Kebo ya SC Word Clock

Wakati jitter ya femtosekunde bado ilikuwa jitter nyingi sana.

$38,000/m
Kebo ya SC Word Clock

Vipengele Muhimu

  • True zero DC resistance eliminates all resistive jitter contribution
  • Meissner effect expels all magnetic interference from the clock signal path
  • Cryo-locked impedance: 77K is a thermodynamic constant — impedance cannot drift
  • Cooper pair transport ensures zero-loss clock edge propagation
  • Sub-0.01ps jitter contribution (below measurement instrument noise floor)
  • Cryo-rated rhodium-plated BNC connectors
  • Annual LN2 subscription available ($310/m/year)

Vipimo

Kondakta YBCO (Yttrium Barium Copper Oxide) ceramic
Upinzani wa DC 0.000000 Ω (below Tc)
Impedansi 75Ω ±0.000% (cryo-locked)
Mchango wa Jitter < 0.01 ps (instrument floor)
Joto Muhimu (Tc) 92K (−181°C)
Joto la Uendeshaji 77K (−196°C) — liquid nitrogen
Kraiostati Vacuum-jacketed, dual-wall borosilicate
Kinga ya Sumaku Meissner effect (complete flux expulsion)
Matumizi ya LN2 ~310 liters/year per meter
Kiunganishi BNC (cryo-rated, rhodium-plated)
Bandwidth DC–500MHz
Kipenyo cha Nje 34mm (including cryostat)
Uzito 2.4 kg/m (dry), 3.1 kg/m (filled)

Kebla ya SC Word Clock haina upinzani. Supakondakta ya YBCO kwenye Kelvin 77 inabeba ishara za saa kama jozi za Cooper. Impedansi imefungwa kwa ohm 75 haswa. Athari ya Meissner inafukuza fluks yote ya sumaku. Jita chini ya pikosekunde 0.01 — sakafu ya kelele ya vyombo.

Maelezo ya Kina

  • * Requires liquid nitrogen supply. Jitter specification limited by measurement instrumentation, not by cable. Results in non-equatorial environments may vary.