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GB1334222A - Frequency standard apparatus - Google Patents

Frequency standard apparatus

Info

Publication number
GB1334222A
GB1334222A GB1334222DA GB1334222A GB 1334222 A GB1334222 A GB 1334222A GB 1334222D A GB1334222D A GB 1334222DA GB 1334222 A GB1334222 A GB 1334222A
Authority
GB
United Kingdom
Prior art keywords
cell
frequency
frequency standard
intensity
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Plessey Co Ltd filed Critical Plessey Co Ltd
Publication of GB1334222A publication Critical patent/GB1334222A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/26—Automatic control of frequency or phase; Synchronisation using energy levels of molecules, atoms, or subatomic particles as a frequency reference

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

1334222 Gas-cell atomic frequency standards PLESSEY CO Ltd 28 Aug 1970 [31 May 1969] 27675/69 Heading G6P In a gas-cell frequency standard, the heating of the cell and the intensity of the incident light are matched so as to maintain the cell at the zero gradient range of the frequency-temperature characteristic. The cell temperature is measured by a temperature sensitive resistor, in contact with the glass envelope, which controls the cell heating system. The intensity of the incident light is adjusted by filters.
GB1334222D 1969-05-31 1969-05-31 Frequency standard apparatus Expired GB1334222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2767569 1969-05-31

Publications (1)

Publication Number Publication Date
GB1334222A true GB1334222A (en) 1973-10-17

Family

ID=10263454

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1334222D Expired GB1334222A (en) 1969-05-31 1969-05-31 Frequency standard apparatus

Country Status (1)

Country Link
GB (1) GB1334222A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4462006A (en) * 1981-07-20 1984-07-24 Rockwell International Corporation Method for stabilizing the resonance frequency of a rubidium frequency standard
CN114383739A (en) * 2022-01-19 2022-04-22 深港产学研基地（北京大学香港科技大学深圳研修院） A high-precision laser measuring device and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4462006A (en) * 1981-07-20 1984-07-24 Rockwell International Corporation Method for stabilizing the resonance frequency of a rubidium frequency standard
CN114383739A (en) * 2022-01-19 2022-04-22 深港产学研基地（北京大学香港科技大学深圳研修院） A high-precision laser measuring device and method
CN114383739B (en) * 2022-01-19 2024-09-10 深港产学研基地（北京大学香港科技大学深圳研修院） A high-precision laser wavelength measurement device and method

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees