SU1372261A1 - Method olf determining plane position of object possessing magnetic moment - Google Patents

Abstract

The invention relates to the field of measurement technology. The method for determining the location on the plane of an object having a magnetic moment is as follows. The component of the induction of the magnetic field (MP), vertical to the plane, is measured with gauges located on the axes of the Cartesian coordinate system lying in the plane at the points with coordinates (x, y) (0,0); (d, 0); (О, - d), where d is the distance between the meters. The fourth point (THU) with coordinates (x, y) "(-HYGD, 0) is measured vertical to the plane component of the induction of the Earth's MP. The difference between each of the three components measured at three points vertical to the plane of the induction of the magnetic field and measured in the vertical vertical to the plane of the component of the Zeesha magnetic field and the dependence of the distance on the object from the distance of the object is determined. The distance between the meters is taken from the relation D d 1/3 r, where D is the diameter of the cryostat containing the meter; g | UcMo / 4Tr, 7, where B is the sensitivity of the meter; fUj, 47 10 GN / m - MS is the permeability of vacuum; Md is the magnetic moment of the object in THB. The method has a high accuracy of determination. 2 Il. "С /) кд 1О ю 05

Description

The invention; 1, the above refers to the n-measure; 1a ;; si | le technique, namely, the methods for determining the coordinates of an object possessing a magnetic moment, as measured by the pgo magnetic field, and can be used to monitor the mixing of this object.

The purpose of the invention is to improve the measurement accuracy by eliminating MeTOAtmecKoft errors and errors due to fluctuations of the Earth’s natural magnetic field.

FIG. 1 shows the location of the meter on the plane; in fig. 2 is a block diagram of one of the possible devices implementing the method.

The device contains four input converters 1–4 (), made on the basis of standard superconductor receiving loops, four detectors 5–8, made, for example, according to a well-known circuit based on SQUIDs, three subtracting devices 9–11, which can Standard differential amplifiers should be used.

Outputs are input; 1-4 transducers are used. GYUCH-: they are to the inputs of the detectors 5-8, respectively. Detectors 6-3 are connected. sug-guided gh-dam devices i-lu-ng devices 9–11 co. yy vits yyns-nno, a, children-mountain 5 - to the subtractors i-t i-rex = 1-1x 1 Lok., n:;., walk this way: by the outputs of the device.

Postav. The goal is achieved by the fact that in the method of distribution and location on an object, an object. having a magnet magnitude wm. The moment at which the vertical component is measured to the plane, the component magnet magnet, which the magnet will measure. l mz-r4 located on the axis of the Cartesian coordinate system lying in the plane at the points with coordinates (x, y) (0,0); (d.O); (0, d where d - {. Distance: I measure, select; - according to

Mula D. d --- Go 4 g De D - cryostlt containing meter,

 --- lUcMo /,; j, where В „or- pre-, full sensitivity of the meter, M5 1 A m, in addition to the fourth point with coordinate (x, y) (-10 1, 0) and it is vertical to the plane is ish is:, the instructions are tuafsh mlt N (half Zempi, then

find the difference between each of the three components measured at three points vertical to the plane of the induction of the magnetic field and measured at the fourth point vertical to the plane of the component of the magnetic field of the Earth and determine the coordinates of the object from the distance of the magnetic field.

The method is carried out as follows;

The values of the vertical components of the induction of the magnetic field are measured at three points with coordinates (0,0), (d, 0) and (0, -d). The vertical components of induction magnetic field are associated with the coordinates of the object as follows.

- || -M, “x. /),

- j n, / (x-d) /:

J / 2

,, (y.d)

where x, y are the coordinates of the object, which are determined by E, B, B, as follows

d d (a + b) (a-1) b

  b (a:;): 1Ch and

d d (a-t-bi b-a a „G G LCHA-1 G ACH-T

Where

.- 2 blia; l) (b; 1) J

(a + b)

g /

-gp

(.AT.,) .

but (,)

B, B, B, are the vertical components of the induction of the magnetic field,

They are found at the points having the coordinates (0,0), (d, 0), and (O.d), respectively.

At the fourth point, remote from riepEtrx, is the trrh for a sufficiently large distance so that, at its central point, the magnetic field of the object is much smaller than B-j (the indicated condition is removed if the fourth point is removed

at a distance of 10 g), the fourth grinder is placed, which, according to what was said, measures only the Zempi fluctuation magnetic field.

The signal of the fourth meter is tried from the signals measured at the first three points.

Claims (1)

Invention Formula A method for determining the location on the plane of an object having a magnetic moment, including measuring the vertical to the magnetic axis component of the induction of a magnetic field with gauges located on axes lying in the plane of the Cartesian coordinate system at points with coordinates (x, y) (0,0); (d, 0); (0, -d), where d is the distance between the meters, it is about that, in order to increase the accuracy, they determine the location of the object, additionally at the fourth point with coordinates (x, y) (-10 g, 0) measure vertical 0 five the component of the magnetic field of the earth, related to the plane, determines the difference between each of the magnetic components of the magnetic field induction measured at three points and the magnetic field of Sempi measured at the fourth point vertical to the plane of the magnetic field of the magnetic field. the coordinates of the object are determined, and the distance between the meters is selected from the ratio D d & | - g where D is the diameter of the cryostat containing the meter; r, —UoMo / 4TBnopl; В „op - extreme sensitivity meter; lio 4710 GN / m - magnetic permeability vacuum; MO 1Am - the magnetic moment of the object at the fourth point. FIG. one