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1. 发明公开

EP0096948A1 Potentiometer 失效
标题翻译：电位器。
公开(公告)号：EP0096948A1
公开(公告)日：1983-12-28
申请号：EP83300883.2
申请日：1983-02-21
申请人： WELWYN ELECTRONICS LIMITED
发明人： Pitcher, Arnold
IPC分类号： H01C10/36 , F02D5/00
CPC分类号： F02D41/28 , F02D2200/0404 , H01C10/32 , H01C10/36 , H01C17/24
摘要： A rotary potentiometer is provided, particularly applicable in an internal combustion engine to follow movement of a rotatable mechanism such as a throttle or butterfly shaft in an induction manifold. The potentiometer comprises: a housing (1); an arcuate film resistance element (3) connected to terminals (4) and (5) in the housing; a wiper (10) supported on a rotatable carrier (11) and arranged to traverse the element. Adjustable stop means (14, 15) for the wiper carrier allow a position of restraint of the wiper at an end region of the element to be obtained and a helical spring (18) returns the wiper to the position of restraint from a position of rotation and electrically connects the wiper to a further terminal (19). A film (20) of electrically insulating material overlies the element at the end region where the stop means is provided and electrically insulates the wiper from the element in that position. Provision (21) is made for adjustment of the resistance of the element in the region of the insulating film.
摘要翻译：提供了一种旋转电位计，特别适用于内燃机，以跟随诸如节流阀或蝶阀的可旋转机构的运动。电位器包括：壳体（1）; 连接到壳体中的端子（4）和（5）的弓形膜电阻元件（3）支撑在可旋转载体（11）上并布置成横过所述元件的擦拭器（10）。用于擦拭器承载件的可调停止装置（14,15）允许在要获得的元件的端部区域处的擦拭器的约束位置，并且螺旋弹簧（18）使擦拭器返回到旋转位置的约束位置并将擦拭器电连接到另一终端（19）。电绝缘材料的薄膜（20）覆盖设置有止动装置的端部区域处的元件，并且在该位置上将擦拭器与元件电绝缘。设置（21）用于调整绝缘膜区域中的元件的电阻。

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