Changes between Version 72 and Version 73 of WikiStart

Timestamp:

Oct 31, 2017, 5:34:02 PM (6 years ago)

Author:

steiger5na

Comment:

--

WikiStart

@@ -39 +39 @@
 
 === 2.2.2 Topography for the ice shelf experiments ===
+''[[Image(Channel_with_Coordinates.png, 900px)]]''
+
+''Sketch of the topography seen from above with the distances to the (0, 0) coordinate.''
+
+[[BR]][[Image(Channel_Sideview_with_Coordinates.png, 900px)]]''''
+
+Sketch of the topography seen from the side and from the end into the channel.''''
+
 == 2.3 Reference axis ==
 === 2.3.1 Reference axis for shelf break experiments ===
@@ -117 +125 @@
 
 == 4.1 Calibration for shelf break experiments ==
-The images for PIV (PC01, PC02) are calibrated from images of a horizontal grid, in 3D with an inclined grid (tilted angles) and in the vertical (NAME OF CAMERA!) for the camera fixed on the tank wall.[[BR]]The calibrated images with the grids are stored in 0_REF_FILES with the [[BR]]- 2D calibration in the directory CALIB_07_09[[BR]]- 3D calibration in the directory CALIB_07_09_3D[[BR]]- Vertical calibration in the directory CALIB_VERTICAL_08-09
+The images for PIV (PC01, PC02) are calibrated from images of a horizontal grid, in 3D with an inclined grid (tilted angles) and in the vertical (NAME OF CAMERA!) for the camera fixed on the tank wall.[[BR]]The calibrated images with the grids are stored in 0_REF_FILES/CALIB1 with the [[BR]]- 2D calibration in the directory CALIB_07_09[[BR]]- 3D calibration in the directory CALIB_07_09_3D[[BR]]- Vertical calibration in the directory CALIB_VERTICAL_08-09
 
 The images are divided into the two different cameras as PCO1/ and PCO2/.
@@ -138 +146 @@
 
 === Laser sheet calibration ===
-== Slope front experiments ==
 ||Laser setting||$H_{real}||
 ||650||55 cm||
@@ -146 +153 @@
 ||900||30 cm||
 
-== Ice front experiments ==
-||Laser setting||$H_{real}$||
-||50||14 cm||
-||200||26 cm||
-||300||35 cm||
-||500||45 cm||
-||600||53 cm||
-||700||70 cm||
-||800||79 cm||
-||850||85 cm||
-
-''[[Image(Conversion_MotorLevel_LaserSheet.png, 400px)]]''
-
-An excel sheet to calculate all heights is saved in 0_DOCS/Ice_Shelf_docs.''''
-
+[[BR]]
 ===  ===
 ===  ===
@@ -191 +184 @@
 ||T5||-4.99||-5.0||-5.0||X||
 
+==  ==
+==  ==
 == 4.2 Calibration for ice shelf experiments ==
-On the 23.10.
-
-||Rho_ref ||T_ref||T0||C0 ||C1||C2||T2 ||C4||T4||
-||998.8||20.4||1.67||-5.02 ||-4.99||-4.95 ||1.61||-4.83||-1.14||
-||999.8||20.0||2.19||-4.51||-4.12||-4.06 ||1.69 ||-3.60 ||-1.14||
-||1002.3   ||20.0  ||2.18  ||-3.32||-1.88||-1.96 ||1.72 ||-1.08||-1.10||
-||1004.5 ||21.1 ||2.39 ||-2.31  ||0.18 ||0.10||1.47 ||1.31 ||-1.23||
-
-This table is also saved on the server in 17ICESHELF/0_REF_FILES/CALIB2/Calibration_Probes_23_10.odt.[[BR]]
+The images for PIV (PC01, PC02) are calibrated from images of a  horizontal grid, in 3D with an inclined grid (tilted angles) and in the  vertical (FALCON) for the camera fixed on the tank wall.[[BR]]The calibrated images with the grids are stored in 0_REF_FILES/CALIB2 with the [[BR]]- 2D calibration in the directory CALIB_09_10_horizontal[[BR]]- 3D calibration in the directory CALIB_09_10_3D and CALIB_09_10_3D_2.[[BR]]- calibration with the grid lying on the 2% sloping topography in the directory CALIB_09_10_2percent and CALIB_09_10_2percent_with_mark.[[BR]]- Vertical calibration in the directory CALIB_27_10_vertical and CALIB_27_10_vertical_ruler.
+
+For the calibration of PCO1 and PCO2, only the 2D calibration was used, because the 3D intrinsic parameters could be taken from the shelf break experiments. 
+
+For the calibration of FALCON, the images were too dark, so three points of the topography (bottom, upper points of the V-shape) were used for the calibration.
+
+''[[Image(Channel_with_CameraPositions.png, 900px)]]''
+
+''This sketch shows the topography together with the view of the two cameras.''
+
+The   3D calibration is done with the geometric calibration function on  UVMAT  to create 'intrinsic parameters' for each camera that will be  used for  all images. Calibration points along the inclined grid are  marked and  translated from image coordinates to physical coordinates  defined in  section 2.3.1 to later take into account the different  height of slices. See http://servforge.legi.grenoble-inp.fr/projects/soft-uvmat/wiki/UvmatHelp#GeometryCalib   for details of the method. The calibration parameters are copied in a   xml file beside the folders of each camera (for instance PCO2.xml for   PCO2/). The xml files also containing all the timing information and   have to be copied next to the folders of all images, to use the same   intrinsic calibration data for each image taken with the corresponding   camera.
+
+=== Laser sheet calibration ===
+[[BR]]
+||Laser setting||$H_{real}$||
+||50||14 cm||
+||200||26 cm||
+||300||35 cm||
+||500||45 cm||
+||600||53 cm||
+||700||70 cm||
+||800||79 cm||
+||850||85 cm||
+
+''[[Image(Conversion_MotorLevel_LaserSheet.png, 400px)]]''
+
+An excel sheet to calculate all heights is saved in 0_DOCS/Ice_Shelf_docs.'''''''
+
+=== Probes calibration ===
+For  the calibration of the probes 3 measurements were done before the  experiments on the 5 probes and 4 measurements were done after. For each  C you can see in the table the voltage measured. 
+
+First calibration: Done the 23.10.2017
+
+||Rho_ref||T_ref||T0||C0||C1||C2||T2||C4||T4||
+||998.8||20.4||1.67||-5.02||-4.99||-4.95||1.61||-4.83||-1.14||
+||999.8||20.0||2.19||-4.51||-4.12||-4.06||1.69||-3.60||-1.14||
+||1002.3||20.0||2.18||-3.32||-1.88||-1.96||1.72||-1.08||-1.10||
+||1004.5||21.1||2.39||-2.31||0.18||0.10||1.47||1.31||-1.23||
+
+Second calibration: Done the 31.10.2017
+
+||Rho_ref||T_ref||T0||C0||C1||C2||T2||C4||T4||
+||998.9||19.1||3.44||-4.98||-4.93||-4.95||1.95||-4.85||-0.98||
+||999.5||19.2||3.49||-4.62||-4.4||-4.42||1.92||-4.18||-0.96||
+||1000.2||19.1||3.51||-4.27||-3.84||-3.84||1.98||3.44||-0.94||
+||1001.2||19.0||3.54||-3.83||-3.1||-3.07||1.98||-2.43||-0.93||
+||1002.1||19.1||3.55||-3.45||-2.4||-2.33||1.97||-1.5||-0.93||
+
+This tables are saved on the server in 17ICESHELF/0_REF_FILES/CALIB2/Calibration_Probes_23_10.odt and Calibration_Probes_31.10.odt[[BR]]
 
 = 5 - Good to know... =
@@ -226 +261 @@
 On Linux:
 
-- Create a tunnel on command line: ssh -L !2222:servcalcul7a:22  username@legilnx02.legi.grenoble-inp.fr[[BR]]- Install X2GoClient (Remote desktop client) and start it[[BR]]- In upper left corner, you can create a new session. The setup for the server is: Host: localhost; Login: username; SSH port: 2222[[BR]]- Once the session is created, you can click on it, enter you password and then you are working on one of the LEGI computers.[[BR]]- To copy files from the server on the private computer, you can use security copy paste in the terminal: [[BR]]scp username@!legilnx02.legi.grenoble-inp.fr:/fsnet/project/coriolis/2017/17ICESHELF/bla.txt   outputdirectory
+- Create a tunnel on command line: ssh -L !2222:servcalcul7a:22  username@legilnx02.legi.grenoble-inp.fr[[BR]]- Install X2GoClient (Remote desktop client) and start it[[BR]]- In upper left corner, you can create a new session. The setup for the server is: Host: localhost; Login: username; SSH port: 2222[[BR]]- Once the session is created, you can click on it, enter you password and then you are working on one of the LEGI computers.[[BR]]- To copy files from the server on the private computer, you can use security copy paste in the terminal: [[BR]]scp username@!legilnx02.legi.grenoble-inp.fr:/fsnet/project/coriolis/2017/17ICESHELF/bla.txt   outputdirectory
 
 On Windows: As Elin!