METHOD OF LOCATING THE POSITION OF LINEAR OBJECTS

摘要

A method of locating a position of a linear object, including arranging a first and a second reactor around a measuring point, the first reactor generating an induced voltage corresponding to an X-direction component of a magnetic field, the X direction perpendicular to a running direction of the object, and the second reactor generating an induced voltage corresponding to a Y-direction component of the field, the Y direction perpendicular to the X-direction and the running direction; obtaining a first reactor induced voltage and a second reactor induced voltage; setting an X-distance as a first distance from the point to the object center, and setting the Y-distance as a second distance; and estimating a direction in which the linear object is located as viewed from the point, by regarding an X-distance to Y-distance ratio as equal to a ratio of the first voltage to the second voltage multiplied by a coefficient.

主权项

1. A method of locating the position of a linear object on the basis of an alternating field located at a measuring point spaced away from the linear object, wherein a miming direction of the linear object is known, and an alternating field is generated in the circumference, the method comprising:
arranging a first and a second reactor around the measuring point, the first reactor generating an induced voltage corresponding to an X-direction component of a magnetic field, the X direction being perpendicular to the running direction of the linear object, and the second reactor generating an induced voltage corresponding to a Y-direction component of the magnetic field, the Y direction being perpendicular both to the X-direction component and to the running direction of the linear object; obtaining a first reactor voltage induced by the alternating field in the first reactor and a second reactor voltage induced by the alternating field in the second reactor; setting an X-distance as a first distance from the measurement point to a center of the linear object, and setting the Y-distance as a second distance from the measurement point to the center of the linear object; and estimating a direction in which the linear object is located as viewed from the measurement point, by regarding a ratio of the X-distance to the Y-distance as equal to a ratio of the first reactor voltage to the second reactor voltage multiplied by a certain coefficient.