When selecting a holder, ensure that the contact surfaces are sufficiently flat to allow proper attachment of the bender. We recommend attaching the piezo bending actuator to a rigid holder (ceramic, PEEK, etc.) in order to maintain elastic compliance and avoid additional drift cause by deformation of the holder. The PB4VB2W and PB4NB2W, which come without a holder, can be mounted either by mechanical clamping or gluing. Thorlabs' piezoelectric bimorph benders are offered with or without a holder for mounting. The inactive area does not respond to the applied voltage.
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