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An air core gauge is a specific type of rotary actuator in an analog display gauge that allows an indicator to rotate a full 360 degrees. It is used in gauges and displays, most commonly automotive instrument clusters. A typical automotive application is shown at the right. The air core gauge is a type of "air-core motor". It may be considered a "gauge movement" or "pointer indication device".〔( Simco meter movements )〕 == Background == There are four common types of rotary actuators:〔(Comparing Gauge Movements )〕 * Physical gauges, in which the needle is attached directly to the value being measured; for example, a mechanical pressure gauge * Analog volt meters or d'Arsonval movements, which consist of a coil and a permanent magnet * Stepper motors, which move in one-notch increments or steps * Air-core motors, as described below. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Air core gauge」の詳細全文を読む スポンサード リンク
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