Hyundai Motor Company Keyence VHX-X1 Digital Microscope DVIA-TD45 (260722R4) Installation Report
Contents
Overview
A case was reported in which, while using the digital microscope (Keysight VHX-X1) on top of the DVIA-TD45 isolation platform installed in the R&D laboratory (C3-4) of Hyundai Motor Company's Namyang Research Institute, the platform began to oscillate when the magnification lens was changed and the equipment moved. As a result of checking with the customer, the floor vibration at the site was at a level that caused no major problem in equipment use even in the Active Off state.
Accordingly, rather than pushing the isolation performance to its maximum, the re-tuning was carried out with an emphasis on stability so that the platform operates stably even when the equipment on top moves or the load changes. After tuning, the system was inspected and vibration measurements were performed in the IDLE state, and the measurement data are provided as VC Curves together with reference material on the vibration level.
Vibration Isolation System Information
Model: DVIA-TD45
Serial Number: 260722R4
Engineer
Gyumin Park, Changhyeon Moon · DAEIL SYSTEMS
Tuning Date
2026.10.12
Site
Hyundai Motor Company Namyang Research Institute C3-4 R&D Lab
End User
Customer: Hyundai Motor Company
Customer Equipment
Manufacturer: Keysight
Equipment: DIGITAL MICROSCOPE
Model: VHX-X1
Vibration Specification
-
Equipment Condition
IDLE
Vibration Measurement Equipment
Measurement Equipment
Hardware: B&K Front End Type 3040-A-040
Software: B&K Pulse Labshop22 Version
Accelerometer
PCB 393B05
Vibration Measurement Setup
F Span: 200 Hz
Lines: 2400
Engineering Units: m/s
Window: Hanning
Averaging: FFT Spectrum Averaging
Conclusion
① Oscillation improvement confirmed
After the re-tuning, no oscillation was reproduced even when the equipment on top was moved during lens replacement or magnification changes.
② Vibration measurement results (IDLE state, based on VC Curves)
Vertical (Z): floor VC-A → isolation platform top VC-E (improved by 4 grades)
Front-to-back (Y): floor VC-B → isolation platform top VC-E (improved by 3 grades)
Left-to-right (X): floor VC-A → isolation platform top VC-C (improved by 2 grades)
Measurement Data Summary
| Measurement Position | Vibration Specification | Measurement Axis | Measurement Result | |
|---|---|---|---|---|
| Floor | DVIA-TD45 | |||
| 1. Floor 2. DVIA-TD45 | Refer to Section 8 | Vertical (Z-axis) | ✓ PASS | ✓ PASS |
| Left-to-right (X-axis) | ✓ PASS | ✓ PASS | ||
| Front-to-back (Y-axis) | ✓ PASS | ✓ PASS | ||
Measurement Data
Vertical (Z-axis)
Z-axis — Autospectrum
Z-axis — VC Curves
Left to Right (X-axis)
X-axis — Autospectrum
X-axis — VC Curves
Front to Back (Y-axis)
Y-axis — Autospectrum
Y-axis — VC Curves
Installation Photos
Reference
The table below classifies vibration levels based on IEST-RP-CC012.2.
¹ As measured in one-third octave bands of frequency over the frequency 8 to 80 Hz (VC-A and VC-B) or 1 to 80 Hz (VC-C through VC-G).
² The detail size refers to the width in the case of microelectronics fabrication, the particle (cell) size in the case of medical and pharmaceutical research, etc. It is to imaging associated with probe technologies, AFMs, and nanotechnology.
The information given in this table is for guidance only. In most instances, it is recommended that the advice of someone knowledgeable about applications and vibration requirements of the equipment and processes be sought.
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