CN111060241A - Torque detection system and method based on magnetic Barkhausen effect - Google Patents
Torque detection system and method based on magnetic Barkhausen effect Download PDFInfo
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- CN111060241A CN111060241A CN201911216544.0A CN201911216544A CN111060241A CN 111060241 A CN111060241 A CN 111060241A CN 201911216544 A CN201911216544 A CN 201911216544A CN 111060241 A CN111060241 A CN 111060241A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
- G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
- G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model provides a torque detection system and detection method based on magnetism barkhausen effect, including the filtering amplification circuit, signal acquisition card and the host computer that are used for handling the signal that receive of series connection in proper order, still including being used for producing the signal generation device that is used for producing the magnetism barkhausen noise signal of reflection moment of torsion size for the excitation circuit that the excitation generation device produced magnetism barkhausen noise signal, and set up and be in be used for on the signal generation device gathering the detection sensor of magnetism barkhausen noise signal, the signal output part of detection sensor connects filtering amplification circuit's signal input part. The sleeve coil type excitation coil is adopted to excite the measured shaft, the magnetic Barkhausen effect is applied to torque measurement, the non-contact measurement and nondestructive detection are achieved, the measurement and real-time detection can be conducted in a severe environment, the real-time situation of the bolete shaft is obtained, the loss caused by the breakage of the bolete shaft is avoided, and the practical significance is very high.
Description
Technical Field
The invention relates to a torque detection system. In particular to a torque detection system and a torque detection method based on a magnetic Barkhausen effect.
Background
With the development of the technology, the torque measurement technology is a subject of comprehensively applying knowledge in various aspects such as machinery, electronics, physics, computers and the like, has wide application fields, can permeate into various fields such as industry, agriculture, transportation, aerospace, national defense, energy, chemical industry and the like, and plays an important role in various fields.
Torque is one of the basic load forms of a propeller shaft. The torque measurement is related to the service performance, service life, safety performance and the like of the transmission shaft, so that whether the torque of the transmission shaft can be accurately monitored in real time has very important significance for whether the power of an equipment system can be inferred, the motion state of the equipment system can be monitored, whether possible faults of the transmission shaft can be detected in time and the like. Meanwhile, the torque is an important parameter which needs to be frequently detected in the industrial production process, the torque measurement technology plays a key role in the aspects of research and development design, safety monitoring and control, quality detection, test analysis and the like of various mechanical products, information sources are provided for monitoring the running states of various power mechanical systems, forecasting faults and the like, theoretical bases are provided for analyzing the stress conditions of mechanical parts and designing rotary mechanical systems, and the torque measurement technology is one of research hotspots concerned by scholars at home and abroad.
Disclosure of Invention
The invention aims to provide a torque detection system and a torque detection method based on the magnetic Barkhausen effect, which can carry out measurement and real-time detection in a severe environment.
The technical scheme adopted by the invention is as follows: the utility model provides a torque detection system based on magnetism barkhausen effect, is used for carrying out the filtering amplification circuit, signal acquisition card and the host computer that handle received signal including series connection in proper order, still including being used for producing the signal generation device that the magnetism barkhausen noise signal of reflection moment of torsion size for the excitation circuit that the excitation generation device produced magnetism barkhausen noise signal, and set up and be in be used for on the signal generation device gathering magnetism barkhausen noise signal's detection sensor, the signal output part of detection sensor connects filtering amplification circuit's signal input part.
A detection method of a torque detection system based on a magnetic Barkhausen effect comprises the following steps:
1) a sinusoidal signal is given to the first excitation coil and the second excitation coil through an excitation circuit;
2) the first excitation coil and the second excitation coil excite the elastic shaft, external torque is applied to two ends of the elastic shaft, and a magnetic Barkhausen noise signal released by the elastic shaft changes;
3) collecting a magnetic Barkhausen noise signal generated on the elastic shaft through a detection sensor, and sending the signal to a filtering and amplifying circuit for filtering and amplifying;
4) collecting the filtered and amplified magnetic Barkhausen noise signal by a signal acquisition card, and sending the signal to an upper computer;
5) repeating the steps 1) to 4) until the set times are reached, and obtaining a magnetic Barkhausen noise signal corresponding to the torque applied for multiple times by the upper computer;
6) the relationship between the torque and the corresponding magnetic Barkhausen noise signal is established, so that the corresponding torque can be obtained through the magnetic Barkhausen noise signal according to the relationship between the torque and the corresponding magnetic Barkhausen noise signal.
According to the torque detection system and method based on the magnetic Barkhausen effect, the excitation coil in the sleeve coil type is adopted to excite the detected shaft, the magnetic Barkhausen effect is applied to torque measurement, the defect of U-shaped magnetic yoke contact type measurement is overcome, the system belongs to non-contact type measurement and nondestructive detection, the system can be applied to an industrial field, the requirement on the measurement environment is low, the measurement and real-time detection can be carried out under a severe environment, the real-time condition of the boltholes shaft is obtained, the loss caused by breakage of the boltholes shaft is avoided, and the system and method have very high practical significance.
Drawings
FIG. 1 is a flow chart of a detection method of a torque detection system based on the magnetic Barkhausen effect according to the invention;
FIG. 2 is a schematic diagram of a torque detection system based on the magnetic Barkhausen effect according to the present invention;
fig. 3 is a block diagram showing the structure of the exciting circuit of the present invention.
In the drawings
1: the elastic shaft 2: first sleeve skeleton
3: second sleeve skeleton 4: first excitation coil
5: second excitation coil 6: detection sensor
7: permalloy outer cover 8: copper housing
9: insulating tape 10: excitation circuit
10.1: signal generation circuit 10.2: voltage amplifying circuit
10.3: power amplifier circuit 11: filter amplifying circuit
12: a signal acquisition card 13: upper computer
Detailed Description
The torque detection system and the torque detection method based on the magnetic barkhausen effect according to the present invention will be described in detail with reference to the following embodiments and the accompanying drawings.
As shown in fig. 2, the torque detection system based on the magnetic barkhausen effect of the present invention includes a filter amplifying circuit 11, a signal acquisition card 12 and an upper computer 13 which are connected in series in sequence and used for processing received signals, and further includes a signal generating device for generating a magnetic barkhausen noise signal reflecting the magnitude of torque, an excitation circuit 10 for exciting the generating device to generate the magnetic barkhausen noise signal, and a detection sensor 6 arranged on the signal generating device and used for acquiring the magnetic barkhausen noise signal, wherein a signal output end of the detection sensor 6 is connected to a signal input end of the filter amplifying circuit 11.
As shown in fig. 2, the signal generating device includes an elastic shaft 1, two ends of the elastic shaft 1 are connected to an external torque loading device, a first excitation coil 4 and a second excitation coil 5 are respectively wound on the elastic shaft 1 at a set distance, an excitation circuit 10 is disposed at one side of the elastic shaft 1, a signal output end of the excitation circuit 10 is respectively connected to one end of the first excitation coil 4 and one end of the second excitation coil 5, and the other end of the first excitation coil 4 and the other end of the second excitation coil 5 are connected to a ground end of the excitation circuit 10, so that the first excitation coil 4 and the second excitation coil 5 form a parallel structure, and the parallel structure reduces impedance of the first excitation coil 4 and the second excitation coil 5, increases current, increases magnetic field, and meets a required magnetic field requirement. The detection sensor 6 is disposed on the elastic shaft 1 between the first excitation coil 4 and the second excitation coil 5.
Elastic shaft 1 on separate set distance respectively the cover have first sleeve section of thick bamboo skeleton 2 and second sleeve section of thick bamboo skeleton 3, first excitation coil 4 winding is in on the first sleeve section of thick bamboo skeleton 2, second excitation coil 5 winding is in on the second sleeve section of thick bamboo skeleton 3. The invention adopts an outer sleeve coil type excitation coil to excite a detected elastic shaft 1, applies the magnetic Barkhausen effect to torque measurement, effectively reduces coil impedance by connecting a first excitation coil 4 and a second excitation coil 5 in parallel, increases the intensity of the excitation magnetic field, ensures better excitation effect, and avoids the defect of U-shaped magnetic yoke contact type measurement.
When the first excitation coil 4 and the second excitation coil 5 are wound, the first excitation coil 4 and the second excitation coil 5 are wound clockwise or counterclockwise, and the generated magnetic poles are in an N-S-N-S or S-N-S-N sequence, so that a stronger magnetic field is formed at the interval part between the first excitation coil 4 and the second excitation coil 5.
As shown in fig. 3, the excitation circuit 10 includes a signal generating circuit 10.1 for generating a sinusoidal signal, a voltage amplifying circuit 10.2 for voltage biasing and amplifying the generated sinusoidal signal, and a power amplifying circuit 10.3 for power amplifying the signal output by the voltage amplifying circuit 10.2, which are connected in series in sequence, wherein an output end of the power amplifying circuit 10.3 is connected to one end of the first excitation coil 4 and the second excitation coil 5 in the signal generating device, respectively, and a ground end of the power circuit 10.4 for supplying power to the signal generating circuit 10.1, the voltage amplifying circuit 10.2, and the power amplifying circuit 10.3 is connected to the other end of the first excitation coil 4 and the second excitation coil 5 in the signal generating device.
The detection sensor 6 comprises cylindrical manganese-zinc ferrite with the diameter of 6 mm and the height of 20 mm, wherein the cylindrical manganese-zinc ferrite is provided with a coil with the diameter of 0.15 and 800 circles of enameled wire winding, as shown in fig. 2, the outer side of the coil is wrapped with an insulating adhesive tape 9, and during detection, the lower end of the cylindrical manganese-zinc ferrite is positioned on an elastic shaft 1 in the signal generation device.
As shown in fig. 2, the detecting sensor 6 is sleeved with a 2 mm thick 1J85 permalloy cover 7 with an opening at the lower end, the permalloy cover 7 is sleeved with a 3 mm thick copper cover 8 with an opening at the lower end, and two ends of the coil of the detecting sensor 6 sequentially penetrate through holes formed at the upper end of the permalloy cover 7 and the upper end of the copper cover 8 to be connected with the signal input end of the filter amplifying circuit 11.
As shown in fig. 1 and fig. 2, the detection method of the torque detection system based on the magnetic barkhausen effect of the present invention includes the following steps:
1) a sinusoidal signal is given to the first excitation coil 4 and the second excitation coil 5 through the excitation circuit 10;
a signal generating circuit (AD9833)10.1 in the exciting circuit 10 generates a sinusoidal signal, which is subjected to voltage bias and amplification by a voltage amplifying circuit (OP27)10.2, and finally subjected to power amplification by a power amplifying circuit (LT1210)10.3 and outputs the sinusoidal exciting signal to the first exciting coil 4 and the second exciting coil 5.
2) The first excitation coil 4 and the second excitation coil 5 excite the elastic shaft 1, an external torque T is applied to two ends of the elastic shaft 1, a magnetic barkhausen noise signal released by the elastic shaft 1 changes, and the torque change of the elastic shaft is obtained through the change of the characteristic value of the magnetic barkhausen noise signal;
3) acquiring a magnetic Barkhausen noise signal generated on the elastic shaft 1 through a detection sensor 6, and sending the signal to a filtering and amplifying circuit 11 for filtering and amplifying;
4) collecting the filtered and amplified magnetic Barkhausen noise signal by a signal collecting card (12), and sending the signal to an upper computer (13);
5) repeating the steps 1) to 4) until the set times are reached, and obtaining a magnetic Barkhausen noise signal corresponding to the torque applied for multiple times by the upper computer (13);
6) the relationship between the torque and the corresponding magnetic Barkhausen noise signal is established, so that the corresponding torque can be obtained through the magnetic Barkhausen noise signal according to the relationship between the torque and the corresponding magnetic Barkhausen noise signal.
Claims (9)
1. The utility model provides a torque detection system based on magnetism barkhausen effect, is used for carrying out the filtering amplification circuit (11) that handle to the signal that receives, signal acquisition card (12) and host computer (13) including series connection in proper order, its characterized in that, still including being used for producing the signal generation device that is used for producing the magnetism barkhausen noise signal of reflection moment of torsion size, be used for encouraging the excitation circuit (10) that produces magnetism barkhausen noise signal of generation device, and set up and be in be used for gathering on the signal generation device detection sensor (6) of magnetism barkhausen noise signal, the signal output part of detection sensor (6) is connected the signal input part of filtering amplification circuit (11).
2. The torque detection system based on the magnetic barkhausen effect according to claim 1, wherein the signal generating device comprises an elastic shaft (1), both ends of the elastic shaft (1) are connected with external torque loading devices, the elastic shaft (1) is respectively wound with a first excitation coil (4) and a second excitation coil (5) at a set distance, the excitation circuit (10) is disposed at one side of the elastic shaft (1), the signal output end of the excitation circuit (10) is respectively connected with one end of the first excitation coil (4) and one end of the second excitation coil (5), the other end of the first excitation coil (4) and the other end of the second excitation coil (5) are connected with the ground end of the excitation circuit (10), so that the first excitation coil (4) and the second excitation coil (5) form a parallel structure, and the detection sensor (6) is disposed on the elastic shaft (1) and is located on the first excitation coil (4), (5), (b) and (c) are respectively disposed on the elastic shaft 4) And a second excitation coil (5).
3. The torque detection system based on the magnetic barkhausen effect as claimed in claim 2, wherein the elastic shaft (1) is sleeved with a first sleeve frame (2) and a second sleeve frame (3) at a set distance, the first excitation coil (4) is wound on the first sleeve frame (2), and the second excitation coil (5) is wound on the second sleeve frame (3).
4. A magnetic barkhausen effect based torque detection system according to claim 1, characterized in that the first excitation coil (4) and the second excitation coil (5) are wound clockwise or counterclockwise, and the magnetic poles are generated in the sequence of N-S-N-S or S-N-S-N.
5. The magnetic Barkhausen effect-based torque detection system according to claim 1, characterized in that the excitation circuit (10) comprises a signal generating circuit (10.1) for generating a sinusoidal signal, a voltage amplifying circuit (10.2) for performing voltage bias and amplification on the generated sinusoidal signal and a power amplifying circuit (10.3) for performing power amplification on a signal output by the voltage amplifying circuit (10.2) which are sequentially connected in series, the output end of the power amplifying circuit (10.3) is respectively connected with one end of a first magnet exciting coil (4) and one end of a second magnet exciting coil (5) in the signal generating device, the ground end of a power supply circuit (10.4) for supplying power to the signal generating circuit (10.1), the voltage amplifying circuit (10.2) and the power amplifying circuit (10.3) is connected with the other ends of the first excitation coil (4) and the second excitation coil (5) in the signal generating device.
6. The torque detection system based on the magnetic barkhausen effect as claimed in claim 1, wherein the detection sensor (6) comprises a cylindrical manganese-zinc ferrite, a coil wound by an enameled wire is arranged on the cylindrical manganese-zinc ferrite, an insulating tape (9) is wrapped on the outer side of the coil, and during detection, the lower end of the cylindrical manganese-zinc ferrite is positioned on the elastic shaft (1) in the signal generation device.
7. The torque detection system based on the magnetic Barkhausen effect is characterized in that a permalloy outer cover (7) with an opening at the lower end is sleeved on the outer side of the detection sensor (6), a copper outer cover (8) with an opening at the lower end is sleeved on the outer side of the permalloy outer cover (7), and two ends of a coil of the detection sensor (6) sequentially penetrate through holes formed in the upper end of the permalloy outer cover (7) and the upper end of the copper outer cover (8) to be connected with a signal input end of the filtering and amplifying circuit (11).
8. The detection method of the torque detection system based on the magnetic Barkhausen effect as claimed in claim 1, characterized by comprising the following steps:
1) a sinusoidal signal is supplied to the first excitation coil (4) and the second excitation coil (5) through an excitation circuit (10);
2) the spring property shaft (1) is excited by a first excitation coil (4) and a second excitation coil (5), an external torque is applied to two ends of the spring property shaft (1), and a magnetic Barkhausen noise signal released by the spring property shaft (1) changes;
3) the magnetic Barkhausen noise signals generated on the elastic shaft (1) are collected through the detection sensor (6) and sent to the filtering and amplifying circuit (11) for filtering and amplifying;
4) collecting the filtered and amplified magnetic Barkhausen noise signal by a signal collecting card (12), and sending the signal to an upper computer (13);
5) repeating the steps 1) to 4) until the set times are reached, and obtaining a magnetic Barkhausen noise signal corresponding to the torque applied for multiple times by the upper computer (13);
6) the relationship between the torque and the corresponding magnetic Barkhausen noise signal is established, so that the corresponding torque can be obtained through the magnetic Barkhausen noise signal according to the relationship between the torque and the corresponding magnetic Barkhausen noise signal.
9. The detection method of the torque detection system based on the magnetic barkhausen effect according to claim 8, characterized in that in step 1), the signal generating circuit AD9833(10.1) in the exciting circuit (10) generates a sinusoidal signal, the sinusoidal signal is subjected to voltage bias and amplification through the voltage amplifying circuit OP27(10.2), and finally the sinusoidal signal is subjected to power amplification through the power amplifying circuit LT1210(10.3) and output to the first exciting coil (4) and the second exciting coil (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911216544.0A CN111060241A (en) | 2019-12-02 | 2019-12-02 | Torque detection system and method based on magnetic Barkhausen effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911216544.0A CN111060241A (en) | 2019-12-02 | 2019-12-02 | Torque detection system and method based on magnetic Barkhausen effect |
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| CN111060241A true CN111060241A (en) | 2020-04-24 |
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| CN201911216544.0A Pending CN111060241A (en) | 2019-12-02 | 2019-12-02 | Torque detection system and method based on magnetic Barkhausen effect |
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Citations (8)
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| CN102401708A (en) * | 2011-11-24 | 2012-04-04 | 北京科技大学 | Torque sensor based on magnetostriction effect and torque measuring method |
| CN203572803U (en) * | 2013-12-10 | 2014-04-30 | 哈尔滨理工大学 | Grinding burn detecting device for bearing ring based on Barkhausen effect |
| CN104912787A (en) * | 2015-06-16 | 2015-09-16 | 江苏大学 | Method for constructing mapping curve analyzing liquid phase operation performance of nuclear main pump |
| CN205861255U (en) * | 2016-08-09 | 2017-01-04 | 哈尔滨理工大学 | Ferromagnetic material stress based on barkhausen detection device |
| CN107576425A (en) * | 2017-08-25 | 2018-01-12 | 北京科技大学 | A kind of device and method of non-contact measurement ferromagnetic material stress |
| CN108519180A (en) * | 2018-03-31 | 2018-09-11 | 天津大学 | A kind of torque measuring method based on electronickelling elastic shaft |
| CN108692840A (en) * | 2018-03-31 | 2018-10-23 | 天津大学 | Signal detecting method based on magnetomechanical effects torque sensor |
-
2019
- 2019-12-02 CN CN201911216544.0A patent/CN111060241A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007116218A1 (en) * | 2006-04-11 | 2007-10-18 | Sensor Technology Limited | Measuring physical quantities |
| CN102401708A (en) * | 2011-11-24 | 2012-04-04 | 北京科技大学 | Torque sensor based on magnetostriction effect and torque measuring method |
| CN203572803U (en) * | 2013-12-10 | 2014-04-30 | 哈尔滨理工大学 | Grinding burn detecting device for bearing ring based on Barkhausen effect |
| CN104912787A (en) * | 2015-06-16 | 2015-09-16 | 江苏大学 | Method for constructing mapping curve analyzing liquid phase operation performance of nuclear main pump |
| CN205861255U (en) * | 2016-08-09 | 2017-01-04 | 哈尔滨理工大学 | Ferromagnetic material stress based on barkhausen detection device |
| CN107576425A (en) * | 2017-08-25 | 2018-01-12 | 北京科技大学 | A kind of device and method of non-contact measurement ferromagnetic material stress |
| CN108519180A (en) * | 2018-03-31 | 2018-09-11 | 天津大学 | A kind of torque measuring method based on electronickelling elastic shaft |
| CN108692840A (en) * | 2018-03-31 | 2018-10-23 | 天津大学 | Signal detecting method based on magnetomechanical effects torque sensor |
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Application publication date: 20200424 |