Single-axis movement control system for industrial CT (computed tomography)

Abstract

The invention discloses a single-axis movement control system for industrial CT (computed tomography). The single-axis movement control system is characterized by comprising an upper computer, a controller, a driver, an execution mechanism and a feedback device, the upper computer is used for transmitting control commands and displaying information fed by the feedback device, the controller receives the commands transmitted by the upper computer, corresponding pulse signals are transmitted after the commands are processed by the controller and control the driver to drive the execution mechanism to move, and the feedback device feeds the information generated by the execution mechanism to the controller and the driver in a pulse signal form. The single-axis movement control system for the industrial CT has the advantages that the independent-axis movement control system on the basis of an FPGA (field programmable gate array) is low in development cost and high in reliability and expansibility and can be applied to various systems with requirements on independent-axis movement control, and system control can be effectively implemented.

Description

technical field [0001] The present invention relates to the field of industrial CT detection and other short-distance detection and scanning fields, in particular to a single-axis motion control system with simple structure and low cost for partial measurement of radial direction, layer thickness and interpolation in CT detection . Background technique [0002] Industrial CT is essentially a radiation detection technology, but compared with conventional radiation detection technology, it has its unique advantages: First, industrial CT can reconstruct the two-dimensional or even three-dimensional image of the object to be detected. The shape, size, internal structure, etc. are displayed intuitively through images, which overcomes the shortcomings of image information aliasing in conventional detection techniques; secondly, industrial CT has excellent spatial resolution and density resolution, and can perform qualitative and quantitative analysis of the inspected object. Anal...

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Problems solved by technology

The computer uses the bus to control the power supply, and the synchronous control of security control and data acquisition is used to detect the status signal. Both of them have low requirements on the computer, but in the integrated controller, the motion control module has a great impact on the computer. The requirements are relatively high, and the integrated system is used to complete the control at the same time, which increases the design difficulty of the control cabinet. If it is necessary to design a multi-axis motion controller, the difficulty will be further increased

At the same time, there are corresponding difficulties in the signal connection layout between the driver and the motor

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