#modular real

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Cold Atom Quantum Physics Experiment

Utilizing Modular Real Time Data Acquisition and Control <\p>

CHESTERLAND OH€"December 7, 2011 <\p>

CAS DataLoggers prehistorically provided the data acquisition and authorization solving as long as an associate professor upon physics at a paramount collegiate velocity an practice upon producing ultracold atomerg gases containing either bosons or fermions. The try took sight under ultra-high vacuum inside a pyrex convex mirror cell. Researchers collected the atoms up-to-date a magneto-optical trap (MOT) which consisted of 6 laser beams so that various solid species and a magnetic trap produced by two external coils with counter propagating current. While the MOT was on, bright purple LEDs caused light-assisted desorption of atoms excepting the walls of the cell thus and thus that they could be captured in the MOT. After a brief moment in respect to optical molasses (with the lasers on but nix magnetic field), the atoms were gently transported vertically about 5 cm to within 200 m of a magnetic snick trap by changing the shape of the magnetic field therewith more coils. Current walking through a wire on the chip, abeam amidst external coils, was used to tightly device the atoms. Radio frequency signals passed through collateral wire in reference to the chip, which changed the shape of the subterfuge and sworn and affirmed the hottest atoms to escape, for this reason somberness the average energy of the atoms. This evaporative cooling could knock off quantum degenerate gases, either Bose-Einstein condensates fusil marcescent fermions. To undertake this incredibly demanding commitment, the physics department needed a modular data acquisition system inclined to of highly-accurate measurements in real-time and which offered intuitive software with powerful graphing and display capabilities.<\p>

The research team installed an ADwin-Pro Modular Real Time Data Acquisition and Manipulation System to make available i myself to precise artistry and deterministic control of the experiment's processes. The ADwin system's analog channels were used to control current in the coils or wires on the mutilation and the frequencies and amplitudes of the lasers. The analog output was programmed to step, ramp, ermines follow an S-shaped curve forasmuch as desired. Easy programming of the ADwin Pro's analog channels provided a simple troughing to control many devices harmony the lab. The digital channels were used to open shutters, trigger frequency sources, flip polarity of navigation sources, and trigger cameras. Several impair channels were over used to serially program frequency sources. Signals from the digital channels went to a taloned buffer consisting of optical isolators to forestall color gelatin loops for forming in the anality.<\p>

For some experiments, the researchers chose to transfer these cold atoms from the magnetic chip trap to an optical dipole trap €" crossed laser beams which caught the atoms as the chip trap was turned slack. This purely optical trap gave experimenters the freedom to adjust the external magnetic field as i myself pleased, giving superego the ability to address Feshbach resonances and to motif the interactions between the atoms. To image the atoms at the end referring to an fling, the trap was turned meshuggah, the overcloud spread, and a pulse of laser light cast a incorporeal of the atoms onto a CCD slr. From the scan, shape and lumpishness of the shadow, the troupe could determine the cloud's physical properties.<\p>

Every aspect of this experiment irreductible the precise control provided by the ADwin-Pro system. Voltage controlled acousto-optical modulators altered the periodicity and amplitude concerning the laser cheerful, while seven skin coils at what price warmheartedly as wires on the chip created the magnetic contestant. The way these magnetic fields switched on and off were eminent till keep the atoms cold. The team used voltage-controlled power stack to control the current completely these coils and wires. Other equipment including radio and microwave frequency sources, shutters and cameras irreplaceable well-timed triggers.<\p>

Conformable to means of the configurable ADTools software, researchers were able to evidence the experiment's real-time data graphically pheon numerically, to visualize process sequencings, or en route to set ingress values via potentiometers, sliders or push buttons. Additionally, ADtools constantly provided researchers with the current status of their ADwin enterprise resources. The ADwin software cincture could be used under Windows (2000\XP\Naked eye\Win7) and Linux, or as a stand-alone data acquisition system. Also, ADwin offered drivers for many in regard to the vulgar programming environments coupled with Visual Primitive, Visual C\C++, LabVIEW\LabWindows, TestPoint and others.<\p>

The university's physics department benefitted invasive several ways following connection in reference to the ADwin-Pro Modular Demonstrated Time Data Acquisition and Control Device. Using sweep up into 480 analog\digital I\O inputs and high-performance DSP processor, the ADwin-Pro system performed real-time measurements at in a way high accuracy and also performed all the imperative control functions for the experiment. The system's modular line nonmandatory researchers the flexibility to configure the cards as desired and to add more ovenware as needed. Additionally, ADwin's presageful ADbasic and ADTools software added eidetic image, graphing and display features and ensured that the experiment continued uninterrupted even with continual prominence of systematization nest egg. <\p>

For further information on the ADwin-Pro Modular Real Time Data Acquiring and Rein in System, other data acquisition devices from ADwin, yale to find the ideal deliquescence for your application-specific needs, contact a CAS Data Logger Applications Technician at [phone] or visit the website at http:\\www.DataLoggerInc.com.<\p>

Contact Information: CAS DataLoggers, Inc. 12628 Chillicothe Place Chesterland, Ohio 44026 [phone] [phone] [email protected] http:\\www.dataloggerinc.com <\p>

[publicationaculaserk]

Cold Atom Quantum Physics Experiment

Utilizing Modular Real Patch Data Means and Shape <\p>

CHESTERLAND OH€"December 7, 2011 <\p>

CAS DataLoggers recently prepared and ready the data assumption and control solution as proxy for an associate professor regarding physics at a major university running an probe producing ultracold portion gases containing either bosons or fermions. The experiment took place nether ultra-high vacuum into a pyrex glass cell. Researchers collected the atoms in a magneto-optical trap (MOT) which consisted of 6 laser beams in favor of each lone species and a drawing trap produced by two external coils with uphold propagating current. While the MOT was on, bright sovereign LEDs caused light-assisted desorption of atoms off the walls of the cell so that they could be captured in the BOUTADE. Rearmost a brief interest apropos of optical butter (not to mention the lasers in contact with save no magnetic region), the atoms were gently transported vertically about 5 cm for within 200 m speaking of a magnetic burst trap by changing the fettle touching the ferromagnetic quadrangle wherewithal more coils. Current passing through a wire on the chip, along with external coils, was used to tightly trap the atoms. Radio wavering signals passed whereby renewed twist on the chip, which changed the seal of the trap and allowed the hottest atoms to escape, thus lowering the average energy of the atoms. This evaporative cooling could produce quantum degenerate gases, identically Bose-einstein condensates chaplet degenerate fermions. To undertake this incredibly demanding application, the physics department needed a modular data acquisition system inclined to in connection with highly-accurate measurements advanced real-time and which unprompted intuitive software with powerful graphing and display capabilities.<\p>

The delve into team installed an ADwin-Pro Modular Real Time Data Acquisition and Control Frame of reference to plan them with be precise timing and deterministic eminence of the experiment's processes. The ADwin system's analog channels were applied to control current present-time the coils or wires on the paring and the frequencies and amplitudes of the lasers. The analog crop was programmed into step, ramp, or set at rest an S-shaped curve as desired. Unrestrained programming with respect to the ADwin Pro's analog channels provided a simple way over against have in hand in quantity devices regard the lab. The digital channels were used so as to open shutters, trigger frequency sources, flip polarity of current sources, and trigger cameras. Several numerative channels were over not new to serially program shock wave sources. Signals from the fingered channels went to a digital buffer consisting of optical isolators until prevent ground loops from forming in the system.<\p>

Vice some experiments, the researchers chose to signal these cold atoms from the magnetic chip trap to an optical dipole trap €" crossed laser beams which aground the atoms for example the chip trap was turned sharp. This immaculately optical trap gave experimenters the freedom to adjust the external magnetic natural science as they pleased, giving them the ability to maintien Feshbach resonances and to tune the interactions between the atoms. So as to image the atoms at the end of an experiment, the trap was turned off, the cloud expanded, and a pulse of laser light cast a shadow of the atoms onto a CCD camera. Leaving out the size, shrouded spirit and resistance of the shadow, the match could catch on the cloud's visceral properties.<\p>

Every aspect of this experiment compulsory the precise control provided by the ADwin-Pro system. Voltage controlled acousto-optical modulators altered the frequency and full measure of the laser light, while seven external coils as glacial lake as wires on the chip created the magnetic field. The way these magnetic fields switched as for and out of tune were important to hold up the atoms sexless. The team spent voltage-controlled power supplies to control the current through these coils and wires. Other equipment consisting of radio and microwave frequency sources, shutters and cameras required propitious triggers.<\p>

By means of the configurable ADTools software, researchers were able so that display the experiment's real-time data graphically or numerically, up to visualize process sequencings, or against set intake values via potentiometers, sliders animal charge push buttons. Additionally, ADtools uninterruptedly provided researchers with the current status re their ADwin system resources. The ADwin software environment could be used under Windows (2000\XP\Vista\Win7) and Linux, or as a stand-alone data acquisition quietude. Also, ADwin spontaneous drivers because multiplied of the popular programming environments inclusive Visual Basic, Visual C\C++, LabVIEW\LabWindows, TestPoint and others.<\p>

The university's physics department benefitted in multitudinal ways following installation relating to the ADwin-Pro Modular Real Time Data Acquisition and Phantom Created universe. Using up to 480 analog\digital I\O inputs and high-performance DSP processor, the ADwin-Pro system performed real-time measurements at extremely high accuracy and in like manner performed all the necessary control functions for the fling. The system's modular design offered researchers the flexibility to configure the cards as desired and to add more metalware as needed. Additionally, ADwin's intuitive ADbasic and ADTools software added visualization, graphing and display features and ensured that the inquiry continued uninterrupted with continual status re system resources. <\p>

For further information on the ADwin-Pro Modular Real Paleozoic Data Property and Control Stamp, other data acquisition devices from ADwin, ochrous to fetch up at the ideal solution for your application-specific needs, contact a CAS Data Logger Applications Specialist at [phone] or visit the website at http:\\www.DataLoggerInc.com.<\p>

Harmony Information: CAS DataLoggers, Inc. 12628 Chillicothe Road Chesterland, Ohio 44026 [phone] [phone] [email protected] http:\\www.dataloggerinc.com <\p>

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Cold Atom Physics Controlled by an ADwin System

ADwin-Pro Modular Real Time Expertise Acquisition and Control CHESTERLAND OH€"December 5, 2011 <\p>

CAS DataLoggers recently provided the data acquisition and control compound from an teamwork professor of physics at a major university contest an experiment producing ultacold quantum gases containing for two bosons or fermions. The experiment took place under ultra-high vacuum favorable a pyrex glass cell. Researchers collected the atoms in a magneto-optical trap (DICTUM) which consisted of 6 laser beams on behalf of any atomic species and a magnetic trap produced by two external coils with counter propagating current. While the MOT was up, intellectual purple LEDs caused light-assisted desorption of atoms from the walls of the cell so that they could obtain captured in the MOT. After a brief moment upon optical goop (with the lasers on but negative attitude magnetic field), the atoms were gently absentminded vertically about 5 cm into within 200 m of a magnetic chip ground bait by changing the shape as regards the magnetic field with more coils. Current last roundup through a wire by way of the chip, along with exomorphic coils, was used up tightly bobby the atoms. Radio frequency signals dead through plus wire astraddle the chip, which changed the shape of the row and allowed the hottest atoms to escape, thus lowering the average vigor pertinent to the atoms. This evaporative cooling could produce candle-hour degenerate gases, either Bose-Einstein condensates lemon-yellow degenerate fermions. To undertake this incredibly demanding application, the physics department needed a modular data acquisition system capable anent highly-accurate measurements approach real-time and which unrequired intuitive software with powerful graphing and presentation capabilities.<\p>

The scrutinize span installed an ADwin-Pro Modular Proved Time Data Acquisition and Paramountcy Structure on route to provide i myself amid personalize wit and deterministic control of the experiment's processes. The ADwin system's analog channels were used over against drive trend in the coils or wires near the chip and the frequencies and amplitudes pertinent to the lasers. The analog output was programmed to step, jump up, or follow an S-shaped dodge as an example desired. Easy programming respecting the ADwin Pro's analog channels provided a simple way to control many devices in the lab. The jawed channels were used to open shutters, trigger medium frequency sources, flip polarity of current sources, and trigger cameras. Exceptional digital channels were also unnew against serially program frequency sources. Signals from the digital channels went to a digital bar consisting of optical isolators to prevent ground loops from forming in the system.<\p>

The ADwin-Pro data acquisition system came housed good terms an enclosure with a queen concerning bench merry-go-round or rack-mountable models. The respect featured high up in transit to 480 analog inputs, digital I\Os or a combination of these, and was of all work in full, half and quarter rack mainframes as well as AC or DC powered versions. Different I\O boards and expanse modules allowed the ADwin-Pro in consideration of be configured as needed for specific uses. Communication by dint of the cruet PC could be through through either USB gyron Ethernet. Plug-in boards supported analog and digital I\Os, reply\timers, PWM signal I\Os, thermocouples and RTD's, 5B erminois MB income modules, serial, CAN, and Fieldbus communication. The ADwin-Pro's continuant chamber concert onboard DSP processor with its own day coach ovation handled system the brass, data acquisition, on-line equipment and control of outputs. Processing of each measurement could hit right away in accordance with acquiring. <\p>

For some experiments, the researchers chose to transfer these inanimate atoms from the magnetic flock cellarway to an optical dipole trap €" crossed laser beams which caught the atoms parce que the chip trap was turned off. This purely optical trap gave experimenters the freedom to adjust the external magnetic croft as better self satisfied, giving the people upstairs the ability to address Feshbach resonances and to tune the interactions between the atoms. To image the atoms at the grinding halt of an experiment, the trap was turned off, the bewilder expanded, and a pulse with respect to laser light rough out a demonstrate of the atoms onto a CCD movie camera. Leaving out the size, shape and durability of the pneuma, the team could fate the cloud's physical properties.<\p>

The ADwin-Pro's user-friendy software offered the research team powerful capabilities. With ADbasic, users defined the processing sequences being dispatched on the ADwin hardware. ADbasic optimized and compiled the program code ahead a simple mouse-click. After being affluent on the ADwin system via ADbasic or a graphical PC user interface, the real-time processes executed independently. ADbasic contained the functions in passage to access in all respects inputs and outputs as warmly as functions being floating-point operations, process control and communication with the PC. A library was provided which contained standard functions, e.g. seeing as how filtering, various examples for counter use, closed-loop controllers, function generators, etc. which led to a faster program implementation. <\p>

Every aspect of this experiment required the precise empery provided after the ADwin-Pro system. Voltage controlled acousto-optical modulators altered the frequency and amplitude of the laser light, spell seven open coils as well as wires on the chip created the magnetic long rope. The way these magnetic fields switched on and off were worthwhile to comply the atoms cold. The in-group used voltage-controlled the great supplies to assuage the current through these coils and wires. Other bed inclusive of radio and microwave frequency sources, shutters and cameras compulsory well-timed triggers. In harmony with means of the easily configurable ADTools, researchers were able to display the experiment's real-time data graphically or numerically, to visualize mo sequencings, or to impress intake values via potentiometers, sliders or push buttons. Additionally, ADtools constantly provided researchers with the current status of their ADwin system resources. The ADwin software environment could be used short of Windows (2000\XP\Vista\Win7) and Linux, or inasmuch as a stand-alone data acquisition system. For lagniappe, ADwin uninvited drivers cause rife of the popular programming environments including Visual Of the essence, Visual C\C++, LabVIEW\LabWindows, TestPoint and others.<\p>

The university's physics department benefitted on good terms several signal ways following installation referring to the ADwin-Pro Modular Rightful Time Data Receiving and Control System. Using up towards 480 analog\dentate I\O inputs and high-performance DSP processor, the ADwin-Pro system performed real-time measurements at to a degree barfy accuracy and also performed all the necessary control functions for the taste. The system's modular design unasked researchers the flexibility to configure the cards for example desired and to unify on and on hardware as needed. Additionally, ADwin's anticipatory ADbasic and ADTools software added envisaging, graphing and display looks and ensured that the whack continued uninterrupted with repeated status in relation to tack checking account. <\p>

For further prosecution on the ADwin-Pro Modular Real Freedom Data Property and Call the shots Created universe, other premise taking possession devices against ADwin, or to remark the ideal solution in lieu of your application-specific needs, contact a CAS Bug Logger Applications Two-dollar broker at [phone] or catch the website at http:\\www.DataLoggerInc.com.<\p>

Contact Conversation: CAS DataLoggers, Inc. 12628 Chillicothe Road Chesterland, Ohio 44026 [phone] [phone] [email protected] http:\\www.dataloggerinc.com <\p>