HMI First Sun Test Review November 28 2005

HMI First Sun Test Review November 28, 2005 HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 1

Agenda Topic Presenter Time Overview & Objectives Miles 15 min Test Requirements Schou Lessons Learned Bush Test Plan Moskal Test Descriptions Schou, Bush, Tarbell, Hoeksema, Miles Test Data Processing Schou Test Readiness Drake, Kirkpatrick, Miles Concerns and Issues HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 2

Objectives • Objectives of the sun test review: – Verify that planned tests meet the verification requirements appropriate for the sun test. – Show that all hardware, software, facilities, procedures, and personnel are available and prepared to support the test. • Objectives of the sun test: – Learn how to operate the HMI optics package. – Learn how to characterize/calibrate the instrument. In some cases, obtain initial calibration parameters. – Discover gross errors in design or workmanship of the HMI optics package. – Determine position of focus to set the final shim on the telescope secondary lens. – Results of the sun test will directly feed into the plans and procedures for the formal test and calibration series. – The sun test does not provide formal verification of any requirements. HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 3

HMI Integration and Test Flow Nov 05 Initial Sun Tests Roll Over Cnfg II Cnfg I Flight CCD DM Camera Install ISS BB HEB (no CIF) DM CCD, DM Camera No ISS HOP Vibration Prep Sine Vibration CIF BBHEB Develop SW Accpt Test Flight Sftwr Acct Test Quasi-static Loads Acoustics Cnfg Flight Apr 06 HOP w/BB Functional Test Align May 06 Complete Flight HOP Only - Functional Test w/ BBHEB EMI/EMC Prep Special Test CPT Align Install Flt Cameras Repeated for X-, Y-, and Z-axes HEB FT Mar 06 Alignment Thermostats Random Vibration HOP w/BB Functional Test In Air Calibration Aliveness Test HOP&HEB Functional Test EMI/EMC Flight HEB Align Jul 06 HEB FT HEB Flight HEB Vibration Prep Conformal Coat TV/TB Prep Aliveness Test Vacuum Calibration Sept 06 Sine Vibration Random Vibration Quasi-static Loads HEB FT Aug 06 Repeated for X-, Y-, and Z-axes Thermal Balance Thermal Vacuum CPT Special Test Align Nov 06 = Transport HOP HMI Sun Test Review – November 28, 2005 Delivery to GSFC 40 D Slack = Sine signature HMI 01567 – Page 4

HMI Instrument Test Configurations • HMI Instrument Configuration 1 • HMI Instrument Configuration 2 – Brassboard Electronics Box – Brassboard Cables – Optics Package: Non-flight hardware – Optics Package: Install flight items • Flight CCD with flight focal plane housing (one location) • Focal plane (two) • ISS limb sensor and preamp box DM Camera (one location) • Oven controller electronics box Optics Package: Flight hardware • More harness • Finish heater routing • Install vents • Oven thermostat • Replace Lyot elements one and two • Replace NB Michelson • – • • Structure with alignment mechanism, legs, and mounting brackets • Telescope assembly: front window filter, primary lens, secondary lens, mounting bracket • Polarization selector and wavelength tuner (seven HCMs) • Harness (mechanisms only) • ISS mirror and beam-splitter • Oven assembly • BDS beam-splitter and fold mirror • CCD fold mirror (two) Tests • Tests – ISS Testing – CCD Alignment – Initial Sun Test – In-air calibration – Initial Functional Tests – HOP Vibration testing HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 5

HMI Instrument Test Configurations • HMI Instrument Flight Configuration • HMI HEB Flight Configuration – Fight electronics box – Conformal coated boards in HEB – Flight Harness – Flight HOP • Tests – Software Acceptance Test – HEB Vibration Test – Flight CPT – Vacuum Calibration – EMI/EMC Test – Thermal Balance and Thermal Vacuum HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 6

Test Article Configuration for Initial Sun Test • • • Optics • Mechanisms – All flight optics in place except as noted below. – – Michelsons are likely to be replaced with a better set after the sun test. – – Lyot elements 1 and 2 are likely to be replaced with better elements after the sun test. – Telescope not set in final focus; final focus position to be determined from sun test data. – No ISS actuation. – – – • – DM camera electronics and flight CCD with forward flight focal plane housing and flight-like headboard. – No side camera. Mechanical – Camera and Detector – • Flight oven and preamp, ETU oven controller. – No operational heater thermal control. – No MLI. – – – • No CIF. Environment – HMI Sun Test Review – November 28, 2005 Flight HCM, shutter, and cal/focus wheel harnesses; non-flight alignment leg harness Non-flight CCD flex cable. Brassboard intra-instrument harness. Brassboard HEB – • Flight structure with legs and mounting brackets Non-flight HOP cover; non-flight covers in place of radiators and vents. Cables Thermal – All seven flight hollow core motors with flight optics. Both flight focus / calibration wheels with flight optics Flight alignment legs. Flight shutters. No front door mechanism. Ambient temperature and pressure HMI 01567 – Page 7

Test Requirements – Jesper Schou HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 8

Sun Test Overview – Jesper Schou • Test prerequisites • Pre-test analysis • Measurements – Discuss measurements to be recorded during the test. Explain how the measurements will be used to verify that test objectives are met and how they will be used to provide quantitative pass/fail criteria. • Go/no go criteria – State the readiness criteria for conducting the test. What measurements, test conditions, or other parameters are absolutely required to perform the test? What parameters might be compromised? • Pass/fail criteria – Provide detailed criteria and/or methodology for declaring the test was a success or a failure. If the criteria involve processing data, provide a detailed procedure for processing the data. • Schedule – Provide a summary test schedule, including key dates for significant events. HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 9

Lessons Learned from MDI & FPP – Rock Bush, Ted Tarbell • Have several “standard” stimulus setups, with more than one person knowing how to change from one to another. • Keep a log of which setup is used for every test and any deviations from “standard” • Test and cal procedures evolve by trial and error: need prompt (not necessarily real time) data analysis and STOL/procedure editing. • Have scientists analyze the data who are not involved in collecting the data. • Decide on measurements for trending and start early; keep standard, clear tables/web sites of results. • Need quick look (almost real time) viewing of images during testing: interactive X, Y, I <I>, etc. measurements HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 10

Sun Test Plan – Ryan Moskal • Equipment • Flow of testing • Procedure (logs, shop orders, etc. ) • Facilities – Provide a description of the required test facility, including floorplan. – Describe the characteristics and capabilities of the test facility and required support equipment. (lasers, interferometers, stim tel, PCU, heliostat, etc. ) HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 11

Sun Tests • Prepare a plan for each of the following tests, using the template on the following chart: • Image Quality • Filter Transmission – Rock – Distortion – Jesper – Wavelength dependence – Image scale – Jesper – Spatial and angular dependence – MTF – Jesper – Throughput – Field curvature and focus – Jesper – Contrast – Ghost images – Rock • Polarization – Jesper – Scattered light – John – Flat field – John • Observables – Todd – Linearity – Ted • Contamination – Jesper • Image offset and distortion – Rock HMI Sun Test Review – November 28, 2005 • – Doppler – Line of sight – Vector Alignment Mechanism – John – Range and step size – Repeatability HMI 01567 – Page 12

Image Quality: Linearity – Ted • Purpose – • Requirements – • – Describe the operational status of the test article during testing and the requirements for performance measurements before, during, or following the test. Data analysis – • Describe the test setup. State how the test article, test facility, instrumentation, and test equipment will be configured and checked out prior to the actual test. Include the light input. Test plan – • Flood illuminate the CCD with the lamp source via the stim tel. (Although not available in the sun test, would cal-mode work better for this? ) Measure stability of lamp Test configuration – • Measure the CCD response as a function of exposure time, from dark to full-well. Description – • Determine the calibration necessary to correct for CCD response non-linearities, and determine the exposure limit for calibratable response. Tools, utilities Procedure – – STOL status Shop order status (created from Ryan’s template) The test timeline Defined the required test personnel and their roles and responsibilities HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 13

Alignment Mechanism: Range and Step Size – John • Purpose • Requirements • Description • Test configuration – Describe the test setup. State how the test article, test facility, instrumentation, and test equipment will be configured and checked out prior to the actual test. Include the light input. • Test plan – Describe the operational status of the test article during testing and the requirements for performance measurements before, during, or following the test. • Data analysis – Tools, utilities • Procedure – STOL status – Shop order status (created from Ryan’s template) – The test timeline – Defined the required test personnel and their roles and responsibilities HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 14

Alignment Mechanism: Repeatability – John • Purpose • Requirements • Description • Test configuration – Describe the test setup. State how the test article, test facility, instrumentation, and test equipment will be configured and checked out prior to the actual test. Include the light input. • Test plan – Describe the operational status of the test article during testing and the requirements for performance measurements before, during, or following the test. • Data analysis – Tools, utilities • Procedure – STOL status – Shop order status (created from Ryan’s template) – The test timeline – Defined the required test personnel and their roles and responsibilities HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 15

Test Plan Template • Each sun test gets its own set of charts, including as a minimum: – Purpose – Requirements – Description – Test configuration • Describe the test setup. State how the test article, test facility, instrumentation, and test equipment will be configured and checked out prior to the actual test. Include the light input. – Test plan • Describe the operational status of the test article during testing and the requirements for performance measurements before, during, or following the test. – Data analysis • Tools, utilities – Procedure • STOL status • Shop order status (created from Ryan’s template) • The test timeline • Defined the required test personnel and their roles and responsibilities HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 16

Data Processing – Jesper Schou • Science/calibration analysis • Image processing • Real-time data turnaround needed? • Facilities HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 17

Hardware Readiness – Kirkpatrick • Alignment status • Camera • Safe-to-Mate • GSE – PCU – Air-to-Vac Corrector • Air-to-vac corrector lens used with either the heliostat or the Stim-Tel to produce images in focus at the location of the CCD with the instrument in ambient pressure. – Stim-tel – Heliostat – Other GSE HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 18

Software Readiness • Topics – Flight Software – GSE – Camera – STOL – Tables HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 19

Flight Software • Mechanism control software and state machines in place for – HCMs (3 Polarization Selector mechanisms and 4 Wavelength Tuning mechanisms) – Shutters – Calibration/filter wheels • Two mechanism control software elements being completed – Alignment legs (done but possible problem with limit switches) – Front door mechanism (not needed for first sun test, problem with open/closed switches) • Sequencer – Works with hard-coded framelist – Framelist table upload in development – Initial tests will not use sequencer HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 20

GSE and Camera • LMSAL EGSE In place and ready – Release 6. 6 development – RAL GSE Camera Control Interface – PCU Control – Stimulus telescope intensity control (not done) • RAL GSE In place and ready • Camera – Development model camera control through RAL GSE from LMSAL EGSE STOL – Work-around for lack of Camera Inter. Face (CIF) board in HMI brassboard – Images have been taken through this interface and provided to Stanford for data analysis/processing – Header content needs review and expansion HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 21

Sun test STOL list Name. Status • • • • hmi_focus Done hmi_pl_wobble. Written, not tested hmi_wl_wobble Written, not tested hmi_pcu_ss_moda Written, not tested hmi_pcu_ls_modc Written, not tested ral_menu Works, needs revision ral_tp. Works, needs revision hmi_picture_loop Not written hmi_set_all_hcm_zero Needs encoder values to set HCM to hmi_set_nom_pos Needs nominal positions hmi_move_legs_to_center Not written hmi_find_center Written, needs review/demonstration hmi_set_position Not written hmi_dop_seq 5 Not written, use wl_wobble_10 table hmi_detune 27 Not written, make table? HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 22

Tables Name. Status • cal_focus • pl_wobble_10 Written, not tested • wl_wobble_10 Written, not tested • pcu_ss_moda Discuss with Greg Card, Rock, Jesper, Ralph & Roger. C • pcu_ls_modc Discuss with Greg Card, Rock, Jesper, Ralph & Roger. C HMI Sun Test Review – November 28, 2005 Done HMI 01567 – Page 23

Documentation • Test Plan – This review chart package, together with a cover sheet signature page, constitutes the Sun Test Plan (HMI 01567). • Procedures (shop orders) – The test procedures are documented in the shop orders under which all tests are carried out. No test may proceed without a signed shop order. – Shop orders signed off by: Test lead; system engineer; deputy program manager; mission assurance • Applicable Documents – HMI I&T Plan, HMI Contract Performance Spec, HMI Calibration Plan, HMI IPD • Test Reports – – – Each test lead will prepare a test report and attach it to the shop order associated with the test. Test reports explain results related to requirements and identify trended data. For any failures, discuss root cause, corrective action, and plan for retest. All test reports related to in-air calibration items are due Feb 06. All test reports related to functional test items are due Mar 06. (To support pre-environmental test review). All remaining test reports due Apr 06. HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 24

Concerns & Issues – All HMI Sun Test Review – November 28, 2005 HMI 01567 – Page 25