Radiological Imaging Apparatus Waterproof Testing via Internal Air Pressure
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Solution Overview
Problem
Existing methods for testing the waterproof performance of radiological imaging apparatuses are cumbersome and time-consuming, requiring specialized equipment and long stabilization times, especially when applied to portable radiological imaging apparatuses used in medical settings.
Innovation Solution
A method involving a load application step, air pressure measurement, and determination of waterproof performance based on the pattern of air pressure change within the apparatus, using a vent hole for air flow and a simple air pressure sensor, or employing sound emission and frequency analysis with a microphone to assess waterproof integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional waterproof testing methods (using testing devices with chambers to change air pressure) are applied to radiological imaging apparatus, then waterproof performance can be tested, but the testing process becomes cumbersome and time-consuming requiring specialized equipment
Solution Approach 1:
The patent extracts the air pressure sensor from the complex external testing device and places it directly inside the radiological imaging apparatus housing. This allows the apparatus to be tested independently without requiring specialized external equipment with chambers to change atmospheric pressure. The sensor measures internal air pressure changes that occur when the apparatus is submerged, providing waterproof performance data directly at the test site.
Solution Approach 2:
The radiological imaging apparatus tests its own waterproof performance using an integrated air pressure sensor that is already present in the housing. The control unit processes the sensor data to determine whether waterproof performance is normal. This self-testing capability eliminates the need for external specialized testing devices and enables quick on-site verification during routine maintenance or inspections.
2Measurement precision
If temperature changing units and temperature sensors are used to test waterproof performance, then theoretical comparison values can be obtained, but the testing process requires long stabilization times
Solution Approach 1:
The patent removes the temperature changing unit and temperature sensor from the testing system, keeping only the air pressure sensor that is already integrated in the housing. By measuring air pressure changes directly during submersion testing, the system eliminates the lengthy temperature stabilization period required by conventional methods while still achieving accurate waterproof performance assessment through the air pressure differential caused by water pressure.
3Ease of operation
If air pressure sensors are integrated in the housing for waterproof testing, then testing can be performed at the location where the apparatus exists, but the vent hole may allow urine or water to penetrate into the housing and cause short circuits
Solution Approach 1:
The patent introduces a vent hole filter as an intermediary component between the external environment and the apparatus interior. This filter allows air pressure equalization during submersion testing while preventing water and urine from penetrating into the housing. The filter maintains the beneficial accessibility of on-site testing by keeping the vent hole open for pressure equalization while blocking harmful substances that could cause short circuits or component deterioration.
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
Enables rapid and cost-effective testing of waterproof performance without the need for specialized equipment or lengthy stabilization times, allowing for quick assessment of radiological imaging apparatuses in various settings.
Implementation Method 1
an air pressure sensor that measures the air pressure inside the housing
Implementation Method 2
the housing having a vent hole through which the air can flow in and out of the housing
Data Source
AI summary
A method of testing waterproof performance of a radiological imaging apparatus including: a sensor panel including a plurality of radiation detecting elements two-dimensionally arranged; a housing containing the sensor panel; and an air pressure measuring unit configured to measure an air pressure in the housing having a vent hole allowing the air to flow into and out of the housing, includes: a load application step of continuing to apply a load to the housing; an air pressure measurement step of measuring the air pressure in the housing with the air pressure measuring unit, the air pressure changing while the load is being applied to the housing; and a waterproof performance determination step of determining whether the waterproof performance of the radiological imaging apparatus is normal based on a pattern of change in the measured air pressure in the housing.