Precision bonding makes tiny high performance actuators possible

October 04, 2005 industrial petroleum products

Linear actuators usually serve as part of motion control systems. These days most are run by computers. Control systems, a device that you find linear actuators in, move or control objects. This is made possible by the actuators.

petroleum refiner
Using a new precision bonding process they developed, Penn State researchers have designed and fabricated tiny new piezoelectric microactuators - the largest only a hair's breadth wide - based on coupling commercially available materials with existing micromachining technology.

Giving low and high speed braking efficiency, reduced stopping distances and consistent brake pedal feel from cold, DS Performance are the drivers choice for safe, high performance braking.

petroleum products

$129. $411.76 Precision Gear When it comes to performance vehicles, you need a gear set that was designed with racing in mind. Precision Gear high performance ring & pinion sets offer the optimum in quality and durability. Designed to handle the excess loads of racing in arenas such as NASCAR, SCORE, CORR & NHRA. $139. $445.99

rubatex international
The new actuators promise to be low cost, and capable of providing controlled force, high resolution and large displacements appropriate for applications in RF switches for cell phones, for example, or optical switches for wide screen TVs. Other potential applications include microfluidic pumps and valves, micromanipulators for nanoscale handling and atomic force microscope drives.

Best Selling Price Low to High Price High to Low Brand A to Z Brand Z to A List Previous $232.25 $109.99 Setting the pace for design, dynamics and technical precision, Blackhawk soars high in ultimate performance. Engineered with unsurpassed optical performance and durability by those who understand the ...

rubatex msds

If you havena t bought your car yet, think very carefully. All insurers are different, and some will specialise in quotes for high performance cars. Generally though, the more powerful your engine, the higher the premium. This is because insurers equate high performance cars with high speed drivers a who are statistically more likely to make claims.

rubatex neoprene
Dr. Srinivas A. Tadigadapa, associate professor of electrical engineering and a developer of the bonding process and microactuator, says, "These new piezoelectric microactuators are the first realized using microfabrication methods, a mature technology used to make computer chips and micromachines from silicon-based materials. Our new low temperature wafer bonding techniques, which make the actuators possible, can also be used for precision integration of dissimilar materials in other micro-electro-mechanical systems." rubatex pipe
rubatex pipe insulation
The new actuators and bonding process are described in a paper, Fabrication and performance of a flextensional microactuator, which appears in the current online edition of the Journal of Micromechanics and Microengineering (JMM). The paper will also be featured in the October print version of JMM. rubatex 180
rubatex 180 fs
The authors are Jongpil Cheong, who earned his doctorate at Penn State this year, Abhijat Goyal, a doctoral candidate in electrical engineering, Dr. Tadigadapa and Dr. Christopher D. Rahn, professor of mechanical engineering. rubatex 1800
rubatex 320
The new actuators are made from flat strips of bulk PZT, a commercially available piezoelectric material that shrinks slightly when a voltage is applied to it, and a precision micromachined silicon beam. Bonding the silicon beam to the PZT amplifies and converts the PZT shape change into a convex deflection when the silicon beam buckles as the PZT shrinks. rubatex 373
rubatex rubber
In operation in the actuator, the measured deflection of the silicon beam shows a gain factor of 20 with respect to the PZT dimensional change. rubatex tape
rubatex closing
For the bonding process in fabricating the new actuators, the Penn State researchers use photolithography and low temperature solders to produce the distinctive bridge shape they need. rubatex closed cell gasketing
felpro gaskets
Dr. Tadigadapa notes, "The PZT depoles if you heat it too high. Therefore, the temperature is crucial. A low temperature solder bonding process at 200 C was used in this work." poly products supplies
poly hunting feeders
Using their new approach, the researchers have fabricated actuators with dimensions ranging from 350 to 600 microns in length, 50 to 100 microns (about the width of a human hair) in width, and 5 to 6 microns in thickness. shoreline 13171 17 neoprene
neoprene pads
In tests, the actuators showed good repeatability with a large amplitude stroke of about 8 microns when actuated using -100V to 100V. The bandwidth of the actuator was measured at 265 KHz. neoprene seat covers

Penn State