CRYOGENIC TEMPERATURE SENSORS - Cryogenic Hall Generators and Probes - Technical Specifications

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Cryogenic Hall Generators and Probes

Cryogenic Gaussmeter Probes

Model	L	D	A	Active area	Stem material	Frequency range	Usable full scale ranges	Corrected accuracy (% of reading)	Operating temperature range	Temperature coefficient (maximum) Zero	Temperature coefficient (maximum) Calibration
Axial MCA-2560-WN	60 in ±0.50 in	0.25 in dia ±0.006 in	0.025 in ±0.005 in	0.030 in dia (approx)	Stainless steel	DC	300 G, 3 kG , 30 kG, 300 kG	±2% to 100 kG	1.5 K to 350 K	±0.13 G/°C	±0.010%/ °C
Transverse MCT-3160-WN	61 in ±1 in	0.25 in dia ±0.010 in	0.210 in ±0.050 in	0.040 in dia (approx)	Stainless steel	DC and 10 Hz to 400 Hz	300 G, 3 kG , 30 kG, 300 kG	±2% to 100 kG	1.5 K to 350 K	±0.13 G/°C	±0.010%/ °C

Cryogenic	HGCA-3020	HGCT-3020
Description	Cryogenic axial; phenolic package	Cryogenic transverse; ceramic package
Active area (approximate)	0.030 in (0.762) diameter	0.040 in (1.016 mm) diameter
Input resistance (approximate)	1 W	1 W
Output resistance (approximate)	1 W	1 W
Normal control current (l_CN)	100 mA	100 mA
Maximum continuous current (non-heat sunk)	300 mA	300 mA
Magnetic sensitivity at l_CN	0.55 mV/kGto 1.05 mV/kG	0.55 mV/kG to to 1.05 mV/kG
Magnetic sensitivity change with temperature	+0.7% at 200 K; +0.8% at 100 K; +1.0% at 3.8 K	+0.7% at 200 K; +0.8% at 100 K; +1.0% at 3.8 K
Maximum linearity error (sensitivity vs field)	±1.0% RDG (-30 kG to +30 kG) ±2.0% RDG (-150 kG to +150 kG)	±1.0% RDG (-30 to +30 kG) ±2.0% RDG (-150 to +150 kG)
Zero field offset voltage (maximum) (l_c= nominal control current)	±200 µV	±200 µV
Operating temperature range	1.5 K to 375 K	1.5 K to 375 K
Mean temperature coefficient of magnetic sensitivity (approximate)	±0.01%/K	-0.01%/K
Mean temperature coefficient of offset (maximum) (l_c= nominal control current)	±0.4 µV/K	±0.4 µV/K
Mean temperature coefficient of resistance (maximum)	±0.6%/K	±0.6%/K
Leads	34 AWG copper with Teflon^® insulation	34 AWG copper with Teflon^® insulation
Data	Room temperature, 30 kG data supplied	Room temperature, 30 kG data supplied

Gaussmeters

Lake Shore gaussmeters offer a straightforward and cost effective solution to measure magnetic fields. Hall generators or factory calibrated probes connect to the gaussmeter rear panel and the sensor data is automatically uploaded into the instrument. Lake Shore gaussmeters offer easy-to-make flux density measurements with high accuracy, resolution, and stability, and are available with RS-232C and IEEE interfaces, analog outputs, relays, and alarms.

Model 475 Gaussmeter – The industry’s first commercial digital signal processor (DSP) based Hall effect gaussmeter

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