frequency standard. Commercial rubidium frequency standards operate by disciplining a crystal oscillator to the rubidium hyperfine transition of 6.8 GHz...
3 KB (264 words) - 14:43, 17 January 2024
disciplined oscillator (GPSDO), is a combination of a GPS receiver and a high-quality, stable oscillator such as a quartz or rubidium oscillator whose output...
10 KB (1,057 words) - 07:43, 3 June 2024
Rubidium is a chemical element; it has symbol Rb and atomic number 37. It is a very soft, whitish-grey solid in the alkali metal group, similar to potassium...
40 KB (4,324 words) - 14:57, 19 August 2024
Oven-controlled crystal oscillator RbXO — Rubidium crystal oscillators (RbXO), a crystal oscillator (can be an MCXO) synchronized with a built-in rubidium standard which...
89 KB (9,470 words) - 22:48, 15 August 2024
Crystal oven (redirect from Oven controlled oscillator)
standard, such as a rubidium standard, caesium standard, or hydrogen maser. Another cheaper alternative is to discipline a crystal oscillator with a GPS time...
13 KB (985 words) - 03:44, 25 May 2024
standard. Secondary standards include crystal oscillators and rubidium standards. A crystal oscillator depends for its frequency on its physical dimensions...
1 KB (139 words) - 23:31, 19 May 2020
A variable frequency oscillator (VFO) in electronics is an oscillator whose frequency can be tuned (i.e., varied) over some range. It is a necessary component...
14 KB (1,844 words) - 20:50, 16 August 2024
reference. For example, a GPS disciplined oscillator (GPSDO) usually consists of a quartz or rubidium oscillator whose output frequency is continuously steered...
19 KB (2,222 words) - 03:48, 31 July 2024
frequency reference tied to a very high stability oscillator, such as a GPS disciplined rubidium oscillator, may be used. Where the frequency does not need...
7 KB (839 words) - 14:58, 8 December 2023
Atomic clock (redirect from Atomic oscillator)
frequency of the rubidium-87 atom, 6 834 682 610.904 312 6 Hz, in terms of the caesium standard frequency. Atomic clocks based on rubidium standards are...
149 KB (15,968 words) - 07:55, 5 August 2024
proposed at the 1979 Geneva World Administrative Radio Conference. A rubidium oscillator was installed to stabilize the carrier. In 1987 three of the five...
8 KB (1,079 words) - 18:43, 19 August 2023
Rubidium chloride is the chemical compound with the formula RbCl. This alkali metal halide salt is composed of rubidium and chlorine, and finds diverse...
11 KB (845 words) - 04:32, 28 May 2024
role creating a highly accurate miniaturised atomic clock using a rubidium oscillator. Richard Schwartz (US) for leading the design and development of...
21 KB (1,160 words) - 12:57, 11 July 2024
several years of operation. A more stable design based on the vibration of rubidium atoms was demonstrated by NIST in 2019. Like other caesium atomic clocks...
8 KB (883 words) - 14:02, 19 August 2024
A frequency standard is a stable oscillator used for frequency calibration or reference. A frequency standard generates a fundamental frequency with a...
3 KB (279 words) - 18:45, 9 July 2023
An optical parametric oscillator (OPO) is a parametric oscillator that oscillates at optical frequencies. It converts an input laser wave (called "pump")...
15 KB (1,919 words) - 19:11, 26 July 2024
Laser (redirect from Optical oscillator)
laser. A laser that produces light by itself is technically an optical oscillator rather than an optical amplifier as suggested by the acronym. It has been...
114 KB (12,669 words) - 16:01, 17 August 2024
oven-controlled crystal oscillators (OCXO) in specialized units, to atomic oscillators (rubidium) in some receivers used for synchronization in telecommunications...
49 KB (3,045 words) - 11:14, 15 August 2024
invention of the laser in 1960 by Theodore Maiman. When the coherent optical oscillator was first imagined in 1957, it was originally called the "optical maser"...
19 KB (2,222 words) - 01:34, 19 April 2024
Products included hydrogen masers, rubidium and cesium atomic standards, temperature and oven controlled crystal oscillators, miniature and chip scale atomic...
3 KB (204 words) - 00:59, 10 June 2023
century, was the discovery that clocks could be controlled by harmonic oscillators. Leonardo da Vinci had produced the earliest known drawings of a pendulum...
92 KB (10,812 words) - 19:16, 16 August 2024
mechanical system is a harmonic oscillator. Laser cooling reduces the random vibrations of the mechanical oscillator, removing thermal phonons from the...
27 KB (3,002 words) - 14:33, 17 August 2024
the derivative of the comparison frequency between a cryogenic sapphire oscillator and hydrogen maser". Physical Review D. 81 (2): 022003. arXiv:0912.2803...
20 KB (2,618 words) - 10:14, 14 November 2023
}} are the annihilation and creation operators, respectively, of the oscillator representing the photon. X ϑ = 0 ∘ ≡ X {\displaystyle X_{\vartheta =0^{\circ...
46 KB (6,152 words) - 18:34, 11 March 2024
clocks. It is an aliasing effect: High frequency noise in a required local oscillator (LO) is aliased (heterodyned) to near zero frequency by a periodic interrogation...
51 KB (6,985 words) - 00:14, 17 July 2024
identical. Spacecraft experiments included a Lyman-alpha telescope, a rubidium-vapor magnetometer, electrostatic analyzers, medium-energy-range particle...
116 KB (10,931 words) - 22:40, 18 August 2024
transmitter and the receiver and thus could be used to measure oscillator drift. Later rubidium and cesium beam clocks were used. Ground stations had number...
27 KB (3,481 words) - 02:04, 21 August 2024
a state outside of the cooling cycle. The magneto-optical trapping of rubidium 85, for example, involves cycling on the closed 5 S 1 / 2 F = 3 → 5 P...
22 KB (3,162 words) - 04:35, 22 April 2024
harmonic oscillator energy. Since the atoms are not in their ground state, they will be trapped in one of the excited levels of the harmonic oscillator. The...
13 KB (1,934 words) - 00:28, 19 March 2024
frequency locked to a stable reference such as a GPS disciplined oscillator or a rubidium standard in order to support such long duration coherent detection...
39 KB (3,946 words) - 16:44, 11 June 2024