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Modular Characterization Systems
Lake Shore
EMP Electromagnet platform
MeasureReady™ MCS-EMP
The multi-purpose MCS-EMP electromagnet platform provides all of the essential components required for automated, variable field experiments. Each MCS-EMP builds on a 4-inch or 7-inch electromagnet with pole caps, magnet base, and pedestal. Magnets feature ExactGAP™ precision-settable sample gaps. 2-inch pole caps are standard on the 4-inch MCS‑EMP, and convertible 4-inch/2-inch caps are standard on the 7-inch MCS-EMP. Optical access is optional.
Key features
- Variable magnetic fields to over 3 T
- Low-noise 4-quadrant power supply
- Integrated teslameter for closed loop field control
- MeasureLINK™-MCS control software license and script library
Measurement options
- Fully-integrated measurement modules, e.g., Hall effect
- Measurement instrumentation
- Variable temperature
- Sample holders
Typical applications
- Electronic/electro-transport measurements
- Magnetic/magneto-transport measurements
- Specialized, customer-built measurements
Included with each MCS-EMP:
- 4” or 7” electromagnet
- Electromagnet system controller (ESC):
- High-reliability linear magnet power supply (643 or 648)
- F71 multi-axis teslameter and single-axis field-monitoring probe
- PC with installed MeasureLINK-MCS control software
- Equipment console
MCS-EMP choices:
- GlideLOCK option mount only
- Variable temperature control with GlideLOCK mount
- Optical bore
MCS-EMP Specifications (preliminary)
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APPLIED FIELD STRENGTH WITH STANDARD POLE CAPS (±1%) |
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ExactGAP™ setting |
Air gap |
EMP-4 maximum field with 4 in to 2 in pole caps |
EMP-7 maximum field with 7 in to 2 in pole caps |
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Index 1 |
7.5 mm (0.30 in) |
26.5 kOe (2.65 T) |
31.3 kOe (3.13 T) |
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Index 2 |
12 mm (0.47 in) |
24.1 kOe (2.41 T) |
29.1 kOe (2.91 T) |
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Index 3 |
20 mm (0.79 in) |
19.6 kOe (1.96 T) |
25.5 kOe (2.55 T) |
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Index 4 |
25 mm (0.98 in) |
16.9 kOe (1.69 T) |
23.4 kOe (2.34 T) |
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Index 5 |
28 mm (1.10 in) |
15.4 kOe (1.54 T) |
22.3 kOe (2.23 T) |
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Index 6 |
50 mm (1.97 in) |
9.1 kOe (0.91 T) |
15.8 kOe (1.58 T) |
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APPLIED FIELD STRENGTH WITH 2 IN POLE CAP REMOVED (±1%) |
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ExactGAP™ setting |
Air gap |
EMP-4 maximum field with 4 in bare pole |
EMP-7 maximum field with 7 in to 4 in pole cap |
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Index 1 |
57.5 mm (2.26 in) |
7.9 kOe (0.79 T) |
13.6 kOe (1.36 T) |
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Index 2 |
62 mm (2.44 in) |
7.3 kOe (0.73 T) |
12.9 kOe (1.29 T) |
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Index 3 |
70 mm (2.76 in) |
6.5 kOe (0.65 T) |
11.8 kOe (1.18 T) |
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Index 4 |
75 mm (2.95 in) |
6.1 kOe (0.61 T) |
11.1 kOe (1.11 T) |
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Index 5 |
78 mm (3.07 in) |
5.9 kOe (0.59 T) |
10.8 kOe (1.08 T) |
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Index 6 |
100 mm (3.94 in) |
4.6 kOe (0.46 T) |
8.7 kOe (0.87 T) |
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APPLIED FIELD STRENGTH WITH 4 IN and 2 IN POLE CAPS REMOVED (±1%) |
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ExactGAP™ setting |
Air gap |
— |
EMP-7 maximum field with 7 in bare pole |
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Index 1 |
146.5 mm (5.77 in) |
— |
6.1 kOe (0.61 T) |
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Index 2 |
151 mm (5.94 in) |
— |
6.0 kOe (0.60 T) |
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Index 3 |
159 mm (6.26 in) |
— |
5.7 kOe (0.57 T) |
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Index 4 |
164 mm (6.46 in) |
— |
5.5 kOe (0.55 T) |
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Index 5 |
Not recommended for this pole cap configuration |
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Index 6 |
Not recommended for this pole cap configuration |
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*ExactGap 1 or 2 maximum ramp rate = 5 kOe/s (0.5 T/s); ExactGap 3 maximum ramp rate = 4 kOe/s (0.4 T/s); ExactGap 5 maximum ramp rate = 3 kOe/s (0.3 T/s)
For other air gaps, use the optional shim kit (EMP-SHIMS-7 or EMP-SHIMS-4)
FIELD MEASUREMENT
Field accuracy: 1% of reading or ±0.05% of full scale
Field resolution: TBD
Maximum field ramp rate: EMP-4: 10,000 Oe/s; EMP-7: 10,000 Oe/s
Closed loop field control stability: TBD
SAMPLE ROTATION
Setting resolution: TBD
Setting reproducibility: TBD
Rotation range: Continuous
CERTIFICATIONS
CE: Yes
Application of Council directives: 2014/35/EU Low Voltage Directive; 2014/30/EU EMC Directive; 2011/65/EU RoHS Directive
Standard to which conformity is declared: EN61010-1: 2010 Overvoltage Category II, Pollution Degree 2; EN61326-1: 2013 Class A, Controlled EM Environment; EN55011: 2009 Class A, Controlled EM Environment EN50581: 2012
UTILITIES
Total system cooling water power dissipation (50 or 60 Hz)—contact us for available recirculating chillers
EMP-4: 4250 W
EMP-7: 13400 kW
Note: chiller power specifications listed are for 100% duty cycle. Many common applications will not require as much cooling power. Please consult Lake Shore for chiller recommendations for your specific applications.
MCS-EMP equipment
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EMP-4 |
EMP-7 |
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Electromagnet system controller |
F71 teslameter, PC and monitor, MeasureLINK™-MCS software, bipolar magnet power supply (see below); VT configuration adds Model 336 temperature controller; 483 mm (19 in) console |
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Bipolar magnet power supply |
Model 643 |
Model 648 |
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Maximum output |
±35 V/±70 A (2,450 W) |
±75 V/±135 A (9.1 kW nominal) |
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AC line input |
200/208 VAC ±10%, 13 A/phase; |
200 VAC ±5%, 41 A/phase; |
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Cooling water requirements |
Tap water or closed cooling system (optional chiller available) +15 °C to +30 °C |
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Flow rate |
5.7 L (1.5 gal)/min minimum |
7.6 L (2.0 gal)/min minimum |
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Pressure drop |
10 kPa (1.5 psi) at 5.7 L (1.5 gal)/min |
159 kPa (23 psi) at 7.6 L (2 gal)/min |
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Electromagnet |
Model EM-4V |
Model EM-7V |
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Pole diameter |
100 mm (4 in) |
180 mm (7 in) |
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Pole cap face diameter |
50 mm (2 in) |
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Field homogeniety |
±0.1% over 1 cm3 (0.4 in3) |
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Cooling water requirements |
Tap water or closed cooling system (optional chiller available) |
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Inlet temperature |
15 to 25 °C (59 to 77 °F) |
15 to 32 °C (59 to 89 °F) |
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Flow rate |
7.6 L (2 gal)/min |
11.4 L (3 gal)/min |
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Pressure drop |
200 kPa (30 psi) |
220 kPa (32 psi) |
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Water chiller capacity |
2.5 kW (8,530 BTU)/h |
5 kW (17,060 BTU)/h |
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Hall probe |
FP-2X-250-TS15 |
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For additional magnet and power supply specifications, see the EM-4V and EM-7V Electromagnets and Electromagnet Power Supplies catalog
MCS-EMP temperature options
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EMP-4 |
EMP-7 |
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Sample size |
Up to 10 mm × 10 mm × 3 mm standard, up to 50 mm diameter × 3 mm optional |
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CCR temperature |
15 K to 400 K with standard CCR, 15 K to 350 K with optical CCR |
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Oven temperature |
Room temperature to 1,273 K; at 773 K and ±1% rdg: maximum = 1 MΩ; at 1,273 K and ±1% rdg: maximum = 1 kΩ |
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