CN112782618A - Device and method for detecting magnetic field parameter calculation value of dipolar electromagnet - Google Patents
Device and method for detecting magnetic field parameter calculation value of dipolar electromagnet Download PDFInfo
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- CN112782618A CN112782618A CN202110103449.0A CN202110103449A CN112782618A CN 112782618 A CN112782618 A CN 112782618A CN 202110103449 A CN202110103449 A CN 202110103449A CN 112782618 A CN112782618 A CN 112782618A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/0023—Electronic aspects, e.g. circuits for stimulation, evaluation, control; Treating the measured signals; calibration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/07—Hall effect devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/10—Plotting field distribution ; Measuring field distribution
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
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Abstract
The invention discloses a device and a method for detecting a magnetic field parameter calculated value of a dipolar electromagnet, wherein a Hall measuring head motion system is used for establishing a theoretical coordinate system, a Hall measuring head tracking system is used for establishing an actual coordinate system, a reflecting target ball and a Hall sensor are fixed on a measuring head substrate, and the geometric centers of the Hall sensor and the Hall ball are positioned on a plumb line of a sphere center of the reflecting target ball, so that the coordinate values of the reflecting target ball and the Hall sensor on a Y axis and a Z axis are equal in the theoretical coordinate system or the actual coordinate system, and the difference of a height difference value H only exists on the Z axis. Therefore, when the hall sensor moves in the air gap of the magnet of the two-pole electromagnet to be measured, the coordinate value of the hall sensor can be measured by the hall probe tracking system in the actual coordinate system Frame2, so that the error between the theoretical track and the actual track of the hall sensor is judged, and the calculated value of the magnetic field parameter of the two-pole electromagnet is corrected according to the error allowable range.
Description
Technical Field
The invention relates to a device and a method for detecting a calculated value of a magnetic field parameter of a dipolar electromagnet.
Background
In the design operation of the particle accelerator, the constraint of the particle transmission path is mainly realized by designing the magnetic field of the dipolar electromagnet, and the magnetic field parameters of the deflection selected by the magnetic field design of the dipolar electromagnet in the particle accelerator are all calculated values of an ideal state. However, in the actual manufacturing of the two-pole electromagnet, systematic errors, such as machining errors of the iron core, winding errors of the coil, or assembly errors of the combined magnet, are inevitable, and these errors cause the actual magnetic field parameters and geometric characteristics of the two-pole electromagnet to be different from the designed values.
In the process of designing the magnetic field parameters of the two-pole electromagnet, a detector provided with a Hall sensor for measuring the magnetic field is generally called a Hall measuring head, the motion track of the existing Hall measuring head in the air gap of the magnet is also obtained by calculating the design parameters of the two-pole electromagnet, and the difference between the design parameters of the two-pole electromagnet and the real magnetic field parameters cannot be judged since the actual motion track of the Hall measuring head is only reported. However, under the influence of external factors, it often happens that the hall probe motion profile designed according to theoretical calculations does not match the actual motion profile of the hall probe. The difference between the real magnetic field parameters and the calculated parameters of the dipolar electromagnet can directly influence the precision of the motion track of the Hall measuring head in the magnet air gap, and can also cause the deviation of the magnetic field center or the change of the deflection angle of the particles, thereby causing the deviation of the particle beam center track or the increase of the emission angle, and further directly reducing the precision of the motion track of the particles in the particle accelerator. Therefore, it is necessary to correct the calculated value of the magnetic field parameter of the two-pole electromagnet by the measured value of the movement locus of the hall probe in the air gap of the magnet.
Disclosure of Invention
The invention aims to provide a device and a method for checking a calculated value of a magnetic field parameter of a dipolar electromagnet, which are used for solving the problem of correcting errors between a theoretical design value and an actual value of the magnetic field parameter of the dipolar electromagnet by measuring the motion track of the existing Hall measuring head in a magnet air gap.
The invention provides a device for checking a calculated value of a magnetic field parameter of a dipolar electromagnet, which comprises: the Hall probe is internally provided with a Hall sensor; the Hall measuring head motion system comprises a three-dimensional rectangular coordinate mechanism, a driving mechanism and a motion controller, wherein the three-dimensional rectangular coordinate mechanism forms a theoretical coordinate system Frame1 consisting of an X axis, a Y axis and a Z axis, and is in butt joint with the Hall measuring head; the driving mechanism realizes the motion of the Hall measuring head in a three-dimensional space by controlling the three-dimensional rectangular coordinate mechanism; the motion controller is connected with the driving mechanism through a signal wire; the motion controller is connected with the Hall sensor through a signal wire; the Hall measuring head tracking system comprises a space analyzer, a laser tracker and a reflecting target ball, wherein the reflecting target ball is arranged in the Hall measuring head, and the geometric center of the Hall sensor and the spherical center of the reflecting target ball are positioned on the same plumb line; the laser tracker and the reflection target ball are in a range capable of tracking in real time; the space analyzer is electrically connected with the laser tracker; the Hall measuring head is arranged in an air gap of the two-pole electromagnet to be measured; the motion controller provides a current signal for the Hall sensor, and the motion controller controls the speed of the Hall sensor and the position of the Hall sensor in an air gap of the two-pole electromagnet to be detected through the driving mechanism; the hall probe tracking system establishes an actual coordinate system Frame2 that can mark the hall probe by tracking the reflective target ball.
Preferably, the system further comprises a user computer, and the motion controller and the space analyzer are both connected with the user computer.
Preferably, the hall probe motion system further comprises a base, the three-dimensional rectangular coordinate mechanism comprises a horizontal coordinate rod, a vertical coordinate rod and a probe rod, the horizontal coordinate rod is horizontally arranged on the base, and the horizontal coordinate rod can slide left and right on the base along a straight line; the vertical coordinate rod is vertically arranged on the horizontal coordinate rod, and the vertical coordinate rod can slide back and forth on the horizontal coordinate rod along a straight line; the probe rod is horizontally arranged on the longitudinal coordinate rod and can slide up and down on the longitudinal coordinate rod along a straight line; the horizontal coordinate rod, the vertical coordinate rod and the probe rod are mutually vertical to form a theoretical coordinate system Frame1 consisting of an X axis, a Y axis and a Z axis.
Preferably, the driving mechanism comprises an X-axis motor, a Y-axis motor and a Z-axis motor, and an output shaft of the X-axis motor is in transmission connection with the abscissa rod and is used for controlling the abscissa rod to slide left and right on the base along a straight line; the output shaft of the Y-axis motor is in transmission connection with the vertical coordinate rod and is used for the vertical coordinate rod to slide back and forth on the horizontal coordinate rod along a straight line; the output shaft of the Z-axis motor is in transmission connection with the probe rod and is used for the probe rod to slide up and down on the longitudinal coordinate rod along a straight line; the X-axis motor, the Y-axis motor and the Z-axis motor are respectively connected with the motion controller through signal lines, and when the motion controller respectively controls the X-axis motor, the Y-axis motor and the Z-axis motor to be started, the horizontal coordinate rod, the vertical coordinate rod and the probe rod move on output shafts of the motors respectively, so that the Hall measuring head can move in a three-dimensional space.
Preferably, the hall probe comprises a probe base body, the probe base body comprises a sleeve portion and a target ball rod portion, the sleeve portion and the end portion of the target ball rod portion are in butt joint and integrally formed, and the probe rod is in butt joint with the sleeve portion of the probe base body; the outer end tip of target ball pole portion is equipped with hall sensor groove, hall sensor set up in the hall sensor groove, motion control ware with hall sensor is connected through the signal line.
Preferably, hall gauge head tracker still includes reflection target ball fixing device, reflection target ball fixing device includes target ball fixed band and horizontal clamp plate, the horizontal clamp plate level set up in the upper surface of target ball pole portion and with hall sensor contacts, reflection target ball set up in the outer end of horizontal clamp plate, reflection target ball is located directly over hall sensor just hall sensor's geometric center with the centre of sphere of reflection target ball is located same plumb line.
Preferably, the horizontal pressing plate is horizontally arranged on the upper surface of the target ball rod part, and the lower surface of the outer end of the horizontal pressing plate is in contact with the Hall sensor; the upper surface of the outer end of the horizontal pressing plate protrudes upwards to form a protruding part, the upper surface of the protruding part is a concave cambered surface, and the protruding part is positioned right above the Hall sensor; the reflection target ball is arranged in a concave arc surface of the convex part of the horizontal pressing plate.
Preferably, the hall probe tracking system further comprises a target ball fixing band, the target ball fixing band is bound on the reflection target ball, and two ends of the target ball fixing band are fixed on the horizontal pressing plate or the target ball rod part.
The invention also discloses a method for checking the calculated value of the magnetic field parameter of the two-pole electromagnet, which adopts the checking device of the calculated value of the magnetic field parameter of the two-pole electromagnet, before the method is implemented, the height difference H between the sphere center of the reflecting target ball and the geometric center of the Hall sensor needs to be calibrated, and the method comprises the following steps:
step S1: calculating a theoretical track of the Hall sensor in an air gap of the dipolar electromagnet to be detected according to the dipolar electromagnet to be detected and the relative position relationship between the dipolar electromagnet to be detected and the Hall sensor;
step S2: designing track points A1, A2, … and An of the Hall measuring head and current values of corresponding specified points according to the calculated theoretical track of the Hall measuring head in the air gap of the two-pole electromagnet to be measured;
step S3: starting a Hall measuring head motion system to enable the Hall measuring head to reach a track point A1, and transmitting a current value to the Hall sensor through a motion controller;
step S4: starting a Hall measuring head tracking system, recording the coordinates F (x ', y', z ') of a reflecting target ball by a laser tracker, and converting the actual coordinates E (x', y ', z' + H) of the Hall sensor in a track point A1 by a space analyzer according to the spatial relationship between the reflecting target ball and the Hall sensor;
step S5: repeating the steps S3 to S4 until all the actual coordinates of the Hall sensor on the track points A2, … and An are collected;
step S6: designing theoretical tracks of Hall sensors in An air gap of a dipolar electromagnet to be measured into track points A1, A2 and … of a Hall measuring head, connecting theoretical coordinates of An into theoretical track lines, connecting actual coordinates of the Hall sensors in the track points A1, A2 and … into actual track lines, analyzing and comparing data and graphs of the theoretical track lines and the actual track lines, judging errors between the theoretical tracks and the actual measurement tracks of the Hall sensors, and correcting magnetic field parameter calculation values of the dipolar electromagnet according to An error allowable range.
Compared with the prior art, the invention has the beneficial effects that:
the invention discloses a device and a method for detecting a magnetic field parameter calculated value of a dipolar electromagnet, wherein a Hall measuring head motion system is used for establishing a theoretical coordinate system, a Hall measuring head tracking system is used for establishing an actual coordinate system, a reflecting target ball and a Hall sensor are fixed on a measuring head substrate, and the geometric centers of the Hall sensor and the Hall ball are positioned on a plumb line of a sphere center of the reflecting target ball, so that the coordinate values of the reflecting target ball and the Hall sensor on a Y axis and a Z axis are equal in the theoretical coordinate system or the actual coordinate system, and the difference of a height difference value H only exists on the Z axis. Therefore, when the hall sensor moves in the air gap of the magnet of the two-pole electromagnet to be measured, the coordinate value of the hall sensor can be measured by the hall probe tracking system in the actual coordinate system Frame2, so that the error between the theoretical track and the actual track of the hall sensor is judged, and the calculated value of the magnetic field parameter of the two-pole electromagnet is corrected according to the error allowable range.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus for checking a calculated value of a magnetic field parameter of a dipolar electromagnet according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a hall probe movement system with a hall probe and a reflective target ball thereof according to embodiment 1 of the present invention;
fig. 3 is a side view of a hall probe with a reflective target ball according to embodiment 1 of the present invention;
fig. 4 is a top view of a hall probe with a reflective target ball according to embodiment 1 of the present invention;
fig. 5 is a side view of a base body of a hall probe according to embodiment 1 of the present invention;
fig. 6 is a plan view of a base body of a hall probe according to embodiment 1 of the present invention;
fig. 7 is a schematic view of an internal structure of the device for checking the calculated value of the magnetic field parameter of the dipolar electromagnet according to embodiment 1 of the present invention.
Detailed Description
The invention provides a device and a method for detecting a calculated value of a magnetic field parameter of a dipolar electromagnet.A Hall measuring head motion system is used for establishing a theoretical coordinate system Frame1, a Hall measuring head tracking system is used for establishing an actual coordinate system Frame2, and because a reflecting target ball and a Hall sensor are fixed on a measuring head base body, and the geometric centers of the Hall sensor and the Hall sensor are positioned on a plumb line of the sphere center of the reflecting target ball, no matter in the theoretical coordinate system Frame1 or the actual coordinate system Frame2, the coordinate values on the Y axis and the Z axis of the reflecting target ball and the Hall sensor are equal, and the difference of a height difference value H only exists on the Z axis. Therefore, when the hall sensor moves in the air gap of the magnet of the two-pole electromagnet to be measured, the coordinate value of the hall sensor can be measured by the hall probe tracking system in the actual coordinate system Frame2, so that the error between the theoretical track and the actual track of the hall sensor is judged, and the calculated value of the magnetic field parameter of the two-pole electromagnet is corrected according to the error allowable range.
Example 1
Referring to fig. 1, 2 and 7, the device for checking the calculated value of the magnetic field parameter of the two-pole electromagnet includes a hall probe 1, a hall probe motion system 2, a hall probe tracking system 3 and a user computer 4, wherein the hall probe 1 is disposed in the magnet air gap of the two-pole electromagnet 5 to be measured, so that the hall sensor 11 inside the hall probe 1 can sense the magnetic induction intensity in the two-pole electromagnet 5 to be measured, and accordingly, the calculated value of the magnetic field parameter of the two-pole electromagnet 5 to be measured is corrected.
Referring to fig. 3 and 4, the hall probe 1 includes a probe base 10, and a hall sensor 11 is provided inside the probe base 10.
Referring to fig. 5 and 6, the stylus base body 10 includes a sleeve portion 12 and a target ball rod portion 13, the ends of the sleeve portion 12 and the target ball rod portion 13 are integrally formed by butt joint, wherein the sleeve portion 12 is used for butt joint with the probe rod 223 of the hall stylus motion system 2, and the outer end of the target ball rod portion 13 is used for arranging the hall sensor 11 and the reflective target ball 32 of the hall stylus tracking system 3.
In order to install the hall sensor 11, the end of the outer end of the target ball rod part 13 is provided with a hall sensor groove 110, and the hall sensor 11 is arranged in the hall sensor groove 110.
In order to supply current to the hall sensor 11, the motion controller 20 is connected to the hall sensor 11 via a signal line. Specifically, a slot 100 is formed in the upper surface of the target ball portion 13, and two ends of the slot 100 are respectively communicated with the hall sensor slot 110 and the interior of the sleeve portion 12. A signal line is installed in the wire slot 100, the current received by the hall sensor 11 is derived from the motion controller 20, and the magnitude of the current value is controlled by the motion controller 20.
With continued reference to fig. 1 and 2, the hall probe motion system 2 includes a base 21, a three-dimensional rectangular coordinate mechanism 22, a drive mechanism, and a motion controller 20.
The three-dimensional rectangular coordinate mechanism 22 includes a abscissa bar 221, an ordinate bar 222 and a probe 223,
the abscissa rod 221 is horizontally disposed on the base 21, and the abscissa rod 221 can slide left and right on the base 21 along a straight line, where the left and right sliding direction refers to the X-axis direction in fig. 1;
the ordinate bar 222 is vertically disposed on the abscissa bar 221, and the ordinate bar 222 can slide back and forth on the abscissa bar 221 along a straight line, where the back and forth sliding direction refers to the Y-axis direction in fig. 1;
the probe 223 is horizontally disposed on the ordinate rod 222, and the probe 223 can slide up and down on the ordinate rod 222 along a straight line, where the up-down sliding direction refers to the Z-axis direction in fig. 1.
The abscissa rod 221, the ordinate rod 222 and the probe rod 223 are perpendicular to each other, and together form a theoretical coordinate system Frame1 composed of an X axis, a Y axis and a Z axis and used for simulating an ideal state, and the theoretical coordinate system Frame1 is a three-dimensional rectangular coordinate system.
The driving mechanism comprises an X-axis motor, a Y-axis motor and a Z-axis motor, wherein,
the output shaft of the X-axis motor is in transmission connection with the abscissa rod 221, and is used for controlling the abscissa rod 221 to slide left and right on the base 21 along a straight line. As a specific embodiment, the X-axis motor may be fixed in the base 21, and an output shaft of the X-axis motor is disposed along the X-axis direction, the output shaft of the X-axis motor is a full-thread screw, a bolt is fixed at the bottom of the horizontal coordinate rod 221, and the bolt at the bottom of the horizontal coordinate rod 221 is in threaded connection with the output shaft of the X-axis motor.
The Y-axis motor output shaft is drivingly connected to the ordinate rod 222 for sliding the ordinate rod 222 back and forth along a straight line on the abscissa rod 221. As a specific embodiment, the Y-axis motor may be fixed in the abscissa rod 221, an output shaft of the Y-axis motor is arranged along the Y-axis direction, the output shaft of the Y-axis motor is a full-thread screw, a bolt is fixed at the bottom of the ordinate rod 222, and the bolt at the bottom of the ordinate rod 222 is in threaded connection with the output shaft of the Y-axis motor.
The output shaft of the Z-axis motor is in transmission connection with the probe 223 and is used for the probe 223 to slide up and down along a straight line on the ordinate rod 222. As a specific embodiment, the Z-axis motor may be fixed in the ordinate bar 222, and an output shaft of the Z-axis motor is disposed along the Z-axis direction, an output shaft of the Y-axis motor is a full-thread screw, a bolt is fixed at the bottom of the probe 223, and the bolt at the bottom of the probe 223 is in threaded connection with the output shaft of the Y-axis motor.
The X-axis motor, the Y-axis motor and the Z-axis motor are respectively connected with the motion controller 20 through signal lines, when the motion controller 20 respectively controls the X-axis motor, the Y-axis motor and the Z-axis motor to start, the bolt at the bottom of the abscissa rod 221, the bolt at the bottom of the ordinate rod 222 and the bolt at the bottom of the probe rod 223 respectively drive the abscissa rod 221, the ordinate rod 222 and the probe rod 223 to move on output shafts of the motors respectively, and therefore the motion of the probe rod 223 in three-dimensional space along the X-axis direction, the Y-axis direction and the Z-axis direction is controlled.
The three-dimensional rectangular coordinate mechanism 22 is butted against the hall probe 1, and specifically, the probe rod 223 of the three-dimensional rectangular coordinate mechanism 22 is butted against the sleeve portion 12 of the probe base body 10 of the hall probe 1. Therefore, the motion controller 20 controls the driving mechanism to further control the position and the speed of the Hall probe 1 in the magnet air gap of the dipolar electromagnet 5 to be measured.
Referring to fig. 1 and 3, the hall probe tracking system 3 includes a spatial analyzer 30, a laser tracker 31, a reflective target ball 32, a reflective target ball fixture 33,
the reflective target ball holding means 33 comprises a target ball holding band 331 and a horizontal pressing plate 332,
first, in order to ensure that the horizontal pressing plate 332 can be kept horizontal, the upper surface of the target ball bar portion 13 is designed to be a rectangular plane. The horizontal press plate 332 is horizontally arranged on the upper surface of the target ball rod part 13 and is in contact with the Hall sensor 11, the reflection target ball 32 is arranged at the outer end of the horizontal press plate 332, the reflection target ball 32 is positioned right above the Hall sensor 11, and the geometric center of the Hall sensor 11 and the spherical center of the reflection target ball 32 are positioned on the same plumb line.
As a specific embodiment, the horizontal pressing plate 332 is horizontally arranged on the upper surface of the target ball rod part 13 and covers the slot 100, and the lower surface of the outer end of the horizontal pressing plate 332 is in contact with the hall sensor 11; the upper surface of the outer end of the horizontal pressure plate 332 protrudes upwards to form a protruding part 3320, the upper surface of the protruding part 3320 is set to be a concave arc surface, and the protruding part 3320 is located right above the hall sensor 11. The reflecting target ball 32 is placed in the concave arc surface of the convex part 3320 of the horizontal pressing plate 332, and the geometric center of the hall sensor 11 and the spherical center of the reflecting target ball 32 are positioned on the same vertical line.
In order to fix the reflection target ball 32, the target ball fixing band 331 is bound to the reflection target ball 32 and both ends of the target ball fixing band 331 are fixed to the horizontal pressing plate 332 or the target ball rod portion 13.
In order to make the spherical surface of the reflecting target ball 32 perfectly fit when contacting the concave curved surface of the convex portion 3320 of the horizontal pressing plate 332, the radius of the spherical surface of the reflecting target ball 32 and the radius of the concave curved surface of the convex portion 3320 are both 0.5 inch. Specifically, the reflective target Ball 32 may be a 0.5 inch ceramic target Ball (abbreviated as RFI under the english name of Reflectors for Fixed insertion) or a 0.5 inch aluminum target Ball (abbreviated as TBR under the english name of firing Ball Reflector).
As a specific embodiment for ensuring that the geometric center of the hall sensor 11 is located on the vertical line of the sphere center of the reflective target sphere 32, so as to provide the assembly accuracy between the positioning horizontal pressing plate 332 and the probe base body 10, a plurality of positioning holes 140 are disposed on two sides of the slot 100 on the upper surface of the target sphere rod portion 13, a plurality of positioning pins 14 penetrate through the horizontal pressing plate 332 and are inserted into the plurality of positioning holes 140 of the probe base body 10 to fixedly connect the target sphere rod portion 13 and the horizontal pressing plate 332, and the plurality of positioning pins 14 and the plurality of positioning holes 140 on the target sphere rod portion 13 respectively correspond to each other one by one, so as to ensure that the lowest point of the concave arc surface of the convex portion 3320 of the horizontal pressing plate 332 and the geometric center of the hall sensor 11 are located.
The laser tracker 31 is used in conjunction with the spatial analyzer 30, and can construct an actual coordinate system Frame2 by reflecting the target balls 32, wherein the X ', Y ', and Z ' axes of the actual coordinate system Frame2 are respectively parallel to the X, Y, and Z axes of the theoretical coordinate system Frame 1. Since the reflective target ball 32 and the hall sensor 11 are fixed to the probe base 10, and the geometric centers of the hall sensors 11 are located on the vertical line of the center of the reflective target ball 32, the coordinate values of the reflective target ball 32 and the hall sensor 11 on the Y axis and the Z axis are equal in both the theoretical coordinate system Frame1 and the actual coordinate system Frame2, and there is a difference in height difference H only on the Z axis. Therefore, when the hall sensor 11 moves in the magnet air gap of the dipolar electromagnet 5 to be measured, the coordinate value of the hall sensor 11 can be measured by the hall probe tracking system 3 in the actual coordinate system Frame 2.
The establishment of the coordinate system by using the laser tracker is a mature technology, and for example, the chinese patent application No. cn201110286506.x, the method for establishing the geographical coordinate system by using the laser tracker, and the method for establishing the geographical coordinate system based on the laser tracker, published in the journal of mechanical manufacturing 2015, 10 th time, are recorded in related methods.
As a specific embodiment, the Spatial Analyzer 30 employs Spatial Analyzer software. The Spatial Analyzer software is a very mature space Analyzer in the market, is a 3D metering software designed and developed by the New River dynamics company in the united states and applied to engineering measurement and calculation, and can be connected with engineering measuring instruments mainstream in the market through an intuitive visual interface, for example: the system comprises a laser tracker, a laser total station, an optical scanner, a portable three-coordinate measuring arm and the like, has powerful and rich space element construction and calculation functions, supports various mainstream CAD format leading-in and point cloud file analysis and calculation, and has an original Uniform Space Measurement Network (USMN) adjustment function and a measurement planning and planning (MP) function.
It should be noted that, the laser tracker 31 is installed according to the size and shape of the dipolar electromagnet to be measured, and the installation position of the laser tracker 31 satisfies the following conditions: when the reflective target ball 32 moves along with the hall sensor 11 in the air gap of the dipolar electromagnet to be measured, the laser tracker 31 is in the range capable of tracking the reflective target ball 32 in real time.
The horizontal press plate 332 is made of organic glass, and the length and the width of the horizontal press plate are respectively corresponding to the upper surface size of the target sphere rod part 13 of the probe substrate 10; the probe base body 10 is made of high-density epoxy resin, the sleeve portion 12 is a cylinder, and the target ball rod portion 13 is a semi-cylinder or a cuboid.
The base 21 of the hall probe motion system 2 is made of marble, and the probe rod 223 is made of carbon fiber.
Example 2
Embodiment 2 provides a method for checking the calculated value of the magnetic field parameter of the two-pole electromagnet according to embodiment 1, wherein the height difference H between the center of the target ball 32 and the geometric center of the hall sensor 11 is calibrated before the method is implemented, and the method comprises the following steps:
step S1: calculating a theoretical track of the Hall sensor 11 in an air gap of the dipolar electromagnet 5 to be detected according to the dipolar electromagnet 5 to be detected and the relative position relationship between the dipolar electromagnet 5 to be detected and the Hall sensor 11;
step S2: designing track points A1, A2, … and An of the Hall measuring head 1 and current values of corresponding specified points according to the calculated theoretical track of the Hall measuring head 1 in the air gap of the two-pole electromagnet 5 to be measured;
step S3: starting the Hall measuring head motion system 2 to enable the Hall measuring head 1 to reach a track point A1, and transmitting a current value to the Hall sensor 11 through the motion controller 20;
step S4: starting the Hall measuring head tracking system 3, recording the coordinates F (x ', y', z ') of the reflecting target ball 32, and converting the actual coordinates E (x', y ', z' + H) of the Hall sensor 11 in the track point A1 by the space analyzer 30 according to the space relation between the reflecting target ball 32 and the Hall sensor 11;
step S5: repeating the steps S3 to S4 until all the actual coordinates of the Hall sensor 11 at the track points A2, … and An are collected;
step S6: designing theoretical tracks of the Hall sensor 11 in An air gap of a dipolar electromagnet 5 to be detected into track points A1, A2, … and An of the Hall measuring head 1, connecting actual coordinates of the Hall sensor 11 in the track points A1, A2, … and An into actual tracks, analyzing and comparing data and graphs of the theoretical tracks and the actual tracks, judging errors between the theoretical tracks and the actual tracks of the Hall sensor 11, and correcting a magnetic field parameter calculation value of the dipolar electromagnet according to An error allowable range.
One method for judging whether the error between the theoretical track and the actual measurement track of the hall sensor 11 exceeds the error allowable range is that the error allowable range is as follows: less than 0.5% o of the theoretical trajectory;
(1) if the error is within the allowable range, the next process can be carried out, such as compensation and correction of the magnet iron core and the like;
(2) if the error tolerance is exceeded, it is necessary to check whether the calculated theoretical measurement trajectory is correct.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. A device for checking the calculated value of the magnetic field parameter of a dipolar electromagnet is characterized by comprising
The Hall probe (1) is internally provided with a Hall sensor (11);
the Hall measuring head motion system (2) comprises a three-dimensional rectangular coordinate mechanism (22), a driving mechanism and a motion controller (20), wherein the three-dimensional rectangular coordinate mechanism (22) forms a theoretical coordinate system Frame1 consisting of an X axis, a Y axis and a Z axis, and the three-dimensional rectangular coordinate mechanism (22) is butted with the Hall measuring head (1); the driving mechanism controls the three-dimensional rectangular coordinate mechanism (22) to realize the three-dimensional space motion of the Hall measuring head (1); the motion controller (20) is connected with the driving mechanism through a signal line; the motion controller (20) is connected with the Hall sensor (11) through a signal wire;
the Hall measuring head tracking system (3) comprises a space analyzer (30), a laser tracker (31) and a reflection target ball (32), wherein the reflection target ball (32) is arranged in the Hall measuring head (1), and the geometric center of the Hall sensor (11) and the center of the reflection target ball (32) are positioned on the same plumb line; the laser tracker (31) and the reflection target ball (32) are in a range capable of real-time tracking; the space analyzer (30) is electrically connected with the laser tracker (31);
the Hall measuring head (1) is arranged in an air gap of the dipolar electromagnet (5) to be measured;
the motion controller (20) provides a current signal for the Hall sensor (11), and the motion controller (20) controls the speed of the Hall sensor (11) and the position of the Hall sensor (11) in an air gap of the dipolar electromagnet (5) to be detected through the driving mechanism;
the Hall measuring head tracking system (3) establishes an actual coordinate system Frame2 capable of marking the Hall measuring head (1) by tracking the reflection target ball (32).
2. The apparatus for checking the magnetic field parameter of a dipolar electromagnet according to claim 1, characterized in that it further comprises a user computer (4), and the motion controller (20) and the space analyzer (30) are connected to the user computer (4).
3. Device for checking the values of the magnetic field parameters of a dipolar electromagnet according to claim 1, characterized in that the Hall probe movement system (2) further comprises a base (21),
the three-dimensional rectangular coordinate mechanism (22) comprises a horizontal coordinate rod (221), a vertical coordinate rod (222) and a probe rod (223),
the horizontal coordinate rod (221) is horizontally arranged on the base (21), and the horizontal coordinate rod (221) can slide left and right on the base (21) along a straight line; the longitudinal coordinate rod (222) is vertically arranged on the transverse coordinate rod (221), and the longitudinal coordinate rod (222) can slide back and forth on the transverse coordinate rod (221) along a straight line; the probe rod (223) is horizontally arranged on the longitudinal coordinate rod (222), and the probe rod (223) can slide up and down on the longitudinal coordinate rod (222) along a straight line;
the horizontal coordinate rod (221), the vertical coordinate rod (222) and the probe rod (223) are perpendicular to each other, and a theoretical coordinate system Frame1 composed of an X axis, a Y axis and a Z axis is formed together.
4. A device for checking the magnetic field parameters of a dipolar electromagnet according to claim 3,
the driving mechanism comprises an X-axis motor, a Y-axis motor and a Z-axis motor,
an output shaft of the X-axis motor is in transmission connection with the abscissa rod (221) and is used for controlling the abscissa rod (221) to slide left and right on the base (21) along a straight line;
an output shaft of the Y-axis motor is in transmission connection with the longitudinal coordinate rod (222) and is used for the longitudinal coordinate rod (222) to slide back and forth on the transverse coordinate rod (221) along a straight line;
the output shaft of the Z-axis motor is in transmission connection with the probe rod (223) and is used for enabling the probe rod (223) to slide up and down on the longitudinal coordinate rod (222) along a straight line;
the X-axis motor, the Y-axis motor and the Z-axis motor are respectively connected with the motion controller (20) through signal lines, and when the motion controller (20) respectively controls the X-axis motor, the Y-axis motor and the Z-axis motor to be started, the horizontal coordinate rod (221), the longitudinal coordinate rod (222) and the probe rod (223) move on output shafts of the motors respectively, so that the Hall measuring head (1) can move in a three-dimensional space.
5. Device for checking the values of the magnetic field parameters of a dipolar electromagnet according to claim 4, characterized in that the Hall probe (1) comprises a probe base body (10),
the measuring head base body (10) comprises a sleeve part (12) and a target ball rod part (13), the sleeve part (12) and the end part of the target ball rod part (13) are butted and integrally formed,
the probe rod (223) is butted with the sleeve part (12) of the measuring head base body (10);
the end part of the outer end of the target ball rod part (13) is provided with a Hall sensor groove (110), the Hall sensor (11) is arranged in the Hall sensor groove (110),
the motion controller (20) is connected with the Hall sensor (11) through a signal wire.
6. Device for checking the values calculated by the magnetic field parameters of a dipolar electromagnet according to claim 5, characterized in that the Hall probe tracking system (3) further comprises a reflecting target ball fixture (33),
reflection target ball fixing device (33) include target ball fixed band (331) and horizontal clamp plate (332), horizontal clamp plate (332) level set up in the upper surface of target ball pole portion (13) and with hall sensor (11) contact, reflection target ball (32) set up in the outer end of horizontal clamp plate (332), reflection target ball (32) are located directly over hall sensor (11) just the geometric centre of hall sensor (11) with the centre of sphere of reflection target ball (32) are located same plumb line.
7. A device for checking the magnetic field parameters of a dipolar electromagnet according to claim 6,
the horizontal pressing plate (332) is horizontally arranged on the upper surface of the target ball rod part (13), and the lower surface of the outer end of the horizontal pressing plate (332) is in contact with the Hall sensor (11);
the upper surface of the outer end of the horizontal pressing plate (332) protrudes upwards to form a protruding part (3320), the upper surface of the protruding part (3320) is a concave arc surface, and the protruding part (3320) is located right above the Hall sensor (11);
the reflection target ball (32) is arranged in a concave cambered surface of a convex part (3320) of the horizontal pressing plate (332).
8. The apparatus for checking the magnetic field parameters of a dipolar electromagnet according to claim 7,
the Hall measuring head tracking system (3) further comprises a target ball fixing band (331), the target ball fixing band (331) is bound on the reflection target ball (32), and two ends of the target ball fixing band (331) are fixed on the horizontal pressing plate (332) or the target ball rod part (13).
9. A method for checking a calculated value of a magnetic field parameter of a two-pole electromagnet according to any one of claims 1 to 8, wherein before the method is carried out, a height difference H between the center of the target ball (32) and the geometric center of the hall sensor (11) is calibrated, the method comprising the steps of:
step S1: calculating the theoretical track of the Hall sensor (11) in the air gap of the dipolar electromagnet (5) to be measured according to the dipolar electromagnet (5) to be measured and the relative position relationship between the dipolar electromagnet to be measured and the Hall sensor (11);
step S2: designing track points A1, A2, … and An of the Hall measuring head (1) and current values of corresponding specified points according to the calculated theoretical track of the Hall measuring head (1) in the air gap of the dipolar electromagnet (5) to be measured;
step S3: starting the Hall measuring head motion system (2), enabling the Hall measuring head (1) to reach a track point A1, and transmitting a current value to the Hall sensor (11) through the motion controller (20);
step S4: starting a Hall measuring head tracking system (3), recording coordinates F (x ', y', z ') of a reflecting target ball (32), and converting actual coordinates E (x', y ', z' + H) of the Hall sensor (11) in a track point A1 by a space analyzer (30) according to the spatial relation between the reflecting target ball (32) and the Hall sensor (11);
step S5: repeating the steps S3 to S4 until all the actual coordinates of the Hall sensor (11) at the track points A2, … and An are collected;
step S6: designing theoretical tracks of Hall sensors (11) in An air gap of a dipolar electromagnet (5) to be measured into track points A1, A2, … and An of a Hall measuring head (1), connecting actual coordinates of the Hall sensors (11) in the track points A1, A2, … and An into actual tracks, analyzing and comparing data and graphs of the theoretical tracks and the actual tracks, judging errors between the theoretical tracks and the actual tracks of the Hall sensors (11) and correcting the calculated values of the magnetic field parameters of the dipolar electromagnet according to An error allowable range.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114062980A (en) * | 2021-11-03 | 2022-02-18 | 中国科学院近代物理研究所 | Electromagnet magnetic field measurement positioning device, positioning auxiliary system and positioning method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202231941U (en) * | 2011-10-01 | 2012-05-23 | 中国科学院近代物理研究所 | Non-circular section thin wall vacuum pipeline and non-circular section thin wall vacuum chamber |
| EP2551693A1 (en) * | 2011-07-27 | 2013-01-30 | Jeol Resonance Inc. | Nuclear magnetic resonance spectrometer and method of magnetic field correction |
| US20150142356A1 (en) * | 2013-11-12 | 2015-05-21 | Olympus Scientifics Solutions Americas Inc. | Hall effect measurement instrument with temperature compensation |
| US20150212225A1 (en) * | 2014-01-27 | 2015-07-30 | Arcady Reiderman | Ultra-Slim Nuclear Magnetic Resonance Tool for Oil Well Logging |
| CN106597325A (en) * | 2016-11-08 | 2017-04-26 | 中国科学院近代物理研究所 | Dynamic measurement device and method for superconducting magnet under low temperature |
| CN106772146A (en) * | 2017-03-24 | 2017-05-31 | 中国工程物理研究院流体物理研究所 | A kind of centering hall probe fixed mechanism |
| CN107101569A (en) * | 2017-05-19 | 2017-08-29 | 清华大学 | The vibrating-wire magnetic center measurement apparatus and method of a kind of fixed magnet |
| CN109324300A (en) * | 2018-11-17 | 2019-02-12 | 中国科学院理化技术研究所 | Magnetic field measuring device, magnetic field testing system and magnetic field testing method for magnet space |
| CN110007258A (en) * | 2019-05-15 | 2019-07-12 | 上海东软医疗科技有限公司 | A kind of method and device of the receiving coil position of determining magnetic resonance system |
| CN110044260A (en) * | 2019-04-13 | 2019-07-23 | 西南交通大学 | A kind of tracks of permanent magnetism irregularity detection device |
| CN110927633A (en) * | 2019-12-13 | 2020-03-27 | 西北核技术研究院 | Quadrupole magnet magnetic field gradient integral measurement method |
| CN111679231A (en) * | 2020-06-18 | 2020-09-18 | 合肥中科离子医学技术装备有限公司 | Measuring system and measuring method for sector diode ferromagnetic field of cyclotron |
-
2021
- 2021-01-26 CN CN202110103449.0A patent/CN112782618B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2551693A1 (en) * | 2011-07-27 | 2013-01-30 | Jeol Resonance Inc. | Nuclear magnetic resonance spectrometer and method of magnetic field correction |
| CN202231941U (en) * | 2011-10-01 | 2012-05-23 | 中国科学院近代物理研究所 | Non-circular section thin wall vacuum pipeline and non-circular section thin wall vacuum chamber |
| US20150142356A1 (en) * | 2013-11-12 | 2015-05-21 | Olympus Scientifics Solutions Americas Inc. | Hall effect measurement instrument with temperature compensation |
| US20150212225A1 (en) * | 2014-01-27 | 2015-07-30 | Arcady Reiderman | Ultra-Slim Nuclear Magnetic Resonance Tool for Oil Well Logging |
| CN106597325A (en) * | 2016-11-08 | 2017-04-26 | 中国科学院近代物理研究所 | Dynamic measurement device and method for superconducting magnet under low temperature |
| CN106772146A (en) * | 2017-03-24 | 2017-05-31 | 中国工程物理研究院流体物理研究所 | A kind of centering hall probe fixed mechanism |
| CN107101569A (en) * | 2017-05-19 | 2017-08-29 | 清华大学 | The vibrating-wire magnetic center measurement apparatus and method of a kind of fixed magnet |
| CN109324300A (en) * | 2018-11-17 | 2019-02-12 | 中国科学院理化技术研究所 | Magnetic field measuring device, magnetic field testing system and magnetic field testing method for magnet space |
| CN110044260A (en) * | 2019-04-13 | 2019-07-23 | 西南交通大学 | A kind of tracks of permanent magnetism irregularity detection device |
| CN110007258A (en) * | 2019-05-15 | 2019-07-12 | 上海东软医疗科技有限公司 | A kind of method and device of the receiving coil position of determining magnetic resonance system |
| CN110927633A (en) * | 2019-12-13 | 2020-03-27 | 西北核技术研究院 | Quadrupole magnet magnetic field gradient integral measurement method |
| CN111679231A (en) * | 2020-06-18 | 2020-09-18 | 合肥中科离子医学技术装备有限公司 | Measuring system and measuring method for sector diode ferromagnetic field of cyclotron |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114062980A (en) * | 2021-11-03 | 2022-02-18 | 中国科学院近代物理研究所 | Electromagnet magnetic field measurement positioning device, positioning auxiliary system and positioning method |
| CN114062980B (en) * | 2021-11-03 | 2022-04-26 | 中国科学院近代物理研究所 | Electromagnet magnetic field measurement positioning device, positioning auxiliary system and positioning method |
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|---|---|
| CN112782618B (en) | 2021-11-23 |
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