- Active vibration damping (active vibration control)
- Battery
- Burn-in
- CT Scanner
- Cable Testing
- Capacitor testing
- Current sensor test
- DC-DC converter
- Dielectric Barrier Discharge (DBD)
- Dielectric Breakdown Testing
- Dielectric material
- Dielectric withstand test
- Electric Llight Source (Lamp, Artificial Light)
- Electric Vehicle (EV)
- Electrodialysis (ED)
- Electron Beam
- Electron Beam (E-Beam) Evaporation
- Electron Beam (E-Beam) Welding
- Electron Beam Lithography (EBL)
- Electron Microscope
- Electron Multiplier (EM)
- Electronic Control Unit (ECU)
- Electrophotography (xerography)
- Electrospinning (formation of ultra-fine polymer fibers)
- Electrospray
- Electrostatic Deflection
- Electrostatic Discharge (ESD) Testing
- Electrostatic chuck (E-Chuck, ESC)
- Electrostatic precipitator (ESP)
- Elemental Analyzer
- Engine Control Unit (ECU)
- Flat Panel Detector (FPD)
- Geiger counter (Geiger-Müller tube)
- High Voltage Amplifier
- High Voltage Power Supply
- Insulation breakdown test
- Inverter (Power inverter)
- Ion Beam
- Ion Implantation
- Ion Milling
- Ion Pump
- Ionization Chamber
- Ionizer
- Klystron
- Li-Ion battery (LIB)
- Light Amplification by Stimulated Emission of Radiation (LASER)
- Magnetic resonance imaging (MRI)
- Magnetron
- Marx Generators
- Motor
- Nondestructive Testing (NDT)
- Nuclear fusion
- Photodetector (PD)
- Photomultiplier Tube (PMT)
- Photovoltaics (PV)
- Plating
- Power Amplifier
- Power Feeding Equipment (PFE)
- RF amplifier
- Scanning Electron Microscope (SEM)
- Semiconductor Fabrication Equipment
- Solar Inverter (PV Inverter)
- Sputtering
- Thickness Gauging
- Traveling Wave Tube (TWT)
- Vacuum Gauge
- Vacuum Plasma Treatment
- X-Ray Analysis
- X-Ray Photoelectron Spectroscopy (XPS)
- X-Ray source/X-Ray tube