Description

The FGS family of goniometer stages provides angular tip and/or tilt motion about a pivot point above the stage. The two models are easily combined into a tip/tilt assembly with motion about a common pivot point. Each FG stages utilizes and HR4 motor and precision crossed roller bearings with an optical position sensor. Stages can be used independently or in pairs, along with combining to other linear or rotary stages.

Mechanical Characteristics

Model	FGS013S125	FGS013S160
Stage Plate Material	Aluminum- Black Anodized
Motor	HR4 Piezo, ultrasonic standing wave
Bearing Type	Precision crossed rollers with anti-migration device
Encoder	Linear optical encoder with gold tape scale
Cable lengths (m)	3m
MTBF (hours)	30,000
Stage Mass	773g	842g
Moving Mass	461g	423g
RoSH	Complaint
Vacuum Compatible Options	High Vacuum (to 10-7 Torr) / UHV (to 10-10 Torr) available

Performance Specifications

Model		FGS013S125	FGS013S160
Travel Range (deg)		±10°	±10°
Encoder Resolution	Standard	0.171 arc sec	0.134 arc sec
	Optional	0.0171 arc sec	0.0134 arc sec
Bi-directional Repeatability	Standard	2 arc sec	2 arc sec
	Optional	0.2 arc sec	0.2 arc sec
Minimum Incremental Move Convergence (encoder & control dependent)	AC Mode	0.165 arc sec	0.128 arc sec
	UHR Mode	0.0082 arc sec	0.0064 arc sec
	DC Mode	0.000165 arc sec	0.000129 arc sec
Maximum Velocity (deg/sec)		110 deg/sec	85 deg/sec
Load Capacity (kg)		3kg	3kg
Inertial Capacity (kg.m²)		0.0512 kg.m²	0.083 kg.m²
Dynamic Stall Force		2040Nm	2600Nm
Motor Stiffness		0.045 N*m/µrad	0.074 N*m/µrad
Holding force without power		1836Nm	2340Nm