wiegand effect
1Wiegand effect — The Wiegand effect is named after its discoverer, John R. Wiegand.OverviewThe Wiegand effect is a pulse generating phenomenon in a special alloy wire that is processed in such a way as to create two distinct magnetic regions in the same… …
2Wiegand — is an old German surname. It originated from the Old High German verb wgan , meaning to fight . through the past participle form wgant , meaning the fighter . The word comes from wîg ( battle / war ). The name was in use by the Middle Ages, also… …
3Wiegand interface — The Wiegand interface is a de facto wiring standard which arose from the popularity of Wiegand effect card readers in the 1980s. It is commonly used to connect a card swipe mechanism to the rest of an electronic entry system. The sensor in such a …
4John R. Wiegand — discovered the Wiegand effect, a physical phenomenon in which a specially constructed Wiegand wire can detect small magnetic fields. The Wiegand wire is commonly used as a sensor to read security access cards. There is also a Wiegand Protocol… …
5Access control — is the ability to permit or deny the use of a particular resource by a particular entity. Access control mechanisms can be used in managing physical resources (such as a movie theater, to which only ticketholders should be admitted), logical… …
6Access badge — An access badge is a credential used to gain entry to an area having automated access control entry points. Entry points may be doors, turnstiles, parking gates or other barriers.Access badges use various technologies to identify the holder of… …
7Card reader — A card reader is a data input device that reads data from a card shaped storage medium. Historically, paper or cardboard punched cards were used throughout the first several decades of the computer industry to store information and write programs …
8Виганд — Люди: Виганд, Огюст  бельгийский органист. Виганд Марбургский немецкий хронист. Виганд, Джон (англ.)русск. американский инженер немецкого происхождения, автор эффекта Виганда  …
9Виганд (значения) — Люди: Виганд, Огюст  бельгийский органист. Виганд Марбургский немецкий хронист. Виганд, Джон (англ.)русск. американский инженер немецкого происхождения, автор эффекта Виганда (ан …
10Door — For other uses, see Door (disambiguation). A door is a movable structure used to open and close off an entrance, typically consisting of a panel that swings on hinges or that slides or rotates inside of a space. When open, they admit ventilation… …
