X-ray Inspection Apparatus with Movable Source and Detector for Calibration
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Solution Overview
Problem
Conventional X-ray transmission inspection apparatuses require lengthy interruptions for calibration and adjustment, especially when inspecting belt-shaped samples, as they need to replace the sample with a standard sample, disrupting continuous inspection processes.
Innovation Solution
The apparatus includes a movable arrangement changing mechanism that allows the X-ray source and detector to switch between inspecting the sample and a standard sample without interrupting the inspection line, enabling continuous operation and simultaneous or individual adjustment of multiple inspection units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the sample is replaced with a standard sample for calibration, then the adjustment can be performed, but the inspection operation must be interrupted for a long time
Solution Approach 1:
The system is divided into separate functional components: a sample inspection region and a standard sample calibration region. The X-ray source and detector can independently inspect samples or switch to calibrate using the standard sample, allowing calibration without interrupting sample inspection flow
Solution Approach 2:
A standard sample is introduced as an intermediary calibration object with known properties. This standard sample serves as a mediator between the X-ray inspection system and the calibration process, enabling adjustment without removing or interrupting the actual sample inspection
2Productivity
If the inspection is performed while the sample flows continuously by roll-to-roll method, then the productivity is maintained, but it is difficult to perform the inspection by interrupting the inspection and replacing the sample with the standard sample
Solution Approach 1:
The system employs dynamic switching capability where the X-ray source and detector can move between inspecting the continuous sample flow and inspecting the standard sample for calibration. This dynamic reconfiguration allows calibration access without stopping the roll-to-roll sample production
Solution Approach 2:
A standard sample is pre-positioned in the inspection path at a location where it can be accessed for calibration without interrupting the continuous sample flow. The system is prepared in advance with this standard sample ready for quick calibration switching
3Productivity
If the X-ray source and detector are arranged to face a moving sample, then the continuous inspection is enabled, but the operation of replacing the sample with the standard sample becomes necessary
Solution Approach 1:
A standard sample that replicates the physical and geometric properties of the actual sample is used for calibration. This standard sample copy has known characteristics that allow the X-ray system to be calibrated without needing to physically replace the moving sample
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 allows for easy and uninterrupted calibration and adjustment of the X-ray source and detector, maintaining stable and accurate measurements without removing the sample from the inspection line, even for multiple or long samples, and enables inspection of belt-shaped samples under the same conditions.
Implementation Method 1
an X-ray transmission image acquired by irradiating X-rays to the sample is inspected
Implementation Method 2
an X-ray detector such as a line sensor are arranged to face each other with a sample moving in one direction placed therebetween
Data Source
AI summary
An X-ray transmission inspection apparatus capable of easily performing the adjustment by a standard sample is provided. The apparatus is provided with an X-ray source; an X-ray detector; a standard sample moving mechanism configured to move a standard sample placed in a different position from that of a sample; and an arrangement changing mechanism configured to be in a such a manner that the X-ray source and the X-ray detector, and the sample and the standard sample are movable relative to each other, and configured to change an arrangement state from one arrangement state in which the X-ray source and the X-ray detector face the sample to the other arrangement state in which the X-ray source and the X-ray detector face the standard sample that is moved by the standard sample moving mechanism.