WNP22 series piezoelectric deflector mirrors are one-dimensional θ X axis deflector/fast reflector, flexible hinge steering design has zero friction and static resistance, excellent steering accuracy, providing nanoradian resolution and excellent positioning stability. Beam deflection ranges up to 8mrad and extremely fast response times (milliseconds to microseconds) are ideal for dynamic operations (such as tracking, scanning, drift and vibration cancellation) and static positioning of optics and samples.
The characteristics of
â—Low theta x - d deflection
â— Maximum deflection Angle 4MRAD
â— Submillisecond response time
â— High precision of closed loop positioning
Typical applications
â— Image processing and stabilization
â— Laser scanning
â— Interspaced scan, jitter
â— Optical filter/switch
â— Beam deflection
â— Sample testing
Structure principle
The platform is supported by a hinge and propelled by a linear piezoelectric actuator. The hinge determines the pivot point and acts as a preload for the piezoelectric actuator. The advantages of single hinge single actuator design are simple structure, compact size and high cost performance. If the ambient temperature varies greatly during Angle deflection, differential drive piezoelectric deflector is recommended.
Small volume, high dynamic, open and closed loop optional
Piezoelectric drive pitch/deflection (tilt/fast mirror, mirror, light beam deflection, phase shifter) provides higher than voice coil motor products acceleration and bandwidth, θx axis deflection range is 4 mrad, deflection resolution of 0.1 mu rad, open loop closed loop optional, closed loop sensor, including strain sensor and capacitance sensor, a higher positioning accuracy can be obtained. Ultra-small size design, with very fast response speed, can be loaded with 015mm lens to achieve a step time of 0.8ms.
|
Model |
End with S- closed loop
End with K- open loop |
WNP22.U3S
WNP22.U3K |
Unit |
|
Freedom of motion θx |
|
Nominal travel range (0~120V) |
2.5(≈ 520 seconds) |
mrad±20% |
|
Maximum travel range (-20~150V) |
4(≈830 seconds) |
mrad±20% |
|
Sensor Type |
SGS/- |
|
|
Closed/open loop resolution |
(≈0.06 seconds）0.3/0.1(≈0.02 seconds) |
urad |
|
Closed loop linearity |
0.2/- |
%F.S. |
|
Closed loop repeated positioning accuracy |
0.15/- |
%F.S. |
|
No load resonant frequency |
3 |
kHz±20% |
|
Closed/open loop no-load step time |
3/0.8 |
ms±20% |
|
A closed-loop light
Working frequency |
10% of the trip |
100 |
Hz±20% |
|
100% of the trip |
40 |
|
The electrostatic capacity |
1.8 |
uF±20% |
|
The material |
steel |
|
|
The weight of the |
80 |
g±5% |
|
