发明名称 |
METHOD FOR DETERMINING DEAD ZONE OF VALVE |
摘要 |
The invention relates to a method for determining the dead zone of a proportional control valve (8) used for controlling an actuator of a rock drilling device, the method comprising controlling the control valve (8) with an electric P controller (12) and measuring the position of the actuator in a coordinate system representing its movement with a separate position detector. The dead zone is determined by means of a product of the P controller of the control valve (8) and the difference value.
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申请公布号 |
CA2723610(A1) |
申请公布日期 |
2009.11.19 |
申请号 |
CA20092723610 |
申请日期 |
2009.05.11 |
申请人 |
SANDVIK MINING AND CONSTRUCTION OY |
发明人 |
PUURA, JUSSI;SAARELA, MARKUS |
分类号 |
E21B7/02;E21B44/00;F15B13/044;F15B19/00 |
主分类号 |
E21B7/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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