Galvo Series: Closed Loop with Moving Coil Capacitive Front End Position Detector

Galvanometer Models: 6350 | 6400 | 6450 | 6650 | 6900

The Moving Coil Closed Loop Galvanometer series combines Cambridge Technology's moving coil actuator technology and our patented moving dielectric capacitive position detector design. This combination offers the highest position accuracy and repeatability of any galvanometer based scanner design. These scanning systems can be designed and optimized for speed, size, cost and accuracy with typical beam diameters of 5 mm - 75 mm.

Features

• Highest Position Accuracy and Repeatability: The moving coil's superior positioning accuracy comes from the actuator design configuration and patented position detector design. The scanner's front end position detector provides the closest coupling between the mirror and the position detector for the truest positioning. CTI's moving dielectric capacitive position detector is designed to provide superior repeatability and positioning linearity over time and temperature. This capacitive detector, with CTI's 671 servo driver, reduces the optical positioning error, thus allowing single microradian level positioning performance as low as 1.5 microradians.
• Galvo Speeds and Step Response Times:  The high torque to inertia ratio of the moving coil design allows for the high positioning speed of the galvo series. The intense magnetic field strength of state of the art neodymium iron boron magnets combined with the low rotor inertia of the moving coil design gives the moving coil galvo very high torque to inertia ratio for high peak and RMS accelerations with excellent wobble and jitter performance. Our advanced actuator design coupled with our 671 servo drivers, allow the moving coil galvos to reach speeds up to 1 kHz with step response times in the 1.5 millisecond range for small angle movements.
• High System Performance and Reliability Over Time: Superior product lifetime and reliability result from disciplined design technique, the best in bearing technology and quality manufacturing processes and workmanship. Cambridge Technology's high standards of manufacturing quality guarantees the performance consistency that you need to design the high quality systems demanded in today's competitive marketplace.

Supporting Products

CTI provides supporting products that include servo drivers , mirrors and XY mounts. Each are specifically designed to maximize the systems performance and increase user capabilities.

Contact a sales engineer or CTI trained worldwide field representatives today if you have additional questions about our products.