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Topic: Triboelectric effect

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	Triboelectric effect - Wikipedia, the free encyclopedia
		The triboelectric effect is a type of contact electrification in which certain materials become electrically charged after coming into contact with another different material, and are then separated.
		The triboelectric effect can also be used toward a positive end: it is the principle behind the charge build-up in a triboelectric-type Van de Graaff generator.
		The Lorente generator is a triboelectric machine to aid in the construction and operation of electrostatic generators.
	en.wikipedia.org /wiki/Triboelectric_effect (828 words)

	Triboelectric effect
		A Triboelectric Effect is an electrical phenomenon where certain materials, for example, glass, hard rubber, amber, or even the seat of one's pants become electrically charged by friction, being rubbed.
		Being electrically charged, either negatively or positively, upon contact with an uncharged object or one of opposite polarity there may be a discharge of static electricity, a spark.
		In order for the effect to develop the material must be rubbed with a compatible substance, for example, glass rubbed with silk will build up a charge, as will hard rubber rubbed with fur.
	www.ebroadcast.com.au /lookup/encyclopedia/tr/Triboelectric_effect.html (216 words)

	Monitrol Manufacturing Inc. (Site not responding. Last check: 2007-10-21)
		Triboelectric measurement, which has been used for broken bag detection for many years, is based on the triboelectric effect.
		Also known as particle impingement or frictional electrification, the triboelectric effect pertains to the resulting charge transfer when one material rubs or impacts another.
		Triboelectric measurement systems are designed to directly measure dust concentration in an exhaust duct.
	www.monitrolmfg.com /products/DustAlarm/dapo.htm (87 words)

	Pear Cable Audio Cables: Cable Design
		The skin effect is the tendency of current to travel on the outside of a conductor as the frequency rises.
		Both effects are a direct result of the sound being made by the audio system and are therefore making noise in sync with the music.
		The triboelectric effect is a familiar phenomenon to most people (though not by name).
	www.pearcable.com /sub_cable_design.htm (6584 words)

	All About Static Control \| Electro Static Technology Inc.
		This process is called the Triboelectric Effect ("tribo" means rubbing).
		The triboelectric effect is responsible for the shock you receive from a car door after you slide out.
		The Triboelectric effect is the major cause of static - the greater the force of friction or pressure, the more static will be created.
	www.est-static.com /static.htm (367 words)

	Electrical generator : Dynamo
		The Van de Graaff generator used the triboelectric effect to separate electric charges using the friction between insulators.
		He built the first electromagnetic generator based on this effect, using a copper disc rotating between the poles of a horseshoe magnet.
		The dynamo was the first electrical generator capable of delivering power for industry, and is still the most important generator in use in the 21st century.
	www.fastload.org /dy/Dynamo.html (609 words)

	[No title]
		One aging technique was applied to one bundle of wire, and each bundle of wire was monitored separately to isolate the sensitivity of the triboelectric effect.
		It was not difficult to determine a test to monitor the triboelectric effect along a wire because groups have been able to monitor the triboelectric effect in the past.
		Progression in the triboelectric effect can be any observable change in our data that keeps increasing or decreasing as a result of continual aging or damaging.
	www.ae.utexas.edu /courses/ase463q/design_pages/summer02/wired/final.html.doc (8956 words)

	(WO/2001/059017) POWDER COATING COMPOSITIONS (Site not responding. Last check: 2007-10-21)
		Fluidised-bed processes eliminate the Faraday cage effect, thereby enabling recessed portions in the substrate workpiece to be coated, and are attractive in other respects, but have the well-know disadvantage that the applied coatings are substantially thicker than those obtainable by electrostatic coating processes.
		It follows that a subjective quantitative assessment of the triboelectric performance of two differently coloured powders is possible by visual inspection of the colours of the powder coating compositions on the positive and negative plates relative to the respective colours of the powder coating compositions before they are mixed.
		the triboelectric performance may be quantified, alternatively or additionally, by incorporating a small amount of two heavy metal compounds into the respective powder coating compositions and measuring the relative amounts of the heavy metal compounds in the powder coating compositions after mixture and separation on to oppositely charged plates.
	www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=01/59017.010816&ELEMENT_SET=DECL (8064 words)

	[ProAud] Mic "Bangs"; cable problem?
		Triboelectricity is a potential (voltage) generated by transfer of charges from one dielectric to another, when there is friction between the two insulators.
		Foil shielded cable is typically poor because the spacing between the conductor and shield can change a lot with just a little external force, because the foil is loosely wrapped around the conductors.
		And the triboelectric effect is more pronounced here too because the slippery conductors can rub on each other more easily.
	www.pgm.com /pipermail/proaudio/2005-April/000594.html (396 words)

	Electrical Discharge (ESD) Phenomenon Related to Telecommunications Cabling Systems
		Static electricity is usually generated by the triboelectric effect which consists of the contact of two bodies (materials), of which at least one is insulating, and their posterior separation.
		Equivalent circuits to analyze the mechanism of charge and discharge of a human body due to the triboecletric effect are depicted in the Figure 3.
		Depending also on the values of the body resistance and due to the triboelectric effect the body may be charged to a potential of the order of several kilovolts that will be accumulated in its capacitance.
	www.siemon.com /uk/white_papers/04-01-15_electrical_discharge.asp (2056 words)

	Capacitor - Facts, Information, and Encyclopedia Reference article
		This is the triboelectric effect, the mechanical separation of charge in a dielectric.
		This effect is the basis of the capacitor.
		(Sometimes transformers are used for the same effect.) Here, a large value of capacitance, whose value need not be accurately controlled, but whose reactance is small at the signal frequency, is employed.
	www.startsurfing.com /encyclopedia/c/a/p/Capacitor.html (2699 words)

	Eddy-Current Probe Cabling Considerations
		Cable length effects calibration because drivers transmit a high-frequency signal to the probe through the cable.
		This effect creates small voltage spikes in the cable due to static charges created when the conductors and insulation rub together.
		This effect is part of the physics of cabling and is not a function of the driver or probe design.
	www.lionprecision.com /tech-library/technotes/cap-0024-cabling.html (250 words)

	AEROFEED "About EMI fields"
		The damaging effects of electrostatic discharge (ESD) are well known by people working with electronic components and devices.
		EMI fields are created by triboelectric effect any time two dissimilar materials are brought together, then separated.
		Whether or not these short-duration currents and/or localized electron concentrations have any degrading effects on the item involved depends entirely on what the item is and how it is engineered.
	www.bita.se /bitase1/af-emi.htm (456 words)

	2 Background Theory
		The triboelectric effect is an electrical phenomenon in which electrical charge is transferred between materials that are rubbed together.
		For humidity, the drier the air is, the greater the triboelectric effect.
		The triboelectric effect will not be the only source of electrical current, and we have to pinpoint these sources in order to eliminate them or reduce their impact on our analysis.
	www.ae.utexas.edu /courses/ase463q/design_pages/spring03/wavelet/Webpage/Background.htm (3113 words)

	[No title]
		Of these, triboelectric testing appears to be the most difficult to redefine.
		Even though the triboelectric effect has been known for some time, the history of testing for this effect has revealed difficulties in getting reproducible, repeatable, and relevant results.
		Also, the correlation between triboelectric charging and the destruction of parts has not been clearly established.
	www.evaluationengineering.com /archive/articles/0399cope.htm (1951 words)

	Electrophorus - Wikipedia, the free encyclopedia
		The electrophorus consists of a dielectric plate or 'cake' on a metal surface and a metal plate with an insulating handle.
		First, the dielectric plate is charged through friction (see triboelectric effect).
		Then, the metal plate is placed onto the dielectric plate.
	en.wikipedia.org /wiki/Electrophorus (210 words)

	Triboelectric effect: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-10-21)
		The triboelectric effect is an electrical phenomenon A physical phenomenon involving electricity
		This effect is the principle behind the charge build-up in a triboelectric-type Van de Graaff generator Electrical device that produces a high voltage by building up a charge of static electricity
		Ferroelectric effect In physics, the ferroelectric effect is an electrical phenomenon whereby certain ionic crystals may exhibit a spontaneous dipole moment....
	www.absoluteastronomy.com /t/triboelectric_effect (2343 words)

	Monitor: Product homepage
		Triboelectric measurement, which has been used for broken bag detection for many years.
		Also known as particle impingement or frictional electrification, the triboelectric effect pertains to the resulting charge transfer when one material rubs or impacts another.The result of dust particle collision with a stainless steel probe is the generatio of electrical signals, which are continuously monitored and analyzed by the electronics.
		The SiloPatrol® SE is the next generation of 21st century smart cable-based level measurement sensors and extends Monitor’s ability to provide the most reliable bulk solids inventory management solution at the best value, even in the most harsh and dynamic of conditions.
	www.monitortech.com /product_pe_broken.shtml (1067 words)

	Glossary
		The shielding effect is the reason that conductive bags and tote boxes are in common use today.
		A belt of a material at one end of the triboelectric series is driven at high speed over a stationary and isolated bar of material from the other end of the triboelectric series.
		One common effect is to have a person with long hair stand on an insulative surface and then touch the high voltage end of the generator, their hair then stands straight out.
	www.national.com /appinfo/eosesd/glossary.htm (5013 words)

	AudioReview.com's Forum Archives
		This is in effect a claim that the cables are not sonically different, and that one should not pay more money because they are sonically the same.
		Every guitar player on the planet has dealt with triboelectric noise, they often purchase cables that minimize this effect for the reason that is it audible when the move the cord coming from the guitar.
		However, I got that the thrust was that triboelectric effects were not even real or relevant to cables, and just wanted to show that they did exist, and that they can be an issue for cables.
	archive.audioreview.com /03/0EF444F2.php (3963 words)

	The Triboelectric Series of Materials Causing Static Electricity - Succeed in Physical Science
		Since static electricity is the collection of electrically charged particles on the surface of a material, various materials have a tendency of either giving up electrons and becoming positive (+) in charge or attracting electrons and becoming negative (-) in charge.
		The Triboelectric Series is a list of materials, showing which have a greater tendency to become positive (+) and which have a greater tendency to become negative (-).
		The Triboelectric Series is a list of materials, showing the relative tendency to become charged.
	www.school-for-champions.com /science/static_materials.htm (1038 words)

	Custom Antistatic Brushes by
		These materials would be near neutral (cotton) in the center of the Triboelectric series.
		Some surfaces, such as adhesive tape or plastic sheets, CAN attain intimate contact over a large area, and DO exhibit strong charging when they are simply touched to another surface and pulled away.
		For example, the ordering of the triboelectric series is different when surfaces are rubbed together rather than simply touched.
	www.precisionbrush.com /Group/YLMRR3N197BL3X2T.htm (1470 words)

	Photoelectric effect of a zinc plate (Site not responding. Last check: 2007-10-21)
		A static negative charge is applied to the metal plate using the triboelectric effect by rubbing a Teflon rod to separate charge by friction and touching the rod to the plate.
		The photoelectric effect will cannot easily cause the metal plate to acquire a charge as electrons are ejected from the surface.
		With this method the photoelectric effect will cause the plate to lose all of its initial excess negative charge.
	www.physics.brown.edu /physics/demopages/Demo/modern/demo/7A1010.htm (453 words)

	Electronics/Static Electricity - Wikibooks, collection of open-content textbooks
		A Van de Graaff generator is basically a pump for electrons (or a "charge pump").
		It uses the triboelectric effect to take electrons from one conductor and deposit them on another.
		The triboelectric effect is caused when two different materials are brought into contact and then separated.
	en.wikibooks.org /wiki/Electronics:Static_Electricity (662 words)

	Conveyor System Static Electricity Considerations
		It can be generated by the triboelectric effect and can be accumulated by conductive and inductive charging.
		When two surfaces in close proximity are moved relative to one another, a static charge is generated (the triboelectric effect).
		In operation, the belt surface is continually leaving the pulley surface, generating static electricity.
	www.belting.cc /beltdata/static-electricity.htm (663 words)

	The educational encyclopedia, Electrostatic Discharges or ESD, ESD protection (Site not responding. Last check: 2007-10-21)
		The triboelectric effect is responsible for the shock you receive from a car door after you slide out, Static control devices: FAQ
		Grounding and bonding applications for control of static electricity static electricity is a major cause of fires and explosions in many industries.
		Static electricity static electricity is often considered to be the effect of electric charges at rest on insulators or insulated conductors,..., Charging by walking
	users.telenet.be /educypedia/electronics/esd.htm (630 words)

	Amber and electricty, electrostatic charge
		The triboelectric series is a list that ranks various materials according to their tendency to gain or lose electrons.
		Note that the tendency of a material to become positive or negative after triboelectric charging has nothing to do with the level of conductivity (or ability to discharge) of the material.
		The farther the separation in the table, the greater the effect.
	www.ambergoods.com /electron.htm (678 words)

	BOILERS (Site not responding. Last check: 2007-10-21)
		The Triboelectric effect created by the Cannon is initiated by the introduction of different voltages to the feed water, polarizing the particulent.
		In conjunction with a filtration system, the concentrate (sludge) is extracted from the water and routed away from the pure H‘0.
		The repelling effects of the Cannon prevent contact of the membrane with damaging and harmful pollutants, giving it superb performance and longevity.
	www.environalysisinc.on.ca /highcap/cannon.html (1520 words)

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