Galvanometer Optical Scanners /Drivers /Drive Boards

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.

3. OSCT Series Optical Galvanometers

Our broad range of closed loop galvanometer-based optical scanning components and systems offer the systems integrator the maximum galvanometer-based performance for any positioning or scanning requirement. Our superior positioning performance comes from advanced actuator designs, innovative patented position detection techniques, the consistency of our high quality manufacturing process and our continued commitment to advancing the state of galvo technology. With our extensive range of scanning options, application expertise and world-wide technical support, we are ready to be your partner in scientific and OEM optical system applications.

Just as important as our superior positioning system performance is the product reliability, lifetime and support that you need for long term system and market success. Superior product lifetime and reliability result from disciplined design technique and simulation, the best in bearing and component technology and quality manufacturing processes and workmanship. We take great pride in the performance and the extensive lifetime of our products. These high standards in our manufacturing processes guarantee the performance consistency that you need to design the high calibre systems demanded in today’s competitive marketplace.
We offer a complete range of closed loop galvanometers, servo drivers and system options for the maximum in price/performance options, system design flexibility and ease of integration.

Optical Galvanometers

• Proprietary Moving Magnet Actuator Technology for the highest positioning speed.
• Proprietary Moving Coil Actuator Technology for the highest positioning accuracy.
• Patented Capacitive Position Detector Technology for the highest positioning accuracy and stability
• Patented Optical Position Detector Technology offers positioning accuracy at lower cost.
• Product Consistency and Reliability for extended system lifetimes and uptime.
• A Broad Range of Products sized for optimum performance for apertures from 1mm to 50mms.

These galvo technologies are offered in three families of optical scanning products.

• The Moving Magnet Scanners with Advanced Optical Position Detector (62xxH series such as 6200H, 6210H, 6215H, 6220H, 6230H, 6231H, 6240H, 6250H, 6260H, and 83xxK series such as 8300K, 8310K, 8315K, 8320K, 8330K, 8331K, 8340K, 8350K, 8360K )
• The Moving Magnet Scanners with Capacitive Position Detector (Model 6860, 6870, 6880)
• The Moving Coil Scanners with Capacitive Position Detector (Model 6350, 6450, 6650, 6900, 6400)

Servo Drivers (Drive boards)

The key Servo Driver Technologies and offerings include:

• Surface Mount Technology (SMT) driver boards for compact system size.
• Proprietary Class 1 Integrating Servo Drivers for the highest positioning accuracy and stability.
• Proprietary Class 0 Non-Integrating Servo Drivers for the highest speed and lowest cost.
• System Control and Interface Features for ease of system integration.

These servo technologies are offered in analog and digital versions. The analog drivers include 670, 671, 672, 673, 677 series and the digital drivers include DC900, DC2000, and D3000 plus.

System Options

For more complete levels of system integration and solutions, we also provide the following system components and solutions:

• Standard Two Axis X/Y Mounts and Mirrors Sets from 3mm to 50mm apertures (called marking heads, laser scanners).
• Standard and Custom Mirrors for all galvos.
• Standard and Custom Interface Cables.
• PositionProtm PC-based Hardware and Software Galvo Control.

1. OSCT Series Optical Galvanometers

• The combination of our Moving Magnet Actuator technology and our innovative patented Advanced Optical Position Detector design offers the highest positioning speed and excellent accuracy in the smallest, lower cost closed loop galvanometers. Scanning system applications can be designed and optimized for speed, size, cost and accuracy with typical beam diameters in the 1 to 3mm range.

• The Moving Magnet Scanner's Positioning Speed comes from advanced galvanometer and actuator design for the highest system resonant frequency and RMS power capability. The higher resonant frequency of our moving magnet actuator design, the intense magnetic field strength of state of the art neodymium-iron-boron magnets and our advanced servo driver options allow superior system bandwidths, step response times and repetition rates with excellent wobble and jitter performance.

• Our newly patented advanced optical position detector design coupled with the positioning precision of the moving magnet actuator provides excellent repeatability and accuracy . The advanced optical position detector is designed to provide high positioning linearity, repeatability and stability over time and temperature, and lower closed loop galvo cost in the smallest, most compact package.

• Superior product lifetime and reliability result from disciplined design technique, the best in bearing technology and quality manufacturing processes and workmanship. We take great pride in the performance of our products. Our scanner designs are computer modelled and have been life-test proven to billions of cycles of operation. Our high standards of manufacturing quality guarantees the performance consistency that you need to design the high quality systems demanded in today's competitive marketplace.

1.1 62xxH Series Optical Galvanometers

Our popular 62xxH Series of closed loop, galvanometer-based scanners is consistently the industry’s leading solution for high-performance laser beam steering. Each motor combines our moving magnet actuator technology with a position detector only available from Cambridge Technology. This patented technology features stable positioning while achieving the fastest scan speeds available in its category. Whether your focus is on speed, accuracy, or footprint, the 62xxH Series delivers both performance and value.
Attain high-performance and reliability for your value-driven application:

• Industry’s fastest motor speeds deliver maximum throughput with long-term reliability
• High-accuracy output across a diverse range of application scanning needs
• Robust design supports consistent stability over long product lifetimes
• Footprint of compact models ensures ease of integration for small spaces
• Available with a wide range of mirrors sizes (3 to 50 mm) and coating options

Position Detector (specifications common across all models):

(1) Model 6210H Moving Magnet Closed Loop Galvanometer Based Optical Scanner

Supports apertures of 3mm, 4mm, 5mm, 6mm, and 7mm. Shown here with A connecter and 3mm Y mirror.All Position Detector specifications apply with our servo driver after a 30 second warm-up. All angles are in mechanical degrees. Consult manual for complete operating instructions.
Mechanical

Electrical/Drive Mechanism

Position Detector

(2) Model 6230H Moving Magnet Closed Loop Galvanometer Based Optical Scanner

The 6230H galvanometer can be designed and optimized for speed, size, cost and accuracy with typical beam diameters of 8mm, 10mm, 12mm, and 15mm. It is shown here with a 10mm Y mirror. All Position Detector specifications apply with our servo driver after a 30 second warm-up. All angles are in mechanical degrees. Consult manual for complete operating instructions.

Mechanical Specifications

Electrical Specifications/Drive Mechanism

Position Detector

• 6230HM50A MiniCT split cable 671XX connectors with 12” cable, ±25 optical degrees. Mxx denotes maximum optical degrees.
• 6230HB with 67723H will work
• 6230H with 67123H & adaptor cable 6010-20-xxx will work.
• 6230HA with 671 will work.

Remark: if the connectors of the galvo and drive board are not matched, an adaptor cable is needed to make them matched. For example, an adaptor cable is needed if you want to use 6230HB with 67123H.

(3) Model 6231HC Moving Magnet Closed Loop Galvanometer Based Optical Scanner

The 6231H supports apertures of 8mm, 10mm, 12mm, and 15mm. It is shown here with the C connector and a 10mm Y mirror. All Position Detector specifications apply with our servo driver after a 30 second warm-up. All angles are in mechanical degrees. Consult manual for complete operating instructions.
Mechanical

Electrical/Drive Mechanism

Position Detector

(4) Model 6231HB Moving Magnet Closed Loop Galvanometer Based Optical Scanner

(5) Model 6240H Moving Magnet Closed Loop Galvanometer Based Optical Scanner

The 6240H galvanometer can be designed and optimized for speed, size, cost and accuracy with typical beam diameters of 12mm, 15mm, 20mm, 25mm, and 30mm. It is shown here with a 12mm Y mirror. All Position Detector specifications apply with our servo driver after a 30 second warm-up. All angles are in mechanical degree. Consult manual for complete operating instructions.
Mechanical Specifications

Electrical Specifications/Drive Mechanism

Position Detector

1.2 83xxK Series Optical Galvometers

Our 83xxK Series of scanners builds on the 62xxH Series’ speed and reliability with even higher resolution and thermal stability for the most demanding, high-precision applications. Each model includes our best-in-class, moving magnet actuator technology and enhanced position detector only available from Cambridge Technology. With its lower drift and noise, the 83xxK Series is ideal for applications requiring precise features such as micromachining and large field applications that are dependent on stability.
Achieve the highest level of scanning accuracy, speed, and reliability:

• Industry’s fastest motor speeds, with even higher resolution and stability
• Superior precision and accuracy that ensures high-quality processing output
• Robust design supports consistent reliability over long product lifetimes
• Footprint of compact models ensures easy system integration for small spaces
• Available with a wide range of mirror sizes (3 to 50 mm) and coating options

Position Detector (specifications common across all models):

1.3 Model 6870 Moving Magnet Capacitive Position Detector Optical Scanner

Supports 12mm and 15mm beam apertures. All Position Detector specifications apply with our servo driver after a 30 second warm-up. All angles are in mechanical degree. Consult manual for complete operating instructions.
Mechanical Specifications

Electrical Specifications/Drive Mechanism

Position Detector

1.4 Model 6880 Moving Magnet Capacitive Position Detector Optical Scanner

Supports 20 mm and 30 mm beam apertures.

• 6880 has D-sub 9 connector and +/-40o optical
• 6880A has MiniCT split cable and +/-40 o optical
• 6880M has D-sub 9 connector and +/-20o optical
• 6880MA has MiniCT split cable and +/-20 o optical
• 6880M140 has D-sub 9 connector and +/-60o optical
• 6880MA140 has MiniCT split cable and +/-60 o optical

All Position Detector specifications apply with our servo driver after a 30 second warm-up. All angles are in mechanical degrees. Consult manual for complete operating instructions.
Mechanical Specifications

Electrical Specifications/Drive Mechanism

Position Detector

1.5 Model 6450 Moving Coil Closed Loop Galvanometer Based Optical Scanner with Capacitive Position Detector

Supports 12 mm apertures. All Position Detector specifications apply with our servo drivers after a 30 second warm-up. All angles are in mechanical degrees. Consult manual for complete operating instruction.
Mechanical Specifications

Electrical Specifications/Drive Mechanism

Position Detector

Driver: 67045

2. Servo Electronics

Our performance PID drivers are fully-featured servos available in compact, dual-axis, and high power configurations. Delivering both accuracy and power, our driver solutions support even the most demanding applications requiring fast speeds with high repeatability, linearity, and stability. The combination of size, performance, and flexibility make our analog servos the ideal choice for your integrated scanning systems.
Get value-for-performance in a compact size with maximum drive power

• Designed for stability and high-bandwidth control that enables maximum throughput
• Compact product sizes ensure flexible, easy integration within complex systems
• On-board protection circuitry provides reliability during evaluation and operation
• Includes convenient outputs for galvanometer position, error, and velocity signals
• Fully-optimized performance with Cambridge Technology scanning products

2,1 Analog Servo Drivers

(1) List and Comparison of 671, 672 and 673

(2) MicroMax® Model 677XX Single Axis

FEATURES:

• Smallest Servo Driver For Compact, Low Cost System Integration
• Position, Error and Velocity Output Signals
• Input Scale and Offset Adjustment
• On Board Protection Circuitry

The MicroMax Model 677XX Class 0 non-integrating driver provides an extremely compact, high performance and fully featured servo package. At just 2 inches in width and 2.5 in length it is among the smallest servo drivers commercially available, bringing easier integration to your scanning solution. Featuring automatic gain control (AGC), low noise system damping, linearity compensation and high stability components, the 677XX servo provides high quality and stable positioning.

Designed with flexibility in mind, the MicroMax Model 677XX features differential analogue inputs, flexible power supply configurations and positioning control allowing for optimization of system positioning angles, speed and accuracy. System position, velocity and error output signals make integrations into complex scanning system applications easy and accurate. Integral mounting hardware, low profile connectors and the overall small size allow for compact system designs with easy integration.

The New Smaller Size MicroMax 677XX single axis servo driver can be configured for optimal performance with our 6200 and 6800 line of closed loop, galvanometer based optical scanners. Used with our patented position detection galvanometer technology, the MicroMax 677XX provides improved time and temperature stability without the need for thermal compensation. On board protection circuitry ensures reliable system control during integration and operation. To guarantee safe operation and extended product lifetime, the MicroMax 677XX monitors and controls galvanometer rms power and features a socketed fuse for added system protection. It also utilizes servo signal conditioning to maintain controlled performance within rated angular excursion limits. This combination of size, flexibility and price make the MicroMax Model 677XX the ideal choice where high levels of speed and performance are required in the most compact environment.

Specifications:

The 677 servo board is available in a variety of configurations, as detailed below:

(3)The MicroMax® Model 673XX Dual Axis

The MicroMax® Model 673XX Dual Axis Driver Board: our dual axis servo offers integrating or non-integrating servo loop configurations, error and/or slew rate input signal conditioning and high stability components for extremely accurate positioning in applications that demand the best repeatability, linearity, stability and cost in a very compact system. Low profile connectors and the dual axis design of the 673XX allow for ease of integration in any system, while built-in system conditioning and status monitoring ensures complete and reliable system control.

(4) Servo Driver MicroMax® 671XX Single Axis

The MicroMax® 671XX Driver Board: our advanced servo topology and the availability of Class 1 error integration provides excellent positioning repeatability, accuracy and stability in a compact single axis configuration. High stability components provide excellent time and temperature stability. Built-in system conditioning and status monitoring ensures complete and reliable system control during integration and operation.
We offer a digital input option with the 671 and 670 servo drivers. The Model 6757 Parallel Digital Interface is a module that mounts onto the MicroMax Servo Controller. This allows the user to provide a 16 BIT parallel digital position command. There are also four control lines allowing the user to address and control each input module using one 16 BIT data bus. The servo driver easily be configured to switch between digital and analog position command control. Each module is supplied with a mating single ended cable. One module is needed for each scanner. This is optional and is only required if a digital command is being used. This option can be easily added at a later date.

The 671 servo board is available in a variety of configurations, as detailed below:

(5) Servo Driver MicroMax® 670XX Single Axis

As the complexity and specification requirements of today's optical systems increase, so does the need for high performance, high accuracy, and compact mirror positioning systems. The MicroMaxTM Series 670 system was designed for applications that require high performance specifications.

The Series 670 Single axis Board-Level Mirror Positioning System consists of a

single-channel servo amplifier on a 2.50” x 4.00” board and a high performance scanner. The scanner is designed for a specific range of inertial loads, allowing mirrors with inertias from less than 0.001 gm-cm2 to greater than 100,000 gm-cm2 to be precisely controlled.

All angles are in mechanical degree. All specifications apply after a 1 minute warm up period.

2.2 Digital Servo Drivers

Our digital servo drivers feature self-calibration, state-space control, and command input optimization, features that are ideal for scanning applications demanding the highest speeds and accuracy. The drivers’ patented technology delivers maximum system performance, flexibility, and ease of use with on-board processors that characterize the scanning components every time you turn on the system. For ease of integration, our compact DC Model servos include flexible power supply configurations, integral mounting hardware, and low-profile connectors.

Take full control using our easy-to-integrate, high-performance servos

• Simulation-based, pre-filtering algorithms for optimization of motion control
• Self-tuning and start-up calibration provide reduced system manufacturing cost
• Simplified field service increases savings and system up-time
• Compact, flexible servo footprint is easy to configure within complex systems
• Optimized performance provided with Cambridge Technology scanning products

For more detailed information on CTI series galvos, please download here.