HARDWARE / PRODUCTAdded 23 Aug 2026

CryoMag®

Bartington Instruments
CryoMag®

CryoMag three-axis fluxgate magnetometers are designed for operation at temperatures as low as 2K, making them ideal for use in cryostats for superconducting radio frequency (SRF) cavities, quantum computing, and other ultra-low temperature environments.

Technical specifications

Operating temperature
down to 2K
Noise level
<20pTrms/√Hz at 1 Hz
Frequency response
DC to 1 kHz
Measuring ranges
±70, ±100, ±250 and ±500μT
Number of axes
Three
Analogue outputs
±10 V single-ended
Full Scale Measuring Ranges
±70µT, ±100µT, ±250µT, ±500µT
Scaling calibration error
<0.5%
Linearity error
0.0015% (least squares fit)
Bandwidth (-3dB)
>2 kHz (-11 dB/octave roll-off)
Perming (magnetisation hysteresis)
<2nT at 1x Full-scale, when powered
Orthogonality error between axes
<±0.1°
Excitation breakthrough
<5 mV pk-pk at 15.625 kHz typical
Start-up time
<100 ms
Warm-up time
15 minutes to meet specifications for scaling
Storage temperature range
-40 to +60°C
Vacuum
10e-6 mBar
IP Rating
IP40
Humidity - electronics
Up to 90% RH, non-condensing
Probe Dimensions
21 mm Diameter x 50 mm Long
Dimensions – Electronics Enclosure
25.4 mm Diameter x 220 mm Long
Weight
320 g typical

About

CryoMag three-axis fluxgate magnetometers are perfect for operation at temperatures as low as 2K, making them the ideal choice for use in cryostats for superconducting radio frequency (SRF) cavities, quantum computing, and other ultra-low temperature environments. These fluxgate magnetometers are available with a standard single probe or multiple sensor heads, all offering high precision measurement of static and alternating magnetic fields. Key features include an operating temperature down to 2K, noise level down to <20pTrms/√Hz at 1Hz, and a frequency response from DC to 1kHz. They offer measuring ranges of ±70, ±100, ±250 and ±500μT, and are available as a 3-axis probe or with 3 single-axis sensor heads (CryoMag-IE). Applications include magnetic field monitoring in cryostats and other low temperature environments, as well as use as feedback sensors in active magnetic field cancellation systems.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: www.bartington.com ↗

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