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Correction method and device for achieving centering movement

A motion and motion axis technology, applied in the field of correction methods and devices for realizing centering motion, can solve the problem of high correction cost

Inactive Publication Date: 2017-02-22
NEUSOFT MEDICAL SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the present invention provides a correction method and device for realizing centering movement, so as to solve the technical problem of high cost of correction for centering movement in the prior art

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  • Correction method and device for achieving centering movement
  • Correction method and device for achieving centering movement
  • Correction method and device for achieving centering movement

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Embodiment Construction

[0050] In order to make the above objectives, features and advantages of the present invention more obvious and easy to understand, the following further describes the embodiments of the present invention in detail with reference to the accompanying drawings and specific implementations.

[0051] In the prior art, in order to improve the motion accuracy and make the centering position accurate, some X-ray machines adopt high-performance materials in the design of mechanical devices, which can effectively reduce wear and deformation, and to a certain extent can reduce the long-term use of the equipment. Movement deviation. In terms of displacement sensor selection, use an absolute encoder, or a potentiometer with high accuracy, good linearity and repeatability, small temperature drift, and wear resistance, which ensures that the accuracy of the calibration data can be maintained for a long time. Most X-ray machine manufacturers also regularly maintain and maintain the equipment, r...

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Abstract

The invention discloses a correction method and device for achieving centering movement. The correction method and device are used for correcting the centering position automatically. The method comprises the steps that after an X-ray generation device moves to the centering position for shooting, a transmission image in an imaging region of the X-ray generation device is collected; the centering position is determined according to a centering position value of the first motion axis and a centering position value of the second motion axis; the first motion axis is parallel to the abscissa axis of the imaging region, and the second motion axis is parallel to vertical axis of the imaging region; if edges of the transmission image are all located in the imaging region, a first position deviation of the transmission image center point and the imaging region center point in the abscissa axis direction of the image region is detected, and a second position deviation of the transmission image center point and the imaging region center point in the vertical axis direction of the image region is detected; the centering position value of the first motion axis is corrected according to the first position deviation, and a centering position value of the second motion axis is corrected according to the second position deviation.

Description

Technical field [0001] The invention relates to the technical field of motion control, in particular to a correction method and device for realizing centering motion. Background technique [0002] The X-ray machine is mainly composed of three parts: X-ray generator, X-ray imaging device and X-ray auxiliary device. Among them, the X-ray auxiliary device is used to meet clinical needs and facilitate patient examination. It is composed of mechanical devices and imaging system devices. Among them, mechanical devices include sky rails, ground rails, columns, chest X-ray racks, suspension racks, photography beds, etc. , Image system devices include beam limiters, wire grids, etc. Different types of X-ray machines have different configurations, numbers and functions of X-ray auxiliary devices. The more electric shafts of the X-ray auxiliary devices, the more intelligent and automated, and the easier the operation. [0003] Centering is a photographing posture in which the X-ray generato...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/00
CPCA61B6/582A61B6/587
Inventor 周鹏牟军
Owner NEUSOFT MEDICAL SYST CO LTD
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