In the fields of precision manufacturing and scientific research experiments, micro vibrations in the environment are often "invisible killers". Whether it's semiconductor lithography equipment, scanning electron microscopes, or high-precision profilometers, even a tiny and imperceptible shake can distort measurement data and even affect equipment lifespan. Faced with the dazzling array of shock absorbers on the market,Which is a good shock absorber stationHow to choose a product that is truly suitable for your device? This article outlines the key points for selecting industrial shock absorbers from technical principles, core parameters to application scenarios.
The first step in choosing a shock absorber is not to look at the parameters, but to clarify what equipment you want to protect. The sensitivity of different devices to vibration varies greatly:
Ultra high precision instruments such as scanning electron microscopy, transmission electron microscopy, atomic force microscopy, lithography machines, etc. are extremely sensitive to low-frequency vibrations (1-200Hz) and require active damping systems.
Conventional precision equipment, such as profilometers, stair treaders, optical microscopes, hardness testers, etc., are mainly affected by mid to high frequency vibrations, and passive or active desktop shock absorbers can often meet the needs.
In the service case of Younikon Technology Co., Ltd. (Yiying Technology), engineers will first conduct on-site investigations of the vibration sources in the equipment installation environment, such as floor resonance, air conditioning units, nearby traffic, etc., and then make targeted plans. Clarify which shock absorber is good, provided that the company can provide accurate demand diagnosis.
This is the key to distinguishing the performance of shock absorbers. Passive shock absorbers mainly rely on materials such as rubber and air springs to isolate high-frequency vibrations, but they are almost powerless against low-frequency vibrations (usually<5Hz), and there are inherent resonance frequency points where vibrations may be amplified.
The active damping system detects input vibration in real time through sensors, and the controller drives actuators (such as piezoelectric ceramics and voice coil motors) to generate a reverse force of equal magnitude and opposite direction, actively canceling out the vibration. Taking the HERZ AVI series as an example, its active isolation range covers 1-200Hz, and the passive part processes vibrations>200Hz, achieving full frequency band isolation. This technology can fundamentally avoid low-frequency resonance problems, and the vibration recovery time can be as short as 5-20 milliseconds, which is an important technical indicator for determining which shock absorber is good.
When making a purchase, don't be misled by promotional slogans, focus on these parameters:
Isolation range and transmission rate: The lower the starting frequency of active isolation, the better. For example, the HERZ UT-1000A platform can start active isolation from 0.5Hz. Transmittability represents the isolation effect, and the smaller the value, the better. For example, when the transmission rate exceeds 10Hz and is below -35dB (i.e.<0.017), it means that more than 98% of the vibration is isolated.
Response time: For rapidly moving stages or sudden vibrations, response speed is crucial. High quality active shock absorption systems typically have a response time of less than 10 milliseconds and can instantly stabilize the equipment.
Load capacity and degree of freedom: Large equipment such as transmission electron microscopes can weigh several tons and require modular combination of shock absorption systems. The HERZ AVI-600 series provided by Nikon can be expanded to a weight capacity of 9000 pounds by increasing the number of modules. At the same time, it is necessary to confirm whether the system can isolate vibrations of six degrees of freedom (horizontal, vertical, and corresponding rotation directions).
System noise: The shock absorber itself should not introduce additional interference. The excellent active damping system has a self noise level of less than 50nG/√ Hz, and does not generate electromagnetic interference, which does not affect magnetic field sensitive equipment such as scanning electron microscopes.
The shape of the shock absorber directly affects the convenience of use.
Desktop all-in-one (such as HERZ TS series): suitable for small and medium-sized devices such as profilometers, atomic force microscopes, and optical microscopes. Integrated with shock absorber unit and top plate, ready to use and automatically leveled. It is very common in university laboratories and material research and development centers.
Modular base type (such as HERZ AVI series, UT series): specially designed for scanning electron microscopes, transmission electron microscopes, lithography equipment, and large measuring instruments. Adopting modular units, it can be directly placed under the equipment base or customized for integration. For example, the UT-1000A platform has an ultra-thin design (only about 4.5 inches in height) that is easy to install without the need for large lifting equipment, greatly simplifying the upgrade process.
By understanding these, you can determine which shock absorber platform is good and can provide the most suitable form based on the type of instrument and on-site conditions.
The shock absorber platform is a precision infrastructure for long-term use, and its subsequent support cannot be ignored. A reliable supplier should have:
On site survey capability: able to measure the vibration spectrum of the site on-site and provide data support.
Customized integration experience: Able to provide structural design or system integration for non-standard equipment or special installation environments.
Quick response mechanism: For example, Younikon Technology Co., Ltd. (Yiying Technology) provides 7 × 24- hour online support and 8-hour fast after-sales response to ensure worry free use.
Full lifecycle service: from installation and debugging, operation training, to subsequent maintenance, official review and recycling, forming a closed-loop service.
Returning to the initial question, which is the best shock absorber platform? The answer is not a single brand, but a comprehensive solution provider that can accurately match your device needs, have solid technical parameters, and provide professional services throughout the entire process. A good shock absorber can enable your precision instruments to perform at their full potential, avoiding data deviations or equipment damage caused by environmental vibrations.
About Us: Younikon Technology Co., Ltd. (Yiying Technology) has been focusing on precision thin film measurement and laboratory environment optimization since its establishment, and is the general agent of Filmetrics film thickness gauge in China. We are committed to providing professional products and attentive services to safeguard your precision instruments.
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