 ◽  
Vol 140 (3) ◽  
pp. 65-69
Author(s):  
Yoshinori Akagi ◽  
Daihei Sugita ◽  
Kazuki Yamamoto
Keyword(s):  
Gas Generation ◽  
Micro Pump ◽  
Generation Technology

Underwater Behavior of Blue Whales Using a Suction-cup Attached CRITTERCAM

2002 ◽  
Author(s):  
John Calambokidis ◽  
John Francis ◽  
Greg Marshall ◽  
Don Croll ◽  
Mark McDonald ◽  
...  
Keyword(s):  
Suction Cup ◽  
Blue Whales

scholarly journals Bio-inspired Miniature Suction Cups Actuated by Shape Memory Alloy

10.5772/7228 ◽  
2009 ◽  
Vol 6 (3) ◽  
pp. 29 ◽  
Author(s):  
Hu Bing-Shan ◽  
Wang Li-Wen ◽  
Fu Zhuang ◽  
Zhao Yan-zheng
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Analytical Model ◽  
Basic Structure ◽  
Thin Elastic Plate ◽  
Climbing Robots ◽  
Suction Cup ◽  
Sma Actuator ◽  
Suction Cups ◽  
Pressure Suction

Wall climbing robots using negative pressure suction always employ air pumps which have great noise and large volume. Two prototypes of bio-inspired miniature suction cup actuated by shape memory alloy (SMA) are designed based on studying characteristics of biologic suction apparatuses, and the suction cups in this paper can be used as adhesion mechanisms for miniature wall climbing robots without air pumps. The first prototype with a two-way shape memory effect (TWSME) extension TiNi spring imitates the piston structure of the stalked sucker; the second one actuated by a one way SMA actuator with a bias has a basic structure of stiff margin, guiding element, leader and elastic element. Analytical model of the second prototype is founded considering the constitutive model of the SMA actuator, the deflection of the thin elastic plate under compound load and the thermo-dynamic model of the sealed air cavity. Experiments are done to test their suction characteristics, and the analytical model of the second prototype is simulated on Matlab/simulink platform and validated by experiments.

Fabrication and drive test of pneumatic PDMS micro pump

2007 ◽  
Vol 135 (2) ◽  
pp. 849-856 ◽  
Author(s):  
Ok Chan Jeong ◽  
Satoshi Konishi
Keyword(s):  
Micro Pump

scholarly journals Soft Hybrid Suction Cup Capable of Sticking to Various Objects and Environments

Actuators ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 50
Author(s):  
Hideyuki Tsukagoshi ◽  
Yuichi Osada
Keyword(s):  
Vertical Direction ◽  
Check Valve ◽  
Adhesive Force ◽  
Outer Diameter ◽  
Shear Direction ◽  
Concrete Walls ◽  
Suction Force ◽  
Suction Cup ◽  
Valve Function ◽  
Suction Cups

A universal suction cup that can stick to various objects expands the areas in which robots can work. However, the size, shape, and surface roughness of objects to which conventional suction cups can stick are limited. To overcome this challenge, we propose a new hybrid suction cup structure that uses the adhesive force of sticky gel and the suction force of negative pressure. In addition, a flexible and thin pneumatic balloon actuator with a check valve function is installed in the interior, enabling the controllable detachment from objects. The prototype has an outer diameter of 55 mm, a weight of 18.8 g, and generates an adsorption force of 80 N in the vertical direction and 60 N in the shear direction on porous walls where conventional suction cups struggle to adsorb. We confirmed that parts smaller than the suction cup and fragile potato chips are adsorbed by the prototype. Finally, the effectiveness of the proposed method is verified through experiments in which a drone with the prototypes can be attached to and detached from concrete walls and ceilings while flying; the possibility of adsorption to dusty and wet plates is discussed.

scholarly journals Hypoxia-on-a-chip

2016 ◽  
Vol 2 (1) ◽  
pp. 71-75 ◽  
Author(s):  
Mathias Busek ◽  
Stefan Grünzner ◽  
Tobias Steege ◽  
Udo Klotzbach ◽  
Frank Sonntag
Keyword(s):  
Oxygen Transfer ◽  
Chemical Resistance ◽  
Cell Cultivation ◽  
Active Components ◽  
Pure Nitrogen ◽  
Micro Pump ◽  
Before And After ◽  
Process Gases ◽  
Fluorescence Lifetime Detection ◽  
Sufficient Oxygen

AbstractIn this work a microfluidic cell cultivation device for perfused hypoxia assays as well as a suitable controlling unit are presented. The device features active components like pumps for fluid actuation and valves for fluid direction as well as an oxygenator element to ensure a sufficient oxygen transfer. It consists of several individually structured layers which can be tailored specifically to the intended purpose. Because of its clearness, its mechanical strength and chemical resistance as well as its well-known biocompatibility polycarbonate was chosen to form the fluidic layers by thermal diffusion bonding. Several oxygen sensing spots are integrated into the device and monitored with fluorescence lifetime detection. Furthermore an oxygen regulator module is implemented into the controlling unit which is able to mix different process gases to achieve a controlled oxygenation. First experiments show that oxygenation/deoxygenation of the system is completed within several minutes when pure nitrogen or air is applied to the oxygenator. Lastly the oxygen input by the pneumatically driven micro pump was quantified by measuring the oxygen content before and after the oxygenator.

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