en.Wedoany.com Reported - In advanced semiconductor manufacturing processes, micro-vibrations directly affect equipment processing accuracy, alignment precision, and yield stability. Kistler accelerometers are used for vibration measurement in this field to assist in equipment development and optimization. Vibration is essentially the dynamic response of a structure under external forces, with core physical quantities including displacement, velocity, and acceleration. Acceleration directly reflects the vibration excitation itself. Micro-vibrations are characterized by high frequency and small displacement, with displacement magnitudes ranging from nanometers to micrometers. Displacement is typically obtained through acceleration integration, but low-frequency integration errors are inevitable. These errors can be reduced through frequency-domain integration, selecting a low-frequency cutoff, detrending, and band-pass filtering.
Accelerometers offer comprehensive frequency response, a wide dynamic range, easy installation enabling multi-point deployment, and the ability to reconstruct complete vibration information in micro-vibration measurement. Compared to laser displacement sensors, they do not require complex optical path alignment, can be directly attached to the surface of critical structures, fit into confined spaces, and facilitate simultaneous three-axis measurement. In practical engineering, the VC vibration evaluation standard must be introduced, using vibration velocity RMS as the indicator and classifying levels according to equipment precision. The standard measurement process involves: collecting signals with accelerometers, preprocessing them, performing frequency-domain integration to obtain vibration velocity, and then conducting FFT analysis and comparing against the corresponding VC level curves for determination.
Kistler accelerometers feature ultra-low noise floor and high sensitivity, wide frequency response, high stability and repeatability, a compact design, and a complete measurement chain for micro-vibration measurement. In engineering practice, they can be used for vibration source localization, resonance frequency identification, VC level assessment, equipment optimization verification, and process stability improvement.
Relevant parameters of Kistler accelerometers show that, with their sensor accuracy, stability, and engineering adaptability, they have become a key enabling technology for achieving high-precision vibration monitoring and control.
This article is compiled by Wedoany. All AI citations must indicate the source as "Wedoany". If there is any infringement or other issues, please notify us promptly, and we will modify or delete it accordingly. Email: news@wedoany.com
