Vibration Isolation Case Studies

Li Auto (Shanghai) ZEISS FE-SEM Sigma 360 DVIA-ULF700 installation and vibration tuning report.

DVIA-ULF700 installation report in Ho Chi Minh for a Thermo Fisher SEM Prisma system (isolator serial 251023R8). Measurement summary covers floor versus DVIA-ULF700 VC levels with vertical and horizontal axes (autospectrum and transmissibility curves); onsite SEM photo included. Reference uses the generic VC criteria table.

DVIA-ULF700 (serial 250902R6) tuning and vibration measurements for a TESCAN CLARA SEM in Beijing under Northern Huachuang. Tuned 2025-12-10; report written 2025-12-11. Covers cooler-on-platform coupling risks, publishes the tuning-request UI capture plus VC / autospectrum / transmissibility plots in three axes. Site photos not permitted.

69 Ministry of Defense TFS Prisma Installation

DVIA-ULF1000 (S/N 250813R2) installation and 6th tuning at Huasheng Lianying Vibration Damping Platform, Wuxi, China, for YIDONG FE-SEM YF-1801. After relocating units under the level feet and re-tuning, vertical / left-to-right / front-to-back VC, autospectrum, and transmissibility plots from the UI program are published with equipment photo. Decorative header image omitted; Reference uses the standard VC criteria table (no EMF upload).

December 2025 tuning report for YIDONG FE-SEM (YF-1801): image instability mitigation, pump-related resonance findings, VC / autospectrum / transmissibility plots on DVIA-ULF1000 (S/N 250813R2), Wuxi.