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1 James N. Bellinger 4-Feb-2009 ME+1 status and Endcap Z James N. Bellinger University of Wisconsin at Madison 4-Feb-2009.

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Presentation on theme: "1 James N. Bellinger 4-Feb-2009 ME+1 status and Endcap Z James N. Bellinger University of Wisconsin at Madison 4-Feb-2009."— Presentation transcript:

1 1 James N. Bellinger 4-Feb-2009 ME+1 status and Endcap Z James N. Bellinger University of Wisconsin at Madison 4-Feb-2009

2 2 James N. Bellinger 4-Feb-2009 Endcap Z Measurements Do we believe IR Z-sensor results? 1.MAB sensor position 2.Offsets to IR target 3.IR sensor data 4.Compare with expected

3 3 James N. Bellinger 4-Feb-2009 MAB Sensor Position Relying on Celso’s fits for the two sensor centers Extrapolate slightly to IR sensor radius— effect is small

4 4 James N. Bellinger 4-Feb-2009 Offsets to Target Calibrated numbers for distance from PG4 to base of sensor: taken from Link SDF file Thickness of skin: varies from 3.04 to 3.14mm: I use 3.14 Thickness of target: ignored

5 5 James N. Bellinger 4-Feb-2009 IR sensor Position Field Off to On changes look similar, if include dips.6.3

6 6 James N. Bellinger 4-Feb-2009 Comparing w/ Ideal Transfer Plate NameNomIdeal0T3.8TIdeal-Nom0T-Nom Y3.8T-Nom distancemeter_p1 1 6847.706847.7016847.45376848.35190.001-0.24630.6519 distancemeter_p1 2 6847.706847.70066846.39146848.70850.0006-1.30861.0085 distancemeter_p1 3 6847.706847.69956845.42896848.169-0.0005-2.27110.469 distancemeter_p1 4 6847.706847.69976851.60016852.4654-0.00033.90014.7654 distancemeter_p1 5 6847.706847.69976851.52366849.6702-0.00033.82361.9702 distancemeter_p1 6 6847.706847.70126862.7816863.56090.001215.08115.8609

7 7 James N. Bellinger 4-Feb-2009 Using PG-corrected Transfer Plate NameZPGHand 0TFit 0T Hand 3.8T Fit 3.8T Fit0- ZP G Fit3.8- ZPG Fit0- Han d0 Fit3.8- Hand3. 8 dm_p116848.486847.42 6847.453 7 68496848.3519-1.0263-0.12810.0332-0.6506 dm_p126845.736846.48 6846.391 4 6849.586848.70850.66142.9785-0.0893-0.8742 dm_p136847.536845.37 6845.428 9 6848.266848.169-2.10110.6390.0626-0.0893 dm_p146850.036851.54 6851.600 1 6852.686852.46541.57012.43540.0609-0.2138 dm_p156843.186851.11 6851.523 6 6849.756849.67028.34366.49020.4094-0.084 dm_p166847.366864.276862.7816864.046863.560915.42116.2009-1.4844-0.4755

8 8 James N. Bellinger 4-Feb-2009 Using PostCraft Tilt/Shift NameZPG Hand 0T Fit 0T Hand 3.8 T Fit 3.8TFit0-PG Fit3.8- PG Fit0-Hand0 Fit3.8- Hand3. 8 dm_p116847.406847.426847.453768496848.35190.05370.95190.0332-0.6506 dm_p126838.986846.486846.39146849.586848.70857.41149.7285-0.0893-0.8742 dm_p136841.766845.376845.42896848.266848.1693.66896.4090.0626-0.0893 dm_p146850.806851.546851.60016852.686852.46540.80011.66540.0609-0.2138 dm_p156849.886851.116851.52366849.756849.67021.6436-0.20980.4094-0.084 dm_p166853.396864.276862.7816864.046863.56099.39110.1709-1.4844-0.4755

9 9 James N. Bellinger 4-Feb-2009 Conclusions wrt Endcap Z None at the moment. Not sure if Distancemeter at Pt6 is reading correctly Not sure why the others shift so much when trying to take disk tilt into account

10 10 James N. Bellinger 4-Feb-2009 Z positions w/o Cocoa Illustrate w/o Cocoa Know MAB 2D sensor position Know distance to distancemeter Know ME1/2 2D sensor position Using chamber geometry, predict ME1/3 positions

11 11 James N. Bellinger 4-Feb-2009 ME+1 Z positions: HSLM1 Field on Position of Reference DCOPS Center 6665.74MAB +34.2675To target, calibrated+skin thickness +148.983Distancemeter distance -24.424DM dowel to DCOPS dowel, CAD -41.27DCOPS dowel to DCOPS center, CAD 6783.291Expected CMS z

12 12 James N. Bellinger 4-Feb-2009 Z Position of ME12 DCOPS center Contributions 6631.44Celso ASPD Z of chamber at PG4 3.92effect of chamber tilt 135.8offset PG4 to surface of chamber -41.35offset DCOPS dowel to surface 41.276offset DCOPS center to dowel 6771.09Expected CMS Z

13 13 James N. Bellinger 4-Feb-2009 U/D data wrt Center -0.879Reference 1.3981_3_03 outer -0.7801_3_03 inner 0.7901_2_02 reference (upside down)

14 14 James N. Bellinger 4-Feb-2009 Predicting Z at 1_3_03 Slope of laser line =.004938 Intercept = 6747.847 3_03 outer6781.552 3_03 inner6773.043 Offset to surface85.44 Surface Z at 3_03 outer6868.39 Surface Z at 3_03 inner6857.70 10.7mm change??

15 15 James N. Bellinger 4-Feb-2009 Comparing w/ PG -697.44coded target at center of 3_03 7565.6PostCraft Z center of YE+1 6868.16PG est for average (center) 6868.39My est for outer 6857.70My est for inner Outer is close to reference Suggests that outer Z is good, inner Z needs work Est changes to 6866.7 for PG if I include tilts

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