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High-precision linear displacement measurement device and calibration measurement method for actuators

An actuator, linear displacement technology, applied in the field of measurement, can solve the problems that the measuring rod is not parallel to the motion axis, the measuring rod cannot always be in the center of the magnetic ring, etc. The effect of the amount of rotation

Active Publication Date: 2020-12-18
CHINA PETROLEUM & CHEM CORP +2
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Problems solved by technology

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a high-precision linear displacement measuring device and a calibration measurement method for the actuator, which can effectively solve the problem that the measuring rod is not parallel to the motion axis and that the measuring rod cannot be kept constant within the stroke range. The problem of being in the center of the magnetic circle

Method used

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  • High-precision linear displacement measurement device and calibration measurement method for actuators
  • High-precision linear displacement measurement device and calibration measurement method for actuators
  • High-precision linear displacement measurement device and calibration measurement method for actuators

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Embodiment 1

[0046]Comply with the above-mentioned technical scheme, combineFigure 1-12 , This embodiment provides a high-precision linear displacement measuring device for an actuator, including an actuator 1, an actuator bracket 2, an anti-rotation mechanism 3, a position adjustment mechanism 4, an angle adjustment mechanism 5 and a centering rod 6.

[0047]Such asfigure 1 As shown, the actuator 1 includes an actuator housing 1-1 and a motion shaft 1-2. The motion shaft 1-2 is movably sleeved in the actuator housing 1-1, and the motion shaft 1-2 can be in the actuator housing 1. -1 moves up and down along the axial direction, and the movement axis 1-2 is perpendicular to the installation plane at the bottom of the actuator bracket 2.

[0048]The actuator 1 is connected with the actuator bracket 2, the anti-rotation mechanism 3 is sleeved outside the motion axis 1-2, the position adjustment mechanism 4 is vertically connected with the anti-rotation mechanism 3, and the angle adjustment mechanism 5 a...

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Abstract

The invention discloses a high-precision linear displacement measuring device for an actuator, an adjustment and correction method, and a measuring method. The high-precision linear displacement measuring device for the actuator comprises an arranged actuator, an actuator bracket, an anti-rotation mechanism, a position adjustment mechanism, an angle adjustment mechanism and a center adjustment rod, a magnetic ring of the position adjustment mechanism and a sensor of the angle adjustment mechanism constitute a magnetostrictive displacement sensor together, a side measuring method is adopted, two axisymmetric gaps in an annular clearance hole formed between the magnetic ring in the position adjustment mechanism and a measuring rod in the angle adjustment mechanism are measured by the centeradjustment rod, and the adjustment and correction directions of the measuring rod and the magnetic ring can be determined; and the stroke range of the actuator is adjusted for multiple times in a reciprocating manner, so that the measuring rod and a moving shaft are paralleled within the stroke range of the actuator. The high-precision linear displacement measuring device for the actuator is simple to install, is easy to implement, and has high measurement accuracy.

Description

Technical field[0001]The invention belongs to the field of measurement, and relates to a high-precision linear displacement measurement device and a calibration measurement method for an actuator.Background technique[0002]High-precision linear-stroke adjustment actuators have high requirements for linear displacement measurement. Due to the application environment, installation form, stroke limitation and other factors, it is difficult to measure and calibrate the accuracy of their finished products, especially the load equipment of the actuator The measurement after installation is more difficult, and it is easy to cause abnormal phenomena such as large measurement data errors or unstable data.[0003]For the accuracy measurement of the finished actuator, the installation form of the displacement sensor is divided into two categories: coaxial type and side type. Coaxial installation can only install the displacement sensor on the extension line of the motion axis. Fix the magnetic ri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/02
Inventor 田中山马锋岗赖少川曾维亮杨昌群许长华牛道东杨新锋
Owner CHINA PETROLEUM & CHEM CORP
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