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Realization of Constant Speed of Electro-hydraulic Hoist
Author(s): 
Pages: 63-65
Year: Issue:  1
Journal: WELL LOGGING TECHNOLOGY

Keyword:  绞车电液比例阀数字控制速度;
Abstract: 新型测井绞车采用了电液比例阀,以调节滚筒旋转的角速度.测井中绞车滚筒半径不断变化,电缆的线速度也不断变化,为保证线速度恒定和顺利测井,需要不断进行人工调整,工作强度大,速度输出一致性差.介绍了一种恒速度方案,采用了单片机进行数字控制,根据绞车的工作特性,建立了控制模型,给出了数学公式,介绍了主要功能.所设计的数字控制器的速度稳定性完全满足测井工作需要,降低了劳动强度.
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