Front working gap
Insert the specimen through the 7 mm front slot. The homogeneous region is 7 mm wide, 7 mm deep and 30 mm high; its center is 17 mm behind the front-panel surface. The top slot provides a view of the specimen position.
AGEM 5521-23 - Electromagnet, DC - ~1MHz, 23 Turn
Electromagnet
Strong magnetic fields in a precisely defined test gap.
Generate magnetic fields from DC to approximately 1 MHz for experimental applications. The AGEM 5521-23 combines a 23-turn coil, a split toroidal ferromagnetic core and a built-in monitor loop in a compact aluminum housing.
Data Sheet
SPECIFICATIONS
DC–1 MHzField generation
7 × 7 × 30 mmHomogeneous field region
10 AMaximum terminal current
Product overview
A small test area with a clear reference position
Rear monitor gap
A monitor coil occupies the second 7 mm gap. Its BNC output provides a field-dependent voltage for checking the flux density in the core and working area.
Position limiter
A stop at the bottom of the working area supports the specimen. It can be removed by taking off the upper housing and undoing the retaining screw, as shown in the datasheet.
Application details
Drive and monitor the field
Lower-frequency operation
Connect a suitable generator and amplifier to the 4 mm coil terminals. The manufacturer recommends an audio amplifier at lower frequencies and requires a series protection resistor to prevent the amplifier from driving a short circuit.
Higher-frequency operation
An optional NFCN 9732-x nF compensation network reduces series impedance at a selected operating frequency. The AGEM example connects the amplifier through a protective SHUNT 9571 resistor to the network, then connects the “to coil” output directly to the electromagnet.
50 Ω monitoring
Use a measurement input terminated in 50 Ω. A high-impedance oscilloscope needs a BNC T-piece and parallel 50 Ω termination. At 100 kHz, 1000 A/m corresponds to 46.1 mV RMS, or approximately 130 mV peak-to-peak.
Connection overview
See where it fits.
01Generator / amplifier
02Series protection resistor
03Optional NFCN 9732-x nF
04AGEM 5521-23
The BNC monitor output connects separately to a 50 Ω measurement input. Compensation is selected for one operating frequency.
Technical data
AGEM 5521-23 specifications
Ratings, connectors and mechanical details consolidated from the manufacturer’s product page and Rev. A datasheet.
Read the full datasheet →| Magnetic field generation range | DC–1 MHz |
|---|---|
| Monitor-loop frequency range | Approximately 20 kHz–1 MHz |
| Coil turns | 23 |
| Coil inductance | 39 µH |
| Maximum current at terminals | 10 A |
| Coil terminals | 4 mm laboratory jacks |
| Monitor output | BNC jack; 50 Ω measurement termination required |
| Homogeneous field area (W × D × H) | 7 × 7 × 30 mm |
| Working-area center | 17 mm behind front-panel surface |
| Monitor output at 1000 A/m, 100 kHz | 46.1 mV RMS |
| Monitor output at 1000 A/m, 200 kHz | 88.7 mV |
| Monitor output at 1000 A/m, 800 kHz | 360 mV |
| Dimensions (W × H × D) | 105 × 111 × 150 mm |
| Weight | 1060 g (1.06 kg) |
The German datasheet writes the mass as “1.060 g”; it is presented here as 1060 g (1.06 kg).
Construction & application
Photos, details and test setups
Original figures extracted from the associated datasheet. Open any image to inspect the full-size figure.
Practical questions
Before you specify the product
Does the monitor coil operate down to DC?
Is the compensation network included?
Build the setup
Related products
NFCN 9732-x nFCompensation Network
Up to 1 MHz
Up to 1 MHz
Absolute EMC · North American sales
Specify the right setup.
Ask about the AGEM 5521-23, compatible accessories, and your measurement requirements.
Product inquiries for the United States, Mexico, and Canada.
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