Check fixture and method for regulating SPECT/CT (single photon emission computed tomography/ computed tomography) bimodal biological imaging system by using same

Abstract

The invention relates to a check fixture and a method for regulating an SPECT / CT (single photon emission computed tomography / computed tomography) bimodal biological imaging system by using the same, wherein the check fixture comprises a taper shank check rod and a size block which is sleeved on the outer cylindrical surface of the taper shank check rod and is in sliding match with the taper shank check rod; at least one end of the taper shank check rod is provided with a Mohs taper shank; the size block is provided with a through hole; the central axis of the through hole is vertical to and intersects with the central axis of the taper shank check rod; the taper shank check rod is provided with a trough hole corresponding to the through hole; and the check fixture also comprises two diaphragms which are arranged vertical to the central axis of the through hole at an interval, and the centers of the two diaphragms are both coincide with the axis. The check fixture has the advantages of simple structure, and flexibility and convenience in operation, has a plurality of functions of concentricity, parallelism, verticality measurement and the like; and the detection and adjustment of items such as the concentricity, parallelism, verticality of the bimodal biological imaging system can be realized by adopting the method, the operation is simple, and the reliability is high.

Description

technical field [0001] The invention relates to a multi-purpose detection and correction tool, which can accurately measure a variety of shape accuracy such as concentricity, perpendicularity, parallelism, etc., and is especially suitable for SPECT / CT dual-mode biological imaging systems. The assembly, correction and hardware of the system with a large fixed axis rotating part and the shape and position accuracy of the rotating part and the relative position accuracy between the rotating part and the functional parts installed on it, and between different functional parts require many items and high requirements Adjustment. Background technique [0002] Generally speaking, there are special inspection tools for measuring various shape and position accuracy. When it is necessary to measure various shape and position accuracy, multiple inspection tools are often required to be used together. Not only is the process cumbersome, but also the cost of supporting tooling is high. ...

AI Technical Summary

Problems solved by technology

It can be seen that the system not only requires many items to be detected or adjusted, but also requires extremely high precision. Using existing technical measurement tools and corresponding detection methods, it is easy to introduce large measurement errors, and the measurement tools are required to be complete. , high cost and complex operation

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