SRS
SIM921 – AC resistance bridge
Overview
The SIM921 AC Resistance Bridge is a precision, low-noise instrument designed for cryogenic thermometry applications. With excitation power below 100 aW, thermistors and other resistive samples can be measured at temperatures below 50 mK with negligible self-heating errors.
Key Features
- Accurate millikelvin thermometry
- Microvolt/picoamp excitation
- Measurements from 1 mΩ to 100 MΩ
- Excitation from 2 Hz to 60 Hz
- Linearized analog output
- Resistance, temperature and phase
