CN114469103A - Biomagnetic detection device and control method thereof - Google Patents
Biomagnetic detection device and control method thereof Download PDFInfo
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- CN114469103A CN114469103A CN202210066770.0A CN202210066770A CN114469103A CN 114469103 A CN114469103 A CN 114469103A CN 202210066770 A CN202210066770 A CN 202210066770A CN 114469103 A CN114469103 A CN 114469103A
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- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
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Abstract
The invention discloses a biomagnetic detection device and a control method thereof, wherein the biomagnetic detection device comprises: a plurality of movable plates; the magnetic force detection devices are arranged on each movable plate, and the magnetic force detection devices on each movable plate are arranged at intervals; the distance measuring device comprises a plurality of distance measuring devices, a plurality of distance measuring devices and a plurality of distance measuring devices, wherein the distance measuring devices are arranged on each movable plate at intervals, and each distance measuring device is used for detecting the distance between the distance measuring device and a detected organism; the driving devices are respectively in transmission connection with the movable plates and are respectively electrically connected with the distance measuring devices on the movable plates, and the driving devices are suitable for driving the movable plates to enable the distance measuring devices to be attached to the tested organism; the base, a plurality of drive arrangement all install on the base. The biomagnetic detection device provided by the embodiment of the invention has the advantages of accuracy in detection, strong applicability and the like.
Description
Technical Field
The invention relates to the technical field of quantum magnetic measurement, in particular to a biomagnetic detection device and a control method of the biomagnetic detection device.
Background
According to the Biot-Saval law, the bioelectric current of muscle cells and nerve cells of an organism can generate a biological magnetic field, the magnetic field generated by the organism contains valuable information of physiological processes, pathology and the like, the signal intensity of the biological magnetic field is relatively stable, the transmission of the biological magnetic field signal is simple and easy to accurately position relative to the biological current, and meanwhile, time domain related information can be provided. Biomagnetic detection techniques have been increasingly used in a variety of contexts.
In the related art biomagnetic detection device, because of individual differences of detected organisms, the accuracy of the detection result is difficult to guarantee.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a biomagnetic detection device which has the advantages of accurate detection, strong applicability and the like.
The invention also provides a control method of the biological magnetic detection device.
To achieve the above object, an embodiment according to a first aspect of the present invention proposes a biomagnetic detection device, including: a plurality of movable plates; the magnetic force detection devices are arranged on the movable plates, and the magnetic force detection devices on the movable plates are arranged at intervals; the distance measuring device comprises a plurality of distance measuring devices, a plurality of distance measuring devices and a plurality of distance measuring devices, wherein the distance measuring devices are arranged on each movable plate at intervals, and each distance measuring device is used for detecting the distance between the distance measuring device and a detected organism; the driving devices are respectively in transmission connection with the movable plates and are respectively electrically connected with the distance measuring devices on the movable plates, and the driving devices are suitable for driving the movable plates to enable the distance measuring devices to be attached to the tested organism; the driving device is arranged on the base.
The biomagnetic detection device provided by the embodiment of the invention has the advantages of accurate detection, strong applicability and the like.
In addition, the biomagnetic detection device according to the above embodiment of the invention can also have the following additional technical features:
according to an embodiment of the present invention, four magnetic force detection devices and four distance measurement devices are disposed on each of the movable plates, the movable plates are rectangular, the four magnetic force detection devices on each of the movable plates are respectively located at four corners of the movable plate, and the four distance measurement devices on each of the movable plates are respectively adjacent to centers of four sides of the movable plate.
According to one embodiment of the present invention, the driving device includes: the vertical driving arm is movably arranged on the base along a first direction; the linear motor is in transmission connection with the vertical driving arm; a transverse swing arm swingably connected to the vertical driving arm in a second direction; the transverse driving joint is connected with the vertical driving arm through the transverse driving joint and drives the transverse swinging arm to swing in the second direction; a longitudinal swing arm swingably connected with said transverse swing arm in a third direction, said first direction, said second direction and said third direction being orthogonal to each other; the longitudinal swing arm is connected with the transverse swing arm through the longitudinal driving joint, and the longitudinal driving joint drives the longitudinal swing arm to swing in the third direction.
According to one embodiment of the invention, the distance measuring device is a laser distance measuring device and the magnetic force detecting device is an atomic magnetometer.
According to an embodiment of the present invention, the magnetism detecting apparatus includes: a laser; a collimating lens; a half-wave plate; an atomic gas chamber in which an alkali metal is encapsulated; the non-magnetic heating device is used for heating the atomic gas chamber; the temperature control device is electrically connected with the non-magnetic heating device and is used for detecting the temperature of the atomic gas chamber so as to adjust the temperature of the non-magnetic heating device; and laser emitted by the laser sequentially passes through the collimating lens, the half-wave plate and the atomic gas chamber to reach the photoelectric detector.
According to one embodiment of the present invention, the magnetic force detection apparatus further includes a first mirror between the half-wave plate and the atomic gas cell on the optical path of the laser, and a second mirror between the atomic gas cell and the photodetector on the optical path of the laser.
According to one embodiment of the present invention, the biomagnetic detection device further comprises a magnetic shield for shielding external magnetic interference.
According to one embodiment of the invention, the biomagnetic detection device further comprises a detection bed adapted to support the organism to be detected.
An embodiment according to a second aspect of the present invention proposes a control method of a biomagnetic detection device according to an embodiment of the first aspect of the present invention, the control method of the biomagnetic detection device comprising the steps of:
a plurality of said ranging devices are operated;
the driving devices drive the movable plate according to the detection values of the distance measuring devices until the detection values of the distance measuring devices are equal;
the driving devices drive the movable plate to be attached to the tested organism according to the detection values of the distance measuring devices.
According to the control method of the biomagnetic detection device provided by the embodiment of the invention, by utilizing the biomagnetic detection device provided by the embodiment of the first aspect of the invention, the advantages of accurate detection, strong applicability and the like are achieved.
According to an embodiment of the present invention, in the process that the plurality of driving devices drive the movable plate according to the detection values of the plurality of distance measuring devices until the detection values of the plurality of distance measuring devices are equal, each of the driving devices determines a driving direction according to a difference value of the detection values of two distance measuring devices on the connected movable plate.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a biomagnetic detection device according to an embodiment of the invention.
Fig. 2 is a partial structural schematic diagram of a biomagnetic detection device according to an embodiment of the invention.
Fig. 3 is a partial structural schematic diagram of a biomagnetic detection device according to an embodiment of the invention.
Fig. 4 is a partial structural schematic diagram of a biomagnetic detection device according to an embodiment of the invention.
FIG. 5 is a schematic structural diagram of a magnetic force detection apparatus of a biomagnetic detection apparatus according to an embodiment of the present invention.
Fig. 6 is a flowchart of a control method of a bio-magnetic detection apparatus according to an embodiment of the present invention.
Reference numerals: the biological magnetic detection device comprises a biological magnetic detection device 1, a movable plate 100, a magnetic detection device 200, a laser 210, a collimating lens 220, a half-wave plate 230, an atom gas chamber 240, a nonmagnetic heating device 250, a temperature control device 260, a photoelectric detector 270, a first reflecting mirror 280, a second reflecting mirror 290, a distance measuring device 300, a driving device 400, a vertical driving arm 410, a linear motor 420, a transverse swinging arm 430, a transverse driving joint 440, a longitudinal swinging arm 450, a longitudinal driving joint 460, a base 500, a magnetic shielding cover 600, a detection bed 700 and a detected organism 2.
Detailed Description
The present application is based on the discovery and recognition by the inventors of the following facts and problems:
in the related art biomagnetic detection device, because of individual differences of detected organisms, the accuracy of the detection result is difficult to guarantee.
Specifically, in the bio-magnetic detection apparatus in the related art, the plurality of detection probes are arranged in different shapes according to the detection positions, for example, in a helmet shape when detecting the head, and in a shape adapted to the chest when detecting the chest, but due to individual differences, the distance from each detection probe to the surface of the detected position is difficult to be ensured to be completely equal, so that the detection probes cannot be completely ensured to be attached to the detected position of the detected living being. Therefore, the detection result is deviated due to the difference of the distance, and the accuracy of the detection result is difficult to ensure.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
A biomagnetic detection device 1 according to an embodiment of the present invention is described below with reference to the drawings.
As shown in fig. 1 to 6, the biomagnetic detection device 1 according to the embodiment of the present invention includes a plurality of movable plates 100, a plurality of magnetic force detection devices 200, a plurality of distance measurement devices 300, a plurality of driving devices 400, and a base 500.
A plurality of magnetic force detecting devices 200 are disposed on each movable plate 100, and the plurality of magnetic force detecting devices 200 on each movable plate 100 are disposed at intervals. Each movable plate 100 is provided with a plurality of distance measuring devices 300, the plurality of distance measuring devices 300 on each movable plate 100 are arranged at intervals, and each distance measuring device 300 is used for detecting the distance between the distance measuring device 300 and the measured organism 2. The driving devices 400 are respectively connected to the movable plates 100 in a driving manner and electrically connected to the distance measuring devices 300 on the movable plates 100, and the driving devices 400 are adapted to drive the movable plates 100 to attach the distance measuring devices 300 to the tested living body 2. A plurality of driving devices 400 are mounted on the base 500.
Specifically, the test organism 2 may be a human body. The biomagnetic detection device 1 can mainly detect a part having an important organ, such as the head or the chest. The plurality of moving plates 100 may be arranged in an array. Fig. 2 shows an embodiment in which 9 movable plates are arranged in an array of 3 by 3. Those skilled in the art will understand that the number and arrangement of the movable plates 100 can be adjusted according to actual requirements.
It should be further understood that a certain gap is required between adjacent movable plates 100 to ensure that the movable plates 100 can move relatively, and the smaller the gap, the smaller the dead zone of biomagnetic detection, the more accurate the detection result is.
The operation of the biomagnetic detection device 1 according to the embodiment of the present invention is briefly described below with reference to fig. 1 to 6.
The biological subject 2 is in place with the plurality of movable plates 100 spaced apart from the surface of the biological subject 2 by a predetermined distance, which is about 10 mm due to individual differences. Then, the distance measuring devices 300 are operated to measure the distance to the surface of the measured organism 2 in real time, and the driving device 400 drives the movable plate 100 according to the detection values of the distance measuring devices 300, so that the distance between the distance measuring devices 300 on the movable plates 100 and the surface of the measured organism 2 is equal. Finally, the driving device 400 drives the movable plate 100 to attach the movable plate 100 to the surface of the tested organism 2.
According to the biomagnetic detection device 1 of the embodiment of the present invention, by providing the plurality of distance measuring devices 300 and the plurality of driving devices 400, the plurality of driving devices 400 can adjust the position of the movable plate 100 according to the plurality of distance measuring devices 300, so that the distances from the plurality of distance measuring devices 300 to the surface of the measured organism 2 are equal, the distances from the plurality of magnetic detection devices 200 to the surface of the measured organism 2 are approximately equal, and finally the movable plate 100 is driven to adhere to the measured organism 2. Compared with the biomagnetic detection devices with fixed positions of a plurality of magnetic detection devices in the related art, the biomagnetic detection device can ensure that a plurality of magnetic detection devices 200 can be reliably attached to the detected organism 2, and the influence on the accuracy of the detection result caused by different distances between the magnetic detection devices 200 and the surface of the detected organism 2 is avoided.
Moreover, since the biomagnetic detection device 1 faces the detected organism 2 with different individual differences or faces different parts of the detected organism 2, reliable attachment of the magnetic detection device 200 can be ensured, and accuracy of results can be ensured, compared with the biomagnetic detection device in the related art, the biomagnetic detection device can be applied to different parts of the detected organism 2, and is applied to the detected organism 2 with different individual differences, and the biomagnetic detection device 1 has stronger applicability.
Therefore, the biomagnetic detection device 1 according to the embodiment of the invention has the advantages of accurate detection, strong applicability and the like.
A biomagnetic detection device 1 according to an embodiment of the present invention is described below with reference to the drawings.
In some embodiments of the present invention, as shown in fig. 1 to 6, a biomagnetic detection device 1 according to an embodiment of the present invention includes a plurality of movable plates 100, a plurality of magnetic force detection devices 200, a plurality of distance measurement devices 300, a plurality of driving devices 400, and a base 500.
Specifically, as shown in fig. 2 and 4, four magnetic force detecting devices 200 and four distance measuring devices 300 are disposed on each movable plate 100, the movable plate 100 is rectangular, the four magnetic force detecting devices 200 on each movable plate 100 are respectively located at four corners of the movable plate 100, and the four distance measuring devices 300 on each movable plate 100 are respectively adjacent to the centers of the four sides of the movable plate 100. This not only facilitates to improve the accuracy of the detection result, but also adjusts the position of the movable plate 100 according to the detection value of the distance measuring device 300.
More specifically, as shown in fig. 3, the driving device 400 includes a vertical driving arm 410, a linear motor 420, a lateral swing arm 430, a lateral driving joint 440, a longitudinal swing arm 450, and a longitudinal driving joint 460. The vertical driving arm 410 is movably provided on the base 500 in a first direction. The linear motor 420 is in transmission connection with the vertical driving arm 410. The transverse swing arm 430 is swingably connected to the vertical driving arm 410 in the second direction. The transverse swing arm 430 is connected to the vertical driving arm 410 through a transverse driving joint 440, and the transverse driving joint 440 drives the transverse swing arm 430 to swing in the second direction. The longitudinal swing arm 450 is swingably connected to the transverse swing arm 430 in a third direction, the first direction, the second direction, and the third direction being orthogonal to each other. The longitudinal swing arm 450 is connected to the transverse swing arm 430 by a longitudinal drive joint 460 and the longitudinal drive joint 460 drives the longitudinal swing arm 450 to swing in the third direction. Thus, the three-axis driving of the movable plate 100 can be realized, so that the driving device 400 can drive the movable plate 100 in three degrees of freedom, and the movable plate 100 can be moved to various required positions.
Alternatively, the distance measuring device 300 is a laser distance measuring device, and the magnetic force detecting device 200 is an atomic magnetometer. This can make the detection results of the distance measuring device 300 and the magnetic force detection device 200 more accurate and reliable.
Further, as shown in fig. 5, the magnetic force detecting apparatus 200 includes a laser 210, a collimating lens 220, a half-wave plate 230, an atom gas cell 240, a non-magnetic heating apparatus 250, a temperature control apparatus 260, and a photodetector 270. The atomic gas cell 240 is encapsulated with an alkali metal. The non-magnetic heating device 250 is used for heating the atom gas chamber 240. The temperature control device 260 is electrically connected with the non-magnetic heating device 250 and is used for detecting the temperature at the atom gas chamber 240 to adjust the temperature of the non-magnetic heating device 250. Laser light emitted by the laser 210 sequentially passes through the collimating lens 220, the half-wave plate 230 and the atom gas cell 240 to reach the photodetector 270. Specifically, the collimator lens 220 collimates the laser light emitted from the laser 210. The half-wave plate 230 has a phase difference equal to or an odd multiple of the circular ratio between the ordinary light and the extraordinary light when the laser light of the laser 210 passes therethrough. The alkali metal filled in the atomic gas chamber 240 is vaporized after being heated by the non-magnetic heating device 250, and changes due to the weak magnetic force change of organisms and the like, and the change of biomagnetic can be reflected by detecting the tiny change of the transmitted laser, so that the biomagnetic detection is realized. The heating device is a non-magnetic heating device 250 to avoid the interference of the magnetic force of the device itself on the detection result. The temperature control device 260 can facilitate the control of the heating temperature of the alkali metal, and improve the accuracy of the detection result. This facilitates the detection of minute biomagnetism.
Further, as shown in fig. 5, the magnetic force detecting apparatus 200 further includes a first reflecting mirror 280 and a second reflecting mirror 290, the first reflecting mirror 280 is located between the half-wave plate 230 and the atom gas cell 240 on the optical path of the laser 210, and the second reflecting mirror 290 is located between the atom gas cell 240 and the photodetector 270 on the optical path of the laser 210. Specifically, the first mirror 280 and the second mirror 290 may reflect the laser light of the laser 210 by 90 degrees, respectively. Therefore, the axial length of the magnetic force detection device 200 can be conveniently shortened, the size of the magnetic force detection device 200 can be conveniently controlled, and the space utilization rate is improved.
Advantageously, as shown in fig. 1, the biomagnetic detection device 1 further comprises a magnetic shield 600, and the magnetic shield 600 is used for shielding external magnetic interference. Thus, the influence of the magnetic force or the geomagnetism of the external electronic equipment on the detection result of the biomagnetic detection device 1 can be avoided, and the accuracy and the reliability of the detection result can be improved.
Advantageously, the biomagnetic detection device 1 further comprises a detection bed 700, the detection bed 700 being adapted to support the biological subject 2. Specifically, when the living body 2 to be measured is a human body, the human body can lie on the detection bed 700. Therefore, the stability of the tested organism 2 can be ensured conveniently, and the distance detection of the distance measuring device 300 is prevented from being influenced by the shaking of the tested organism 2.
The control method of the biomagnetic detection device 1 according to the above-described embodiment of the present invention is described below. The method comprises the following steps:
a plurality of distance measuring devices 300 are operated;
the plurality of driving devices 400 drive the movable plate 100 according to the detection values of the plurality of distance measuring devices 300 until the detection values of the plurality of distance measuring devices 300 are equal;
the plurality of driving devices 400 drive the movable plate 100 to be attached to the living body 2 based on the detection values of the plurality of distance measuring devices 300.
According to the control method of the bio-magnetic detection device of the embodiment of the present invention, by providing the plurality of distance measuring devices 300 and the plurality of driving devices 400, the plurality of driving devices 400 can adjust the position of the movable plate 100 according to the plurality of distance measuring devices 300, so that the distances from the plurality of distance measuring devices 300 to the surface of the detected organism 2 are equal, the distances from the plurality of magnetic detection devices 200 to the surface of the detected organism 2 are approximately equal, and finally the movable plate 100 is driven to be attached to the detected organism 2. Compared with the biomagnetic detection devices with fixed positions of a plurality of magnetic detection devices in the related art, the biomagnetic detection device can ensure that a plurality of magnetic detection devices 200 can be reliably attached to the detected organism 2, and the influence on the accuracy of the detection result caused by different distances between the magnetic detection devices 200 and the surface of the detected organism 2 is avoided.
Moreover, since the biomagnetic detection device 1 faces the detected organism 2 with different individual differences or faces different parts of the detected organism 2, reliable attachment of the magnetic detection device 200 can be ensured, and accuracy of results can be ensured, compared with the biomagnetic detection device in the related art, the biomagnetic detection device can be applied to different parts of the detected organism 2, and is applied to the detected organism 2 with different individual differences, and the biomagnetic detection device 1 has stronger applicability.
According to the control method of the biomagnetic detection device provided by the embodiment of the invention, by using the biomagnetic detection device 1 provided by the embodiment of the invention, the advantages of accurate detection, strong applicability and the like are achieved.
Specifically, as shown in fig. 4 and 6, in the process in which the plurality of driving devices 400 drive the movable plate 100 according to the detection values of the plurality of distance measuring devices 300 until the detection values of the plurality of distance measuring devices 300 are equal, each driving device 400 determines a driving direction according to a difference value of the detection values of the two distance measuring devices 300 on the connected movable plate 100. This can facilitate the driving device 400 to adjust the position of the movable plate 100, and save the adjustment time.
The control method of the biomagnetic detection device 1 according to the embodiment of the present invention is described in detail below.
As shown in fig. 4 and 6, four magnetic force detecting devices 200 and four distance measuring devices 300 are disposed on each movable plate 100, the movable plate 100 is rectangular, the four magnetic force detecting devices 200 on each movable plate 100 are respectively located at four corners of the movable plate 100, and the four distance measuring devices 300 on each movable plate 100 are respectively adjacent to the centers of four sides of the movable plate 100.
The detection values of the four distance measuring devices 300 on one movable plate 100 are respectively S1, S2, S3 and S4. S1 and S3 are aligned in the third direction and driven by the longitudinal drive joint 460, and S2 and S4 are aligned in the second direction and driven by the lateral drive joint 440.
After the tested organism 2 is in place, the driving device 400 drives the movable plate 100 to move to a preset position with an interval, which is about 10 mm away from the tested organism 2 due to the individual difference of the tested organism 2;
the distance measuring device 300 operates to output laser;
the distance measuring device 300 receives the laser and obtains distance detection values S1, S2, S3 and S4;
calculating S1-S3 in the third direction, wherein if 0 indicates that the distances from the distance measuring device 300 corresponding to S1 and S3 to the measured organism 2 are equal, the driving device 400 does not perform adjustment in the third direction; if the distance is greater than 0, it is stated that S1 is greater than S3, the distance between the distance measuring device 300 corresponding to S1 and the measured organism 2 is greater than the distance between the distance measuring device 300 corresponding to S3 and the measured organism 2, and the longitudinal driving joint 460 drives the movable plate 100 to swing in the direction of the distance measuring device 300 corresponding to S1; if the distance is smaller than 0, S1 is smaller than S3, the distance between the distance measuring device 300 corresponding to S1 and the measured organism 2 is smaller than the distance between the distance measuring device 300 corresponding to S3 and the measured organism 2, and the vertical driving joint 460 drives the movable plate 100 to swing in the direction of the distance measuring device 300 corresponding to S3;
calculating S2-S4 in a second direction, wherein if 0 indicates that the distances from the distance measuring device 300 corresponding to S2 and S4 to the measured organism 2 are equal, the driving device 400 does not adjust in the second direction; if the distance is greater than 0, S2 is greater than S4, the distance between the distance measuring device 300 corresponding to S2 and the measured organism 2 is greater than the distance between the distance measuring device 300 corresponding to S4 and the measured organism 2, and the lateral driving joint 440 drives the movable plate 100 to swing in the direction of the distance measuring device 300 corresponding to S2; if the distance is smaller than 0, it is determined that S2 is smaller than S4, the distance between the ranging device 300 corresponding to S2 and the measured organism 2 is smaller than the distance between the ranging device 300 corresponding to S4 and the measured organism 2, and the lateral driving joint 440 drives the movable plate 100 to swing in the direction of the ranging device 300 corresponding to S4;
the adjustment of the driving device 400 and the detection of the distance measuring device 300 are performed in real time in a loop until S1 is S2, S3 and S4;
obtaining a distance S between the distance measuring device 300 and the measured living body 2 at this time, where S is S1, S2, S3, and S4;
the linear motor 420 drives the vertical driving arm 410 to move a distance S in the first direction, so that the movable plate 100 is attached to the surface of the measured organism 2.
It can be understood by those skilled in the art that the number of the distance measuring devices 300 on each movable plate 100 can be adjusted according to actual requirements, and may be four as described in the present embodiment, or may be three or five or more. When the number of the distance measuring devices 300 is not four, the required moving direction of the movable plate 100 can still be determined by the difference between the detection values of two of the distance measuring devices 300.
Other configurations and operations of the biomagnetic detection device 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A biomagnetic detection device, comprising:
a plurality of movable plates;
the magnetic force detection devices are arranged on the movable plates, and the magnetic force detection devices on the movable plates are arranged at intervals;
the distance measuring device comprises a plurality of distance measuring devices, a plurality of distance measuring devices and a plurality of distance measuring devices, wherein the distance measuring devices are arranged on each movable plate at intervals, and each distance measuring device is used for detecting the distance between the distance measuring device and a detected organism;
the driving devices are respectively in transmission connection with the movable plates and are respectively electrically connected with the distance measuring devices on the movable plates, and the driving devices are suitable for driving the movable plates to enable the distance measuring devices to be attached to the tested organism;
the driving device is arranged on the base.
2. The biomagnetic detecting device according to claim 1, wherein each of the movable plates is provided with four magnetic force detecting devices and four distance measuring devices, the movable plates are rectangular, the four magnetic force detecting devices on each of the movable plates are respectively located at four corners of the movable plate, and the four distance measuring devices on each of the movable plates are respectively located at the centers of the four sides of the movable plate.
3. The biomagnetic detection device according to claim 1, wherein the driving device comprises:
the vertical driving arm is movably arranged on the base along a first direction;
the linear motor is in transmission connection with the vertical driving arm;
a transverse swing arm swingably connected to the vertical driving arm in a second direction;
the transverse driving joint is connected with the vertical driving arm through the transverse driving joint and drives the transverse swinging arm to swing in the second direction;
a longitudinal swing arm swingably connected with said transverse swing arm in a third direction, said first direction, said second direction and said third direction being orthogonal to each other;
the longitudinal swing arm is connected with the transverse swing arm through the longitudinal driving joint, and the longitudinal driving joint drives the longitudinal swing arm to swing in the third direction.
4. A biomagnetic detection device according to claim 1 wherein the distance measuring device is a laser distance measuring device and the magnetic force detection device is an atomic magnetometer.
5. The biomagnetic detection device according to claim 1, wherein the magnetic force detection device comprises:
a laser;
a collimating lens;
a half-wave plate;
an atomic gas chamber in which an alkali metal is encapsulated;
the non-magnetic heating device is used for heating the atomic gas chamber;
the temperature control device is electrically connected with the non-magnetic heating device and is used for detecting the temperature of the atomic gas chamber so as to adjust the temperature of the non-magnetic heating device;
and laser emitted by the laser sequentially passes through the collimating lens, the half-wave plate and the atomic gas chamber to reach the photoelectric detector.
6. The biomagnetic detection device of claim 5, wherein the magnetic force detection device further comprises a first mirror and a second mirror, the first mirror being located between the half-wave plate and the atomic gas cell on the optical path of the laser, the second mirror being located between the atomic gas cell and the photodetector on the optical path of the laser.
7. The biomagnetic detection device according to claim 1, further comprising a magnetic shield for shielding external magnetic interference.
8. The biomagnetic detection device of claim 1, further comprising a detection bed adapted to support the organism to be detected.
9. A control method of a biomagnetic detection device according to any one of claims 1 to 8, characterized by comprising the steps of:
a plurality of said ranging devices are operated;
the driving devices drive the movable plate according to the detection values of the distance measuring devices until the detection values of the distance measuring devices are equal;
the driving devices drive the movable plate to be attached to the tested organism according to the detection values of the distance measuring devices.
10. The control method of a biomagnetic detection device according to claim 9, wherein in the process that the plurality of driving devices drive the movable plate according to the detection values of the plurality of distance measuring devices until the detection values of the plurality of distance measuring devices are equal, each of the driving devices determines a driving direction according to a difference value of the detection values of the two distance measuring devices on the connected movable plate.
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