VIBRATION CONTROL Magnetic Field Cancellation ULTRA PRECISION TECHNOLOGIES www.techmfg.com • 978-532-6330 • 800-542-9725 (Toll Free) • Fax:978-531-8682 • [email protected]

Magnitude of external sensor signal is measured against excitation field strength of external driving coil. 3-axial external sensor consists of 3 orthogonal coils around a 12 x 12 x 24 in. volume. Cage dimensions are 60 x 60 x 84 in. Magnitude of external sensor signal is measured against external  excitation currents, when external & system’s sensors are co-located together VIBRATION CONTROL Magnetic Field Cancellation Stainless steel struts are modular and interchangeable and made in a variety of lengths to accommodate virtually every commercial SEM. Plot 1. Magnitude of external sensor signal...

VIBRATION CONTROL ULTRA PRECISION TECHNOLOGIES Column-Mounted Floor-Mounted Helmholtz Coils Helmholtz Coils Helmholtz Coils on Leg Frame Column-mounted Helmholtz Coils are Floor-mounted Helmholtz Coils may be used Helmholtz Coils may be mounted readily adapted to SEM columns but for both SEMs and TEMs. on a TMC leg frame. Wall-Mounted Helmholtz Coils Wall-mounted coils are a practical alternative to column and floor-mounted coils for TEMs and SEMs installed near the center of a room. WWW.techmfg.com • 978-532-6330 • 800-542-9725 (Toll Free) • Fax:978-531-8682 • [email protected]