CN117147015A - Contactless torque measurement system - Google Patents
Contactless torque measurement system Download PDFInfo
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- CN117147015A CN117147015A CN202311347495.0A CN202311347495A CN117147015A CN 117147015 A CN117147015 A CN 117147015A CN 202311347495 A CN202311347495 A CN 202311347495A CN 117147015 A CN117147015 A CN 117147015A
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- 238000005259 measurement Methods 0.000 title claims abstract description 40
- 230000005291 magnetic effect Effects 0.000 claims abstract description 115
- 230000006698 induction Effects 0.000 claims description 30
- 230000005284 excitation Effects 0.000 claims description 18
- 239000003990 capacitor Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000003993 interaction Effects 0.000 claims description 8
- 230000007613 environmental effect Effects 0.000 claims description 7
- 230000003321 amplification Effects 0.000 claims description 6
- 230000001939 inductive effect Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 abstract description 14
- 239000000806 elastomer Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/12—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
- G01L1/127—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress by using inductive means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0042—Force sensors associated with force applying means applying a torque
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0057—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to spring-shaped elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
The application discloses a non-contact torque measurement system, belongs to the field of torque measurement, and is used for performing non-contact measurement on the torque of an elastomer, so that the technical problem of limited torque measurement scene is solved. Considering that the deformation of an elastomer can influence the distribution of a magnetic field, the application can set an object to be measured in an alternating magnetic field generated by a magnetic field generating device, then, the alternating magnetic field in a first state (the object to be measured is not stressed) is induced by a measuring device and a first induced voltage is generated, the alternating magnetic field in a second state (the object to be measured is stressed) is induced and a second induced voltage is generated, and finally, the processing device can determine the torque suffered by the object to be measured in the alternating magnetic field through the inverse magnetic effect principle based on the first induced voltage and the second induced voltage, the torque measurement can be realized without contacting the object to be measured, the application scene of the torque measurement is expanded, and the working efficiency is improved.
Description
Technical Field
The application relates to the field of torque measurement, in particular to a contactless torque measurement system.
Background
The torque is an important parameter for the elastomer, and in the prior art, when the torque is measured on the elastomer, a commonly used measuring device is required to be in contact with an object to be measured, however, in certain situations, the measuring device is not suitable for being in direct contact with the object to be measured, that is, the application situations of the current torque measuring device are limited, so that the torque is difficult to measure on the elastomer in certain situations, and the working efficiency is reduced.
Therefore, how to provide a solution to the above technical problem is a problem that a person skilled in the art needs to solve at present.
Disclosure of Invention
The application aims to provide a non-contact torque measurement system, which can determine the torque suffered by an object to be measured in an alternating magnetic field through a reverse magnetic effect principle, can realize torque measurement without contacting with the object to be measured, expands the application scene of torque measurement and improves the working efficiency.
In order to solve the above technical problems, the present application provides a contactless torque measurement system, including:
a magnetic field generating device for generating an alternating magnetic field;
the measuring device is arranged in the alternating magnetic field and is used for inducing the alternating magnetic field in a first state and generating a first induction voltage, and inducing the alternating magnetic field in a second state and generating a second induction voltage;
the processing device is connected with the measuring device and is used for determining the torque suffered by the object to be measured in the alternating magnetic field through the inverse magnetic effect principle based on the first induced voltage and the second induced voltage;
the first state is a magnetic field state of the object to be detected when the object to be detected is not stressed, and the second state is a magnetic field state of the object to be detected when the object to be detected is stressed.
Preferably, the magnetic field generating device includes:
an excitation signal source for generating an alternating voltage signal;
the first power amplifying device is connected with the excitation signal source and is used for amplifying the alternating voltage signal by a specified multiple;
and the transmitting coil is connected with the first power amplifying device and is used for generating an alternating magnetic field based on the alternating voltage signal amplified by the first power amplifying device.
Preferably, the processing device comprises:
the second power amplifying device is connected with the measuring device and is used for amplifying the first induced voltage and the second induced voltage by specified times respectively;
the analog-to-digital conversion circuit is connected with the second power amplification device and is used for converting the signal amplified by the second power amplification device into a digital signal;
and the processor is connected with the analog-to-digital conversion circuit and is used for determining the torque suffered by the object to be detected in the alternating magnetic field through the inverse magnetic effect principle based on the digital signal.
Preferably, the contactless torque measurement system further comprises a prompting device connected with the processor;
the processor is also used for controlling the prompting device to prompt the torque born by the object to be detected;
the prompting device comprises a local prompter and a network terminal.
Preferably, the measuring means comprises a plurality of induction coils arranged around the transmitting coil.
Preferably, the second power amplifying device comprises a first operational amplifier, a second operational amplifier, a first diode, a second diode, a feedback resistor, a resistor and a capacitor;
the non-inverting input end of the first operational amplifier is connected with the measuring device, the inverting input end of the first operational amplifier is connected with the anode of the first diode and the first end of the feedback resistor respectively, the cathode of the first diode is connected with the output end of the first operational amplifier and the anode of the second diode respectively, the cathode of the second diode is connected with the first end of the resistor, the first end of the capacitor and the non-inverting input end of the second operational amplifier respectively, the inverting input end of the second operational amplifier is connected with the second end of the feedback resistor and the output end of the second operational amplifier respectively, and the second end of the resistor and the second end of the capacitor are grounded together.
Preferably, the excitation signal source is a frequency synthesizer or a signal generator.
Preferably, the first power amplifying device is a general-purpose operational amplifier of at least one stage.
Preferably, the contactless torque measurement system further comprises a man-machine interaction device connected with the processing device;
the processing device is also used for setting the signal frequency of the alternating voltage signal generated by the excitation signal source under the control of the man-machine interaction device.
Preferably, the contactless torque measurement system further comprises:
the environment magnetic field detection device is connected with the processing device and is used for detecting the magnetic field intensity of the area where the magnetic field generation device is located;
the processing device is also used for controlling the prompting device to prompt that the environmental magnetic field is too strong when the magnetic field intensity of the area where the magnetic field generating device is located is larger than a preset threshold value.
The application provides a non-contact torque measurement system, which considers that deformation of an elastomer can influence distribution of a magnetic field where the elastomer is located, so that an object to be measured can be arranged in an alternating magnetic field generated by a magnetic field generating device, then the alternating magnetic field in a first state (the object to be measured is not stressed) is induced by a measurement device to generate a first induction voltage, the alternating magnetic field in a second state (the object to be measured is stressed) is induced to generate a second induction voltage, finally a processing device can determine torque received by the object to be measured in the alternating magnetic field through a reverse magnetic effect principle based on the first induction voltage and the second induction voltage, torque measurement can be realized without contacting the object to be measured, application fields of torque measurement are expanded, and work efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly explain the related art and the drawings required to be used in the embodiments, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of a contactless torque measurement system according to the present application;
FIG. 2 is a schematic diagram of another non-contact torque measurement system according to the present application;
fig. 3 is a schematic diagram of a coil layout according to the present application.
Detailed Description
The application provides a non-contact torque measurement system, which can determine the torque suffered by an object to be measured in an alternating magnetic field through a reverse magnetic effect principle, can realize torque measurement without contacting with the object to be measured, expands the application scene of torque measurement and improves the working efficiency.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a contactless torque measurement system according to the present application, where the contactless torque measurement system includes:
a magnetic field generating device 1 for generating an alternating magnetic field;
the measuring device 2 is arranged in the alternating magnetic field and is used for inducing the alternating magnetic field in the first state and generating a first induction voltage, and inducing the alternating magnetic field in the second state and generating a second induction voltage;
the processing device 3 is connected with the measuring device 2 and is used for determining the torque suffered by the object to be measured in the alternating magnetic field through the inverse magnetic effect principle based on the first induced voltage and the second induced voltage;
the first state is a magnetic field state when the object to be measured is not stressed, and the second state is a magnetic field state when the object to be measured is stressed.
Specifically, considering the technical problems in the background art, in combination with considering that deformation of an elastomer can affect distribution of a magnetic field where the elastomer is located, and the inverse magnetic effect principle can determine torque of the elastomer based on magnetic field states before and after deformation of the elastomer, so that in the embodiment of the application, torque to be received by an object to be detected is to be determined based on the influence of deformation of the elastomer on the magnetic field through the inverse magnetic effect principle, a magnetic field generating device 1 for generating an alternating magnetic field is provided in the embodiment of the application, then an alternating magnetic field in a first state (when the object to be detected is not stressed) is induced by using a measuring device 2 provided in the alternating magnetic field, a first induction voltage is generated, an alternating magnetic field in a second state (when the object to be detected is stressed) is induced, and a second induction voltage is generated, and finally, the torque to be received by the object to be detected in the alternating magnetic field is determined by the processing device 3 based on the first induction voltage and the second induction voltage through the inverse magnetic effect principle.
The positions of the object to be measured and the magnetic field generating device 1 can be set by staff autonomously, so that deformation of the object to be measured can be ensured to have significant influence on the magnetic field.
Specifically, based on the first induced voltage and the second induced voltage, the specific process of determining the torque suffered by the object to be detected in the alternating magnetic field through the inverse magnetic effect principle can be to determine the torque suffered by the object to be detected in the alternating magnetic field through the inverse magnetic effect principle based on the difference value of subtracting the first induced voltage from the second induced voltage, that is, determine the torque of the object to be detected through the magnetic field change condition before and after the stress of the object to be detected.
In addition, it should be noted that, before the first induced voltage and the second induced voltage are processed, they may be filtered by a filtering device, where the filtering device may be disposed outside the processing device 3, or the processing device 3 may filter the first induced voltage and the second induced voltage, and the embodiment of the present application is not limited herein.
The application provides a non-contact torque measurement system, which considers that deformation of an elastomer can influence distribution of a magnetic field where the elastomer is located, so that an object to be measured can be arranged in an alternating magnetic field generated by a magnetic field generating device, then the alternating magnetic field in a first state (the object to be measured is not stressed) is induced by a measurement device to generate a first induction voltage, the alternating magnetic field in a second state (the object to be measured is stressed) is induced to generate a second induction voltage, finally a processing device can determine torque received by the object to be measured in the alternating magnetic field through a reverse magnetic effect principle based on the first induction voltage and the second induction voltage, torque measurement can be realized without contacting the object to be measured, application fields of torque measurement are expanded, and work efficiency is improved.
Based on the above embodiments:
as a preferred embodiment, the magnetic field generating device 1 includes:
an excitation signal source for generating an alternating voltage signal;
the first power amplifying device is connected with the excitation signal source and is used for amplifying the alternating voltage signal by a specified multiple;
and a transmitting coil connected with the first power amplifying device and used for generating an alternating magnetic field based on the alternating voltage signal amplified by the first power amplifying device.
Specifically, the first power amplifying means may amplify the alternating voltage signal generated by the excitation signal source by a specified multiple so as to drive the transmitting coil to generate the alternating magnetic field by the amplified alternating voltage signal.
The frequency of the generated alternating voltage signal can be set through the excitation signal source, the power of the alternating voltage signal can be adjusted through the first power amplifying device, the frequency of the alternating voltage signal can be matched with the size of an object to be measured, namely, a worker can set the frequency of the alternating voltage signal according to the size of the object to be measured, so that the influence of deformation of the object to be measured on a magnetic field is enhanced.
As a preferred embodiment, the processing device 3 comprises:
the second power amplifying device is connected with the measuring device 2 and is used for amplifying the first induced voltage and the second induced voltage by specified times respectively;
the analog-to-digital conversion circuit is connected with the second power amplifying device and is used for converting the signal amplified by the second power amplifying device into a digital signal;
and the processor is connected with the analog-to-digital conversion circuit and is used for determining the torque suffered by the object to be detected in the alternating magnetic field based on the digital signal through the inverse magnetic effect principle.
Specifically, in order to facilitate the processor to accurately identify the signal, in the embodiment of the present application, the second power amplifying device amplifies the first induced voltage and the second induced voltage by a specified multiple, where the amplification of the two induced voltages may be identical, so as to simplify the circuit structure.
In order to facilitate direct processing of the processor, in the embodiment of the present application, the signal amplified by the second power amplifying device may be converted into a digital signal by an analog-to-digital conversion circuit, where the analog-to-digital conversion circuit may be independent of the processor or integrated into the processor, and the embodiment of the present application is not limited herein.
Specifically, the processor may be of various types, for example, may be a single chip microcomputer, etc., and the embodiment of the present application is not limited herein.
As a preferred embodiment, the contactless torque measurement system further comprises a prompting device connected with the processor;
the processor is also used for controlling the prompting device to prompt the torque born by the object to be tested;
the prompting device comprises a local prompter and a network terminal.
Specifically, in order to facilitate a user to obtain the torque suffered by the object to be tested, the processor in the embodiment of the application can prompt the torque suffered by the object to be tested through the prompt device, the local prompt can prompt locally in the torque measurement system, the network terminal can realize remote prompt, and users in different positions can receive prompt contents conveniently.
The local prompter and the network terminal may be of various types, and the embodiment of the present application is not limited herein.
Furthermore, a memory connected to the processing device 3 may be provided for storing the determined torque and its associated data.
As a preferred embodiment, the measuring device 2 comprises a plurality of induction coils arranged around the transmitting coil.
Specifically, in order to further enhance the induction effect of the magnetic field change, the measuring device 2 in the embodiment of the present application may include a plurality of induction coils that are disposed around the transmitting coil, so as to more comprehensively sense the magnetic field change, and facilitate enhancing the accuracy of the finally determined torque value.
Of course, the measuring device 2 may be of various types other than a plurality of induction coils disposed around the transmitting coil, and the embodiment of the present application is not limited herein.
In addition, it should be noted that the shapes, the numbers and the position layouts of the transmitting coils and the induction coils can be flexibly set to achieve the purpose of increasing the influence degree of the object to be measured on the magnetic field signals, so as to influence the coupling property between the transmitting coils and the induction coils, for example, for the shape, the transmitting coils and the induction coils can be in various shapes, such as annular or rectangular, etc., for the shape, the transmitting coils and the induction coils should be at least one, for the position layout, the position relationship among the transmitting coils, the induction coils and the object to be measured can be flexibly set, and the purpose of increasing the influence degree of the object to be measured on the magnetic field signals should also be achieved, please refer to fig. 2, which is a layout diagram of the transmitting coils and the induction coils provided in fig. 2, wherein the circles with cross marks can represent one kind of coils (such as the transmitting coils, etc.), and the circles without cross marks can represent another kind of coils.
As a preferred embodiment, the second power amplifying device includes a first operational amplifier, a second operational amplifier, a first diode, a second diode, a feedback resistor, a resistor, and a capacitor;
the non-inverting input end of the first operational amplifier is connected with the measuring device, the inverting input end of the first operational amplifier is respectively connected with the anode of the first diode and the first end of the feedback resistor, the cathode of the first diode is respectively connected with the output end of the first operational amplifier and the anode of the second diode, the cathode of the second diode is respectively connected with the first end of the resistor, the first end of the capacitor and the non-inverting input end of the second operational amplifier, the inverting input end of the second operational amplifier is respectively connected with the second end of the feedback resistor and the output end of the second operational amplifier, and the second end of the resistor and the second end of the capacitor are commonly grounded.
Specifically, for better explanation of the embodiment of the present application, please refer to fig. 3, fig. 3 is a schematic structural diagram of a second power amplifying device provided by the present application, in fig. 3, the first operational amplifier is A1, the second operational amplifier is A2, the first diode is D1, the second diode is D2, the feedback resistor is Rf, the resistor is R, and the capacitor is C, the input voltage Vi may be the output voltage of the measuring device 2, that is, the first sensing voltage/the second sensing voltage, vo is the output voltage of the second operational amplifier, when Vi is greater than Vo, the A1 outputs the positive power voltage, D1 is turned off, D2 is turned on, and C is rapidly charged to Vi. When Vi is smaller than Vo, A1 outputs negative power supply voltage, D1 is turned on, D2 is turned off, and C slowly discharges through a feedback resistor Rc; the second power amplification device in the embodiment of the application has the advantages of simple structure, low cost, strong stability and the like.
Of course, the second power amplifying device may be of various types other than this specific configuration, and the embodiment of the present application is not limited herein.
As a preferred embodiment, the excitation signal source is a frequency synthesizer or a signal generator.
Specifically, the excitation signal source is a frequency synthesizer or a signal generator, and has the advantages of low cost, strong stability and the like.
The frequency synthesizer can specifically select AD5930, can emit signals with unequal frequencies of 80K-450KHz, and can generate synthesized analog or digital frequency stepping waveforms by adopting an embedded digital processing technology supporting enhanced frequency control. The processor may be programmed via a bus, such as SPI (Serial Peripheral Interface, synchronous serial bus), and the output frequency signal is power amplified and applied to the transmit coil.
Of course, besides the excitation signal source being a frequency synthesizer or a signal generator, the excitation signal source may be of various other types, which are not limited herein.
As a preferred embodiment, the first power amplifying means is a general purpose operational amplifier of at least one stage.
In particular, the universal operational amplifier of at least one stage has the advantages of simple structure, low cost and the like.
Of course, the first power amplifying device may be of various types other than this specific type, and the embodiment of the present application is not limited herein.
As a preferred embodiment, the contactless torque measuring system further comprises man-machine interaction means connected to the processing means 3;
the processing device 3 is further used for setting the signal frequency of the alternating voltage signal generated by the excitation signal source under the control of the man-machine interaction device.
Specifically, in order to facilitate the adjustment of the signal frequency, the embodiment of the application is further provided with a man-machine interaction device through which a user can interact with the processing device 3, so as to set the signal frequency of the alternating voltage signal generated by the excitation signal source.
The man-machine interaction device may be of various types, for example, a mouse, a display, etc., which is not limited herein.
As a preferred embodiment, the contactless torque measurement system further includes:
an ambient magnetic field detection means connected to the processing means 3 for detecting the magnetic field strength of the region in which the magnetic field generation means 1 is located;
the processing device 3 is further configured to control the presentation device to present that the environmental magnetic field is too strong when the magnetic field strength of the area where the magnetic field generating device 1 is located is greater than a preset threshold value.
Specifically, considering that the environmental magnetic field is usually in a stable state, if the intensity of the environmental magnetic field is too high, it is likely to affect the torque determination process, so in the embodiment of the present application, an environmental magnetic field detection device connected to the processing device 3 may be provided to detect the magnetic field intensity of the area where the magnetic field generating device 1 is located, and when the magnetic field intensity of the area where the magnetic field generating device 1 is located is greater than a preset threshold value, the processing device 3 may control the prompting device to prompt that the environmental magnetic field is too strong, so as to avoid generating an erroneous torque result, which is beneficial to improving the detection accuracy of the torque.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A contactless torque measurement system, comprising:
a magnetic field generating device for generating an alternating magnetic field;
the measuring device is arranged in the alternating magnetic field and is used for inducing the alternating magnetic field in a first state and generating a first induction voltage, and inducing the alternating magnetic field in a second state and generating a second induction voltage;
the processing device is connected with the measuring device and is used for determining the torque suffered by the object to be measured in the alternating magnetic field through the inverse magnetic effect principle based on the first induced voltage and the second induced voltage;
the first state is a magnetic field state of the object to be detected when the object to be detected is not stressed, and the second state is a magnetic field state of the object to be detected when the object to be detected is stressed.
2. The contactless torque measurement system of claim 1, wherein the magnetic field generating means comprises:
an excitation signal source for generating an alternating voltage signal;
the first power amplifying device is connected with the excitation signal source and is used for amplifying the alternating voltage signal by a specified multiple;
and the transmitting coil is connected with the first power amplifying device and is used for generating an alternating magnetic field based on the alternating voltage signal amplified by the first power amplifying device.
3. The contactless torque measurement system of claim 2, wherein the processing means comprises:
the second power amplifying device is connected with the measuring device and is used for amplifying the first induced voltage and the second induced voltage by specified times respectively;
the analog-to-digital conversion circuit is connected with the second power amplification device and is used for converting the signal amplified by the second power amplification device into a digital signal;
and the processor is connected with the analog-to-digital conversion circuit and is used for determining the torque suffered by the object to be detected in the alternating magnetic field through the inverse magnetic effect principle based on the digital signal.
4. A system according to claim 3, further comprising a prompting device coupled to the processor;
the processor is also used for controlling the prompting device to prompt the torque born by the object to be detected;
the prompting device comprises a local prompter and a network terminal.
5. The system of claim 4, wherein the measuring device comprises a plurality of induction coils disposed around the transmitting coil.
6. A contactless torque measurement system according to claim 3, wherein the second power amplifying means comprises a first operational amplifier, a second operational amplifier, a first diode, a second diode, a feedback resistor, a capacitor;
the non-inverting input end of the first operational amplifier is connected with the measuring device, the inverting input end of the first operational amplifier is connected with the anode of the first diode and the first end of the feedback resistor respectively, the cathode of the first diode is connected with the output end of the first operational amplifier and the anode of the second diode respectively, the cathode of the second diode is connected with the first end of the resistor, the first end of the capacitor and the non-inverting input end of the second operational amplifier respectively, the inverting input end of the second operational amplifier is connected with the second end of the feedback resistor and the output end of the second operational amplifier respectively, and the second end of the resistor and the second end of the capacitor are grounded together.
7. The system of claim 2, wherein the excitation signal source is a frequency synthesizer or a signal generator.
8. The system of claim 2, wherein the first power amplifying means is a generic operational amplifier of at least one stage.
9. The system of claim 2, further comprising a human-machine interaction device coupled to the processing device;
the processing device is also used for setting the signal frequency of the alternating voltage signal generated by the excitation signal source under the control of the man-machine interaction device.
10. The contactless torque measurement system according to any one of claims 1 to 9, further comprising:
the environment magnetic field detection device is connected with the processing device and is used for detecting the magnetic field intensity of the area where the magnetic field generation device is located;
the processing device is also used for controlling the prompting device to prompt that the environmental magnetic field is too strong when the magnetic field intensity of the area where the magnetic field generating device is located is larger than a preset threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311347495.0A CN117147015A (en) | 2023-10-18 | 2023-10-18 | Contactless torque measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311347495.0A CN117147015A (en) | 2023-10-18 | 2023-10-18 | Contactless torque measurement system |
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| Publication Number | Publication Date |
|---|---|
| CN117147015A true CN117147015A (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311347495.0A Pending CN117147015A (en) | 2023-10-18 | 2023-10-18 | Contactless torque measurement system |
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| Country | Link |
|---|---|
| CN (1) | CN117147015A (en) |
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2023
- 2023-10-18 CN CN202311347495.0A patent/CN117147015A/en active Pending
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