atomic clocks

  1. Home
  2. top of the aat hierarchies
  3. Objects Facet
  4. Furnishings and Equipment (hierarchy name)
  5. Measuring Devices (hierarchy name)
  6. measuring devices (instruments)
  7. [measuring devices for extent]
  8. timepieces
  9. [timepieces by form]
  10. clocks
  11. [clocks by movement]
  12. electronic clocks
  13. atomic clocks
Scope note
Extremely accurate electronic clocks regulated by the resonance frequency of atoms or molecules, such as cesium or ammonia.
atomic clocks
Accepted term: 06-May-2024