Optical Scanners: 6200H Moving Magnet Closed Loop Galvanometer Based Optical Scanner

The 6200H series of closed loop galvanometers combines Cambridge Technology's moving magnet actuator technology and our innovative patented advanced optical position detector design. This combination offers the highest positioning speed and precision accuracy in compact, lower cost closed loop galvanometers. The 6200H series scanning systems can be designed and optimized for speed, size, cost and accuracy with typical beam diameters in the 3 to 30 mm ranges.

Galvanometer Based Optical Scanner: 6200H Moving Magnet Closed Loop

Shown here in A connecter version with 3mm mirror.

Galvanometer Specifications

Cambridge Technology brings you the smallest galvanometer available on the market today. Designed for applications where size is of the greatest importance the 6200H compact footprint allows the 6200H to be easily incorporated into any system without compromising space. Our 6200H can be designed and optimized for speed, size, cost and accuracy with typical beam diameters of 3mm or smaller.

Designed for applications where size is of the greatest importance the 6200H compact footprint allows the 6200H to be easily incorporated into any system without compromising space. Our 6200H can be designed and optimized for speed, size, cost and accuracy with typical beam diameters of 3mm, 4mm, 5mm, 6mm, and 7mm.

Mechanical Specifications

Rated Angular Excursion:		40°
Rotor Inertia:		0.013 gm cm², +/-10%
Torque Constant:		1.20x10⁴ dyne cm/amp, +/-10%
Maximum Rotor Temperature:		110°C
Thermal Resistance (Rotor to Case):		3.8°C/Watt, Max

Electrical Specifications/Drive Mechanism

Coil Resistance:		2.14 Ohms, +/-10%
Coil Inductance:		52 µH, +/-10%
Back EMF Voltage:		20.9 µV/degree/sec, +/-10%
RMS Current:		2.3 Amperes at Tcase of 50°C, Max
Peak Current:		6 Amperes, Max
Small Angle Step Response Time:		130 µs with 3mm Y mirror, settled to 99%

Position Detector

Linearity:		99.9%, Minimum, over 20 degrees, 99.5%, Typical, over 40 degrees
Scale Drift:		50 PPM/°C, Maximum
Zero Drift:		15 µrad/°C, Maximum
Repeatability, Short Term:		8 microradians
Output Signal, Common Mode:		155 µA with AGC current of 30mA, +/-20%
Output Signal, Differential Mode:		12 µA/°, at common mode current of 155 µA, +/-20%

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