CN110579727A - A magnetic field precision measurement device for in special-shaped cavity - Google Patents
A magnetic field precision measurement device for in special-shaped cavity Download PDFInfo
- Publication number
- CN110579727A CN110579727A CN201911006311.8A CN201911006311A CN110579727A CN 110579727 A CN110579727 A CN 110579727A CN 201911006311 A CN201911006311 A CN 201911006311A CN 110579727 A CN110579727 A CN 110579727A
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- special
- cavity
- trolley
- pull rope
- magnetic field
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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
Abstract
A magnetic field precision measuring device used in a special-shaped cavity comprises a motor connecting base connected with a flange on the left side of the cavity, wherein a stepping motor is arranged on the motor connecting base; a guide wheel at the power output end of the stepping motor is connected with the trolley through a pull rope; the trolley is arranged on the special-shaped guide rail; the special-shaped guide rail is arranged in the channel of the magnetic cavity to be measured; the trolley is provided with a mounting hole of the measuring probe, and the measuring mounting hole is internally provided with a Hall probe; a sensor connecting base is arranged at the right end of the channel of the measured magnetic cavity and is installed on a flange at the right side of the measured magnetic cavity, and a stay wire encoder is installed on the sensor connecting base; one end of the pull rope is wound on the guide wheel, the other end of the pull rope is contracted inside the pull rope encoder, and the middle of the pull rope is fixed on the trolley; the accurate measurement of the special-shaped space magnetic field is realized; the arc length distance that the dolly removed is fed back to measurement system by the encoder of acting as go-between, and encoder control measurement accuracy 0.02mm to realize deflecting magnetic field type magnet's magnetic field accurate measurement, have that the structure is ingenious, practical, reliable, convenient operation's characteristics.
Description
Technical Field
The invention belongs to the technical field of magnet measurement, and particularly relates to a magnetic field precision measurement device used in a special-shaped cavity.
Background
In recent years, strong magnetic fields are widely applied to the technical fields of material science, physics, energy and biomedical science, in particular to a national large scientific device for basic characteristic research of substances and life, and the strong magnetic field environment is a prerequisite for scientific research. The deflecting magnetic field type magnet plays an important role in deflecting particles as a main component in the accelerator.
Because there is not relevant special accurate magnetism measuring equipment in the field of the present deflection magnetic field type magnet, for example, a precise magnetism measuring device for a large-diameter Dipole coil in the literature (CN 108427082A), the purpose of magnetism measurement is realized by adopting the traditional mechanical design concept, but the mechanism structure is relatively unreasonable, the precision of the measurement result is poor, the operation is inconvenient, the automation degree is low, and the processing and manufacturing cost is very high, so that the mechanism is not suitable for industrial production and use.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a more convenient and reliable magnetic field precision measuring device used in a special-shaped cavity, a sliding track is arranged in a narrow space of a magnetic field channel of a special-shaped cavity magnet, and transmission control is realized at the outer side of the cavity through a motor and a stay wire encoder, so that the whole process can be accurately fed and continuously measured, the technical problem of precision measurement of the special-shaped cavity magnet is solved, and the precision measurement of the special-shaped cavity magnet, namely the precision measurement of the magnetic field on the axis in the magnetic measurement process of a deflection magnetic field magnet, is realized; has simple structure, easy operation and simple device.
In order to achieve the purpose, the invention adopts the technical scheme that: a magnetic field precision measuring device used in a special-shaped cavity comprises a motor connecting base connected with a flange, wherein a stepping motor is arranged on the motor connecting base; a guide wheel at the power output end of the stepping motor is connected with the trolley through a pull rope; the trolley is arranged on the special-shaped guide rail; the special-shaped guide rail is arranged in the channel of the magnetic cavity to be measured; a measurement mounting hole is formed in the trolley, and a Hall probe is arranged in the measurement mounting hole; a sensor connecting base is arranged at the right end of the channel of the measured magnetic cavity, the sensor connecting base is arranged on a flange at the right side of the cavity, and a stay wire encoder is arranged on the sensor connecting base; one end of the pull rope is wound on the guide wheel, the other end of the pull rope is contracted inside the pull rope encoder, and the middle of the pull rope is fixed on the trolley.
The special-shaped track is fixed inside the channel of the magnetic cavity to be measured.
Universal balls are respectively arranged on the trolley in four directions and are used for sliding on the inner wall of the cavity of the measured magnetic cavity channel.
The stay wire encoder controls the measurement precision to be 0.02 mm.
The special-shaped guide rail is provided with a T-shaped groove, and the trolley is connected with the special-shaped guide rail in a sliding mode through the T-shaped groove.
The trolley can circumferentially slide along the T-shaped groove on the inner side of the special-shaped guide rail.
The special-shaped guide rail is fixedly arranged at the bottom of the measured magnetic cavity channel 11 through bolts.
The measured magnetic cavity passage is a magnetic field using space of the superconducting magnet structure.
The invention has the beneficial effects that:
1) The precise magnetism measurement of the special-shaped cavity type magnet can be realized.
2) The trolley pulls the pull rope to slide along the T-shaped groove on the special-shaped guide rail through the stepping motor, and the pull rope encoder is connected with the trolley through the other end of the pull rope, so that the moving distance information of the trolley can be timely and accurately fed back.
3) Universal balls are respectively arranged on the trolley in four directions and are used for sliding the trolley and the inner wall of the cavity.
The invention solves the technical problem of precise measurement in the process of measuring the magnetic field in the special-shaped cavity for the large scientific device; has the characteristics of ingenious, practical and reliable structure and convenient operation.
Drawings
FIG. 1(a) is a schematic diagram of a special-shaped cavity structure to be measured according to the present invention.
FIG. 1(b) is a view taken along the line A of FIG. 1 according to the present invention.
FIG. 2 is a front view of the working principle of the magnetic field precision measuring device of the present invention when connected with the channel of the measured magnetic cavity.
Fig. 3 is a left side view of fig. 2 of the present invention.
In the figure: 1. the device comprises a motor connecting base, 2 steps of a motor, 3 guide wheels, 4 pull ropes, 5 special-shaped guide rails, 6 trolleys, 7 sensors connecting base, 8 pull rope encoders, 9 Hall probes, 10 universal balls, 11 measured magnetic cavity channels and 12 flanges.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
the beam current channel space of the deflection magnetic field type magnet is usually a special-shaped cavity, and as shown in fig. 1, the difficulty in accurately measuring the magnetic field distribution at the center position of the cavity is high. The structural principle of the device of the invention is shown in figure 2.
The invention relates to a precise magnetic measurement device of a deflection magnetic field type magnet, which is used for measuring the beam cavity structure of the deflection magnetic field type magnet as shown in figures 1(a) to (b), wherein the cavity space is a narrow rectangular space and extends along a special shape, and the magnetic measurement device is shown in figures 2 and 3; a guide wheel 3 at the power output end of the stepping motor 2 is connected with a trolley 6 through a pull rope 4; the trolley 6 is arranged on the special-shaped guide rail 5; the special-shaped guide rail 5 is arranged in the magnetic cavity channel 11 to be measured; a measuring mounting hole is arranged on the trolley 6, and a Hall probe 9 is arranged in the measuring mounting hole; a sensor connecting base 7 is arranged at the right end of the measured magnetic cavity channel 11, the sensor connecting base is installed on a flange at the right side of the cavity, and a stay wire encoder 8 is installed on the sensor connecting base 7; one end of the pull rope 4 is wound on the guide wheel 3, the other end of the pull rope is contracted inside the pull rope encoder 8, and the middle of the pull rope is fixed on the trolley 6.
The special-shaped track 5 is fixed in the measured magnetic cavity channel 11.
Universal balls 10 are respectively arranged on the trolley 6 in four directions and are used for sliding on the inner wall of the cavity of the measured magnetic cavity channel 11.
The stay wire encoder controls the measurement precision to be 0.02 mm.
The special-shaped guide rail 5 is provided with a T-shaped groove, and the trolley 6 is connected with the special-shaped guide rail 5 in a sliding mode through the T-shaped groove.
The trolley 6 can circumferentially slide along the T-shaped groove on the inner side of the special-shaped guide rail 5.
The special-shaped guide rail is fixedly arranged at the bottom of the measured magnetic cavity channel 11 through a bolt;
The measured magnetic cavity passage is a magnetic field using space of the superconducting magnet structure.
Firstly, fixing a special-shaped track 5 on a channel 11 of a magnetic cavity to be measured, and connecting and positioning the special-shaped guide rail 5 with the left side of the magnetic cavity to be measured 11 through a motor connecting base 1; the trolley 6 can circumferentially slide along a T-shaped groove on the inner side of the special-shaped guide rail 5, the stepping motor 2 is arranged on the upper end surface of the motor connecting base 1, the guide wheel 3 is arranged at the shaft end of the stepping motor 2, and the trolley is driven by the traction pull rope 4 to provide sliding power for the trolley 6; the Hall probe 9 is embedded in a measuring mounting hole of the trolley 6 for measuring the central magnetic field, and universal balls 10 are respectively mounted in four directions on the trolley 6 and used for sliding the trolley and the inner wall of the cavity. The sensor is connected the other end of base 7 and measured magnetic cavity passageway 11 and is fixed, and the encoder 8 of acting as go-between is installed and is connected base 7 at the sensor to be connected with the other end of stay cord 4, the arc length distance that the dolly removed is fed back to measurement system by the encoder 8 of acting as go-between, and encoder control measurement accuracy 0.02mm, thereby realize deflecting magnetic field type magnet's magnetic field accurate measurement. The trolley 6 slides along the T-shaped groove on the special-shaped guide rail 5 through the pull rope 4 pulled by the stepping motor 2, and the pull rope encoder 8 is connected with the trolley through the other end of the pull rope 4 to feed back the moving distance information of the trolley.
The measured magnetic cavity passage 11 is a magnetic field use space of the superconducting magnet structure.
The special-shaped guide rail 5 is fixedly arranged at the bottom of the measured magnetic cavity channel 11 through a bolt.
The trolley 6 can slide along the T-shaped groove on the inner side of the special-shaped guide rail 5.
The motor connecting base 1 is installed on a connecting flange on the left side of the measured magnetic cavity channel 11 through bolt connection.
The sensor connecting base 7 is installed on a connecting flange on the right side of the measured magnetic cavity channel 11 through bolt connection.
The stepping motor 2 is installed on the motor connecting base 1 through bolt connection.
And the sensor connecting base 7 is arranged on a flange on the right side of the cavity.
And the stay wire encoder 8 is installed on the sensor connecting base 7 through bolt connection.
The Hall probe 9 is embedded on the trolley 6.
The universal ball 10 is mounted on the trolley 6 through a bolt.
One end of the traction pull rope 4 is wound on the guide wheel 3, the other end of the traction pull rope is contracted inside the pull rope encoder 8, and the middle of the traction pull rope is fixed on the trolley 6.
Claims (4)
1. A magnetic field precision measurement device used in a special-shaped cavity is characterized by comprising a motor connecting base (1) connected with a flange (12), wherein a stepping motor (2) is arranged on the motor connecting base (1); a guide wheel (3) at the power output end of the stepping motor (2) is connected with a trolley (6) through a pull rope (4); the trolley (6) is arranged on the special-shaped guide rail (5); the special-shaped guide rail (5) is arranged in the channel (11) of the magnetic cavity to be measured; a measuring mounting hole is arranged on the trolley (6), and a Hall probe (9) is arranged in the measuring mounting hole; a sensor connecting base (7) is arranged at the right end of the measured magnetic cavity channel (11), the sensor connecting base is arranged on a flange at the right side of the cavity, and a stay wire encoder (8) is arranged on the sensor connecting base (7); one end of the pull rope (4) is wound on the guide wheel (3), the other end of the pull rope is contracted inside the pull rope encoder (8), and the middle of the pull rope is fixed on the trolley (6).
2. The precision measurement device for the magnetic field in the special-shaped cavity is characterized in that the special-shaped track (5) is matched with the measured space in shape and is fixed inside the channel (11) of the measured magnetic cavity.
3. The precision measuring device for the magnetic field in the special-shaped cavity according to claim 1, characterized in that universal balls (10) are respectively mounted on the trolley (6) in four directions and used for sliding constraint of the trolley on the inner wall of the cavity of the measured magnetic cavity channel 11.
4. The precision measuring device for the magnetic field in the special-shaped cavity is characterized in that the measuring device is controlled by a stay wire encoder, and the control precision can reach the precision measurement control of 0.02mm step length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911006311.8A CN110579727A (en) | 2019-10-22 | 2019-10-22 | A magnetic field precision measurement device for in special-shaped cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911006311.8A CN110579727A (en) | 2019-10-22 | 2019-10-22 | A magnetic field precision measurement device for in special-shaped cavity |
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| Publication Number | Publication Date |
|---|---|
| CN110579727A true CN110579727A (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911006311.8A Withdrawn CN110579727A (en) | 2019-10-22 | 2019-10-22 | A magnetic field precision measurement device for in special-shaped cavity |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201555938U (en) * | 2009-12-11 | 2010-08-18 | 中国原子能科学研究院 | Magnetic field measuring device for cyclotron |
| CN103846649A (en) * | 2014-03-20 | 2014-06-11 | 清华大学 | Two-stage parallel robot device applied to precision assembly |
| CN208060688U (en) * | 2018-04-16 | 2018-11-06 | 徐靖宇 | It is a kind of can pin-point reading Helmholtz coil magnetic field measuring device |
| CN208270744U (en) * | 2018-04-04 | 2018-12-21 | 西安聚能超导磁体科技有限公司 | One kind surveying magnetic field device for major diameter Dipole superconducting magnet |
| DE102017122028A1 (en) * | 2017-09-22 | 2019-03-28 | Helmholtz-Zentrum Berlin Für Materialien Und Energie Gmbh | Device for determining small magnetic fields with at least one SQUID sensor |
-
2019
- 2019-10-22 CN CN201911006311.8A patent/CN110579727A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201555938U (en) * | 2009-12-11 | 2010-08-18 | 中国原子能科学研究院 | Magnetic field measuring device for cyclotron |
| CN103846649A (en) * | 2014-03-20 | 2014-06-11 | 清华大学 | Two-stage parallel robot device applied to precision assembly |
| DE102017122028A1 (en) * | 2017-09-22 | 2019-03-28 | Helmholtz-Zentrum Berlin Für Materialien Und Energie Gmbh | Device for determining small magnetic fields with at least one SQUID sensor |
| CN208270744U (en) * | 2018-04-04 | 2018-12-21 | 西安聚能超导磁体科技有限公司 | One kind surveying magnetic field device for major diameter Dipole superconducting magnet |
| CN208060688U (en) * | 2018-04-16 | 2018-11-06 | 徐靖宇 | It is a kind of can pin-point reading Helmholtz coil magnetic field measuring device |
Non-Patent Citations (1)
| Title |
|---|
| 朱煜 等: "基于单拉线编码器测量系统的几何标定及精度分析", 《机械与电子》 * |
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Application publication date: 20191217 |
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