caltester:caltesterplus:tutorials:platform
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caltester:caltesterplus:tutorials:platform [2024/06/18 20:19] – sgranger | caltester:caltesterplus:tutorials:platform [2025/07/10 20:24] (current) – sgranger | ||
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- | {{{{{{{{{{{{{{{{====== | + | ====== |
- | in order to use the caltesterplus program you need a set of properly collected data for each force platform | + | This tutorial demonstrates how to compute |
- | ===== static trials | + | ===== Collecting CalTester Data ===== |
- | - set up your capture volume making sure that all force platforms and cameras are in the positions that they will remain in for following data collections. | + | In order to use the CalTesterPlus program you need a set of properly collected data for each force platform you wish to calibrate. Set up your capture volume making sure that all force platforms and cameras are in the positions that they will remain in for following data collections. |
- | - place the [[caltester: | + | |
- | - zero the force platform so that it will not record the force produced by the caltester base. | + | |
- | - begin the trial with the [[caltester: | + | |
- | - press down firmly on the rod with a load of at least 200 n. | + | |
- | - keep the rod aligned vertically and motionless during the trial. | + | |
- | - the trial needs to be at least 1 second long. | + | |
- | - there should be a minimum of three trial collected per force platform. ideally there should be 8 or more, with at least one near each corner of the force platform and one near the center of the force platform. | + | |
- | * each example | + | Then, to collect a motion trial for the report mode: |
+ | - Place the [[CalTester: | ||
+ | - Zero the force platform so that it will not record the force produced by the CalTester base. | ||
+ | - Begin the trial with the [[CalTester: | ||
+ | - Press down firmly on the Rod with a load of at least 200 N. | ||
+ | - Keep the Rod aligned vertically and motionless during the trial. | ||
+ | - The trial needs to be at least 1 second long. | ||
+ | - There should be a minimum of three trial collected per force platform. Ideally there should be 8 or more, with at least one near each corner of the force platform and one near the centre of the force platform. | ||
- | ====== compute platform pose ====== | + | **Note**: Each example motion trial that is downloaded with the CalTesterPlus program meets these criteria. |
- | computing the platform pose gives you a written report of the force platform' | + | ===== Compute Platform Pose ===== |
- | **1. use the add button at the top right-hand side of the screen to load all of the .c3d files that you want to use to create a report from, and select them by highlighting them. for the sample data we will be using the files " | + | Computing |
- | platformtutorial1.png | + | 1. Use the add button |
- | **2. make sure that you are on the platform tab at the bottom section | + | |
- | (a) check that you have selected the force platform number that corresponds | + | |
- | (b) check the use specified platform dimensions if you have inputted the force platform sizes into the fp size tab. if the force plate size has been specified before, select the desired fp, if not, please select the desired plate before completing step 6 of this tutorial.\\ | + | |
- | (c) check that the minimum valid force is set to 100 n.\\ | + | |
- | (d) do not check "update selected template instead of updating corners", | + | |
- | (e) click on the options button at the bottom of the screen.\\ | + | |
+ | {{: | ||
- | platformtutorial2.png | + | 2. Make sure that you are on the Platform tab at the bottom section of the screen. |
- | **3. check the caltester rod labels: | + | - Check that you have selected |
- | (a) if the caltester rod is not already labeled click the guess combinations button.\\ | + | - Check the Use Specified Platform Dimensions |
- | (b) verify | + | - Check that the Minimum valid force is set to 100 N. |
+ | - Do not check " | ||
+ | - Click on the Options button at the bottom of the screen. | ||
- | platformtutorial4.png | + | {{: |
- | **5. check that the dimensions of the caltester rod are correct.** | + | |
- | if you are using the sample data or the caltester | + | 3. Check the CalTester |
- | if you have made your own rod you will need to enter the correct measurements. see [[caltester: | + | |
- | platformtutorial5.png | + | - Verify that the CalTester Rod has been appropriately labeled. The proper labeling |
- | **6. enter the size of your force platforms into the fp size tab.**\\ | + | |
- | (a) if not fp exists, click "add new force" to populate the list box\\ | + | |
- | (b) select the desired fp (fp1 for this tutorial)\\ | + | |
- | (c) enter the correct dimensions of your force platforms from the manufacturer' | + | |
- | (d) click " | + | |
+ | {{: | ||
- | if you do not enter the size of your force platform, | + | 4. Check that the dimensions |
- | platformtutorial7.png | + | - If you are using the sample data or the CalTester Rod manufactured by [[http:// |
- | **6. ensure | + | - If you have made your own rod you will need to enter the correct measurements. See [[CalTester: |
- | (a) **if the fp size was specified** , ensure the desired fp is selected in the drop down (fp1 in this tutorial).\\ | + | |
+ | {{: | ||
- | caltester_fpc_finalinputpage.png | + | 5. Enter the size of your force platforms into the FP size tab. |
- | **7. click on the go button at the bottom | + | - If not FP exists, |
+ | - Select | ||
+ | - Enter the correct dimensions | ||
+ | - Click " | ||
+ | **Note**: If you do not enter the size of your force platform, the C3D corners are used to estimate the size. | ||
- | caltester_go.png | + | {{: |
- | **8. the program will ask you where you want to save the text file that has been created with the outputs.**\\ | + | |
+ | 6. Ensure the desired C3D trials are still selected, and the settings on the main tab are correct. | ||
+ | - If the FP size was specified** , ensure the desired FP is selected in the drop down (FP1 in this tutorial). | ||
- | platformtutorial8.png | + | {{: |
- | **9. the text file should contain a readout similar to what was produced below from the sample files.**\\ | + | |
+ | 7. Click on the Go button at the bottom of the screen. | ||
- | output | + | {{: |
- | ======== | + | |
- | corner | + | 8. The program will ask you where you want to save the text file that has been created with the outputs. |
- | corner | + | |
- | corner | + | {{: |
- | corner | + | |
- | force platform | + | 9. The text file should contain a readout similar to what was produced below from the sample files. |
+ | |||
+ | < | ||
+ | Output | ||
+ | ======== | ||
+ | Corner | ||
+ | Corner | ||
+ | Corner | ||
+ | Corner | ||
+ | Force platform | ||
265.3435, 314.9799, -27.2984 | 265.3435, 314.9799, -27.2984 | ||
=============================================== | =============================================== | ||
- | rotation matrix | + | Rotation Matrix |
-0.006945 0.999974 -0.001941 | -0.006945 0.999974 -0.001941 | ||
0.999973 0.006940 -0.002496 | 0.999973 0.006940 -0.002496 | ||
-0.002482 -0.001958 -0.999995 | -0.002482 -0.001958 -0.999995 | ||
- | cardan | + | Cardan |
- | angle 1 (x): 179.857 | + | Angle 1 (x): 179.857 |
- | angle 2 (y): -0.111219 | + | Angle 2 (y): -0.111219 |
- | angle 3 (z): -89.6019 | + | Angle 3 (z): -89.6019 |
- | cardan | + | Cardan |
- | angle 1 (x): 179.888 | + | Angle 1 (x): 179.888 |
- | angle 2 (y): -0.142226 | + | Angle 2 (y): -0.142226 |
- | angle 3 (z): -89.6019 | + | Angle 3 (z): -89.6019 |
- | nexus orientation parameters: | + | Nexus orientation parameters: |
-0.199561 | -0.199561 | ||
-0.024245 | -0.024245 | ||
-89.6022 | -89.6022 | ||
- | **10. this data can now be inputted into the data collection software you are using in order to optimize the force platform location.** | + | </ |
+ | 10. This data can now be inputted into the data collection software you are using in order to optimize the force platform location. | ||
- | }}}}}}}}}}}}}}}} |
caltester/caltesterplus/tutorials/platform.1718741965.txt.gz · Last modified: 2024/06/18 20:19 by sgranger