Self-excitation — is a method used by electrical generators to use some of the generator s output to generate the magnetic field used by the generator. Instead of having large permanent magnets, self excited generators have extra coils that either boost the… … Wikipedia
Self-powered equipment — is a term used for electrical appliances which can be powered by human muscle power as an alternative to conventional sources of electricity such as primary batteries and the power gridSuch devices contain electrical generators or an induction… … Wikipedia
Self-assembled monolayer — Self assembled monolayers (SAMs) are surfaces consisting of a single layer of molecules on a substrate. Rather than having to use a technique such as chemical vapor deposition or molecular beam epitaxy to add molecules to a surface (often with… … Wikipedia
Self-contained self-rescue device — Self contained self rescue device, SCSR, or self contained self rescuer, is a portable oxygen source for providing breathable air when the surrounding atmosphere lacks oxygen or is contaminated with toxic gases, eg. carbon monoxide. A SCSR is… … Wikipedia
Self oscillation — is a term usually used when describing a voltage controlled filter of an analog synthesizer. Self oscillation occurs when the resonance or Q factor of the filter is set so high as to cause the filter circuitry to generate a tone on its own after… … Wikipedia
self-excited — self excitation /self ek suy tay sheuhn, si /, n. self exciter, n. /self ik suy tid/, adj. Elect. noting a generator with magnets that are excited by the current it produces. [1895 1900] * * * … Universalium
self-excited — self excitation /self ek suy tay sheuhn, si /, n. self exciter, n. /self ik suy tid/, adj. Elect. noting a generator with magnets that are excited by the current it produces. [1895 1900] … Useful english dictionary
self-excited — self′ excit′ed adj. elo having magnets that are excited by the electric current produced: a self excited generator[/ex] … From formal English to slang
self-excited — [self′ek sīt′id] adj. Elec. excited by field current supplied from its own armature: said of a generator … English World dictionary
self-ex|ci|ta|tion — «SEHLF EHK sy TAY shuhn», noun. the excitation of the field of a generator by currents taken from its own armature … Useful english dictionary