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2. Orthogonal two-stage amplifier
In what follows, we'll take a look at a symmetrical two-stage passive mechanical amplifier that delivers high gains, is easy to adapt and involves virtually only rotoidal joints.
2.1 Principle model of the mechanism
The amplifier is shown in figure 17 . It's a plane articulated mechanism with 8 bars. It can also be said to be the assembly of three kneepads with common elements:
the first knee brace consists of the bars S 1 , S 2 and
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Orthogonal two-stage amplifier
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