HMI01567 – Page 1HMI Sun Test Review – November 28, 2005 HMI First Sun Test Review November 28,...

HMI01567 – HMI Sun Test Review – November 28, 2005

HMIFirst Sun Test Review

November 28, 2005


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


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.

HMI01567 – HMI Sun Test Review – November 28, 2005= Sine signature= Transport HOP

SineVibration

AcousticsRandom Vibration

Cnfg I

Delivery to GSFC

40D Slack

Repeated for X-, Y-, and Z-axes

Quasi-static Loads

Cnfg II

CnfgFlight

Flight SftwrAcct Test

DevelopSW Accpt

Test

Initial SunTests

In AirCalibration

VacuumCalibration

Flight CCDDM CameraInstall ISS

BB HEB (no CIF)DM CCD, DM Camera

No ISS

AlignmentThermostats

HOP w/BBFunctional

TestAlign

HOP w/BBFunctional

TestAlign

HOPVibration

Prep

Complete Flight HOP Only - Functional Test w/ BBHEB

Flight HEB

CPTSpecial

TestEMI/EMC

PrepAliveness

TestEMI/EMC

HOP&HEBFunctional

Test

AlignSine

VibrationRandom Vibration

Repeated for X-, Y-, and Z-axes

Quasi-static Loads

HEBVibration

Prep

HEBFT

HEBFlight

ConformalCoat

HEBFT

TV/TBPrep

AlivenessTest

ThermalBalance

ThermalVacuum

CPTSpecial

Test Align

Apr 06

May 06

Jul 06 Aug 06

Mar 06

Sept 06 Nov 06

HEBFT

Nov 05

Install FltCameras

RollOver

CIFBBHEB

HMI Integration and Test Flow


HMI Instrument Test Configurations

• HMI Instrument Configuration 1– Brassboard Electronics Box

– Brassboard Cables

– Optics Package: Non-flight hardware

• Flight CCD with flight focal plane housing (one location)

• DM Camera (one location)

– Optics Package: Flight hardware

• 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)

• HMI Instrument Configuration 2– Brassboard Electronics Box

– Brassboard Cables

– Optics Package: Install flight items

• Focal plane (two)

• ISS limb sensor and preamp box

• Oven controller electronics box

• More harness

• Finish heater routing

• Install vents

• Oven thermostat

• Replace Lyot elements one and two

• Replace NB Michelson

• Tests– Initial Sun Test

– Initial Functional Tests

• Tests– ISS Testing

– CCD Alignment

– In-air calibration

– HOP Vibration testing


HMI Instrument Test Configurations

• HMI Instrument Flight Configuration– Fight electronics box

– Flight Harness

– Flight HOP

• HMI HEB Flight Configuration– Conformal coated boards in HEB

– Flight Harness

– Flight HOP

• Tests– Software Acceptance Test

– Flight CPT

– EMI/EMC Test

• Tests– HEB Vibration Test

– Vacuum Calibration

– Thermal Balance and Thermal Vacuum


Test Article Configuration for Initial Sun Test

• Optics– 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.

• Camera and Detector– DM camera electronics and flight CCD with

forward flight focal plane housing and flight-like headboard.

– No side camera.

• Thermal– Flight oven and preamp, ETU oven controller.

– No operational heater thermal control.

– No MLI.

• Mechanisms– 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.

• Mechanical– Flight structure with legs and mounting

brackets

– Non-flight HOP cover; non-flight covers in place of radiators and vents.

• Cables– Flight HCM, shutter, and cal/focus wheel

harnesses; non-flight alignment leg harness

– Non-flight CCD flex cable.

– Brassboard intra-instrument harness.

• Brassboard HEB– No CIF.

• Environment– Ambient temperature and pressure


Test Requirements – Jesper Schou

Group Property Observations Taken Lead Light SourceDistortion Filtergrams with leg offsets Jesper LampImage scale Filtergrams at all focus positions Jesper SunMTF Filtergrams at all focus positions Jesper Lamp + SunField curvature and focus Filtergrams at all focus positions Jesper Lamp + SunGhost images Filtergrams John All?Scattered light John All?Flat field Filtergrams with leg offsets Rock LampLinearity Filtergrams with different exposure times Ted Lamp

Contamination Filtergrams with different sub-apertures Jesper AllImage motions Offset and distortion Filtergrams at different HCM positions Rock Lamp

Wavelength dependence Detunes. OBS and CAL. Rock Laser + SunSpatial and angular dependence Detunes. OBS and CAL. Rock Laser + SunThroughput Filtergrams Rock SunContrast Detunes Rock Laser + Sun

Polarization All sorts of stuff Jesper Lamp + SunDoppler Todd AllLine of sight Todd AllVector Todd AllRange and step size Filtergrams John LampRepeatability John Lamp

Image quality

Filter transmission

Observables performance

Alignment mechanism


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.


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


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.)


Sun Tests

• Prepare a plan for each of the following tests, using the template on the following chart:

• Image Quality– Distortion – Jesper

– Image scale – Jesper

– MTF – Jesper

– Field curvature and focus – Jesper

– Ghost images – Rock

– Scattered light – John

– Flat field – John

– Linearity – Ted

• Contamination – Jesper

• Image offset and distortion – Rock

• Filter Transmission – Rock– Wavelength dependence

– Spatial and angular dependence

– Throughput

– Contrast

• Polarization – Jesper

• Observables – Todd– Doppler

– Line of sight

– Vector

• Alignment Mechanism – John– Range and step size

– Repeatability


Image Quality: Linearity – Ted

• Purpose– Determine the calibration necessary to correct for CCD response non-linearities, and determine the exposure

limit for calibratable response.

• Requirements– Measure the CCD response as a function of exposure time, from dark to full-well.

• Description– 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– 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


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





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





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


Data Processing – Jesper Schou

• Science/calibration analysis

• Image processing

• Real-time data turnaround needed?

• Facilities


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


Software Readiness

• Topics

– Flight Software

– GSE

– Camera

– STOL

– Tables


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


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 InterFace (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


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_seq5 Not written, use wl_wobble_10 table

• hmi_detune27 Not written, make table?


Tables

Name Status

• cal_focus Done

• pl_wobble_10 Written, not tested

• wl_wobble_10 Written, not tested

• pcu_ss_moda Discuss with Greg Card, Rock, Jesper, Ralph & RogerC

• pcu_ls_modc Discuss with Greg Card, Rock, Jesper, Ralph & RogerC


Documentation

• Test Plan– This review chart package, together with a cover sheet signature page, constitutes the the

Sun Test Plan (HMI01567).

• 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.


Concerns & Issues – All

HMI01567 – Page 1HMI Sun Test Review – November 28, 2005 HMI First Sun Test Review November 28,...

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