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38 relations: Alarm device, Band gap, Cadmium, Cadmium selenide, Cadmium sulfide, Charge carrier, Copper, Dopant, Dynamic range compression, Electrical resistance and conductance, Electron, Electron hole, Frequency, Germanium, Guitar amplifier, Incandescent light bulb, Indium antimonide, Infrared, Infrared astronomy, Infrared spectroscopy, Latency (engineering), Lead(II) sulfide, Light-emitting diode, Neon, Neon lamp, Nightlight, Optoelectronics, Passivity (engineering), P–n junction, Photoconductivity, Photodiode, Photon, Resistor, Restriction of Hazardous Substances Directive, Semiconductor, Semiconductor device, Tremolo (electronic effect), Valence and conduction bands.
Alarm device
An alarm device or system of alarm devices gives an audible, visual or other form of alarm signal about a problem or condition.
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Band gap
In solid-state physics, a band gap, also called an energy gap or bandgap, is an energy range in a solid where no electron states can exist.
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Cadmium
Cadmium is a chemical element with symbol Cd and atomic number 48.
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Cadmium selenide
Cadmium selenide is an inorganic compound with the formula CdSe.
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Cadmium sulfide
Cadmium sulfide is the inorganic compound with the formula CdS.
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Charge carrier
In physics, a charge carrier is a particle free to move, carrying an electric charge, especially the particles that carry electric charges in electrical conductors.
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Copper
Copper is a chemical element with symbol Cu (from cuprum) and atomic number 29.
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Dopant
A dopant, also called a doping agent, is a trace impurity element that is inserted into a substance (in very low concentrations) to alter the electrical or optical properties of the substance.
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Dynamic range compression
Dynamic range compression (DRC) or simply compression is an audio signal processing operation that reduces the volume of loud sounds or amplifies quiet sounds thus reducing or compressing an audio signal's dynamic range.
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Electrical resistance and conductance
The electrical resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor.
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Electron
The electron is a subatomic particle, symbol or, whose electric charge is negative one elementary charge.
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Electron hole
In physics, chemistry, and electronic engineering, an electron hole (often simply called a hole) is the lack of an electron at a position where one could exist in an atom or atomic lattice.
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Frequency
Frequency is the number of occurrences of a repeating event per unit of time.
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Germanium
Germanium is a chemical element with symbol Ge and atomic number 32.
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Guitar amplifier
A guitar amplifier (or amp) is an electronic device or system that strengthens the weak electrical signal from a pickup on an electric guitar, bass guitar, or acoustic guitar so that it can produce sound through one or more loudspeakers, which are typically housed in a wooden cabinet.
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Incandescent light bulb
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated to such a high temperature that it glows with visible light (incandescence).
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Indium antimonide
Indium antimonide (InSb) is a crystalline compound made from the elements indium (In) and antimony (Sb).
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Infrared
Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.
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Infrared astronomy
Infrared astronomy is the branch of astronomy and astrophysics that studies astronomical objects visible in infrared (IR) radiation.
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Infrared spectroscopy
Infrared spectroscopy (IR spectroscopy or vibrational spectroscopy) involves the interaction of infrared radiation with matter.
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Latency (engineering)
Latency is a time interval between the stimulation and response, or, from a more general point of view, a time delay between the cause and the effect of some physical change in the system being observed.
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Lead(II) sulfide
Lead(II) sulfide (also spelled sulphide) is an inorganic compound with the formula PbS.
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Light-emitting diode
A light-emitting diode (LED) is a two-lead semiconductor light source.
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Neon
Neon is a chemical element with symbol Ne and atomic number 10.
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Neon lamp
A neon lamp (also neon glow lamp) is a miniature gas discharge lamp.
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Nightlight
A nightlight is a small light fixture, usually electrical, placed for comfort or convenience in dark areas or areas that may become dark at certain times, such as at night or in an emergency.
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Optoelectronics
Optoelectronics is the study and application of electronic devices and systems that source, detect and control light, usually considered a sub-field of photonics.
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Passivity (engineering)
Passivity is a property of engineering systems, used in a variety of engineering disciplines, but most commonly found in analog electronics and control systems.
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P–n junction
A p–n junction is a boundary or interface between two types of semiconductor materials, p-type and n-type, inside a single crystal of semiconductor.
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Photoconductivity
Photoconductivity is an optical and electrical phenomenon in which a material becomes more electrically conductive due to the absorption of electromagnetic radiation such as visible light, ultraviolet light, infrared light, or gamma radiation.
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Photodiode
A photodiode is a semiconductor device that converts light into an electrical current.
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Photon
The photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles).
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Resistor
A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element.
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Restriction of Hazardous Substances Directive
The Restriction of Hazardous Substances Directive 2002/95/EC, (RoHS 1), short for Directive on the restriction of the use of certain hazardous substances in electrical and electronic equipment, was adopted in February 2003 by the European Union.
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Semiconductor
A semiconductor material has an electrical conductivity value falling between that of a conductor – such as copper, gold etc.
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Semiconductor device
Semiconductor devices are electronic components that exploit the electronic properties of semiconductor materials, principally silicon, germanium, and gallium arsenide, as well as organic semiconductors.
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Tremolo (electronic effect)
Tremolo, in electronics, is the variation in amplitude of sound achieved through electronic means, sometimes mistakenly called vibrato, and producing a sound somewhat reminiscent of flanging, referred to as an "underwater effect".
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Valence and conduction bands
In solid-state physics, the valence band and conduction band are the bands closest to the Fermi level and thus determine the electrical conductivity of the solid.
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Cadmium sulfide cell, Cadmium sulfide photocell, CdS cell, CdS photoresistor, Cds cell, Light Dependent Resistor, Light dependant resistor, Light dependent resistor, Light-dependent resistor, Organic photo conductor, PbS photoresistor, Photo resistor, Photocells, Photoconductive cell.
References
[1] https://en.wikipedia.org/wiki/Photoresistor
