CN110974604A - Acceleration sensing system of exoskeleton device for lower limb rehabilitation training - Google Patents
Acceleration sensing system of exoskeleton device for lower limb rehabilitation training Download PDFInfo
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- 230000001133 acceleration Effects 0.000 title claims abstract description 40
- 210000003141 lower extremity Anatomy 0.000 title claims abstract description 19
- 238000012549 training Methods 0.000 title claims abstract description 18
- 239000013307 optical fiber Substances 0.000 claims abstract description 55
- 238000012545 processing Methods 0.000 claims abstract description 16
- 238000005070 sampling Methods 0.000 claims abstract description 16
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 5
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 abstract description 4
- 238000013500 data storage Methods 0.000 abstract description 2
- 230000007659 motor function Effects 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 abstract 2
- 230000006872 improvement Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 208000012661 Dyskinesia Diseases 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
- A61H1/0237—Stretching or bending or torsioning apparatus for exercising for the lower limbs
- A61H1/0255—Both knee and hip of a patient, e.g. in supine or sitting position, the feet being moved together in a plane substantially parallel to the body-symmetrical plane
- A61H1/0262—Walking movement; Appliances for aiding disabled persons to walk
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
- A61H1/0237—Stretching or bending or torsioning apparatus for exercising for the lower limbs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/16—Physical interface with patient
- A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
- A61H2201/164—Feet or leg, e.g. pedal
- A61H2201/1642—Holding means therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/16—Physical interface with patient
- A61H2201/1657—Movement of interface, i.e. force application means
- A61H2201/1659—Free spatial automatic movement of interface within a working area, e.g. Robot
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/50—Control means thereof
- A61H2201/5058—Sensors or detectors
- A61H2201/5084—Acceleration sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2205/00—Devices for specific parts of the body
- A61H2205/10—Leg
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Rehabilitation Tools (AREA)
Abstract
本发明公开了一种用于下肢康复训练的外骨骼装置的加速度传感系统，包括数据采集模块、A/D采样处理模块、主控制模块，数据采集模块采用光纤加速度传感器，光纤加速度传感器是对称性结构，光纤加速度传感器包括有矩形质量块、弹簧、接受光纤、发射光纤，A/D采样处理模块是集成于主控制模块内，通过焊接连接固定，A/D采样处理模块包括放大运算器、低通滤波电路、缓冲器、模数转换器，主控制模块包括TMS320F2812主控制器、工控机、液晶显示屏。本发明的加速度传感系统不仅可以显示时时数据，还可实现数据的存储、回放等功能，工控机能够根据加速度传感系统所收集到数据，引导患者的肢体做各种指定的重复性康复训练，辅助患者下肢恢复其运动机能。
The invention discloses an acceleration sensing system of an exoskeleton device for lower limb rehabilitation training, comprising a data acquisition module, an A/D sampling processing module and a main control module. The data acquisition module adopts an optical fiber acceleration sensor, and the optical fiber acceleration sensor is symmetrical The optical fiber accelerometer includes a rectangular mass block, a spring, a receiving fiber, and a transmitting fiber. The A/D sampling processing module is integrated in the main control module and fixed by welding. The A/D sampling processing module includes an amplifier, a Low-pass filter circuit, buffer, analog-to-digital converter, and the main control module includes TMS320F2812 main controller, industrial computer, and liquid crystal display. The acceleration sensing system of the present invention can not only display the real-time data, but also realize functions such as data storage and playback. , to assist the patient's lower limbs to restore their motor function.
Description
Technical Field
The invention relates to the field of sensing measurement equipment, in particular to an acceleration sensing system of an exoskeleton device for lower limb rehabilitation training.
Background
With the improvement of living standard of substances, the requirements of people on medical conditions are higher, the average life of human beings is higher and higher, the aging of society and various safety accidents are increased, the number of patients with lower limb dyskinesia and old people is more and more, at present, the research of domestic rehabilitation robot technology is still in the laboratory research stage, a long way is needed to be carried out away from commercial popularization, and in addition, the aspects of complexity, flexibility, stability of rehabilitation training, accuracy of detection control and the like of the rehabilitation robot have certain differences compared with foreign countries.
Disclosure of Invention
The invention aims to solve the technical problem of providing an acceleration sensing system of an exoskeleton device for lower limb rehabilitation training.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: an acceleration sensing system of an exoskeleton device for lower limb rehabilitation training comprises a data acquisition module, an analog/digital (A/D) sampling processing module and a main control module, wherein the data acquisition module adopts an optical fiber acceleration sensor which is of a symmetrical structure, the optical fiber acceleration sensor comprises a rectangular mass block, a spring, an accepting optical fiber and a transmitting optical fiber, the rectangular mass block is arranged on one side of a connecting rod joint of the exoskeleton device, the spring is arranged in a plurality of parts and distributed on two sides of the rectangular mass block symmetrically about the central axis of the rectangular mass block, the accepting optical fiber is arranged in the rectangular mass block, the accepting optical fiber is integrally formed and embedded in the rectangular mass block, the tail end of the accepting optical fiber is provided with a package, and the package part is fixedly connected with the rectangular mass block in an adhesion manner, the transmitting optical fiber is arranged at one end of the rectangular mass block, the central axis of the transmitting optical fiber and the central axis of the rectangular mass block are distributed in a superposition way, the tail end of the transmitting optical fiber is provided with a prestressed packaging end, the A/D sampling processing module is integrated in the main control module, fixed by welding, the A/D sampling processing module comprises an amplifying arithmetic unit, a low-pass filter circuit, a buffer and an analog-to-digital converter, the optical fiber acceleration sensor is connected with the main control module in series through the amplifying arithmetic unit, the low-pass filter circuit, the buffer and the analog-to-digital converter, the main control module comprises a TMS320F2812 main controller, an industrial personal computer and a liquid crystal display screen, one end of the TMS320F2812 main controller is electrically connected with the analog-to-digital converter, the other end of the TMS320F2812 main controller is electrically connected with a communication serial port of the industrial personal computer, and the liquid crystal display screen is electrically connected with the TMS320F2812 main controller.
Compared with the prior art, the invention has the advantages that: the acceleration sensing system can display real-time data, and can also realize functions of data storage, data playback and the like, the industrial personal computer can guide the limbs of the patient to do various specified repetitive rehabilitation training according to the data collected by the acceleration sensing system, assist the lower limbs of the patient to recover the motor function of the patient, and can customize different rehabilitation schemes according to the self conditions of different patients, so that the requirements of the rehabilitation training integrity and the comfort of the lower limb patients are met.
As an improvement, the optical fiber acceleration sensor is a symmetrical structure, and is arranged at the tail end of each connecting rod joint of the exoskeleton device.
As an improvement, pretightening force packages are arranged at two ends of the optical fiber acceleration sensor, and the problem of regional natural vibration of the receiving optical fiber and the transmitting optical fiber is solved.
As an improvement, the springs are distributed on two sides of the rectangular mass block, and the springs are arranged between the rectangular mass block and the fixing plate of the exoskeleton device.
As an improvement, a buffer in the A/D sampling processing module is provided with a correction circuit, one end of the buffer is provided with an absolute value encoder, an electric connection is arranged between the absolute value encoder and the buffer, the absolute value encoder and the buffer are fixed through welding, the absolute value encoder has a power-down storage function, and the problem that data are lost due to electromagnetic interference during working of the buffer can be solved.
As an improvement, an electric connection is arranged between the industrial personal computer and a servo motor driven by the exoskeleton device, and an angle sensing feedback system is formed between the data acquisition module and the servo motor driven by the industrial personal computer and the exoskeleton device.
Drawings
Fig. 1 is a schematic structural diagram of an optical fiber acceleration sensor of an acceleration sensing system of an exoskeleton device for lower limb rehabilitation training.
Fig. 2 is a schematic flow diagram of an acceleration sensing system for an exoskeleton device for lower limb rehabilitation training.
As shown in the figure: 1. rectangular mass block, 2, spring, 3, receiving optical fiber, 4, emitting optical fiber.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The invention relates to an acceleration sensing system of an exoskeleton device for lower limb rehabilitation training, which comprises a data acquisition module, an A/D sampling processing module and a main control module, wherein the data acquisition module adopts an optical fiber acceleration sensor, the optical fiber acceleration sensor is of a symmetrical structure and comprises a rectangular mass block 1, a spring 2, a plurality of receiving optical fibers 3 and transmitting optical fibers 4, the rectangular mass block 1 is arranged at one side of a connecting rod joint of the exoskeleton device, the springs 2 are distributed on two sides of the rectangular mass block 1, the springs 2 are symmetrically distributed about the central axis of the rectangular mass block 1, the receiving optical fibers 3 are arranged in the rectangular mass block 1, the receiving optical fibers 3 are embedded in the rectangular mass block 1 by adopting an integrally-formed manufacturing design, and the tail ends of the receiving optical fibers 3 are provided with packages, the packaging part is fixedly connected with the rectangular mass block 1 in an adhesion manner, the transmitting optical fiber 4 is arranged at one end of the rectangular mass block 1, the central axis of the transmitting optical fiber 4 is coincided with the central axis of the rectangular mass block 1, the tail end of the transmitting optical fiber 4 is provided with a prestressed packaging end, the A/D sampling processing module is integrated in the main control module and is fixedly connected through welding, the A/D sampling processing module comprises an amplifying arithmetic unit, a low-pass filter circuit, a buffer and an analog-to-digital converter, the optical fiber acceleration sensor is connected with the main control module through the amplifying arithmetic unit, the low-pass filter circuit, the buffer and the analog-to-digital converter in series, the main control module comprises a TMS320F2812, a main control computer and a liquid crystal display screen, one end of the TMS320F2812 is electrically connected with the analog-to-digital converter, and the liquid crystal display screen is electrically connected with the TMS320F2812 main controller.
The optical fiber acceleration sensor is of a symmetrical structure, and is arranged at the tail end of each connecting rod joint of the exoskeleton device.
The two ends of the optical fiber acceleration sensor are provided with pretightening force packages, and the problem of regional natural vibration of the receiving optical fiber 3 and the transmitting optical fiber 4 is solved.
The springs 2 are distributed on two sides of the rectangular mass block 1, and the springs 2 are arranged between the rectangular mass block 1 and a fixing plate of the exoskeleton device.
The buffer in the AD sampling processing module be equipped with correction circuit, and the one end of buffer is equipped with the absolute value encoder, be equipped with the electricity between absolute value encoder and the buffer and be connected, absolute value encoder and buffer pass through welded fastening, the absolute value encoder has the function of cutting down the storage, can solve the buffer and receive electromagnetic interference in the work, cause the problem of data loss.
The industrial personal computer is electrically connected with the servo motor driven by the exoskeleton device, and an angle sensing feedback system is formed between the data acquisition module and the servo motor driven by the industrial personal computer and the exoskeleton device.
The working principle of the invention is as follows: the acceleration sensing system is based on the optical fiber acceleration sensor as the front end, and two ends of the optical fiber acceleration sensor are packaged by pretightening force, so that the regional self-vibration of optical fibers is solved, the measurement precision and accuracy are improved, electric signals collected by the optical fiber acceleration sensor are input into a port of an analog-to-digital converter for sampling after being conditioned by an amplifying arithmetic unit, a low-pass filter circuit and a buffer, then digital signal processing and real-time resolving are carried out, results are output to a liquid crystal display screen, the measurement results are directly displayed and sent to an industrial personal computer through serial port communication, and the industrial personal computer records and analyzes the results.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the invention, "plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
In the description herein, reference to the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means 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.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (6)
1. An acceleration sensing system of an exoskeleton device for lower limb rehabilitation training comprises a data acquisition module, an analog/digital (A/D) sampling processing module and a main control module, wherein the data acquisition module adopts an optical fiber acceleration sensor which is of a symmetrical structure, the optical fiber acceleration sensor comprises a rectangular mass block 1, springs 2, receiving optical fibers 3 and transmitting optical fibers 4, the rectangular mass block 1 is arranged on one side of a connecting rod joint of the exoskeleton device, the springs 2 are arranged in a plurality, the springs 2 are distributed on two sides of the rectangular mass block 1 and symmetrically distributed about the central axis of the rectangular mass block 1, the receiving optical fibers 3 are arranged in the rectangular mass block 1, the receiving optical fibers 3 are integrally formed and embedded in the rectangular mass block 1, the tail end of the receiving optical fibers 3 is provided with a package, and the package part is fixedly connected with the rectangular mass block 1 in an adhesion manner, the emission optical fiber 4 is arranged at one end of the rectangular mass block 1, the central axis of the emission optical fiber 4 is coincided with the central axis of the rectangular mass block 1, the tail end of the emission optical fiber 4 is provided with a prestressed packaging end, the A/D sampling processing module is integrated in the main control module, fixed by welding, the A/D sampling processing module comprises an amplifying arithmetic unit, a low-pass filter circuit, a buffer and an analog-to-digital converter, the optical fiber acceleration sensor is connected with the main control module in series through the amplifying arithmetic unit, the low-pass filter circuit, the buffer and the analog-to-digital converter, the main control module comprises a TMS320F2812 main controller, an industrial personal computer and a liquid crystal display screen, one end of the TMS320F2812 main controller is electrically connected with the analog-to-digital converter, the other end of the TMS320F2812 main controller is electrically connected with a communication serial port of the industrial personal computer, and the liquid crystal display screen is electrically connected with the TMS320F2812 main controller.
2. The acceleration sensing system for an exoskeleton device used in lower limb rehabilitation training of claim 1, wherein: the optical fiber acceleration sensor is of a symmetrical structure, and is arranged at the tail end of each connecting rod joint of the exoskeleton device.
3. The acceleration sensing system for an exoskeleton device used in lower limb rehabilitation training of claim 1, wherein: the two ends of the optical fiber acceleration sensor are provided with pretightening force packages, and the problem of regional natural vibration of the receiving optical fiber 3 and the transmitting optical fiber 4 is solved.
4. The acceleration sensing system for an exoskeleton device used in lower limb rehabilitation training of claim 1, wherein: the springs 2 are distributed on two sides of the rectangular mass block 1, and the springs 2 are arranged between the rectangular mass block 1 and a fixing plate of the exoskeleton device.
5. The acceleration sensing system for an exoskeleton device used in lower limb rehabilitation training of claim 1, wherein: the buffer in the AD sampling processing module be equipped with correction circuit, and the one end of buffer is equipped with the absolute value encoder, be equipped with the electricity between absolute value encoder and the buffer and be connected, absolute value encoder and buffer pass through welded fastening, the absolute value encoder has the function of cutting down the storage, can solve the buffer and receive electromagnetic interference in the work, cause the problem of data loss.
6. The acceleration sensing system for an exoskeleton device used in lower limb rehabilitation training of claim 1, wherein: the industrial personal computer is electrically connected with the servo motor driven by the exoskeleton device, and an angle sensing feedback system is formed between the data acquisition module and the servo motor driven by the industrial personal computer and the exoskeleton device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911240723.8A CN110974604A (en) | 2019-12-06 | 2019-12-06 | Acceleration sensing system of exoskeleton device for lower limb rehabilitation training |
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| CN201911240723.8A CN110974604A (en) | 2019-12-06 | 2019-12-06 | Acceleration sensing system of exoskeleton device for lower limb rehabilitation training |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11671692B2 (en) | 2020-02-26 | 2023-06-06 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display device including LED chips around camera lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5317929A (en) * | 1991-02-07 | 1994-06-07 | Brown David A | Fiber optic flexural disk accelerometer |
| CN101769938B (en) * | 2010-01-21 | 2011-08-03 | 中国科学院力学研究所 | Czochralski Accelerometer Based on Fiber Bragg Grating |
| CN202330457U (en) * | 2011-11-09 | 2012-07-11 | 金陵科技学院 | Temperature compensation type optical fiber grating accelerator probe |
| CN204347061U (en) * | 2015-01-20 | 2015-05-20 | 中国人民解放军国防科学技术大学 | A kind of miniature fiber grating accelerometer |
| CN105842478A (en) * | 2016-06-03 | 2016-08-10 | 中国航空工业集团公司北京长城计量测试技术研究所 | High temperature-resistant integrated elastically-structured optical fiber P-F cavity acceleration sensor |
| CN105841796A (en) * | 2016-04-19 | 2016-08-10 | 西安石油大学 | Optical fiber grating three-dimensional vector vibration sensor |
| CN107361992A (en) * | 2016-05-13 | 2017-11-21 | 深圳市肯綮科技有限公司 | A kind of human body lower limbs move power assisting device |
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| CN111505337A (en) * | 2020-04-30 | 2020-08-07 | 中山市精量光电子科技有限公司 | A Temperature-Insensitive Elliptical Hinge Fiber Bragg Grating Accelerometer |
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2019
- 2019-12-06 CN CN201911240723.8A patent/CN110974604A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5317929A (en) * | 1991-02-07 | 1994-06-07 | Brown David A | Fiber optic flexural disk accelerometer |
| CN101769938B (en) * | 2010-01-21 | 2011-08-03 | 中国科学院力学研究所 | Czochralski Accelerometer Based on Fiber Bragg Grating |
| CN202330457U (en) * | 2011-11-09 | 2012-07-11 | 金陵科技学院 | Temperature compensation type optical fiber grating accelerator probe |
| CN204347061U (en) * | 2015-01-20 | 2015-05-20 | 中国人民解放军国防科学技术大学 | A kind of miniature fiber grating accelerometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11671692B2 (en) | 2020-02-26 | 2023-06-06 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display device including LED chips around camera lens |
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Application publication date: 20200410 |