User's Guide to the Adaptive Optics System


Table of Contents


Introduction
Observing Information
Preparing for an AO Run
Graphical User Interface
Other Software
Procedures
Gallery of Aberrations
Optics
Other Hardware
Trouble-Shooting
Logsheet
AO Song

Mt. Hamilton Homepage

Hardware Information

Real-Time Controller Hardware:

Miscellaneous Hardware:
Filter wheels, MS connectors, Power meter


Real-Time Controller Hardware

The real-time controller is a PC running RTLinux. The majority of parts for the system are off the shelf boards. However, there are a few custom built parts. Schematics are shown below.

Hardware Summary


Quant.DescriptionPart # VendorOrig. Cost
Chassis120-slot 6U chassis with MRNH-6620F PS PCK600/620MNex Computers, Inc.
510-656-2248
David Gau
$1,887.00
Backplane1 20-slot backplane with 3xPICMG, 18XPCI slots NBP-2018Nex Computers, Inc.
510-656-2248
David Gau
$349.00
SBC board1SLE/1.4G w/ 1x1G RAM Single Board Computer 5891-603-1024M Trenton Technology Inc.
800-875-6031
Bill Wilson
$2,488.00
DMA board1High-speed 64 Bit Parallel Digital I/O PCI Board with 8Kx32-bit FIFOs, 64K bytes total, and TTL transceivers PMC64-HPDI32ALT-64K-TTL General Standards Corp.
800-653-9970
$2,245.00
DAC board532 Chn 100 kHz/chn 16 bit PCI Analog Oupput Board PD2-AO-32-16United Electronics Industries
781-821-2890
John Toto
$1,995.00
GPIO board116-Bit, 200-kHz PCI Data Acquisition Board DaqBoard/2001IOTech
440-439-4091
$999.00
RTOS1RTLinux/Pro 1.1 Development Kit (full source)
FSMLabs
505-838-9109
Cort Dougan
$1000.000 (w/ academic discount)

Computer Schematic

Inverter Board Schematic

APD Pulse Stretcher Schematic

APD Power Schematic

Connector PinConnection
1+12 V
2+5 V
3-5 V
4Ground
5Ground
6Signal
7Ground
8No Connection

Tip-Tilt Mirror

The TT mirror is a 3 inch diameter Newport zerodur mirror with an ER.2 coating (part number 30Z40ER.2, flat mirror, 76.2mm diameter, 1/20 wave). It is mounted using epoxy (Devcon Polystrate 5-minute Epoxy Gel #14265) to a 2 inch diameter Physik Instrumente fast tip-tilt stage (model number S-340, serial number 56389). There are 3 channels for the power and control:
Channel 1X-Axis
Channel 2Y-Axis
Channel 3100 V

Hardware Power

ItemCompany, Model+5V+3.3V +12V-5V-12V
Supply





Chassis/Backplane, Max (Min)Nexcom, PCK 600/620M 60A (3A)30A (3A)24A (1A)0.5A 1A
Consumption





Processor SBC (typical for 1.0 GHz)Trenton, SLE 14.02
0.5
0.1
Hard Disk Drive, Idle (Start, R/W)Fujitsu AL 8LX SCSI 0.5 (0.85, 1)
0.77 (3, 1)

CD Drive, Max
~0.4
~0.4

DMA BoardGeneral Standards, PMC64-HPDI32ALT-512K-TTL 4.5



5 DAC boards (pwer indicated is for 5)UEI, PowerDAQ II 12



Low Consumption:
31.120 1.6700.1
High Consumption:
32.620 3.900.1


Miscellaneous Hardware

ItemModel #Notes
Oriel Filter Wheel & Controller77374
Single Mode Fiber, 6micron core, 633nm, 3m Oz Optics
SMJ-3s3s-633-4/125-3A-3
Used for HeNe laser
Single Mode Fiber, 6micron core, 633nm, 3m Oz Optics
SMJ-31-633-4/125-3A-3-5P
Used for red point source
HV BNC Female connectorsKings
1705-2

Crimpers, Interchangable Die FrameKings
KTH-1000

HV BNC Crimper DieKings
KTH-2062

HV BNC Male bulkhead connectorKings
1709-1

Power MeterNewport
815
SN2220
Power HeadNewport
818-SL
SN2448

Elinor Gates
Last modified: Mon Apr 21 04:02:45 PDT 2008