Difference between revisions of "Cryocable Impedance"
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| + | ;Generally: | ||
| + | : 30-50pF per meter (typically <2m) | ||
| + | : 265-Ohm, 190-Ohm, 110-Ohm (quoted from various experiments) | ||
| + | |||
;SCUBA-2 | ;SCUBA-2 | ||
| − | : | + | : 190-Ohm, 50-pf(?) single wire |
| + | : ssa-outputs use wires with twice the diameter => 190/4=47.5 Ohm | ||
;ACT | ;ACT | ||
| − | + | :~190 ohm | |
;Spider | ;Spider | ||
:test cryostat cryo cable: 48" + 43" long, R~90 ohms (round trip) and C~180 pF between pairs | :test cryostat cryo cable: 48" + 43" long, R~90 ohms (round trip) and C~180 pF between pairs | ||
:Flight cryostat cryo cable: 3m + 45" long, R~160 ohm (round trip) and C~350pF between pairs. | :Flight cryostat cryo cable: 3m + 45" long, R~160 ohm (round trip) and C~350pF between pairs. | ||
| + | |||
| + | ;HAWC | ||
| + | : R~146 ohm, C~350 pF for RC=51 ns | ||
| + | == == | ||
| + | back to [[Filter Box]] | ||
| + | |||
| + | [[Category:Hardware]] | ||
Latest revision as of 13:57, 30 August 2016
- Generally
- 30-50pF per meter (typically <2m)
- 265-Ohm, 190-Ohm, 110-Ohm (quoted from various experiments)
- SCUBA-2
- 190-Ohm, 50-pf(?) single wire
- ssa-outputs use wires with twice the diameter => 190/4=47.5 Ohm
- ACT
- ~190 ohm
- Spider
- test cryostat cryo cable: 48" + 43" long, R~90 ohms (round trip) and C~180 pF between pairs
- Flight cryostat cryo cable: 3m + 45" long, R~160 ohm (round trip) and C~350pF between pairs.
- HAWC
- R~146 ohm, C~350 pF for RC=51 ns
back to Filter Box
