impedance
Electrical flow hindrance
Impedance is opposition to the flow of alternating current in an electrical circuit, measured in ohms.
It combines resistance with reactance from capacitors and inductors.
The term extends to any system where flow meets opposition: acoustic impedance, mechanical impedance.
In audio, impedance matching ensures efficient signal transfer between components: Check that your headphone impedance matches your amplifier.
Electrical resistance measure
- resistanceCapacity to withstand force
- capacitanceElectrical charge storage measure
- inductanceElectromagnetic inertia of circuits
- reactanceOpposition to alternating current
admittance · AC · frequency · transformer · resistor · capacitor · inductor · voltage
Audible wave phenomenon
- waveOscillating motion through medium
- absorptionProcess of taking in
- reflectionReturned light or thought
- transmissionSending of information
attenuation · resonance · reverberation · diffusion · interference · medium · density · propagation
Audio output devices
- headphonesWearable speakers for ears
- amplifierSignal-strengthening electronic device
- dampingDissipation of vibrational energy
- ohmElectrical resistance measure
driver · woofer · tweeter · crossover · nominal · sensitivity · output · input
Combined electrical measuring device
- ohmmeterInstrument measuring electrical resistance
- oscilloscopeVoltage waveform display device
- probeThorough examination or tool
- calibrationAdjusting for measurement accuracy
precision · accuracy · electrode · phase · amplitude · signal · test · conductivity
Tissue's opposition to current
- electrodeConductive interface point
- tissueDisposable soft paper
- skinBody's outer layer
- conductivityAbility to carry current
resistance · frequency · measurement · diagnostic · monitoring · hydration
Something blocking the way
- barrierObstruction preventing passage
- hindranceBarrier to progress
- obstructionSomething blocking the way
- resistanceCapacity to withstand force
opposition · difficulty · friction · blockage · bottleneck · hurdle · stumbling-block · setback
ohm
Electrical resistance measure
- resistanceCapacity to withstand force
- capacitanceElectrical charge storage measure
- inductanceElectromagnetic inertia of circuits
reactance · admittance · AC · frequency · transformer · resistor · capacitor · inductor · voltage · current
sound
Audible wave phenomenon
- waveOscillating motion through medium
- absorptionProcess of taking in
- reflectionReturned light or thought
transmission · attenuation · resonance · reverberation · diffusion · interference · medium · density · propagation · echo
speakers
Audio output devices
- headphonesWearable speakers for ears
- amplifierSignal-strengthening electronic device
- dampingDissipation of vibrational energy
ohm · driver · woofer · tweeter · crossover · nominal · sensitivity · output · input · mismatch
multimeter
Combined electrical measuring device
- ohmmeterInstrument measuring electrical resistance
- oscilloscopeVoltage waveform display device
- probeThorough examination or tool
calibration · precision · accuracy · electrode · phase · amplitude · signal · test · conductivity · spectroscopy
bioimpedance
Tissue's opposition to current
conductivity · resistance · frequency · measurement · diagnostic · monitoring · hydration
obstacle
Something blocking the way
- barrierObstruction preventing passage
- hindranceBarrier to progress
- obstructionSomething blocking the way
resistance · opposition · difficulty · friction · blockage · bottleneck · hurdle · stumbling-block · setback · encumbrance
- physicsphysics, momentum, atom, acceleration, gravity
- electricityelectricity, battery, batteries, wire, wires
- engineeringengineers, civil engineering, engineering, electrical engineering, blueprint
- acousticssound waves, sound wave, sound, soundwave, vibration
- audio termsWAV, dB, tone, frequency response, MP3
- Physics quantitiesacceleration, amplitude, area, current, distance
impedanceadmittance
Permission to enter
conductance · conductivity · superconductivity · zero resistance · short circuit
impedancefacilitation
Making tasks easier
assistance · aid · enablement · furtherance · advantage