Modular Characterization Systems
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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)

APPLIED FIELD STRENGTH WITH STANDARD POLE CAPS (±1%)

 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

Index 1

7.5 mm (0.30 in)

26.5 kOe (2.65 T)

31.3 kOe (3.13 T)

Index 2

12 mm (0.47 in)

24.1 kOe (2.41 T)

29.1 kOe (2.91 T)

Index 3

20 mm (0.79 in)

19.6 kOe (1.96 T)

25.5 kOe (2.55 T)

Index 4

25 mm (0.98 in)

16.9 kOe (1.69 T)

23.4 kOe (2.34 T)

Index 5

28 mm (1.10 in)

15.4 kOe (1.54 T)

22.3 kOe (2.23 T)

Index 6

50 mm (1.97 in)

9.1 kOe (0.91 T)

15.8 kOe (1.58 T)

 

 

 

 

APPLIED FIELD STRENGTH WITH 2 IN POLE CAP REMOVED (±1%)

 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

Index 1

57.5 mm (2.26 in)

7.9 kOe (0.79 T)

13.6 kOe (1.36 T)

Index 2

62 mm (2.44 in)

7.3 kOe (0.73 T)

12.9 kOe (1.29 T)

Index 3

70 mm (2.76 in)

6.5 kOe (0.65 T)

11.8 kOe (1.18 T)

Index 4

75 mm (2.95 in)

6.1 kOe (0.61 T)

11.1 kOe (1.11 T)

Index 5

78 mm (3.07 in)

5.9 kOe (0.59 T)

10.8 kOe (1.08 T)

Index 6

100 mm (3.94 in)

4.6 kOe (0.46 T)

8.7 kOe (0.87 T)

APPLIED FIELD STRENGTH WITH 4 IN and 2 IN POLE CAPS REMOVED (±1%)

 ExactGAP™ setting

Air gap

EMP-7 maximum field with 7 in bare pole

Index 1

146.5 mm (5.77 in)

6.1 kOe (0.61 T)

Index 2

151 mm (5.94 in)

6.0 kOe (0.60 T)

Index 3

159 mm (6.26 in)

5.7 kOe (0.57 T)

Index 4

164 mm (6.46 in)

5.5 kOe (0.55 T)

Index 5

Not recommended for this pole cap configuration

Index 6

Not recommended for this pole cap configuration

*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

 

EMP-4

EMP-7

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

Bipolar magnet power supply

Model 643

Model 648

Maximum output

±35 V/±70 A (2,450 W)

±75 V/±135 A (9.1 kW nominal)

AC line input

200/208 VAC ±10%, 13 A/phase;
220/230 VAC ±10%, 12 A/phase;
380 VAC ±10%, 7 A/phase;
400/415 VAC ±10%, 6.5 A/phase at 50/60 Hz

200 VAC ±5%, 41 A/phase;
208 VAC ±5%, 40 A/phase;
220 VAC ±5%, 38 A/phase;
230 VAC ±5%, 37 A/phase;
380 VAC ±5%, 23 A/phase;
400 VAC ±5%, 21 A/phase;
415 VAC ±5%, 21 A/phase

Cooling water requirements

Tap water or closed cooling system (optional chiller available) +15 °C to +30 °C

Flow rate

5.7 L (1.5 gal)/min minimum

7.6 L (2.0 gal)/min minimum

Pressure drop

10 kPa (1.5 psi) at 5.7 L (1.5 gal)/min
minimum for power supply only

159 kPa (23 psi) at 7.6 L (2 gal)/min
minimum for power supply and mandatory flow switch

Electromagnet

Model EM-4V

Model EM-7V

Pole diameter

100 mm (4 in)

180 mm (7 in)

Pole cap face diameter

50 mm (2 in)

Field homogeniety

±0.1% over 1 cm3 (0.4 in3)

Cooling water requirements

Tap water or closed cooling system (optional chiller available)

Inlet temperature

15 to 25 °C (59 to 77 °F)

15 to 32 °C (59 to 89 °F)

Flow rate

7.6 L (2 gal)/min

11.4 L (3 gal)/min

Pressure drop

200 kPa (30 psi)

220 kPa (32 psi)

Water chiller capacity

2.5 kW (8,530 BTU)/h

5 kW (17,060 BTU)/h

Hall probe

FP-2X-250-TS15

For additional magnet and power supply specifications, see the EM-4V and EM-7V Electromagnets and Electromagnet Power Supplies catalog



MCS-EMP temperature options

 

EMP-4

EMP-7

Sample size

Up to 10 mm × 10 mm × 3 mm standard, up to 50 mm diameter × 3 mm optional

CCR temperature

15 K to 400 K with standard CCR, 15 K to 350 K with optical CCR

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