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Speed : 8mm/s Stroke : 24mm Weight : 32g Lod trust : 30N
23 Sep 2009
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14 Oct 2009
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This was a school project where we had to design and build a "syringe robot" that had four joints and could stack wooden blocks into a pyramid. I think it's more of a mechanical arm because it really doesn't do anything automatically. It works pretty well, although the gripper is more complicated than it could be. Overall, I think mine was the second best in the class. The following video shows how the joints work:
31 Aug 2014
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... for a Smart Life A new centre for Nanotechnology and Smart Materials Acoustic sensors embedded in textiles Advanced fibres for temperature self-regulation Advanced fibres Advanced sensors for health monitoring systems Advanced textile-based sensors/actuators Biobased geotextiles Bio-fibres used in tissue engineering Customised resistance nanocomposites Eco-efficient textile processes Enhancing human performance Environmental and user-friendly materials and processes Europe's West Coast Materials and Technology Fibres for complex in-vivo textile structures Flame retardant materials Flexible and Smart Materials Flexible materials with heat & moisture control Fully integrated and accurate systems Functional devices in automotive applications High-temperature fibres which last longer Improving quality of life Industry Driven and Innovation Oriented Intelligent materials for special-effects Intelligent, textile-based, flexible displays Light weight textile reinforced structures Low cost & high performance nanocomposites Luminescent fibres for increased safety Materials for enhanced ergonomics Materials which can recharge their functionalities Materials which work as electromagnetic shields Materials with enhanced biocompatibility Materials with thermal energy storage Multifunctional textiles which can change in colour and patterns Nanolayers for chemical/biological agent protection Nanostructured materials Partnership for Research, Technology and Development Photo sensitive smart materials Photovoltaic textiles for smart homes Real time data communication RFID for smart work environments Self-cleaning and anti-UV materials Sensors that control safety and generate energy Shape memory polymers and textiles Smart and multi-functional materials Smart materials and sustainable processing Smart materials for enhanced insulation Smart textiles and self-cleaning devices Stimuli sensitive fibres for rehabilitation Technical textile materials using nanotechnology Textile integrated sensors to detect object Textile materials for anti-viral effects Textiles as sensors-actuators for health control
19 Jul 2008
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The Most Advanced Quadruped Robot on Earth BigDog is the alpha male of the Boston Dynamics family of robots. It is a quadruped robot that walks, runs, and climbs on rough terrain and carries heavy loads. BigDog is powered by a gasoline engine that drives a hydraulic actuation system. BigDog's legs are articulated like an animal's, and have compliant elements that absorb shock and recycle energy from one step to the next. BigDog is the size of a large dog or small mule, measuring 1 meter long, 0.7 meters tall and 75 kg weight.
21 May 2009
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The General Dynamics Land Systems EFV is an amphibious armored tracked vehicle with an aluminum hull. The EFV has a crew of 3pax and can transport 17 Marines and their equipment. The aluminum hull has caused some controversy due to protection and flammability concerns. However, aluminum hulls have been used for decades in military ground vehicles and boats. The rear loading ramp is not able to open while the vehicle is afloat. This is also typical of other swimming military ground vehicles. For example, the M113 is another armored military ground vehicle the US currently is using that swims. It also has an aluminum hull, and its rear ramp cannot open while the vehicle is afloat. The engine is a custom MTU Friedrichshafen diesel (MT883) with two modes of operation; a high power mode for planing over the sea, and a low power mode for land travel. The hull has a hydraulically actuated bow flap to aid planing. Shrouded Honeywell waterjet propulsors are integrated into each side of the hull and hydraulically actuated chines cover the tracks while in seafaring mode. The Expeditionary Fighting Vehicle (EFV) is the newest USMC amphibious vehicle, intended for deployment in 2015. This vehicle is an amphibious armored personnel carrier; launched at sea, from an amphibious assault ship beyond the horizon, able to transport a full Marine rifle squad to shore. It will maneuver cross country with an agility and mobility equal to or greater than the M1 Abrams. The EFV is designed to replace the aging AAV, and is the Marine Corps' number one priority ground weapon system acquisition. The EFV has 3 times the speed in water and about twice the armor of the AAV, and superior firepower as well.
11 Sep 2008
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install control rod linkage - z-bends and figure 4 clevises, heat shrink tubing, and carbon fiber rods connect the MicroAct magnetic actuators to their respective control surfaces. This video will de-mystify some of the important bits of Micro R/C flying for you.
21 Dec 2008
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How to build a simple 2 DOF multipurpose motion simulator using recycled bits and pieces and 2 souped up linear actuators. ..With a bonus feature describing a mobility scooter hack 2 DOF motion sim using a reduction gear and crank setup.
23 Oct 2008
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Each group of 3-5 students needs to design an intelligent robot from scratch with various actuators, sensors and a microprocessor communicating with a Base Station (BS), which is a PC, through a wireless modem. The on-board sensors include a pair of motors, a servo, infrared and ultrasonic range finders. The robot is driven by a pair of motors mounted on the custom-made frame of the robot. The robot and the BS are programmed for different missions, including autonomous waypoint following, mapping, tracking, obstacle avoidance and path planning. The on-board microprocessor can handle all low-level control and simple tasks, such as obstacle avoidance, without the support from the BS, while the BS with high computational power is responsible for more intelligent tasks, e.g. real-time path planning. For localisation, each robot carries a reflective tape. A Laser Range Finder (LRF) scanning the reflective tape acts as a virtual GPS which provides the locations of all robots in the range of the LRF. Having the feedback from the LRF, autonomous waypoint following is achieved by implementing a controller.
4 Dec 2008
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~NOT MINE~ R32 skyline ...2.8 liter stroker 6 speed hks transmission low boost.. Information!!! The HCR32 Skyline debuted in May 1989. It was available as either a 2-door coupe or 4-door sedan/saloon, all other bodystyles were dropped. It featured several versions of the RB-series straight-6 engines, which had improved heads (the twelve port inlet was gone) and used the ECCS (Electronically Concentrated Control System) injection system. Also available were an 1800 cc 4 cylinder GXi model. Most models had HICAS four wheel steering, with the rear wheels being hydraulically linked to the front steering. The 2.5 litre version became one of the first cars made in Japan to feature a 5 speed automatic transmission. The GTS-t Type M included larger five-stud 16 in wheels, four piston front callipers and twin piston rears. ABS was optional (except for the GT-R), viscous LSD was standard on all turbo models and optional on all but the GXi. R32 Models: GXi Type-X - 1.8 L CA18i I4, 91 hp (67 kW) GTE Type-X - 2.0 L RB20E I6, 125 hp (93 kW, 172 N m) GTS Type-X, S, J - 2.0 L RB20DE I6 155 hp (115 kW, 184 N m) GTS-25 Type-X, S, XG - 2.5 L RB25DE I6, 180 hp (132 kW, 231 N m) GTS-t Type-M - 2.0 L RB20DET turbo I6, 212 hp (158 kW, 263 N m) GTS-4 - 2.0 L RB20DET turbo I6, 212 hp (158 kW, 263 N m) Atessa (RWD w/ FW assist) GTS-4 - 2.6 L RB26DE I6, 225 hp (169 kW, Atessa (RWD w/ FW assist) Autech Version - auto only GT-R - 2.6 L RB26DETT twin-turbo I6, 280 hp (206 kW, 368 N m) Atessa (RWD w/ FW assist) also NISMO, V-Spec and V-Spec II variants. GT-R The GT-R returned with twin ceramic turbochargers, all-wheel steering, all wheel drive, and 280 hp (206 kW) at 6800 rpm. The RB26DETT engine actually produced ~320 hp, but it was unstated due to the Japanese car makers' "gentlemen's agreement" not to exceed 206 kW (276 hp). The engine was designed for ~500 hp in racing trim, and then muzzled by the exhaust, boost restriction, and ECU. The electronic boost control had a small physical restriction in the control lines. It was marked in yellow so the new owner could remove it and enjoy a safe factory boost increase. The GT-R had Super HICAS, a more advanced computer controlled four wheel steering system using electric actuators. The GT-R had a significantly larger intercooler, larger brakes, and aluminum front guards and bonnet. Other distinguishing features include flared front and rear wheel arches. More supportive seats were fitted, and the turbo boost gauge and digital clock were removed from inside the instrument cluster. The clock was replaced with a torque meter that indicated how much torque was being delivered to the front wheels (0%-50%). Oil temp, voltage and turbo boost gauges were fitted below the climate control. The Porsche 959 was Nissan's target when designing the GT-R. The chief engineer, Naganori Itoh, intended to use the car for Group A racing, so the design specification was drawn up in conjunction with a copy of the Group A rules. The Nordschleife production car record at the time of development was 8'45" - set by a Porsche 944. Nissan test driver Hiroyoshi Katoh reset the record with a time of 8'20".[5] Best Motoring managed 8'22"38.[6] The R32 GT-R dominated JTCC, winning 29 races from 29 starts, taking the series title every year from 1989-1993.[7] It took 50 races from 50 starts from 1991-1997 (latterly R33) in the N1 Super Taikyu. The R32 GT-R was introduced in the Australian Bathurst 1000 touring-car race to compete against GM Holden and Ford V8 saloons, winning in 1991 & 1992. This success led to the Australian motoring press naming the car Godzilla due to it being a "monster from Japan" and as Australia was the first export market for the car the name quickly spread. However, the GT-R's success was a major contributing factor, sounding the death knell of Group A Touring Car racing; with the formula being scrapped soon after. JTCC was similarly blighted by the R32 GT-R, and splintered soon after, leading to the switch to the Supertouring category and also indirectly to the GT500 category of today. When originally designed, the homologation rulebook mandated 16" wheels, so that's what the GT-R got. This limited the size of the brakes, and the Nissan four pots weren't really up to competition use. A later change in rules allowed 17" wheels, so in February 1993 the GT-R V-spec (for Victory) emerged wearing 17" BBS mesh wheels covering larger Brembo brakes. The clutch actuation changed from a push to a pull system, and the car received an active rear differential. A year later the V-Spec II appeared with a new sticker and wider tires
27 Jan 2009
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Amerigo International — This is the ultimate family Expedition Vehicle. It offers a breakthrough level of capability, range, safety, reliability, luxury, and space. UNICAT offers the 7400 chassis in factory built regular, extended or crew cab in 4X4 or 6X6 configurations. Four body sizes are available - 193", 205", 217", and 228". Wheel bases are offered in 177", 183", 193", 195", 213", 226", 232", 244", and 250". All body sizes are available on all cab configurations. Variations impact dimensions of the kitchens, bathrooms, and seating areas. Straight back models may be fitted with motorcycle racks. Cab Upgraded cab - leather & wood trim, additional insulation SS fire extinguisher at floor on left side of driver seat Seats - adjustable air suspension front Cab rear suspension air bag type Power windows & doors w/remote control Full gauges & instrumentation Cobra CB radio Alpine CDA-9857 AM FM XM CD Ipod stereo system GPS Garmin 7500 w/rear view camera and weather fax Chassis International 7400 4x4 Extended cab - Overall length 372, width 98, height 144 GVWR 33,000 lb, GCVWR - 80,000 lb Wheelbase 213 (5410 mm), cab-to-axle 112, axle-to-frame 75 Frame rails heat treated alloy steel 120,000 lb psi, 10.866 X 3.622 X 0.433 (276mm X 92mm X 11.1mm) DT570 50-state, 310 hp, 950 lb-ft torque 1200 rpm, #2 bell housing 8 mpg 60 mph Chassis batteries 2 X 210 ah AGM marine Supplemental alternator 90a with I-U charging regulator for body Engine block heater Phillips 120v/1250w, located below drivers door Air compressor Bendix TU-FLO 550, 13.2 cf quick connects front and rear Allison 3000 RDS P close ratio, 6-speed w/overdrive Transfer case Meritor T-4210, 2-speed, 10,000 lb w/provision for PTO All wheel drive, engageable Front axle - Meritor MX-12-120 single reduction, 12,000 lb Rear axle - Meritor RS-21-145 single reduction, wide track, 21,000 lb w/driver controlled main locking differential, 200 series wheel ends and ABS gear ratio: 5.13 Air brake ABS Bendix antilock brake system, 4-channel Front brakes air cam, S-cam, 16.5 X 5.0 inc 20 sq in MGM long stroke brake chambers Rear brakes air cam 16.5 X 7.0 inc MGM TR3030 long stroke brake chamber and HD spring actuated parking brake Exhaust brake D Logic, electronically activated Air dryer Bendix AD-IP with heater Alcoa 22.5 aluminium wheels Michellin XZL 445/65R22.5 Fuel tanks 2 X 120 gal w/ 9mm skid plates (approximately 2,000 mi range) Racor fuel prefilters w/ water separators/heaters SS roof rack in-motion TV antenna, generator cooling system, work lights, and 4 X Hella 2100 HID lights SS wire mesh head lights brush & stone guards Winches hydraulic 15,000 lb front & rear w/15 gal reservoir and PTO pump Rear bumper - SS fold-down under-ride protection Water fording - all breather tubes raised to minimum 5, positive pressure in generator compartment, sealed storage compartments Generator 8kw Fischer Panda Spare - rear mounted w/manual hoist Rear rack manual hoist, adaptable for storage, inflatable boat/outboard, bicycles or motorcycle
24 May 2009
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With many operators and civilians alike. the Spyderco Military is the quintessential tactical folder. Its 4 S30V clip blade is extremely fast into action, locks up tight and stands ready for both thrust and slash cuts. The Millie wears a slightly larger 14mm deployment hole to facilitate gloved hand actuation. And along that theme, the nicely textured G10 grip is nice and big and provides plenty of real estate for various grasping options. As such the Military merits serious consideration ...
12 Apr 2009
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Three X-15s made 199 flights during a research program which lasted from 1960 through 1968. It was a daring, yet highly successful program that resulted in hundreds of technical reports. It made contributions to the NASA space program of the 1960s and also on the design and flight of the Space Shuttle many years later. An unofficial motto of flight research of the 1940s and 1950s was "higher and faster." By the late 1950s the last frontier of that goal was hypersonic flight (Mach 5+) to the edge of space. It would require a huge leap in aeronautical technology, life support systems and flight planning. The North American X-15 rocket plane was built to meet that challenge. It was designed to fly at speeds up to Mach 6, and altitudes up to 250,000 ft. The aircraft went on to reach a maximum speed of Mach 6.7 and a maximum altitude of 354,200 ft. Looking at it another way, Mach 6 is about one mile per second, and flight above 264,000 ft. qualifies an Air Force pilot for astronaut wings. The plane was air launched by NASA's converted B-52 at 45,000 feet and a speed of 500 mph. Generally there were two types of flight profiles: high-speed, or high-altitude. High-speed flights were usually done below an altitude of 100,000 feet and flown as a conventional airplane using aerodynamic controls. High-altitude flights began with a steep, full-power climb to leave the atmosphere, followed by up to two minutes of "coasting up" to the peak altitude after the engine was shut down. "Weightless" flight would last for 2 - 5 minutes as it made a ballistic arc before reentering the atmosphere. A reaction control system was used to maintain attitude above the atmosphere. The reaction controls employed hydrogen peroxide thrusters located on the nose and wings. Depending on the mission, the rocket engine provided thrust for the first 80 to 120 seconds of flight. The remainder of the normal 8- to 12-minute flight was without power and ended in a 200-mph glide landing. Because the nose landing wheel lacked steering and the main landing gear employed skids, the X-15 had to land on a dry lakebed. The Rogers Dry Lake adjacent to Edwards and Dryden was the intended landing location for all flights, but there were numerous emergency lakebeds selected in advance for emergency landings. The X-15 program made many accomplishments, here is list of some of its contributions to space flight: * First application of hypersonic theory and wind tunnel work to an actual flight vehicle. * First use of reaction controls for attitude control in space. * First reusable super alloy structure capable of withstanding the temperatures and thermal gradients of hypersonic reentry. * Development of [a servo-actuated ball] nose flow direction sensor for operation over an extreme range of dynamic pressure and a stagnation air temperature of 1,900 degrees Fahrenheit [for accurate measurement of air speed and flow angle at supersonic and hypersonic speeds]. * Development of the first practical full pressure suit for pilot protection in space. * Development of inertial flight data systems capable of functioning in a high dynamic pressure and space environment. * Discovery that hypersonic boundary layer flow is turbulent and not laminar. * Discovery that turbulent heating rates are significantly lower than had been predicted by theory. * First direct measurement of hypersonic skin friction and discovery that skin friction is lower than had been predicted. * Discovery of hot spots generated by surface irregularities. [These last 4 discoveries led to improved design tools for future hypersonic vehicles, including the Space Shuttle.] * Discovery of methods to correlate base drag measurements with tunnel test results so as to correct wind tunnel data [and thereby improve design criteria for future air- and spacecraft]. * First application of energy-management techniques [for the positioning of the vehicle for landing; these were essential for the landing of the Space Shuttle and all future reusable launch vehicles following their reentry from space.] * Use of the three X-15 aircraft as testbeds carrying a wide variety of experimental packages. The X-15 had its share of emergency landings and accidents, but only two produced serious injuries or death. On Nov. 9, 1962, Jack McKay experienced an engine failure and landed at Mud Lake, Nev. The landing gear collapsed, flipping him and the aircraft on its back. Although he recovered from his injuries sufficiently to fly again, he eventually had to retire because of them. On Nov. 15, 1967, on Michael Adams seventh flight, he entered a spin from which he was able to recover but could not bring it out of an inverted dive because of a technical problem with the adaptive flight control system. He died in the resultant crash of the X-15 number three.
2 Jul 2009
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GO TO and for more life-like robots information, videos and photos. The Legged Learning Robot LittleDog is a quadruped robot for research on learning locomotion. Scientists at leading institutions use LittleDog to probe the fundamental relationships among motor learning, dynamic control, perception of the environment, and rough terrain locomotion. LittleDog has four legs, each powered by three electric motors. The legs have a large range of motion and workspace. The motors are strong enough for dynamic locomotion, including climbing. The onboard PC-level computer does sensing, actuator control and communications. LittleDog's sensors measure joint angles, motor currents, body orientation and foot/ground contact. Control programs access the robot through the Boston Dynamics Robot API. Onboard lithium polymer batteries allow for 30 minutes of continuous operation without recharging. Wireless communications and data logging support remote operation and analysis. LittleDog development is funded by the DARPA Information Processing Technology Office.
30 Aug 2009
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High performance jet fighters have used a variety of morphing mechanisms in the past such as variable-sweep wings and fowler flaps to expand the flight envelope and enhance mission capability. The Morphing Aircraft Structures Program takes this concept to a higher level. Radical shape changes such as a significant increases or decreases in wetted area could allow a single platform to conduct two or more diverse missions. The ability to perform both high altitude persistent Intelligence, Surveillance and Reconnaissance and also rapidly respond to Time Sensitive Targets could provide the warplanner with options not previously available. Seamless skins, smart actuators and adaptive flight control technologies are key to this revolutionary approach to flexible combat aircraft design. Integration of network centric interoperability and tailored survivability could produce a weapon system that compliments state-of-the-art systems including the F-22A and F-35.
5 Sep 2009
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See my website for more information: Here we are trying to show the charging sequence. The red fullbatt led comes on then goes off after the voltage drops to 11 volts. The green highbatt led is on from 11 volts to 9 volts and then goes off. Then no leds are on until the battery drops below 8 volts and the red lowbatt led turns on. Then the servo tries to actuate the valve. It is having problems so we tried to help it out. You can see some voltage does appear on the multimeter. There are still problems however. We think the air hose is crimped and that is why the air isn't powering the air grinder and genererating electricity.
6 Sep 2009
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