About Us

MINEVIK Machinery is a leading and pioneering enterprise with the most advanced international level in R&D, manufacturing and selling of large-scale crushing & screening plants and beneficiation plants.

large-scale crushing & screening plants and beneficiation plants.

All of our equipment have got ISO international quality system certification, European Union CE certification and Russian GOST certification.

  • In central China-Zhengzhou, covering 140 thousand square meters
  • Win-win cooperation and create more value to customers
  • Exported large quantities and high-end mobile crushing plant and milling equipments to Russia, Kazakhstan, Indonesia, Ecuador, South Africa, Nigeria, Turkey more than 100 countries .

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Our Products

AS a leading global manufacturer of crushing and milling equipment, we offer including quarry, aggregate, grinding production and complete stone crushing plant. We also supply individual crushers and mills as well as spare parts of them.

Services

Our goal is to guarantee the excellent operation equipment with high safety for our customers and minimize the downtime of the machine by predictive maintenance. Kefid service and original accessories can be 100% trusted at the time of maintenance.

SERVICE AND SUPPORT

Minevik service and original accessories can be 100% trusted at the time of maintenance.

ACCESSORIES CENTER

striving to enable customers to get the parts in the nearest place.

SALES MARKET

Our sales market is spread all over more than 100 countries and regions

rubidium atomic results

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Rubidium Wikipedia

Rubidium cannot be stored under atmospheric oxygen as a highly exothermic reaction will ensue, sometimes even resulting in the metal catching fire. Rubidium is the first alkali metal in the group to have a density higher than water, so it sinks unlike the metals above it in the group. Rubidium has a standard atomic weight of 85.4678.

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Long Term Experimental Results of a Rubidium Atomic NIST

Long Term Experimental Results of a Rubidium Atomic Clock with Drift Compensation L. Trigo, D. Slomovitz UTE- Laboratory, Montevideo, Uruguay, [email protected] Abstract: This paper presents the results of two years of operation of an automatic system that compensates drifts of a rubidium atomic clock. This clock is the base of the

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Coherent optical transients observed in rubidium atomic

We report the first successful results from our novel Rubidium Atomic Line Filtered (RALF) Doppler velocimetry apparatus, along with unanticipated oscillatory signals due to coherent optical transients generated within pure Rb vapor cells. RALF is a high-velocity and high-acceleration extension of

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Rubidium Atomic Clock Test

Jun 13, 2014· Testing a SpectraTime LPFRS-01 LPRO rubidium standard (atomic clock.)

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Stability Test Results for GPS Rubidium Clocks

The results of this analysis are illustrated inFigure 8 This random walk coefficient has a respectable value for a space-qualified Rb atomic clock, as indicated by the data shown in Table I. [ 10

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OPTICAL PUMPING OF RUBIDIUM VAPOR Carnegie Mellon

states of neutral rubidium atoms in a weak magnetic field and to determine from the data the Landé g-factors for these states. The results will be compared with theoretical predictions based on the quantum theory of atomic structure and the addition of angular momenta. Alternatively, a value of e/m can be deduced from the data. Several time-

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RUBIDIUM CLOCK FOR PRECISION TIME TRANSPORT E.

The comnercial rubidium standard features temperature compensation using current addition into the internal magnetic field current supply. This additional current is controlled by a temperature sensor, i.e., the atomic frequency is changed magnetically to compensate for tempera- ture induced frequency shifts.

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Modulation transfer spectroscopy in atomic rubidium arXiv

Modulation transfer spectroscopy in atomic rubidium 3 the beam powers are approximately equal. The underlying principle of modulation transfer spectroscopy is as follows. An intense, single frequency pump beam is passed through an EOM, driven by an oscillator at frequency ! m. The transmitted phase-

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GPS IIR RUBIDIUM CLOCKS: IN-ORBIT PERFORMANCE ASPECTS

the earlier blocks of GPS satellites, which had a mixture of cesium- and rubidium-based clocks of various designs. The design of the RAFS was a new design for space deployment. Although initially there were concerns about this design, the results have been so successful that these clocks have become a

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Optical pumping of Rubidium High Energy Physics

Optical pumping of Rubidium Dr. Johannes Recht and Dr. Werner Kiein Optical pumping is a process used in high frequency spectroscopy which was developed by A. Kastler. It allows the spectroscopy of atomic energy states in an energy region which is not accessible by means of direct, optical observation. Kastler was awarded the Nobel Prize

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Rubidium | chemical element | Britannica

Apr 12, 2019· Rubidium: Rubidium (Rb), chemical element of Group 1 (Ia) in the periodic table, the alkali metal group. Rubidium is the second most reactive metal and is very soft, with a silvery-white lustre. Rubidium was discovered (1861) spectroscopically by German scientists Robert Bunsen and Gustav Kirchhoff and named

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OPTICAL PUMPING OF RUBIDIUM VAPOR Carnegie

states of neutral rubidium atoms in a weak magnetic field and to determine from the data the Landé g-factors for these states. The results will be compared with theoretical predictions based on the quantum theory of atomic structure and the addition of angular momenta. Alternatively, a value of e/m can be deduced from the data. Several time-

More
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SPACE-CLASS RUBIDIUM ATOMIC FREQUENCY STANDARD

than achieving the ultimate performance from the Rb atomic system. The goal of this current development, on the other hand, is to provide the best possible frequency and time stability from a passive rubidium atomic frequency standard capable of operating in space for at least 20 years. This results in a different design emphasis.

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Rubidium Frequency Standard for the GPS IIF Program and

improvements made, and the test results obtained. It also discusses the recent redesign activities to eliminate obsolete parts in the RFS-IIF as well as improvements and updates to the PerkinElmer test facility funded by the USAF GPS Wing (GPSW) under the Rubidium Atomic Frequency Standard Modification (RAFSMOD) Program. Introduction

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Coherent optical transients observed in rubidium atomic

We report the first successful results from our novel Rubidium Atomic Line Filtered (RALF) Doppler velocimetry apparatus, along with unanticipated oscillatory signals due to coherent optical transients generated within pure Rb vapor cells. RALF is a high-velocity and high-acceleration extension of

More
[randpic]

RUBIDIUM CLOCK FOR PRECISION TIME TRANSPORT E.

The comnercial rubidium standard features temperature compensation using current addition into the internal magnetic field current supply. This additional current is controlled by a temperature sensor, i.e., the atomic frequency is changed magnetically to compensate for tempera- ture induced frequency shifts.

More
[randpic]

Rubidium Wikipedia

Rubidium is a chemical element with the symbol Rb and atomic number 37. Rubidium is a very soft, silvery-white metal in the alkali metal group. Rubidium metal shares similarities to potassium metal and cesium metal in physical appearance, softness and conductivity.Rubidium cannot be stored under atmospheric oxygen, as a highly exothermic reaction will ensue, sometimes even resulting in the

More
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Solid-state ensemble of highly entangled photon sources at

May 26, 2017· This efficient and coherent pumping mechanism results in a pure spectrum featuring primarily the XX–X cascade. Solid-state ensemble of highly entangled photon sources at rubidium atomic

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A SPACE RUBIDIUM PULSED OPTICAL PUMPED CLOCK

Traditional Optically Pumped Atomic Clocks are based on the physical principle of the double resonance. The atoms of a gas (typically cesium or rubidium) confined in a cell inside a microwave cavity are excited by an optical radiation generated by a lamp or a laser (optical pumping). The pumping inverts the atomic

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Atomic clock performance and combined clock error

May 01, 2019· Current navigation systems usually contain many types of atomic clocks, for example, the new generation of BeiDou satellites employs new rubidium atomic clocks and passive hydrogen atomic clocks. For the same type of satellite clock, there is one prediction model that is most suitable for guaranteeing the highest prediction accuracy.

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Absorption spectroscopy of rubidium gas

Absorption spectroscopy of rubidium gas Will Weigand, 1Adam Egbert, and Hannah Sadler University of San Diego (Dated: 21 November 2015) High resolution laser spectroscopy is used to probe the energy level make up in a rubidium gas.

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Atomic transitions of Rb, D2 line in strong magnetic

Jan 01, 2015· Let us compare the experimental results presented in Fig. 3 obtained for B=6850 However, since for natural rubidium the atomic density ratio N(85 Rb)/N(87 Rb)≈2.6, the peak absorption of the atomic transitions for 85 Rb is nearly 1.5 times larger than that for 87 Rb . Download high-res image (142KB)

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RB Optical Pumping in Rubidium Department of Physics

Rubidium reacts violently with water and can irritate your skin or or burn your eyes • The nozzle of the heat gun used to warm the rubidium vapour cell can get extremely hot, so be careful not to touch it or to place the heat gun on any flammable material, e.g. paper. • The rubidium

More
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Atomic clock performance and combined clock error

May 01, 2019· Current navigation systems usually contain many types of atomic clocks, for example, the new generation of BeiDou satellites employs new rubidium atomic clocks and passive hydrogen atomic clocks. For the same type of satellite clock, there is one prediction model that is most suitable for guaranteeing the highest prediction accuracy.

More
[randpic]

Absorption spectroscopy of rubidium gas

Absorption spectroscopy of rubidium gas Will Weigand, 1Adam Egbert, and Hannah Sadler University of San Diego (Dated: 21 November 2015) High resolution laser spectroscopy is used to probe the energy level make up in a rubidium gas.

More
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Global Rubidium Atomic Clock Market Research Report

Jan 31, 2019· Jan 31, 2019 (WiredRelease via COMTEX) -- The latest Rubidium Atomic Clock research report published by Market.Biz on Global Rubidium Atomic Clock Market is a well-defined and in-depth research of

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DFB laser diode pumped Rubidium atomic frequency standard

We present our recently experimental results on a DFB laser diode pumped Rubidium atomic frequency standard. Our experiment was based on a homemade lamp-pumped Rubidium frequency standard with the

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rubidium atomic | eBay

6 results for rubidium atomic Save rubidium atomic to get e-mail alerts and updates on your eBay Feed. Unfollow rubidium atomic to stop getting updates on your eBay feed.

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Stability Test Results for GPS Rubidium Clocks

The results of this analysis are illustrated inFigure 8 This random walk coefficient has a respectable value for a space-qualified Rb atomic clock, as indicated by the data shown in Table I. [ 10

More
[randpic]

Atomic transitions of Rb, D2 line in strong magnetic

Jan 01, 2015· Let us compare the experimental results presented in Fig. 3 obtained for B=6850 However, since for natural rubidium the atomic density ratio N(85 Rb)/N(87 Rb)≈2.6, the peak absorption of the atomic transitions for 85 Rb is nearly 1.5 times larger than that for 87 Rb . Download high-res image (142KB)

More
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Optical Pumping of Rubidium Vapor MIT

Optical Pumping of Rubidium Vapor Emily P. Wang MIT Department of Physics ergy that powers this atomic pump. The motivation for Shown are the results of optical pumping and the subsequent application of a radio-frequency signal that destroys the pumped state.

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www.wriley

atomic clocks, in particular the capabilities of small, low- power, rubidium vapor-cell clocks. How the vapor-cell clock came to play such an important role in modern timekeeping is a story that goes back half a century, and one that high- lights the close interplay between basic science and techno- logical innovation. The vapor-cell atomic clock

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RB Optical Pumping in Rubidium Department of Physics

Rubidium reacts violently with water and can irritate your skin or or burn your eyes • The nozzle of the heat gun used to warm the rubidium vapour cell can get extremely hot, so be careful not to touch it or to place the heat gun on any flammable material, e.g. paper. • The rubidium

More
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OPTICAL PUMPING OF RUBIDIUM VAPOR USNA

neutral rubidium atoms in a weak magnetic field and to determine from the data the Landé g-factors for these states. The results will be compared with theoretical predictions based on the quantum theory of atomic structure and the addition of angular momenta. In addition, a value of

More
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Miniature Atomic Clock (MAC SA.3Xm) | Microsemi

Overview Rubidium Miniature Atomic Clock (MAC SA.3Xm) features compact design and low power consumption Cost effective, and easily adaptable to a wide variety of timing and synchronization applications, Microsemi's SA.3Xm is the world's first commercially available atomic clock.

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GPS BLOCK IIR RUBIDIUM ATOMIC FREQUENCY STANDARD

The rubidium clocks in the GPS Block ZIR spacecrafl have no prmious flight experience, and will be the only atomic clocks used on the Block IIR satellites. The US. Naval Research Laboratory (NRL),) in cooperation with the Global Positioning System Joint Program OfJice (GPS-JPO), the GPS control Segment, Lockheed Martin, In, and

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Measuring the Hyperfine Levels of Rubidium Using Saturated

2. Saturated Absorption Spectroscopy: Theory 2.1 Doppler Broadening The atoms in the rubidium cell constitute a gas at room temperature, and thus they are undergoing random thermal motion. If the laser is propagating along the z-axis, and the velocity of the atom has a nonzero component in the z-direction, then the frequency of the radiation

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