Optical Galvanometers

1. OSJC Series Galvanometer Optical Scanners

OSJC series galvanometer scanners are designed by adopting the magnet-moving structure, combining the most advanced international photoelectric sensor technology and the PDM control mode, and using the military-grade processes and technologies.

• Adopted the photoelectric sensors which imported from America, and owned the proprietary intellectual property rights.

• Differential photoelectric sensor for accurate detection of motor rotor position, good linearity, lower drift, high resolution and repeat positioning.

• Accurate load design for 10mm mirrors, high accuracy of motor assembly, reasonable structure, very small static friction coefficient and zero offset, all ensured the best dynamic characteristics for the whole system.

• Drives with advanced detection ability of position and speed, greatly improved the dynamic response performance and scanning speed of the whole system.

• Design of overload, over-current and reverse connect protection, makes the system running more reliable.

• The whole system adopted the optimization Designing of electromagnetic compatibility, with high signal-to-noise ratio and strong anti-interference ability.

• This scanner system solved the common problems of motor temperature drift, signal interference and zero drift, etc.

Model OSJC-2203 & OSJC-8330

Note: The above data are tested after 30 min warm-up.

1. With F-theta objective, F=160mm, marking 2mm height single character

2. With F-theta objective, F=160mm, marking 1mm height single character per

3. second Special wavelength coating film can be customized

4. If any special requirement, customization is available.

Model OSJC-8220

Servo Driver Board Specification

2. OSST Series Galvanometer Optical Scanners

The galvanometer system is a high-precision and high-speed servo control system composed of a driving board, galvo and scan mirror, mainly used for laser marking, laser engraving, stage lighting control, etc.

The working principle of this system is that by inputting a position signal, the oscillating motor (galvanometer) will swing a certain angle according to a certain voltage and angle conversion ratio. The entire process adopts closed-loop feedback control, which is jointly operated by five control circuits/parts: position sensor, error amplifier, power amplifier, position discriminator, and current integrator.

The OSST series galvanometer systems produced by our company utilize the latest generation of integrated circuits and adopts various anti-interference methods to drive the circuit board. The system not only has strong anti-interference ability, high reliability, good linearity, high repetition accuracy, short response time, but also has a small size, which is easy to install and transport.

Remarks:

• All the galvos are chrome coated cover.

• The scan mirrors at the laser wavelengths of 1064nm, 532nm, 355nm, 266nm, 10.6um and others are available upon request.

OSST Series Drivers (Drive Boards)

There are 2 types of drive boards for OSST series galvos: one board to drive 2 galvos (1-to-2 board or just called board, default); one board to drive 1 galvo (1-to-1 board). Their driving capabilities and main performance are same. The main difference is the dimension.

General specifications:

• Supply power: ±15VDC to ±24VDC

• Analog input position signal: ±5V (default), ±10V available upon requestion.

• Position signal output (option): 1:1 port and 1:10 port.

1. 1-to-2 Boards

1.1 1-to-2 Board without Position Output Signal (OSST-D)

This driver is mostly used in 2D laser marking/scanning.

1.2 1-to-2 Board with Position Signal Output (OSST-D-PO)

2. 1-to-1 Boards

1-to-2 Board with Position Signal Output (OSST-D-1-PO)

There are 2 position signal outputs for use.

D/A Convertors

Depending the required control signal of the drive boards and the control signal of your control system, a D/A card may be needed.