公开(公告)号：US3725637A

公开(公告)日：1973-04-03

申请号：US3725637D

申请日：1971-05-06

申请人： WELD RECORD CORP

发明人： WENRICH C ,  DOWNS B

IPC分类号： G01R15/00 ,  G01R21/00 ,  G07C3/12 ,  B23K9/00

CPC分类号： G07C3/12 ,  G01R15/00 ,  G01R21/00

摘要： This invention relates to a system for making a record of the amount of work actually produced by an arc welder or similar machine for a given period of time. The arc welder may be energized, for example, for eight hours but may be actually welding for only four or five hours. The system includes a current sensor which records only when at least minimum arc currents flow, and a voltage sensor which records only when at least voltages sufficient to sustain an arc and which are greater than those at which short circuit occur. The simultaneous occurrence of both such currents and voltages is necessary for recording.

摘要翻译： 本发明涉及一种用于在给定时间段内记录实际由电弧焊机或类似机器产生的工作量的系统。 电弧焊机可以通电例如8小时，但是实际上可能只焊接四或五个小时。 该系统包括仅在至少最小电弧电流流动时记录的电流传感器，以及仅在至少电压足以维持电弧并且大于短路发生电压时才记录的电压传感器。 同时发生这种电流和电压都是记录所必需的。