- 0086-21-58386256
- من الإثنين إلى السبت: 10:00 - 16:00 / يوم الأحد مغلق
· 1.1 The Model 1450B is a rubidium frequency stan-dard which can be disciplined to an external 1pps (one pulse per second) reference signal. This 1pps is commonly derived from primary, or other standards, such as GPS (global positioning satellite). When dis-
أكمل القراءةThe ptf 4210A Rubidium Frequency Standard is a unique solution for providing a highly stable, low phase noise, frequency reference for applications requiring atomic reference stability performance. The instrument contains a high performance rubidium module, with an extended life design, and very low aging rate, with high quality OCXO o/p for ...
أكمل القراءةRubidium Oscillators Our range of precise low noise rubidium oscillators in a variety of sizes to suit all appliations. These acurate frequency references are used in telecoms, aviation, nautical and precision test and measurement enviroments. For a technical discussion of rubidium oscillators go here or select a product range below. E10-MRO
أكمل القراءة· The RFS10F is a 10 MHz rubidium frequency standard with many options as described below. An optional input allows the RFS10F to be locked to a 1 pps signal such as GPS, or to other frequencies such as 5 or 10 MHz. Also the 1 pps output derived from the rubidium will align itself in time to the 1 pps input to within 150 ns. Options
أكمل القراءة· Optical Pumping of Rubidium Vapor Emily Wang and Kelley Rivoire ... Land´e g factor 3. Optical Pumping Setup 4. Procedure: RF sweep and varying of B~ 5. Results for value of Earth's magnetic field, Land´e g-factors 6. Conclusions. Introduction • Exploration of radio-frequency region of atomic spectra use-ful for studying details of ...
أكمل القراءة· Rubidium Frequency Standard STM-Rb SeriesRubidium Clock Stability better than 8E-12/s Super Value for Money 10MHz output 1PPS output With 1PPS taming function Digital Surveillance High Performance Rubidium Clock
أكمل القراءة· The Rubidium MG362x1A signal generator product line is built to deliver outstanding signal purity and frequency stability across a broad frequency range of 9 kHz to 43.5 GHz, even at high output power levels. The Rubidium MG362x1A provides two tiers of phase noise performance as options in addition to the standard tier. The
أكمل القراءةthe Symmetricom 8040C/8040CLN Rubidium Frequency Standard. Purpose of Equipment . The 8040C/8040CLN is a highly accurate and stable Rubidium frequency reference standard that provides atomic clock performance in a user-configurable 1 U rack-mount chassis. Each of the connectors can be individually programmed to generate any of the
أكمل القراءة· Bottom Left: Inside the 10 MHz rubidium frequency reference using the FE-5680A. On the left, mounted in the lid, is the FE-5680A and inside the box is the switching voltage converter (near the top) and the 10 MHz filter/distribution amplifier and status indicator near the …
أكمل القراءة· 1(a), (b) and (c) respectively. Over the past few years, a number of studies have been conducted on vapour gas cell frequency standards with the aim of improved frequency stability performance [3,4]. Rubidium atomic clocks find applications as fre-quency reference in telecommunications, and in space for satellite navigation systems [5-7].
أكمل القراءة· （Rubidium Frequency References） Rubidium Frequency References have long been established as one of the world's most cost effective atomic clock solutions where an independent and highly accurate frequency reference is required.
أكمل القراءة· 2) When alarm is generated, output frequency is swept is about ±10 × 10-6. External dimensions RUBIDIUM ATOMIC OSCILLATOR (Portable type Rubidium Frequency Standard) Rb - 1008 B / C / BD / CD •Features : Excellent frequency stability : Portable type Rb-1008B RUBIDIUM FREQ. STD. 10MHz 5MHz 1MHz 100kHz C-FIELD POWER POWER ON OFF …
أكمل القراءة· Specifications 3 FS725 Rubidium Frequency Standard Specifications Standard outputs W,-'!$'Z[^'P81)',*0)P6'-1)'T'Z[^'P81)',*0)6'-1)'!'KKP,8G ...
أكمل القراءة· RUBIDIUM FREQUENCY STANDARD FE-5680A OPTION SUMMARY OPTION DESCRIPTION Frequency Electronics, Inc. Sheet 7 TM0110-2 NOV 2000. PIN FUNCTION NOTES J1-1 +15V DC power input J1-2 +15V Return Provides DC return J1-3 Loop Lock Indicator Indicates whether or not the output frequency is ...
أكمل القراءةOptical clocks are emerging as next-generation timekeeping devices with technological and scientific use cases. Simplified atomic sources such as vapor cells may offer a straightforward path to field use, but suffer from long-term frequency drifts and environmental sensitivities. Here, we measure a laboratory optical clock based on warm rubidium atoms and find low levels of …
أكمل القراءةPRS10 Rubidium Frequency Standard power near the transition frequency. The crystal oscillator is stabilized to the rubidium transition by detecting the light dip while sweeping an RF frequency synthesizer (referenced to the crystal) through the transition frequency. final frequency as the unit warms up. In the case of a problem with the physics ...
أكمل القراءة· 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- …
أكمل القراءة· consist of an RF Generator, Lock-in Amplifier and the Rubidium Physics Package. Frequency locking of the VCXO is accomplished by operating the Rubidium Physics Package as a frequency discriminator, i.e., departures of a frequency derived from an input signal (50.255+ MHz from the VCXO) from a defined center frequency (Rubidium atomic
أكمل القراءة· The GPS10R/RB are 10 MHz, GPS disciplined, rubidium frequency standards. They combine the short-term stability of an atomic rubidium oscillator with the long-term stability and traceability of the Global Positioning Service (GPS) set of satellites. The GPS10R/RB achieves short and long-term frequency accuracy of parts in
أكمل القراءة· The frequency stability of the rubidium fountain is given by σ y (τ) = 1.43·10 –13 τ –1/2 at an evaluated frequency uncertainty of less than 2·10 –16. Such performances are at the level of the best rubidium fountain standards developed worldwide. These results are relevant for the time and frequency metrology and for timescales.
أكمل القراءةCombining light modulation and frequency conversion techniques, a compact and simple frequency-stabilized optical frequency comb spanning over 45 nm in the 1.56-μm wavelength region is demonstrated. It benefits from the high-frequency stability achievable from rubidium atomic transitions at 780 nm probed in a saturation absorption scheme, which is transferred to …
أكمل القراءة· CESIUM AND RUBIDIUM FREQUENCY STANDARDS STATUS AND PERFORMANCE ON THE GPS PROGRAM M. J. Vall Melle GPS NAVSTAR Operations Rockwell Space and Operation Center Falcon Air Force Base Colorado Springs, CO Abstract This paper is an update of the on-orbit operational performance of the frequency standards on
أكمل القراءة· 56 - Rubidium Frequency Standard Model 304-B. Instrument provides standard frequency outputs of 5 MHz, 1 MHz and 100 kHz, via BNC terminals mounted on the front panel. A vapour of Rubidium contained within a small …
أكمل القراءة· Rubidium 87 D Line Data Daniel A. Steck Theoretical Division (T-8), MS B285 Los Alamos National Laboratory Los Alamos, NM 87545 25 September 2001 ... line width (as an angular frequency) of the emitted radiation. The spontaneous emission rate is a measure of the relative intensity of a spectral line. Commonly, the relative
أكمل القراءة· 4 2 Rubidium 85 Physical and Optical Properties totypicallaboratoryconditions(1atmpressure,23 Ctemperature,and40%relativehumidity).Theindexof ...
أكمل القراءةRubidium Frequency Reference. Overview The Microsemi 8040C and 8040CLN provide a stable and accurate frequency reference with multiple output signal formats in an easy to install 1U rack mountable chassis. The 8040C/8040CLN delivers atomic clock performance, improved frequency, long-term stability, and configurable RF outputs, built-in GPS ...
أكمل القراءة· Key words : Cesium, frequency, primary standard, time dissemination, Allan deviations. 1. INTRODUCTION Cesium atomic clock is a primary frequency standard. Its frequency does not change with time, but due to their high costs, at the time of purchase and at the moment to change parts, a rubidium option has been developed as a cheaper alternative.
أكمل القراءة· Manufacturers of rubidium frequency standards sometimes use a crystal frequency that is an exact sub-multiple of the hyperfine transition …
أكمل القراءة