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Magnetic fast steering mirror M-FSM62

Magnetic fast steering mirror M-FSM62

Product catalog summary

Description
The Magnetic Fast Steering Mirror (M-FSM62) is designed for optical pointing applications, offering larger motion capabilities than piezo FSMs while maintaining high resolution and large bandwidth. It includes a mirror, flexure bearing, actuators, and Eddy Current positioning Sensors (ECP). The Moving Iron Control Actuator (MICA™) ensures dynamic strokes with minimal Joule heating, and frictionless flexure bearings provide high resolution and infinite lifetime. The system uses ECS45 and MCSA480 electronics for sensing, driving, and controlling, achieving a Technology Readiness Level (TRL) of 5.

Applications
The M-FSM62 is suitable for Free Space Optic (FSO) communication links, laser applications, and optical imaging.

Specifications

Angular stroke max: +/- 2° (34 mrad) with a tolerance of +/- 10%
Resolution: 20 µrad with MCSA480 & ECS45
1st resonance frequency: 93 Hz with a SiC mirror Ø31mm
Mirror full stroke open loop bandwidth: 40 Hz (without heating), 200 Hz (with heating for max 10min)
Max driving voltage: +/- 48 V for dynamic operation beyond resonance frequency
Max driving current: +/- 10 A for dynamic operation beyond resonance frequency
Resistance @ 20°C per axis: 0.5 Ohm
Inductance @ 20°C per axis: 0.64 mH
Dimensions: Ø62 x H56 mm
Moving part weight: <17 g
Total weight: 400 g
Mirror size: Ø31 mm SiC mirror with a clear aperture of 27 mm

Performance Example
At a 20Hz sinewave operating point, the M-FSM62 has the following characteristics:

Voltage RMS: 0.8 V
Current RMS: 1.2 A
Angular stroke (0-pk): 20 mrad
Electrical power: 0.5 W
Accuracy in closed loop bandwidth/Linearity: 40 µrad with MCSA480 & ECS45
Accuracy in closed loop bandwidth/Thermal Drift: 2 µrad/°C with MCSA480 & ECS45

Catalog excerpts

copyright © cedrat technologies i 07/2020 www.cedrat-technologies.com | [email protected] CEDRAT ( T TECHNOLOGIES \ | Innovation in Mechatronics DESCRIPTION Magnetic FSM for optical pointing with larger motion than piezo FSM while keeping high resolution and large bandwidth. The M-FSM62 mechanism volume contains the mirror, its flexure bearing, the actuators and the Eddy Current positioning Sensors (ECP). High performance Moving Iron Control Actuator (MICA™) allows to perform the dynamic strokes with low Joule heating. Frictionless flexure bearings allow to achieve both high resolution and infinite life time. Dedicated electronics for sensing, driving and controlling are respectively the ECS45 and MCSA480 for lab testing. The M-FSM62 has a TRL 5. APPLICATIONS Typical applications are Free Space Optic (FSO) communication links, laser applications, optical imaging.. Magnetic Fast Steering Mirror M-FSM62 Magnetic Fast Steering Mirror M-FSM62 (with 031 mm mirror) > Dimensional characteristics Dimensions CEDRAT TECHNOLOGIES • 59 Chemin du Vieux Chene • Inovallee • 38246 MEYLAN Cedex France • Tel. : +33 (0)4 56 58 04 00

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copyright © cedrat technologies i 07/2020 www.cedrat-technologies.com | [email protected] CEDRAT ( T TECHNOLOGIES \ | Innovation in Mechatronics > Example of operating point @20Hz sinewave Magnetic Fast Steering Mirror M-FSM62 Voltage RMS Diagram Position CEDRAT TECHNOLOGIES • 59 Chemin du Vieux Chene • Inovallee • 38246 MEYLAN Cedex France • Tel. : +33 (0)4 56 58 04 00

Open the catalog to page 2

Magnetic fast steering mirror M-FSM62

Magnetic fast steering mirror M-FSM62

Catalog excerpts

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