internal input impedance
21Electrical element — Electrical elements are conceptual abstractions representing idealized electrical components, such as resistors, capacitors, and inductors, used in the analysis of electrical networks. Any electrical network can be analysed as multiple,… …
22Action potential — In physiology, an action potential is a short lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called… …
23Pickup (music) — A pickup device acts as a transducer that captures mechanical vibrations (usually from suitably equipped stringed instruments such as the electric guitar, electric bass guitar or electric violin) and converts them to an electrical signal, which… …
24Charge amplifier — A charge amplifier is a current integrator driven by an electrical source with capacitive nature such as a piezoelectric sensor. Contrary to what its name may suggest, a charge amplifier does not amplify the electric charge present at its input… …
25Pickup (music technology) — For phonograph pickup, see Magnetic cartridge. For other uses, see Pickup disambiguation page. Three magnetic pickups on a Peavey Raptor with the pickup configuration of a fat strat (H S S). The bridge (right) pickup is a humbucker and the neck… …
26Acoustic transmission lines — An acoustic transmission line is the acoustic analog of the electrical transmission line, typically thought of as a rigid walled tube that is long and thin relative to the wavelength of sound present in it. Pipe organs, woodwinds, and the like… …
27Glass electrode — A glass electrode is a type of ion selective electrode made of a doped glass membrane that is sensitive to a specific ion. It is an important part of the instrumentation for chemical analysis and physico chemical studies. In modern practice,… …
28IEEE 1355 — IEEE 1355, IEC 14575, or ISO 14575 is a data communications standard, the IEEE Standard for Heterogeneous Interconnect (HIC). It is a low cost, low latency, scalable serial interconnection system, originally intended for communication between… …
29Oscilloscope types — This is a subdivision of the Oscilloscope article, discussing the various types and models of oscilloscopes in greater detail. Contents 1 Cathode ray oscilloscope (CRO) 1.1 Dual beam oscilloscope 2 Analog storage oscilloscope …
30Gyrator — The gyrator or positive impedance inverter is an electric circuit which inverts an impedance. In other words, it can make a capacitive circuit behave inductively, a bandpass filter behave like a band stop filter, and so on. It is primarily used… …
