Title:
ATOMIC RESONANT TRANSITION DEVICE, ATOMIC OSCILLATOR, ELECTRONIC APPARATUS, AND MOBILE BODY
Document Type and Number:
Japanese Patent JP2015061091
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an atomic resonant transition device and an atomic oscillator that improve long-term frequency stability by preventing or suppressing a change with time in the amount of magnetization of a shield part by a magnetic field from an exciting coil, and provide a reliable electronic apparatus and mobile body equipped with the atomic resonant transition device.SOLUTION: An atomic oscillator 1 of the present invention includes: an alkali metal; an exciting coil (coil 35) for applying a DC magnetic field to the alkali metal; a shield part shielding the alkali metal from an external magnetic field; a power supply 4 capable of simultaneously generating a direct current and an alternating current attenuated with time; and a demagnetizing coil (coil 35) supplied with the direct current and the alternating current to generate a demagnetizing field, in which a DC magnetic field component and an AC magnetic field component attenuated with time are superimposed together, for demagnetizing the shield part.
Inventors:
CHINDO KOJI
Application Number:
JP2013191452A
Publication Date:
March 30, 2015
Filing Date:
September 17, 2013
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
H03L7/26; H01S1/06
Domestic Patent References:
| JPS60117822A | 1985-06-25 | |||
| JPH02238790A | 1990-09-21 | |||
| JPH0729104A | 1995-01-31 |
Attorney, Agent or Firm:
Masaaki Kamiyanagi
Kazuaki Watanabe
Kazuaki Watanabe