MIL-STD-461 RS105

RS105 is a test standard under the radiated susceptibility subcategory of MIL-STD-461. in relation to a transient electromagnetic field or electromagnetic pulse (EMP). This standard applies to Army aircraft for safety-critical equipment and subsystems located externally to a non-metallic shielded platform or facility.

Under the test standard of MIL-STD-461 RS105, the equipment under test (EUT) is exposed to an EMP waveform and must not show any signs of performance degradation, malfunction, or deviation from specified indications above the equipment's specific tolerances. For proper standard testing, the EUT must be exposed to at least five pulses of no more than one pulse per minute.

MIL-STD-461 RS105 covers different variations of EMP. The first being, nuclear electromagnetic pulse (NEMP), which are magnetic fields caused by nuclear explosions. High altitude nuclear electromagnetic pulses (HEMP) is a particular test that needs to be performed at a higher amplitude for applications such as aircraft subsystem and component development. Lastly, there are non-nuclear electromagnetic pulses (NNEMP) that apply to manmade (through technology) EMPs.

Test equipment needed for RS105 requirements:

• Transverse electromagnetic (TEM) cell, parallel plate transmission line, or equivalent
• Transient pulse generator, monopulse output, plus and minus polarity
• Storage oscilloscope, 700 MHz, single-shot bandwidth (minimum), variable sampling rate up to 1 Giga sample per second (GSa/s)
• Terminal protection devices e. High-voltage probe, 1 GHz bandwidth (minimum)
• B-dot sensor probe
• D-dot sensor probe
• LISNs
• Integrator, time constant ten times the overall pulse width

Avalon Test Equipment carries test equipment available to rent that meets RS105 standards and other MIL-STD-461 test standards so you can Test With Confidence®.