Ultra-Fast Piezo Tip/Tilt Platforms

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The product You were Looking for was moved Click Here for new Address S-330 Ultra-Fast Piezo Tip/Tilt Platforms Sub-µrad Resolution For Mirrors to 50 mm Æ Closed-Loop Versions Differential Design for Excellent Temperature Stability 4 mrad Optical Beam Deflection S-330 piezo tip/tilt platforms are fast and compact tilt units, providing precise angular movements of the top platform in two orthogonal axes. The tip/tilt range is 2 mrad (equivalent to 4 mrad optical beam deflection) with sub-µrad resolution. Closed-loop versions are available for highest accuracy and repeatability. S-330 systems are designed for mirrors up to 50 mm diameter and have outstanding angular stability over a wide temperature range. To match the CTE (coefficient of thermal expansion) of Zerodur glass, the S-330 is equipped with an invar top platform. Working Principle S-330 tilt Platforms are equipped with two pairs of low-voltage piezoelectric linear drives (0 to 100 V) operating as a unit in push/pull mode ( figure page see link for schematic diagram). The stainless steel case is equipped with an integrated, FEA-modeled (finite element analysis) circular flexure featuring zero stiction, zero friction and exceptional guiding precision. In open-loop operation, the platform angle roughly corresponds to the drive voltage (see link in the "Tutorial" section for behavior of open-loop piezos). The open-loop model is ideal for applications where the position is controlled by an external loop, based on data provided by a sensor (e.g. PSD quad cell, CCD chip, ...). The closed-loop version is equipped with two pairs (one per axis) of strain gauge sensors operated in a bridge circuit for ultra-high resolution and angular stability. They provide sub-µrad resolution and repeatability (with PI control electronics). Image stabilization Laser beam stabilization Beam switching Adaptive optics systems Laser beam steering & scanning Correction of polygon scanner errors. S-330 Tip/Tilt Platform S-330 dimensions (in mm) S-330.2SL cable configuration S-330 schematic diagram

Technical Data

Models	S-330.30	S-330.2SL	Units	Notes see link
Active axes	qX,qY	qX,qY
Open-loop tilt angle @ 0 to 100 V	2 (±1)*	2 (±1)*	mrad ±20%	A2
Closed-loop tilt angle ³	-	±1	mrad	A3
Integrated feedback sensor	-	4 x strain gauge		B
Closed-loop / open-loop ** resolution £	- / 0.05	0.1 / 0.05	µrad	C1
Closed-loop linearity (typ.)	-	±0.2	%
Full-range repeatability (typ.)	-	±2	µrad	C3
Electrical capacitance	3.6 / axis	3.6 / axis	µF ±20%	F1
*** Dynamic operating current coefficient (DOCC)	0.22 / axis	0.22 / axis	µA/(Hz x µrad)	F2
Resonant frequency (f0) without mirror	3.3	3.3	kHz ±20%	G2
Resonant frequency w/ Æ 25 x 8 mm glass mirror	2.4	2.4	kHz ±20%	G3
Distance, pivot point to platform surface (T)	6	6	mm
Platform moment of inertia	1530	1530	g·mm2
Operating temperature range	- 20 to 80	- 20 to 80	°C	H2
Voltage connection	3 x VL, 2 m cable	3 x VL, 2 m cable		J1
Sensor connection	-	1 x L, 2 m cable		J2
Weight (w/o cables)	200	200	g ±5%
Material (case/platform)	N-S / I	N-S / I		L
Recommended amplifier/controller (codes explained see link)	G, C	H, D
* Mechanical tilt, optial beam deflection is twice as large. Special version with 10 mrad a vaillable on request. ** Resolution of PZT tip/tilt platforms is not limited by friction or stiction. Noise equivalent motion with E-503 amplifier. *** -Dynamic Operating Current Coefficient in µA per hertz and µrad. Example: Sinusoidal scan of 100 µrad at 10 Hz requires approximately 0.22 mA drive current.

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S-330.2SL
q_Xq_Y Piezo Tip/Tilt Platform 2 mrad, Closed-Loop

S-330.30
q_Xq_Y Piezo Tip/Tilt Platform 2 mrad

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