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Technical Background

TMC's Technical Background - 21701 11

Directly Applied Noise Force FN Isolated Payload (M) Spring(k)Damper (b) Earth Ground Motion Xe Payload Motion Xp

(

ω ( 222 Test Mass 1 +1 –
Q ω T ≡ X
p Feedforward Input =

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2

(

Pos.SumSumForceFilterFilter X
2 ( ( e ω +
ω ω Q ω Isolated Payload Ground Motion Sensor X1++++ X2 Ks Seismometer InputOutput+- Sum G Earth H Borderline COM H Two-ChamberIsolators W UnstableStable Technical Manufacturing Corporation •978-532-6330 • 800-542-9725 (Toll Free) • Fax: 978-531-8682 • sales@techmfg.com • www.techmfg.com 97