A DSP-based controller for a linear actuator system with sub-angstrom resolution and 15-millimeter travel range
Conference
·
OSTI ID:925272
We have designed and tested a new digital signal processor (DSP)-based closed-loop feedback controller for a linear actuator system with sub-angstrom resolution and 15-mm travel range. The linear actuator system consists of a laser Doppler encoder with multiple-reflection optics [1], a high-stiffness weak-link mechanism with high driving sensitivity and stability [2], and a Texas Instruments TMS320C40 DSP-based controller for high-performance closed-loop feedback control. In this paper, we discuss the DSP-based controller design, as well as recent test results yielding step sizes below 50 picometers obtained with the atomic force microprobe setup.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 925272
- Report Number(s):
- ANL/XFD/CP-116780; TRN: US200807%%92
- Resource Relation:
- Conference: International Society for Optical Engineering; Jul 31 - Aug 4, 2005; San Diego, CA
- Country of Publication:
- United States
- Language:
- ENGLISH
Similar Records
A linear actuator system with 1-angstrom closed-loop control resolution and 50-millimeter travel range.
A generic DSP-based real-time simulator with application to hydrogenerator speed controller development. [Digital Signal Processor]
DSPS in data acquisition
Conference
·
Mon Aug 12 00:00:00 EDT 2002
·
OSTI ID:925272
+1 more
A generic DSP-based real-time simulator with application to hydrogenerator speed controller development. [Digital Signal Processor]
Journal Article
·
Wed Jun 01 00:00:00 EDT 1994
· IEEE Transactions on Energy Conversion (Institute of Electrical and Electronics Engineers); (United States)
·
OSTI ID:925272
DSPS in data acquisition
Conference
·
Wed Dec 31 00:00:00 EST 1997
·
OSTI ID:925272
+1 more