The Way of Shock Absorption of Precision Instruments: The Limitations of Gas Springs and the Road to Innovation
¶1 258 words
In this era of rapid development of science and technology, precision instruments and equipment undoubtedly play an increasingly important role. From advanced electron beam exposure systems, to nanoscale lithography processes, to high-precision measuring instruments, they all place extremely high demands on vibration damping performance. After all, even the slightest vibration can lead to deviations in the measurement data, which in turn can affect the accuracy of the entire system. How to provide an ideal shock-absorbing environment for these precision equipment has become a topic that the industry continues to explore.
¶2 272 words
Traditionally, air spring shock absorbers have been the mainstream choice in the industrial sector. It uses the principle of gas compression to absorb vibration energy, and has a good vibration damping effect. When we set our sights on precision instruments, the air spring shock absorbers seem to be falling short. The reason for this is that the gas itself is compressible, which can cause small displacement changes. For processes such as electron beam exposure and lithography, which require extreme precision, this small displacement can cause significant deviations and affect the performance of the entire system.
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Another concern is that air spring shock absorbers do not provide ideal isolation for high-frequency vibrations. During the operation of precision equipment, various frequencies of vibration and noise will be generated, while air spring shock absorbers are mainly aimed at low-frequency vibration, and the isolation performance of high-frequency parts is limited. This means that even with air spring shock absorbers, the effects of high-frequency vibrations on precision instruments cannot be completely eliminated.
¶4 278 words
Faced with these challenges, the industry began to explore new solutions. Among them, the gas-liquid dual-purpose shock absorption system has attracted much attention. This system combines the advantages of two different media, gas and liquid, taking advantage of the compressibility of the gas and the incompressibility of the liquid, resulting in better vibration damping. In the case of low-frequency vibrations, the gas section absorbs energy well, while in the case of high-frequency vibrations, the liquid section provides effective isolation. Through this innovative design, the gas-liquid damping system is able to meet the needs of precision instruments for vibration damping over a wide frequency range.
¶5 291 words
In addition to the innovation of the shock absorber itself, in the design and manufacturing process of precision instruments and equipment, it is also necessary to take a series of measures such as vibration reduction and vibration isolation to form an overall solution with the shock absorber. For example, damping pads can be installed on the body of the device to absorb vibrations using a combination of different materials, vibration isolation bases can be built around the equipment to isolate the source of vibration from precision instruments, and vibration damping modifications can even be carried out throughout the laboratory or production floor to provide an ideal working environment for precision instruments.
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It can be seen that in order to truly meet the demand for high precision of precision instruments, it is far from enough to rely solely on air spring shock absorbers. Instead, we need to take a systematic approach and combine a variety of technical means such as shock absorbers, damping pads, and vibration isolation bases to form a complete solution. Only in this way can the vibration and noise in various frequency ranges be eliminated to the greatest extent and provide a stable and reliable working environment for precision instruments.
¶7 291 words
In the pursuit of high precision, we also have to weigh cost and practicality. After all, an overly expensive shock absorption solution can affect the popularity and adoption of precision instruments. The industry is constantly looking for more cost-effective and innovative solutions to achieve a balance between high accuracy and cost-effectiveness. For example, the use of new materials and structural design to develop better performance and more affordable shock absorbers, or through intelligent control, the adaptive adjustment of the shock absorption system to improve efficiency and reduce energy consumption.
¶8 279 words
The demand for shock absorption performance in precision instruments and equipment is constantly increasing, which has brought a huge impetus to the innovation and development of related technologies. Although the air spring shock absorber can play a good role in the general industrial field, it has shown certain limitations in the field of precision instruments. In the future, we need more diversified shock absorption solutions that combine the advantages of different technologies to truly meet the strict requirements of precision instruments for high precision.
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This process is inseparable from the tireless efforts of researchers and engineers. They will continue to explore new materials, new structural designs, and develop more advanced and efficient shock absorption technologies. At the same time, the introduction of emerging technologies such as intelligent control and big data analysis is also expected to bring new development opportunities to the field of shock absorption. I believe that in the near future, we will be able to see more innovative shock absorption solutions come out, which will give wings to the development of precision instruments.
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