A Dynamic Calibration Method for Crusher Gauges Based on Material Testing

2007 ◽  
Vol 32 (1) ◽  
pp. 61-67 ◽  
Author(s):  
Heli Nyberg ◽  
Veli-Tapani Kuokkala ◽  
Jari Rämö ◽  
Aulis Järviniemi
Keyword(s):  
Calibration Method ◽  
Material Testing ◽  
Dynamic Calibration ◽  
Dynamic Calibration Method

scholarly journals A Dynamic Calibration Method of Installation Misalignment Angles between Two Inertial Navigation Systems

Sensors ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 2947
Author(s):  
Ming Hua ◽  
Kui Li ◽  
Yanhong Lv ◽  
Qi Wu
Keyword(s):  
Autonomous Navigation ◽  
Inertial Navigation ◽  
Calibration Method ◽  
Measurement Information ◽  
Dynamic Calibration ◽  
Navigation Systems ◽  
Inertial Navigation Systems ◽  
Additional Information ◽  
Two Systems ◽  
Dynamic Calibration Method

Generally, in order to ensure the reliability of Navigation system, vehicles are usually equipped with two or more sets of inertial navigation systems (INSs). Fusion of navigation measurement information from different sets of INSs can improve the accuracy of autonomous navigation effectively. However, due to the existence of misalignment angles, the coordinate axes of different systems are usually not in coincidence with each other absolutely, which would lead to serious problems when integrating the attitudes information. Therefore, it is necessary to precisely calibrate and compensate the misalignment angles between different systems. In this paper, a dynamic calibration method of misalignment angles between two systems was proposed. This method uses the speed and attitude information of two sets of INSs during the movement of the vehicle as measurements to dynamically calibrate the misalignment angles of two systems without additional information sources or other external measuring equipment, such as turntable. A mathematical model of misalignment angles between two INSs was established. The simulation experiment and the INSs vehicle experiments were conducted to verify the effectiveness of the method. The results show that the calibration accuracy of misalignment angles between the two sets of systems can reach to 1″ while using the proposed method.

Dynamic Calibration Method for Instrumented Laparoscopic Surgical Graspers1

2014 ◽  
Vol 8 (3) ◽  
Author(s):  
Michael Winek ◽  
Robert Sweet ◽  
Timothy M. Kowalewski
Keyword(s):  
Calibration Method ◽  
Dynamic Calibration ◽  
Dynamic Calibration Method
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