electromagnetic drive controllable

Evaluating NASA's Futuristic EM Drive – NASASpaceFlight.com

Apr 29, 2015 ... Thrust measurements of the EM Drive defy classical physics' expectations that such a closed (microwave) cavity should be unusable for space .... In the US tests, microwave frequency generation was controlled via a voltage-controlled oscillator whose signal was passed to a variable voltage attenuator.

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1 Net thrust measurement of propellantless microwave ... - Emdrive

compact structure, high efficiency and easily controllable thrust. Roger Shawyer of British Satellite Propulsion Research Co., Ltd. (SPR Ltd.) conducted important research into propellantless microwave thrusters. Roger Shawyer called the propellantless microwave propulsion devices the "electromagnetic drive" (emdrive).

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The Science Behind the Impossible EM Drive - Popular Mechanics

Jan 13, 2017 ... One of the most controversial stories in science right now is the EM Drive, a hypothetical new type of spacecraft engine that seems to break the laws of physics. While many scientists are highly skeptical the device even works, it's been tested multiple times, including by a team of NASA scientists, and some...

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Everything You Need to Know About the EmDrive Thruster | Digital ...

Apr 5, 2017 ... The point here is that, should the Unruh Effect and Unruh Radiation be confirmed, it offers an entirely plausible explanation for the EM Drive's seemingly heretofore impossible thrust observations. This will require further research and experimentation, and gives the propulsion system even more momentum...

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EMDrive/satellite | Hackaday.io

May 4, 2015 ... The V3 is a silver cavity build, fed by a fully controllable RF source capable of beeing tuned between 22 and 26 GHz. The reflected power can be ..... Probably been covered before, but why would an EM-drive be better than simply expelling photons (either RF or light) efficiently? That is, not making a...

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Electromagnetic propulsion - Wikipedia

Electromagnetic propulsion (EMP), is the principle of accelerating an object by the utilization of a flowing electrical current and magnetic fields. The electrical current is used to either create an opposing magnetic field, or to charge a field, which can then be repelled. When a current flows through a conductor in a magnetic...

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The EM Drive: Fact or Fantasy? | Space Time - YouTube

Jan 11, 2017 ... Because you demanded it … we break down the EM Drive! Support us on Patreon! https://www.patreon.com/pbsspacetime Get your own Space Time tshirt at http://b...

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Dynamic electromagnetic metamaterials - ScienceDirect

(c) Schematic of the electronically controlled hybridized HEMT/metamaterial device. The metamaterials are connected with metal wires. The polarization orientation of incident THz wave is normal to the wires. (d) The cross-section view of the device near the split gap. (e) Differential transmission as a function of applied bias...

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Recent Activities - EmDrive Forum

Feb 27, 2018 ... Suggesting to implement a ssm in a Em drive was just a headquirk. i KNOW that the EM needs alot more net force. if there ever be a solid state version of a EM developed, it… ... Shawyer made his second generation Em drive with a superconducting end plate. ... The Purcell factor is also more controllable.

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Characteristics Verification of an Independently Controllable ...

Jun 10, 2014 ... We have been developing electromagnetic spherical actuators capable of three-degree-of-freedom rotation. However, these actuators require complex control to realize simultaneous triaxial drive, because rotation around one axis interferes with rotation around another. In this paper, we propose a new...

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NSF Thread 2 - EM Drive

Dec 12, 2014 ... If, by some miracle of physics, EM drives work spectacularly well, they could replace chemical rocketry for orbital insertion completely and make space access trivial. If EM drives offer any degree of ...... In other words, gravity-like fields should be experimentally controllable. Present physics believes that...

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Star Trek Warp Drive Physics and Future Space Travel Op-Ed

May 22, 2013 ... The upcoming "Star Trek" game rekindles the show's voyage of exploration, but it's also a shoot-em-up title. Credit: Namco Bandai. Marc G. Millis headed NASA's Breakthrough Propulsion Physics Project and took an early retirement to continue this work as part of the interstellar research activities of the Tau...

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Electrical machines and drives — Department of Electrical Energy ...

to electric machine design (e.g. losses in machines, electromagnetic noise of machines, …) and to ... The machine lab has numerous test benches for electrical machines and drives with controllable DC and AC supplies, several load machines, VXI data acquisition systems, torque, current and voltage sensors and position...

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A double fed three-phase flux-switching linear motor with ...

The air gap flux density can be regulated by changing the magnitude of DC excitation current, so it can not only reduce the drive system cost but also offer controllable electromagnetic force and electromotive force (EMF). This is helpful to extend the motor speed range and improve the system efficiency at different loads and...

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Magnetically Coupled Adjustable Speed Motor Drives

speed while the magnetic coupling controls the torque transferred and the speed of the driven equipment. This works by varying the strength of the magnetic field between the motor shaft and the load shaft. The strength of the magnetic field is controlled by varying the width of an adjustable air gap or by varying the amount...

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GKN Driveline makes all-wheel drive even more responsive in ...

Tochigi, Japan, 26 October 2016: GKN is developing a new intelligent electromagnetic all-wheel drive (AWD) coupling for SUVs and crossovers that will help make future AWD vehicles even more responsive and controllable on low-grip surfaces in low temperatures. GKN will present the innovation at the company's 25th...

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Patent images - Gyroscopes - Everything you needed to know

centripedal device for concentrati.. gyroscopic apparatus, conversion of rotational output to.. controllable gyroscopic propulsion.. gyrostat propulsion system.. propulsion system, nonlinear electromagnetic propulsi.. translational force generator.. gyrostat propulsion system.. propulsion system, nonlinear electromagnetic...

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Magnetic actuators & motors - Cedrat Technologies

The new MICA™ Moving Iron Controllable magnetic Actuator developed by CEDRAT TECHNOLOGIES thanks to Oseo is an innovative biased (polarised) .... The multi-channel Linear Amplifier LA24 is designed as a low noise, high bandwidth linear amplifier for finely driving every magnetic actuator from CEDRAT...

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Characteristics Verification of an Independently Controllable ... - MDPI

Jun 10, 2014 ... We have been developing electromagnetic spherical actuators capable of three-degree-of-freedom rotation. However, these actuators require complex control to realize simultaneous triaxial drive, because rotation around one axis interferes with rotation around another. In this paper, we propose a new...

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Principles and applications of a controllable electromagnetic band ...

Apr 3, 2009 ... This paper presents the principle of two types of conformable and controllable spherical radome based on Electromagnetic Band Gap (EBG) materials operating at around 10 GHz. The EBG structure is composed of a grid of metallic wires conformed on a hollow spherical object. Two switching control...

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A Voice Coil Powered Controllable Micro-Jet Injection ... - CiteSeerX

Sep 11, 2015 ... capacitor was used to discharge electricity that passes through the coil to produce the electromagnetic force. (Lorentz force) high enough to obtain a high velocity jet. Because the driving force (Lorentz force) can be con- trolled and regulated through the current intensity and the time passing through the coil,...

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Electromagnetic and electromechanical processes in the variable ...

Implementation of the circulating pump with double-speed asynchronous engine in the variable electric drive determined it necessary to carry out investigations of electromagnetic and electromechanical processes at control modes of the main and additional stator windings. Those modes were modeled on the basis of...

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Vibration Control of Resonant Vibratory Feeders With ...

The vibratory feeders with electromagnetic excitation called electromagnetic vibratory ... Electromagnetic drives offer step-less, accurate and repeatable setting of the oscillation amplitude, a long life (absence of wearing mechanical part, such as gears, cams belts, bearings ... conveying drive, has behavior of the controllable.

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MEMS mirrors - Hamamatsu Photonics

Sep 1, 2016 ... Drive method. 1 - 3. There are several general MEMS mirror drive methods. [Table 1-1]. Our MEMS mirrors are electromagnetic. This method requires only a low voltage to drive both resonant mode or non-resonant ... of the mirror cannot be controlled highly accurately. Non-linear mode is used to drive a...

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Driver Design in Piezoelectric Motors | Mouser

For electromagnetic motors, the drive function requires sourcing and sinking current into the electromagnetic coils, which is usually done using power semiconductors (MOSFETs or IGBTs). These power devices are controlled by drivers that turn them on and off at the correct times, with appropriate slew rates, and they must...

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Trainers & Rollers - CycleOps

Direct drive design for increased bike compatibility and quiet performance. Innovative electromagnetic resistance provides rapid response resistance and maximum power. Seamlessly connects to virtual training ... Controlled, electromagnetic resistance provides a precise workout every time. Dual ANT+ and Bluetooth Smart...

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Modeling and Control of Bulk Material Flow on the Electromagnetic ...

Feb 13, 2017 ... possible to adjust the frequency of driving electromagnetic forces, as well as its duration and amplitude. In this way, the whole conveying system with EVF has a behavior of the controllable mechanical oscillator [7-12]. On the other hand electromagnetic drives offer easy. Online ISSN 1848-3380, Print ISSN...

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Retsch AS 450 Control Vibratory Sieve Shaker - Certified Material ...

The analytical sieve shaker AS 450 control is used in research & development, quality control of raw materials, interim and finished products as well as in production monitoring. The controllable electromagnetic drive offers an optimal adaption for every product. Sharp fractions are obtainable even after very short sieving...

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Electromagnetic Fully Flexible Valve Actuator - Engineering Matters ...

controllable seating velocity. It operates on a design principle distinct from existing actuators: the electromagnetic actuator exerts appreciable bi- directional force throughout the device stroke mitigating the need for mechanical spring-derived resonance. The. FFVA is a direct drive device with a unique magnetic structure that...

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Has China cracked Nasa's 'impossible engine'? | Daily Mail Online

Sep 11, 2017 ... Engineers carried out controlled bursts at 40, 60 and 80 watts, reporting that the thrust achieved in a vacuum was similar to the performance achieved in .... Leaked NASA paper shows the 'impossible' EM Drive really does work - ScienceAlert · Next Big Future: New NASA Emdrive paper shows force of 1.2...

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Excitation of surface electromagnetic waves in a graphene-based ...

Oct 15, 2012 ... The proposed graphene based Bragg grating can find a variety of potential surface electromagnetic wave applications such as sensors, fluorescence emission enhancement, modulators, etc. ..... Bloch surface waves-controlled emission of organic dyes grafted on a one-dimensional photonic crystal .

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A hybrid actuated microrobot using an electromagnetic field and ...

May 5, 2015 ... with bacteriobot, electromagnetic actuated microrobot has larger driving force and locomotive controllability due to their position recognition and magnetic field control. However, because electromagnetic actuated microrobot does not have self-tumor targeting, they need to be controlled by an external...

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Electromagnetic Modeling and Design of Haptic ... - Centro Piaggio

2-D and quasi-3-D MRF-based devices capable of suitably energizing fluids with a magnetic field in order to build shapes that can be directly felt and explored ... A suitable control strategy should be implemented to drive the MR fluid in order ... Magnetorheological fluids, also termed controllable fluids, are a particular class...

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Space Drive - GeoSoc

The requirement that there must be a controllable means to alter the collisions ensures that a controllable propulsive effect can be created. The supposition that space contains an isotropic medium is reasonable. Space contains electromagnetic fluctuations of the vacuum, also called the Zero Point Fluctuations (ZPF) 7,...

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Mechanically-driven diaphragm and electromagnetic metering pumps

Hydraulically-backed diaphragm pumps can withstand tough conditions in process applications; mechanically-driven diaphragm metering pumps are available for general purpose, and electromagnetic metering pumps with excellent controllability and accuracy fit smaller applications. ... Magnetic Drive Pumps, Find your...

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EI Electromagnetic Sieve Shaker, Usage: Industrial, Laboratory | ID ...

Electromagnetic sieve shaker 918 control is used in research & development, quality control of raw materials, interim and finished products as well as in production monitoring. The controllable electromagnetic drive offers an optimal adaption for every product. Sharp fractions are obtained even after short sieving times.

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Vibratory Sieve Shaker AS 200 control

Jun 24, 2016 ... Vibratory Sieve Shaker AS 200 control. General Information. The analytical sieve shakers of the series AS 200 are used in research & development, quality control of raw materials, interim and finished products as well as in production monitoring. The controllable electromagnetic drive offers an.

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Meet the nanomachines that could drive a medical revolution

Apr 21, 2016 ... The atom is trapped in a cone of electromagnetic energy and lasers are used to heat it up and cool it down, which causes the atom to move back and forth .... Several groups of researchers have recently constructed a high-speed, remote-controlled nanoscale version of a rocket by combining nanoparticles...

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Block Radio Waves - Scientific American

Dec 22, 2011 ... When current flows within a wire, it generates an electromagnetic field around the wire. ... When the electromagnetic radio waves hit a receiving antenna, or receiver, such as a radio, it generates a current inside of a wire in the receiver. ... A smooth, wide open space to test drive your radio-controlled car

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Linear Solenoids | Kendrion

This is just one example of the large variety of standard solenoids Kendrion has to offer. Single Stroke Solenoids have long strokes and large forces with low power consumption at their maximum travel; Reversible Solenoids can be controlled in both directions with two coils included within the housing; Frame Solenoids are...

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