公开(公告)号：US3445168A

公开(公告)日：1969-05-20

申请号：US3445168D

申请日：1965-10-28

申请人： VISHAY INTERTECHNOLOGY INC

发明人： ZANDMAN FELIX ,  POST DANIEL

IPC分类号： G01B11/16

CPC分类号： G01B11/165

公开(公告)号：US3517436A

公开(公告)日：1970-06-30

申请号：US70179467

申请日：1967-11-01

申请人： VISHAY INTERTECHNOLOGY INC

发明人： ZANDMAN FELIX ,  BOYD BRANIN A

IPC分类号： H01C1/024 ,  H01C7/06 ,  H01C17/232 ,  H01C17/24 ,  H01C17/245 ,  H01C1/02 ,  H01C17/00

CPC分类号： H01C1/024 ,  H01C7/06 ,  H01C17/232 ,  H01C17/2416 ,  H01C17/245 ,  Y10T29/49087 ,  Y10T29/49099

公开(公告)号：US3601744A

公开(公告)日：1971-08-24

申请号：US3601744D

申请日：1969-07-14

申请人： VISHAY INTERTECHNOLOGY INC

发明人： ZANDMAN FELIX

IPC分类号： H01C10/06 ,  H01C10/30 ,  H01C10/40 ,  H01C9/02

CPC分类号： H01C10/308 ,  H01C10/06 ,  H01C10/40

摘要： An adjustable resistor wherein a predetermined pattern of thin metallic film is deposited upon a substrate, a thin isolating layer being interposed between the substrate and film, and a movable contact system with suitable linear or rotary mechanical drive means is arranged for movability parallel to the substrate surface on which are fixed the isolating layer and metallic film, the contact system providing connection to the metallic film at a distance from one end thereof dependent on the position of the drive means. The pattern in the metallic film compels the electric current to flow through a path of limited width and of effective length much greater than the straightline length along the midline of the pattern.