DSP-based servo controllers for nanopositioning piezo stages
nPoint LC.400 Series Controllers
The LC.400 series controller is the latest DSP based digital control system from nPoint. It combines ultra low-noise driver electronics and motion sensing modules with DSP-based servo control to provide superior closed-loop operation.
Positioning is achieved via commands sent over to a choice of standard and optional interfaces (see below), with feedback on stage position from either capacitive and strain gauge sensors - the LC.400 series controllers are compatible with both technologies.
Positioning linearity is better than 99.97% over the entire range of travel thanks to nPoint’s linearisation technique.
Stage calibration data and other parameters, such as control configurations, are stored onboard ready for use.
High-speed/ high-load configurations are catered for by high power amplifiers to provide the necessary current.
All in all, nPoint's LC.400 series prove to be one of the most flexible nanopositioning controllers on the market.
Specifications
| Resolution |
20-bit |
| Processor |
32-bit floating point DSP |
| Sampling rate |
24 µsec servo-loop |
| Standard interfaces |
USB
Analogue input (0 ± 10 V)
Analogue monitor output (0 ± 10 V) |
| Interface options |
AFM Inteface
9-pin I/O (with optional RS-232 functionality)
Digital Encoder Interface
Ethernet Interface
High Speed Parallel Interface
PFM (Pulse Frequency Modulation) Inteface |
| Software |
EPICS Drivers
Internal wave form generator
LabVIEW and DLL drivers
Nikon Elements Compatible
nPoint control panel
ScanImage Compatible
uManager Drivers |
| HV driver voltage |
-30 to +150 V piezo drive |
| Command input voltage |
BNC 0 ± 10 V analogue position command signal (0 to 10 V optional) |
| Sensor monitor output |
BNC 0 ± 10 V analogue sensor signal (0 to 10 V optional) |
| Sensor type |
Capacitive or Strain Gauge - others optional |
Max output current (mA)
LC.400 (1-channel)
LC.402 (2-channel)
LC.403 (3-channel) |
100 (150 optional)
100 (Up to 350 optional)
100 (Up to 350 optional) |
Dimensions (mm)
LC.400
LC.402
LC.403 |
106 x 67 x 172
185 x 67 x 240
260 x 88 x 264 |
| Cables to stage |
2 m standard (custom lengths available) |
| Operating voltage |
100 – 240 VAC, 50 – 60 Hz |
| Operating system |
Microsoft Windows XP/Vista/7/8/10, Linux, Mac OS |
| Certification |
CE, UL, CAN/CSA |
nPoint website
Terms and Conditions V6
