Impedance may refer to:
- the ratio of the voltage phasor to the electric current phasor, as in
- Electrical impedance, a measure of opposition to time-varying electric current in an electric circuit. Electrical tension (or voltage after its SI unit, the Volt) is the difference of electrical potential between two points of an electrical In Physics and Engineering, a phase vector ("phasor" is a representation of a Sine wave whose amplitude ( A) phase ( θ) Electric current is the flow (movement of Electric charge. The SI unit of electric current is the Ampere. Electrical impedance, or simply impedance, describes a measure of opposition to a sinusoidal Alternating current (AC An electrical network is an interconnection of Electrical elements such as Resistors Inductors Capacitors Transmission lines Voltage
- Characteristic impedance, a measure of opposition to electric current propagation in a transmission line. The characteristic impedance or surge impedance of a uniform Transmission line, usually written Z_0 is the ratio of the amplitudes of a single A transmission line is the material medium or structure that forms all or part of a path from one place to another for directing the transmission of energy
- Impedance matching and Impedance mismatch. Impedance matching is the electronics design practice of setting the Output impedance ( Z S of a signal source equal to the Input impedance ( Impedance matching is the electronics design practice of setting the Output impedance ( Z S of a signal source equal to the Input impedance (
- Vacuum impedance, a universal constant. Impedance of Free Space (also known as Z_0 is a Canadian IDM and Electronica group
- Electromagnetic impedance, a constant related to electromagnetic wave propagation in a medium. In problems of Electromagnetic wave propagation in a Transmission medium, the electromagnetic impedance, also known as the intrinsic impedance, is A transmission medium' (plural transmission media) is a material substance ( Solid, Liquid or Gas) which can propagate
- Mechanical impedance, a measure of opposition to motion of a structure subjected to a force. Mechanical impedance is a measure of how much a structure resists motion when subjected to a given force In Physics, a force is whatever can cause an object with Mass to Accelerate.
- Acoustic impedance, a constant related to the propagation of sound waves in an acoustic medium. The acoustic impedance Z (or sound impedance) is a frequency f dependent parameter and is very useful for example for describing the behaviour of musical Sound' is Vibration transmitted through a Solid, Liquid, or Gas; particularly sound means those vibrations composed of Frequencies
- Linear response function, a general way to represent the input-output characteristics of a system. A linear response function describes the input-output relationshipof a signal transducer such as a radio turning electromagnetic waves into musicor a neuron turning synaptic input into
- Object-relational impedance mismatch, difficulties encountered when a relational database management system in an object-oriented programming language
Dictionary
impedance
-noun
- (physics) A measure of the opposition to the flow of an alternating current in a circuit; the aggregation of its resistance, inductive and capacitive reactance
- (physics, usually with “mechanical”) a measure of opposition to motion of something subjected to a force.
- (physics, usually with “acoustic” or “sound”) the sound pressure divided by the particle velocity and the surface area through which an acoustic wave propagates.
- (by analogy, software engineering, usually with “mismatch”) a measure of the opposition caused by differences between two paradigms, especially between object oriented development and relational databases
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic