On the Issue of Studying the Dependence of Magnetic Fields Created by Solenoids in the Acoustic Paths of Magnetostrictive Linear Displacement Sensors on their Parameters and Changes in Distance from its Center

The article is devoted to the study of the dependences of magnetic fields created by solenoids when changing its parameters and the distance from the OZ axis relative to the center of the solenoid. Both theoretical studies and computational experiments are carried out to determine the value of the projection on the OZ axis of the magnetic field strength of the solenoid from its inner and outer radii when its length and z coordinate change relative to its center. The results of the experiment allowed us to conclude that changing the internal and external radii of the solenoid is an effective way to change the value of its tension. It was also determined that changing the length of the solenoid is a less effective way to change the value of its tension. To confirm the correctness of the mathematical model used to calculate the magnetic field strength of the solenoid, an experimental test was carried out to determine the magnetic field of the solenoid, the results of which coincided with the results of the computational experiment. Since the use of magnetostrictive sensors in many areas, including as part of robotic systems, makes it possible to increase their sensitivity, accuracy, stability and reliability, which contributes to improving the efficiency and functionality of robotic systems, the materials presented in the article are relevant and have a practical focus.