Nanopositioning Controllers: Multiaxis Digital & Analog
| Digital servos provide advantages over analog circuits when high positioning linearity is important or when control parameters need to be modified frequently. This could be the case when load changes occur or when different motion profiles need to be optimized for minimum settling time or optimum tracking accuracy.
Analog servos are usually less expensive than digital servos. If designed well, they provide very low noise and fast response at a very attractive price.
All PI piezo nanopositioning controllers come with tunable notch filters and provide the highest closed-loop bandwidth in the industry.
Detailed Controller Selection Criteria
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The E-725 is a high-performance digital nanopositioning controller for piezo stages with up to 3 axes. High-power amplifiers permit dynamic operation and scans even for piezo systems with high capacitance direct drives and large travel ranges. A powerful 32 bit processor ensures a servo rate of 20 kHz. Low Noise 24 bit DACs provide high position resolution. Digital I/O lines are available for triggering and synchronization with external events. Analog control inputs are optional. The ID chip feature enables automatic calibration and exchangeability between piezo mechanics and controllers.
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- Cost Optimized for 3-Axis Applications
- Powerful Digital Controller: DSP 32-bit Floating Point, 225 MHz; 20 kHz Sampling Rate; 24-bit DAC
- All Parameters Configurable in Software, Change of Settings "on-the-fly"
- For Nanopositioning Systems with Capacitive Feedback
- Three Digital Communication Interfaces: Ethernet,
USB, RS-232
- Optional High-Speed Parallel I/O Interface
- Digital I/O Lines for Trigger Functions
- Additional High-Bandwidth Analog Control Input / Sensor Input
- 4th Order Polynomial Linearization for Mechanics & Electronics
- Dynamic Digital Linearization (DDL) Option Significantly Improves Dynamic Accuracy
- ID-Chip Capability for Interchangeability of Controller & Piezo Mechanics
- Flexible Wave Generators
- Extensive Software Support
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- 3-, 4- & 6-Channel Versions
- Extensive Software Support
- All Servo & Control Parameters Software-Settable
- Dynamic Digital Linearization (DDL) Option Significantly Improves Dynamic Accuracy
- Coordinate Transformation for Parallel-Kinematics / Parallel-Metrology Systems
- ID-Chip Capability for Interchangeability of Controller & Piezo Mechanics
- Options: High-Speed Parallel I/O Interface and Analog Inputs
- Notchfilter for Higher Bandwidth
- Optional Long-Distance Digital Sensor-Signal Transmission
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The E-710 is PI's multi-axis digital controller work horse. Based on powerful 32-bit DSPs (digital signal processor)
E-710's include integrated, low-noise power amplifiers for piezo actuators and signal processing for high-resolution capacitive position sensors. E-710s provide up to 8 piezo driver channels, 7 sensor channels and the processing power for coordinated control of up to 6 logical axes, e.g. for parallel kinematics systems.
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The E-761 is a cost-effective 3-channel digital piezo nanopositioning controller for PCI-slots. They were designed to run piezo stages with up to three logical axes. The E-761 incorporates four instrumentation-class, 24-bit digital-analog converters (DAC), ultra-low-noise power amplifiers, and is based on a specialized 32-bit digital signal processor (DSP) with proprietary firmware. |
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- Extensive Software Support
- For Piezo Systems with Capacitive Sensors
- High-Speed PCI Interface
- Additional High-Bandwidth Analog Position Control Interface
- 32-Bit Digital Filters
- Notch Filter for Higher Bandwidth
- 24-Bit Ultra-Low-Noise DAC Converters
- ID-Chip Capability for Interchangeability of Controller & Piezo Mechanics
- Coordinate Transformation for Parallel-Kinematics / Parallel-Metrology Systems
- 4 Piezo Amplifiers, 3 Logical Axes
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| Modular Digital Piezo Nanopositioning Controllers |
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- Extensive Software Support
- Digital Controller of the Newest Generation: 50 kHz Servo Update Rate, Ultra-High Stability 20-bit D/A Converter
- Real-Time Operating System for Excellent Trajectory Control
- Modular Design for Greatest Flexibility in Meeting Custom Requirements
- ID-Chip Capability for Interchangeability of Controller & Piezo Mechanics
- Versatile Digital Interfaces: Ethernet, USB, RS-232
- Optional High-Bandwidth Analog Control Inputs and Outputs
The E-712 high-end digital piezo nanopositioning controller was designed to meet the most demanding accuracy and dynamic-performance requirements of multi-axis precision positioning systems. The high-performance, real-time operating system makes possible coordinated servo-control of multiple axes (serial and parallel-kinematic configurations) and ensures excellent trajectory control
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even during complex motion. The interface provides multiple ways to communicate with the E-712: from Ethernet and USB to parallel realtime control. In addition optional high-resolution analog I/O supports external analog sensor or control signals as well as driving external amplifiers.
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| E-712 Chassis and Basic Modules |
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| Analog Multi-Axis Nanopositioning Controllers |
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E-664 XYZ Piezo Nanopositioning Controller for P-611.3S NanoCube® Systems |
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- Position Servo-Control with Notch Filter for Higher Bandwidth and Stability
- High Bandwidth Analog Control Interface (0-10V) and Manual Control
- 3 Integrated Amplifiers, 14 W Peak Power
- 3 Displays for Position & Voltage
The E-664 is a 3-axis nanopositioning controller and driver specifically designed for the P-611.3S NanoCube® XYZ nanopositioning system. Three integrated low-noise amplifiers and control circuitry for strain gauge position sensors allow closed-loop position resolution down to 2 nm and dynamic operation.
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- TCP/IP, USB und RS-232 Interfaces
- Low-noise 24-bit D/A Converters
- 3 Channels
- Linearization for Piezoresistive Sensors
- Notch Filter for Higher Bandwidth
- 3 x 14 W Peak Power
- Wave Generator with Programmable Trigger-I/O
The E-545 nanopositioning controller was designed for the PInano™ XY and XYZ piezo stage series for super-resolution microscopy. It comes with a multitude of digital and analog interfaces and ample software support.
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- Ultra-Low Noise for Picometer Positioning
- 3 x 100 W Peak Power
- ±250 V Output Voltage
- Optional Computer Interface & Display Module
The E-536 picopositioning controller is equipped with three ultra-low-noise amplifiers for piezo shear actuators. The controller design meets the special requirements of the high-speed, ultra-high-performance PicoCube™ XY(Z) piezo stages for dynamic and static applications.
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- Compact and Cost-Effective Design
- 3 x 10 W Peak Power from 3 Integrated Amplifiers
- Internal Coordinate Transformation Simplifies Control of Triopod Parallel Kinematics Designs
- Closed-Loop
The E-616 nanopositioning controller is a compact unit designed for piezo based tip/tilt platforms and steering mirrors. It can drive tripod tip/tilt +Z designs as well as quad differential tip/tilt stages. Integrated coordinate transformation makes the operation transparent to the user. The unit is equipped with instrumentation amplifiers for high-resolution strain gauge position sensors for millisecond response and µrad / nanometer resolution. 10 Watts of output power per channel allow for dynamic operation of the tip/tilt systems for applications such as imaging, tracking and (laser) beam steering or stabilization.
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| Modular Analog Nanopositioning Controllers
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- 1, 2 & 3 Axes Standard , Custom Systems up to 12 Axes
- 19" Rack and 9.5" Version
- Choice of Amplifier Modules, 14 to 400 W Peak Power, 130V to 1000V
- Choice of Position Servo Control Modules for Strain & Capacitive Sensors
- Choice of PC Interface / Display Modules
The E-500 / E-501 rack is a very flexible modular piezo controller system that can be configured in many different of ways. A multitude of amplifier modules, interface modules sensor modules and servo controller modules allow the systems to be adapted to a wide range of applications. Up to 12 Channels fit in one rack.
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| Modules for E-500/E-501 Rack |
For Single-Axis Controllers Click Here
