USER’S MANUAL
S E M S
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1.General information
1.1. Introduction
SEMS is thought to comply the raising need to test and verify the shielding
effectiveness of shielded environment in hospitals and industries.
This system allows to measure automatically with high speed and accuracy the
attenuation value of the magnetic and electric field in shielded environments.
1.2. System description
The shielding effectiveness measurement system has a transmitter and a receiver,
both of them are provided with a pair of very small antennas, one is used to
measure the magnetic field attenuation in the 2MHz to 128MHz frequency range,
the other one is used to measure the electric field attenuation in the 60 to 300MHz
frequency range.
Contrary to today’s available systems, that measures the shield effectiveness on
few frequency points, SEMS allows to perform a complete test on the whole
frequency ranges continuously. Another improvement compared to the standard
system is the component synchronization, TX and RX are connected by a wireless
system that allows to perform automatically the measurement minimizing the user’s
errors.
Picture n°01
SEMS in the transport bag
