发明名称 DISPLACEMENT MEASUREMENT WITH A SPRING AND FORCE MEASUREMENT FOR ACTUATORS, BLOW-OUT PREVENTERS, VALVES
摘要 The displacement of the first component (2) is measured by means of a spring (3) and a force measurement device (10, 4) in the form of a stationary conductor (10) in the form of a wire. This is accurate, not susceptible to wear, resistant to vibration, shocks or corrosion and economical to use in almost all media, without any special sealing measures, as well as in any pressure range. The invention can be applied to devices used to obtain oil and gas, actuators, blow-out preventers and valves.
申请公布号 WO0221072(A3) 申请公布日期 2002.05.23
申请号 WO2001EP09513 申请日期 2001.08.17
申请人 COOPER CAMERON CORPORATION;BIESTER, KLAUS;KUNOW, PETER 发明人 BIESTER, KLAUS;KUNOW, PETER
分类号 E21B33/06;E21B34/16;F15B15/28;F16K37/00;G01L1/04;G01L1/20 主分类号 E21B33/06
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