sensorTier A
Thermometer
Monitor stage temperature. Provides thermal diagnostics during cooldown and qubit characterisation.
What it does
Cryogenic resistance thermometer for continuous temperature monitoring during cooldown and steady-state operation. RuOx sensors are standard below 1K; Cernox or platinum RTDs used at higher stages. Connects to DC/sensor wiring — must not be mistaken for a signal endpoint on microwave lines.
Where it goes
- Allowed stages
- 50K, 4K, Still, CP, MXC, 1K
- Preferred stages
- MXC, 4K
- Typical line types
- dc
- Sensor readout should not be confused with qubit/readout microwave lines.
- 4-wire resistance measurement required below 1K for accuracy.
Typical specifications
| Sensor type | Cernox or RuOx package |
| Range | 10 mK – 100 K |
| Readout | 4-wire resistance |
Ports
- Sense+bidirectionaldc
- Sense−bidirectionaldc
Physical envelope
8.0 × 4.0 × 6.0 mm
Representative cryogenic resistance thermometer mount block with a small sensor body and twin leadouts, closer to SD-package / mounted-chip practice than the older oversized placeholder.