New Focus 8783 GuideStar User Manual Download Page 7

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4.3.2

Optical Layout .....................................................12

4.4

Making Connections ........

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4.5

Software Operation ..........................................................15

4.5.1

System Set-up ......................................................15

4.5.2

Guide Star II Tab .................................................16

4.5.3

Beam Profiler Tab ...............................................21

4.5.4

Pointing Stability Tab ..........................................22

4.5.5

Stability Analysis .................................................22

4.5.6

Changing Scales on Images and Charts ...............23

4.5.7

Exiting the GuideStar II Application ...................24

Principles of Operation

............................. 25

5.1

GuideStar II Algorithm Theory .......................................25

5.2

Acquiring the Motion Matrix ..........................................26

Frequently Asked Questions

..................... 28

Maintenance and Service

.......................... 31

7.1

Warranty ..........................................................................31

7.2

Technical Support ............................................................31

7.3

Obtaining Service ............................................................31

Summary of Contents for 8783 GuideStar

Page 1: ...User s Manual 8783 GuideStarTM II Controller ...

Page 2: ...oration 1791 Deere Avenue Irvine CA 92606 Standards Applied Compliance was demonstrated to the following standards to the extent applicable BS EN61326 1 2006 Electrical equipment for measurement control and laboratory use EMC requirements for use in a controlled electromagnetic environment This equipment meets the CISPR 11 2009 A1 Class A Group 1 radiated and conducted emission limits BS EN 61010 ...

Page 3: ... apply to products which have been repaired or modified without Newport s written approval or products subjected to unusual physical thermal or electrical stress improper installation misuse abuse accident or negligence in use storage transportation or handling This warranty also does not apply to fuses batteries or damage from battery leakage THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRE...

Page 4: ...cus Customer shall not at any time disclose New Focus s trade secrets to any other person firm organization or employee that does not need consistent with Customer s right of use hereunder to obtain access to the New Focus Programs and Related Materials These restrictions shall not apply to information 1 generally known to the public or obtainable from public sources 2 readily apparent from the ke...

Page 5: ... Return the product to Newport Corporation freight prepaid clearly marked with the RMA and we will either repair or replace it at our discretion Newport is not responsible for damage occurring in transit and is not obligated to accept products returned without an RMA E mail rma service newport com When calling Newport Corporation please provide the customer care representative with the following i...

Page 6: ...EE 6 2 1 8 Control of Hazardous Substances 6 2 2 Warnings and Cautions 7 2 2 1 General Warnings 7 2 2 2 General Cautions 7 2 2 3 Summary of Warnings and Cautions 8 2 2 4 Additional power supply warnings 8 3 Getting Started 9 3 1 Unpacking and Handling 9 3 2 Inspection for Damage 9 3 3 Parts List 9 3 4 Choosing and Preparing a Suitable Work Surface 9 3 5 Electrical Requirements 10 3 6 Computer requ...

Page 7: ... 4 5 4 Pointing Stability Tab 22 4 5 5 Stability Analysis 22 4 5 6 Changing Scales on Images and Charts 23 4 5 7 Exiting the GuideStar II Application 24 5 Principles of Operation 25 5 1 GuideStar II Algorithm Theory 25 5 2 Acquiring the Motion Matrix 26 6 Frequently Asked Questions 28 7 Maintenance and Service 31 7 1 Warranty 31 7 2 Technical Support 31 7 3 Obtaining Service 31 ...

Page 8: ... the beam rotation about both X and Y The system is anchored by the small GuideStar II Model 8783 controller which serves as a USB hub for communication with the cameras and also serves as a multiplexed Picomotor driver to generate drive signals for the four motors The controller connects to the user s host computer via USB And the host computer runs the GuideStar II software which is user friendl...

Page 9: ...appears on the product and in Warning and Caution tables throughout this document This symbol designates that documentation needs to be consulted to determine the nature of a potential hazard and any actions that have to be taken 2 1 2 Electric Shock Figure 2 Electrical Shock Symbol The Electrical Shock Symbol in the figure above appears throughout this manual This symbol indicates a hazard arisin...

Page 10: ...s 2 1 4 Alternating Voltage Symbol Figure 4 Alternating Voltage Symbol This international symbol implies an alternating voltage or current 2 1 5 USB Figure 5 USB Symbol The symbol in the figure above identifies the USB connector location on the Model 8783 Controller 2 1 6 Frame or Chassis Figure 6 Frame or Chassis Terminal Symbol The symbol in the figure above appears on the Model 8783 Controller ...

Page 11: ...ecycling of the waste equipment at the time of disposal will help to conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment For information about where the user can drop off the waste equipment for recycling please contact your local Newport Corporation representative 2 1 8 Control of Hazardous Substances Figure 8 RoHS Compliant Symbol ...

Page 12: ...ns in the service instructions or on the equipment Only qualified service personnel should replace fuses To avoid explosion do not operate this equipment in an explosive atmosphere Qualified service personnel should perform safety checks after any service 2 2 2 General Cautions Observe these cautions when operating this equipment If this equipment is used in a manner not specified in this manual t...

Page 13: ...duct is equipped with a three prong plug For proper operation and your protection this plug should not be modified and must be plugged directly into a properly grounded three prong receptacle This product if not provided with a power switch Do not block access to the power connector in case emergency shutdown is required Voltages of up to 130V are accessible inside the driver chassis mounts and Pi...

Page 14: ...mage or mishandling Inspect the contents for damage If there is visible damage to the instrument upon receipt inform the shipping company and New Focus immediately Carefully open the box and save the shipping material for later use 3 3 Parts List The following is a list of parts included with the Model 8783 GuideStar II controller 8783 GuideStar II controller CD with Software Drivers and Utilities...

Page 15: ...e between the Models 8783 GuideStar II Controller and adjacent walls for ventilation purposes Do not let any other equipment blow hot air towards the unit 3 6 Computer requirements Software Windows 7 32 bit 64 bit Windows XP 32 bit only Processor AMD DUAL CORE AMD QUAD CORE Intel Pentium Dual Core Intel Pentium Quad Core Intel Pentium Core i3 i5 i7 RAM 4GB minimum HDD 160GB minimum DVD player Scre...

Page 16: ...w often the beam is moved an Inner Target and an Outer Target are defined for the sensors When the beam drifts outside of one or both of the Outer Targets it is moved back inside the smaller Inner Target on both sensors Then it is not moved again until it drifts outside of one or both of the Outer Targets Suitable choice of the target sizes can result in relatively infrequent motor activity to mai...

Page 17: ...f beam size and exposure time are accounted for this figure can be used to choose appropriate pick offs and attenuation for the beam Fine tuning of power is accomplished via the exposure time so as to maximize dynamic range Figure 9 Approximate saturation power of the cameras with a 10 ms exposure time and a 2 mm beam diameter Exposure time can range from 1 to 980 ms 4 3 2 Optical Layout The physi...

Page 18: ... a 30 μm Target pointing drift will be limited to 60 μrad for a 0 5 m separation and 30 μrad for a 1 m separation Figure 10 Example physical layout of mirrors and cameras for GuideStar II system To optimize performance Camera 2 can be positioned so as to image a plane equivalent to the users working plane This can be accomplished by setting the distance between the second pickoff and the working p...

Page 19: ...e the necessary connections and re open the application Ensure that the x axis and y axis motor of Mirror 1 is connected to M1X and M1Y respectively Similarly the x axis and y axis motors of Mirror 2 should be connected to M2X and M2Y This is a common source of error that can be avoided The first Camera along the beamline is Camera 1 and it should be cabled to the Camera 1 USB port on the controll...

Page 20: ...window available through GuideStar II Tab This window cannot be closed until steps 1 4 are completed If blocking the beams to the Camera 1 causes the Camera 2 image to disappear in the GuideStar II display or vise versa then the camera IDs should be swapped For instructions on how to do this see Section 6 Frequently Asked Questions Now click Next or click on the GuideStar II Auto Configuration tab...

Page 21: ...e each motor X1 Y1 X2 Y2 by pre defined amounts in the positive and negative directions and stop once it has gathered enough information or the beam has moved to the edge of the optical aperture Once the Motion Matrix has been acquired the green light next to the Acquire Motion Matrix button will be lit In Step 7 you acquire the target size Click the Acquire Target Size button and the software wil...

Page 22: ...e 14 Screenshot of information and buttons available under GuideStar II Tab This button will turn off Lock and open the same System Set up described Section 4 4 1 System set up can be repeated at any time To close the window click on the Finished button on the GuideStar II Auto Configuration tab A pop up window will open in which you can save changes to the System Set up ...

Page 23: ...e but will permit longer Exposure Times The default value can be used in most cases o Telescope magnification The default value should be used in most cases This number is used to convert positions on the camera sensors to positions of the incident beam Values of beam position and width reported on all tabs scale with this number The default is the nominal value at the center of the image Distorti...

Page 24: ...to move the beam back to the Inner Target The distance to the center of the Inner Target scaled by the Loop Gain is the size of the step taken This parameter will influence the dynamic response of the control loop It is recommended that one start with the default value and adjust it to achieve a well behaved no ringing relatively fast return of the beam to the Inner Target A higher value will incr...

Page 25: ...several minutes Figure 17 Example physical layout of mirrors and cameras for GuideStar II system o Manual Picomotor Controls The pair of four arrows with buttons provide manual control of the Picomotors These can be used to manually position the beams during set up and also to test the response of the control loop By pressing a button while Lock is on the dynamic performance of the loop can be eva...

Page 26: ...vailable is the Camera Settings button and a Pause button The Full Size button under each image will enlarge the image This can be reversed by hitting Esc on the keyboard The Save Image button allows one to save a JPG image to disk Figure 18 Example beam profile information available under Beam Profiler Tab ...

Page 27: ...le Figure 19 Example automatically generated graphs of beam position data found in Pointing Stability Tab 4 4 5 Stability Analysis The Stability Analysis tab contains the individual data plots for X1 Y1 X2 Y2 This is the raw data as well as user defined averaged data and it is controlled by the Start test and Pause buttons on the Pointing Stability Tab This data can be saved to a txt file using th...

Page 28: ...ng clicking on the maximum or minimum data label on an axis allows one to change its value To change the scale of a camera image Move the mouse pointer over an image to enable the magnifying glass Click to zoom in around the pointer location or shift click to zoom out When zoomed in or out an icon will appear in the upper right corner Clicking this will reset the zoom so that the full sensor area ...

Page 29: ...xit the GuideStar II application click on the Exit button in the lower right corner Then the GuideStar II window can be closed by either clicking on the close box in the upper right corner of the window or by going to File Exit in the upper left corner ...

Page 30: ...ities in the system this leads to oscillation Multiplying by a gain coefficient less than 1 leads to stable iterative convergence to the target in multiple steps CAM1X CAM1Y CAM2X CAM2Y MM1X MM1Y MM2X MM2Y A11A12A13A14 A21A22A23A24 A31A32A33A34 A41A42A43A44 Movement Matrix A CAM1X CAM1Y CAM2X CAM2Y MM1X MM1Y MM2X MM2Y A MM1X MM1Y MM2X MM2Y CAM1X CAM1Y CAM2X CAM2Y A 1 CAM1X CAM1Y CAM2X CAM2Y MM1X M...

Page 31: ... 1 x which is obtained according to However this actuation will also move the beam along the y axis of Mirror Mount 1 the x axis of Mirror Mount 2 and the y axis of Mirror Mount 2 Lock Single Step Equation Determines the movement for each motor from the difference between the current beam positions and the Target beam positions MM1X MM1Y MM2X MM2Y MM1X MM1Y MM2X MM2Y CAM1X CAM1Y CAM2X CAM2Y CAM1X ...

Page 32: ...M1X A11 MM1X CAM1X MM1X A11 CAM1Y MM1X A21 CAM2X MM1X A31 CAM2Y MM1X A41 CAM1X CAM1Y CAM2X CAM2Y MM1X 0 A11A12A13A14 A21A22A23A24 A31A32A33A34 A41A42A43A44 0 0 CAM1X A11 MM1X CAM1X A11 MM1X CAM1X MM1X A11 CAM1X MM1X A11 CAM1Y MM1X A21 CAM2X MM1X A31 CAM2X MM1X A31 CAM2Y MM1X A41 CAM2Y MM1X A41 ...

Page 33: ...est physical layout will also maximize the separation between the two Mirror Mounts and between the two Cameras to give the most control and highest possible resolution For example a 60cm minimum distance between the two Mirror Mounts and between the two Cameras will give a resolution of or better than 10 μrad It may also be useful to have the last camera image the actual working plane of the set ...

Page 34: ...eam position resolution is much smaller than this because the beam is measured over a large number of pixels The camera position resolution noise had a standard deviation of 0 04μm and temperature drift coefficients of 3μm C vertical and 0 5μm C horizontal With a 2 7 1 telescope all these numbers get multiplied by 2 7 What is the temperature sensitivity of the cameras Measurements of beam position...

Page 35: ...ye Camera Manager program Ensure that both cameras show up in the Camera List with the appropriate Camera ID How do I swap camera ID s Close the GuideStar II application and start the uEye Camera Manager Both cameras should appear in the list Select one then click Camera Information and change its camera ID from 1 to 2 or from 2 to 1 Click OK and then do the same for the other camera Close the uEy...

Page 36: ...l Support when calling the numbers listed below and know the model and serial number for your product Hours 8 00 5 00 PST Monday through Friday excluding holidays Toll Free 1 866 NUFOCUS 1 866 683 6287 from the USA Canada only Phone 408 284 6808 Fax 408 980 4300 Email techsupport newfocus com We typically respond to faxes and email within one business day 7 3 Obtaining Service The GuideStar II Con...

Page 37: ...iven a Return Material Authorization RMA Number which you should reference in your shipping documents Please fill out a copy of the service form located on the following page and have the information ready when contacting Newport Corporation Return the completed service form with the instrument ...

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