Electromagnetic wave shielding performance
"EMSpanel" is the shielding material used in "EMSbox"is also used in pacemaker protective clothing, and its major features are that it is only 0.7 mm thick (5-layer type) and lightweight, despite its extremely high magnetic field shielding performance. Conventionally, to achieve this level of magnetic field shielding performance, the thickness and mass of the magnetic material was required, making it unsuitable for equipment or wear. Also, when constructing a room with shielding, there were cases where construction was not possible due to construction weight restrictions.
Its original purpose was to protect pacemaker wearers from magnetic fields, but because it is easy to process, it has come to be widely used in university and corporate laboratories.※EMSpanel is also sold separately.
Electromagnetic Shielding Materials
For low frequency magnetic field protectionEMSpanel
Reflecting and diverting low-frequency magnetic fields
It is recommended as a low-frequency magnetic field shield that blocks static magnetic fields and high-frequency electromagnetic waves of several tens of GHz. Use it as an interior panel when you need electromagnetic shielding over a wide range.
▲ Enlarged cross-sectional view (magnification: 8x)
There are two types available: a five-layer type (0.7mm thick) consisting of three layers of aluminum film and two layers of high-permeability magnetic material sheets, and a three-layer type (0.3mm thick) consisting of two layers of aluminum and one layer of magnetic material sheet.
EMSbox shield data
| Simple measurement of MS box shielding performance | |
|---|---|
| Exam Date | March 4, 2024 |
| Measurement location | Medical Aid Corporation |
| ELT-400Measurement setup | MODE：320μT Detection：RMS LOWcut：10Hz Range：LOW |
| Device under test | AC adapter (measurement distance 1.0 cm) IH cooker (measurement distance 0.5cm) |
| Device under test | Measurement environment | ELT-400 Measurements(μT) |
oscilloscope | |
| Vp-p(mV) | FET maximum(dBV) | |||
| Induction Cooker | air | 23.79 | 800 | -4.063 |
| 23.74 | 840 | -4.531 | ||
| average | 23.765 | 820 | -4.297 | |
| Inside the box | 0.425 | 14.1 | -40.938 | |
| 0.429 | 15.3 | -40.859 | ||
| average | 0.427 | 14.7 | -40.8985 | |
| Shielding performance(dB) | 34.91019887 | 34.92993 | 36.6015 | |
| AC adapter | air | 11.77 | 615 | -14.531 |
| 11.73 | 615 | -14.531 | ||
| average | 11.75 | 615 | -14.531 | |
| Inside the box | 0.612 | 16.3 | -46.859 | |
| 0.61 | 16.9 | -46.938 | ||
| average | 0.611 | 16.6 | -46.8985 | |
| Shielding performance(dB) | 25.67993313 | 31.375341 | 32.3675 | |
| Low Frequency Magnetic Field 50Hz ～ 400kHz | |
|---|---|
| Exam Date | October 12, 2016 |
| Tested Products | Shielding box（EMSpanelspecification） External dimensions：W45ｘD45ｘH44cm |
| Measuring Equipment |
|
| How to Measure | A measuring device (ELT-400 manufactured by NardaS.T.S.) was placed inside the shielded box, and the electromagnetic waves irradiated from outside the box were measured using an oscilloscope connected to the measuring device, and calculations were performed using three-axis calculations. |
| Measurement results |
|
| High frequency electric field 1MHz ～ 1000MHz | |
|---|---|
| Exam Date | October 12, 2016 |
| Tested Products | Shielding box（EMSpanel Specifications） External dimensions：W45ｘD45ｘH44cm |
| Measuring Equipment |
|
| How to Measure | A measuring device (NardaS.T.S. NBM-520) was placed inside the shielded box, and the electromagnetic waves irradiated from outside the box were recorded and calculated on a PC connected to the measuring device using analysis software specifically for the NardaS.T.S. NBM-520. |
| Measurement results |
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