NanoCapture-Software for E-710 Digital PZT Controllers
Latest Information on NanoCapture Software
- Measures System Response, Step and Settle
- Resonant Frequency, Bode Plots
- Allows Optimization of all Servo Parameters
- Increases Throughput
The new NanoCapture Software for the E-710 Digital Piezo Controller is a versatile tool for system response analysis and optimization.
In addition to standard functions for the operation of Piezo NanoPositioning Systems, NanoCapture features advanced measuring and analysis functions such as resonant frequency, overshoot, step and settle, Bode plots, etc. These features are specifically useful when the mechanical properties of a (factory-) calibrated system are changed at the operational site by parameters such as an increased or reduced payload, a different orientation or different damping conditions.
In this case, servo parameters such as gain, notch-filter frequency, etc. need to be adjusted to maintain optimum system response and stability. NanoCapture supports the operator providing system resonant frequency, rise and settling time by analyzing the dynamic position feedback data of the NanoPositioning System's integrated capacitance sensor (no other metrology or measuring instruments are required!). Based on these data, servo parameters are easily adjusted for optimized settling under any load condition.
NanoCapture even allows setting the position sensor's zero position for a perfect match of the Piezo Controller's electrical range and the NanoPositioning system's mechanical range. All settings (downloaded to the E-710 Controller) are stored in non volatile flash RAM. PI keeps data files of each E-710 Controller calibrated at the factory for easy restoration of the original settings after shipping.
NanoCapture runs on Win95/NT platforms.
The following screen shots (taken with NanoCapture) show:
a) Open loop system response
b) Bode plot
c) Closed loop step and settle after optimization
a) Open Loop Resoponse of a NanoPositioning System
b) Bode Plot of a NanoPositioning System
c) Closed Loop Response of a NanoPositioning System with Optimized Servo Settings
