CONTACT WIRE WEAR CHECKING AND RECORDING DEVICE Russian patent published in 1998 - IPC

FIELD: electric transport contact wire diagnostic equipment. SUBSTANCE: impulse linear illuminator of contact wire and reflected light receiver are installed in device on vehicle current collector parallel to its pan. Reflected light receiver is made in form of linear TV cameras installed on common base in one row parallel to current collector pan and, consequently, to illuminator. Each linear TV camera consisting of objective with light filter and linear multielement photoreceiving device arranged in plane of image register width of band of light reflected from worm surface of contact wire in wire zone covered by camera along straight line square to axis of path and transmits output electric information signals and receives synchronizing signals through high-voltage decoupling converter in information processing and indication unit. Device is simplified owing to use of TV cameras with linear multielement photoreceiving device, reduction of number of communication channels and resulting reduction of amount of required electronic equipment. EFFECT: high resolution in measuring wear area width, reduced requirements to focal depth and rapidity of objectives of TV cameras, reduced sensitivity to electromagnetic interferences owing to considerable space between active (semiconductor) elements and contact wire and possibility of effective screening, simplified design of device. 2 dwg