Area Detector Protection Device with Light Curtain
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Solution Overview
Problem
Large 2D area detectors in X-ray analysis systems are vulnerable to mechanical collisions during initial adjustments, particularly when the distance between components is small, and existing collision detection systems are either ineffective or cumbersome.
Innovation Solution
A protection device with a mounting frame that covers the perimetral rim of the detector, incorporating a light curtain sensor unit and a proximity sensor unit to detect potential collisions and generate warning or stop signals to prevent damage, allowing for easy installation and integration with existing systems without hindering functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a light curtain system is used to detect collision events, then collision detection capability is improved, but device complexity increases
Solution Approach 1:
The protection device is divided into a mounting frame and separate sensor units that can be independently arranged on the frame. The light curtain system is segmented into multiple light emitters and receivers positioned at different locations, allowing modular installation and maintenance while maintaining comprehensive collision detection coverage.
Solution Approach 2:
The mounting frame serves as an intermediary structure that holds both the light curtain sensors and the area detector. This intermediate framework allows the sensor system to be mounted without direct attachment to the detector, simplifying installation and enabling easy adjustment of sensor positions for optimal collision detection.
2Area of stationary object
If the area detector is made larger to increase detection area, then detection area is improved, but vulnerability to collision increases
Solution Approach 1:
The light curtain creates an invisible protective barrier around the area detector before any physical contact can occur. When an object interrupts the light beams, a warning signal is generated that allows the system to stop movement preemptively, preventing the harmful collision before it can damage the large detector surface.
Solution Approach 2:
The protection device is mounted on the area detector during installation, establishing the collision detection system in advance. The light emitters and receivers are pre-positioned to create comprehensive coverage zones around the detector, ensuring that collision detection is already active before any experimental operations begin.
3Reliability
If a protection device is added to protect the area detector, then reliability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The mounting frame is designed with universal mounting capabilities that can accommodate different sizes and types of area detectors. The same basic protection device structure can be applied to various detector models, and the sensor units can be positioned flexibly to suit different experimental configurations, reducing the need for custom-manufactured protection systems.
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
Effectively prevents collisions by providing timely warnings or stopping movements, thus protecting the sensitive area detectors from mechanical damage while maintaining system functionality and ease of manufacturing.
Implementation Method 1
a first sensor unit arranged on the mounting frame and comprising a light curtain formed by a plurality of light emitters and associated light receivers and configured to detect and signal a potential collision of the object with the sensitive area of the area detector
Implementation Method 2
a second sensor unit arranged on the mounting frame and comprising at least one sensor configured to detect and signal a potential collision of the object at the perimetral rim surface of the area detector
Data Source
Figure 1
Figure 2a~2b
Figure 2c
AI summary
Provided is a protection device (100) and a method for protecting an area detector (200) against collision with an object (10). The protection device (100) is designed to be mountable on the area detector (200) and comprises a mounting frame (120) configured to be mounted on the area detector (200) to be protected, wherein the mounting frame (120) is designed to at least partially cover a perimetral rim surface of the area detector (200) to be protected; a first sensor unit arranged on the mounting frame (120) and comprising a light curtain (147, 148) configured to detect and signal a potential collision of the object (10) at an inner area of the area detector (200) surrounded by the mounting frame; and a second sensor unit arranged on the mounting frame (120) and comprising at least one sensor configured to detect and signal a potential collision of the object (10) at a perimetral rim area of the area detector (200). Further provided is an X-ray detector system and X-ray analysis system comprising the protection device (100).