With the advent of the Covid-19 pandemic, the public’s interest in self-health-monitoring has increased dramatically. Covid-19 mainly affects the human respiratory system, causing shortness of breath and hypoxia. Therefore, to help avoid the rapid deterioration from asymptomatic to ‘happy’ hypoxia, home oximeters have become the focus of everyone’s attention. From wearable to portable, blood oxygen detection equipment of all kinds are becoming more and more popular.
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A 3D X-ray Analysis of the Principles and Structure of the Oximeter |
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3D X-ray observation of the internal structure of the oximeter |
X-rays have strong penetrative capabilities and will not damage the subject. By rotating the subject, it is possible to obtain tomographic, 2D X-ray images of it from multiple perspectives. We can then combine these images into a tomographic, 3D X-ray image in order to better explore the subject’s internal structure. |
Through the 3D X-ray’s non-destructive examination, you can quickly analyze the structure of the oximeter. The most common type of finger pressure photoelectric sensor—in other words, the pulse oximeter—is mainly comprised of two light-emitting diodes and a photodetector (light sensor). These two diodes emit red light (R) and infrared light (IR) respectively. The light sensor detects the difference in the absorption of red and infrared light by red blood cells in the nail bed then uses photoelectric conversion technology to determine the changes in concentration of two types of hemoglobin. This information is then analyzed and converted into blood oxygen concentration.
 （Credit：Surgicare Shoppie Pharma & Surgical Distributors） |
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 The darker color indicates hemoglobin without oxygen. These absorb more red light. |
 The brighter color in the picture indicates hemoglobin saturated with oxygen. These absorb more infrared light. |
（Credit：Surgicare Shoppie Pharma & Surgical Distributors）
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Digital Tomography Technology is the First Choice for Reverse Engineering |
In this sea of competition, every high-tech company’s research and development team is striving to take the lead. To do so, it is sometimes necessary to take a peek at the structure of competing products. 3D X-ray Computed Tomography (Micro CT) is a non-destructive form of analysis and the top choice for analyzing the structure of packaged products. It is able to provide high-resolution images of deeply embedded computer chips. It can also be used for cross-sectional quantitative analysis. These capabilities make it an indispensable analytical tool when developing limited and singular samples.
Use a 3D CT X-ray scan to view the external structure in three dimensions |
The 3D CT X-ray can also provide images of each layer of the sample’s internal structure |
Electronic products are evolving every day. Whether it is for the detection of failure locations during the development process or for the deconstruction of final products, more and more customers are discovering a need for non-destructive analysis. Besides traditional SEM and FIB milling, the 3D X-ray provides an alternative method for non-destructive analysis. It helps our customers catch potential defects and reliability problems early in the development process so that they can get ahead in this race against time and establish a blue ocean market.
