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ECS RFI-EMI (Noise Suppression)
Noise Level Comparison Charts
Engine & Harness Capacitor Assemblies (Photo)
RFI Supression for Fuel Pump Application (Photo)
Applications:
Types Of Engine Noise Suppression
Point of problem
• Example: Capacitor or
other EMI solution on each sparkplug wire
• Costly and can only take
care of a single problem
Harness or problem area
•
Example: Capacitor assembly mounted at coil
• One mounting location, one
part, can resolve multiple noise problems, economical
Types Of Noise
Suppression Applications
Elimination of electrical noise that causes Radio
Interference
• Example:
Popping or static on certain radio bands
Elimination of electrical
noise that causes/interferes with sensors
• Example:
Crank sensor interference that results in a delayed start
Types Of Noise
Suppression Circuits
Noise filter that is not current
carrying – attached
to one side and grounded
• Example: Majority of current
engine capacitor assemblies
Noise Filter that carries current – ignition circuit & 3rd
brake light
• Example: Most of this
type is utilized by Jaguar/Land Rover
ECS Capabilities
• Computer Aided Design
(CAD) utilizing state of the art hardware and CAD software, for mechanical,
magnetic
FEA and PC Board design.
• Rapid Prototyping via
Stereo Lithography utilizing SLA format output from CAD software. Sizes
up to 10 cubic inches.
• Computerized electromechanical
dynamometer testing.
• Vibration endurance
testing.
• Environmental testing (-100°F to 359°F)
with and without humidity controls.
• Thermal Shock testing (-73°C with or without
LN2 to 177°C).
• State of the art RFI/EMI
testing equipment including full size mode stir shielded test room.
• In-House
D.V. and P.V. testing for most new and existing products
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