自动深度磁记号系统

Depth system of automatic magnetic mark

利用微机采样、控制，在软件的支持与管理下，加上外围检测、控制和接口电路，在标准井中给各种测井电缆做长度磁性记号。自动注入磁性记号，以标准井每节套管长度为标准尺来丈量电缆，所做的电缆长度磁性记号不存在累积误差。所有电缆的零长统一。两个记号之间长度为 ２５ ｍ，每５００ ｍ连打两个磁性记号。

Under the control of computer and the management of software, along with the circuits of detection, control, and interfac, the magnetic mark can be automatically made on various kinds of logging cables in type well. The length of every casing in the type well is regarded as the standard ruler for measuring the length of cables, therefore there is no accumulated errors for the magnetic marks made on cables.