X-ray Grid Oscillation Timing via Switch Unit
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Solution Overview
Problem
Existing X-ray image systems face challenges in triggering X-ray emission at the precise middle of the oscillation period of the grid frame when using anti-scatter grids of different weights, leading to image distortion and increased production costs due to the need for additional switches.
Innovation Solution
A switch unit is implemented that detects the insertion of an anti-scatter grid and triggers X-ray emission at a predeterminable activation time, using a common switching element and a notched slide mechanism to ensure emission is triggered in the middle of the oscillation period, regardless of grid weight, and a light barrier for cost-effective operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a common switching element is used to detect anti-scatter grid insertion and trigger X-ray emission, then production costs are reduced, but the precision of triggering X-ray emission at the middle of oscillation period may be compromised
Solution Approach 1:
The patent applies the universality principle by designing a switch unit that performs multiple functions: it detects both the insertion of the anti-scatter grid and the timing of the oscillation period, and triggers the X-ray emission. This multi-functional switch unit eliminates the need for separate switches, reducing production costs while maintaining the precision required for triggering at the middle of the oscillation period through intelligent control logic
2Manufacturing precision
If the grid frame is oscillated to reduce distorting stripes, then image quality is improved, but image blurring may occur when no anti-scatter grid is inserted
Solution Approach 1:
The patent applies the dynamics principle by making the oscillation of the grid frame conditional rather than fixed. The control unit dynamically adjusts the oscillation state based on whether an anti-scatter grid is detected: when a grid is inserted, the grid frame oscillates to reduce distorting stripes; when no grid is inserted, the oscillation is suppressed to prevent image blurring. This dynamic adaptation ensures optimal image quality under different operating conditions
3Ease of operation
If the activation time is fixed, then the system operation is simplified, but the X-ray emission may not be triggered precisely in the middle of oscillation period for grids of different weights
Solution Approach 1:
The patent applies the feedback principle by using the switch unit to detect the position and state of the grid frame during oscillation. The control unit receives feedback signals from the switch unit about the oscillation phase and uses this information to precisely trigger the X-ray emission at the middle of the oscillation period. This feedback mechanism allows the system to maintain timing accuracy despite variations in grid weight, while the overall operation remains simplified through automated control
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces image distortion by ensuring X-ray emission is synchronized with the grid's oscillation period, even with different weight anti-scatter grids, and decreases production costs by eliminating the need for separate switches.
Implementation Method 1
a spring device (11), in this case in the form of leaf springs, which serves to move the notched slide (2) back into the home position when the anti-scatter grid (3) is removed from the grid frame (1)
Implementation Method 2
The notched slide (2) with the switching flag (5) arranged on the one longitudinal side (4) and the light barrier (8) are arranged in relation to each other such that the light barrier (8) may be interrupted or released by the notches (6, 7) of the switching flag (5)
Data Source
AI summary
An arrangement for an X-ray image system with a grid frame arranged to enable the grid frame to oscillate is provided. The arrangement includes a switch unit, with which an anti-scatter grid inserted into the grid frame may be detected. An X-ray emission is only triggered by the switch unit at a predeterminable activation time if an anti-scatter grid is inserted.