CN106264543A - The test instrunment of force characteristic is stirred for obtaining finger - Google Patents
The test instrunment of force characteristic is stirred for obtaining finger Download PDFInfo
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- CN106264543A CN106264543A CN201510283595.0A CN201510283595A CN106264543A CN 106264543 A CN106264543 A CN 106264543A CN 201510283595 A CN201510283595 A CN 201510283595A CN 106264543 A CN106264543 A CN 106264543A
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Abstract
The invention discloses a kind of test instrunment stirring force characteristic for obtaining finger, including: stir power operation simulation assembly, described in stir power operation simulation assembly and include that base and trigger, described trigger are rotatably arranged on described base；Stir power test suite, described in stir power test suite and include force transducer, described force transducer is connected with described trigger by connecting rod；Intelligent display and analysis meter, described intelligent display and analysis meter are for reading in the measurement data of described force transducer and carrying out processing and showing result.According to embodiments of the present invention stir the test instrunment of force characteristic for obtaining finger, the power of stirring of finger can be measured in real time and test result can be shown intuitively, improving finger and dial the accuracy of dynamic test, simultaneously, this test instrunment small volume, it is simple to the carrying and using of testee.
Description
Technical field
The present invention relates to stir power technical field of measurement and test, particularly relate to a kind of test instrunment stirring force characteristic for obtaining finger.
Background technology
Ergonomics is about understanding interactive subject between people and other key element of system, is also utility theory, principle, data
Being designed with method, so that the health of people and system whole efficiency reach optimum a special kind of skill, its core is safety, is good for
Health, efficiently.In man-machine system is mutual, finger is the organ that people is most-often used.By finger contact in interaction face,
Extruding, touch, operator can perceive the physical characteristics such as the hardness of target surface, viscosity, texture, roughness and hardness.
Particularly, along with the development of computer technology, hands or finger are more obvious to the effect of modern man-machine interaction, its relevant spy
Property data have become the important indicator of man machine system design.Therefore, in ergonomics field, scientific research personnel is for hands or finger
Form, structure, force, function and the research with operational performance relation thereof are extremely paid attention to, and in the speed of finger movement, standard
Really property and strength, form and the dependency of testing finger flexibility, finger workload and the key button layout of man-machine system, the hands of hands
The aspects such as the somatometry referred to and biomechanics characteristic have carried out numerous studies work, have obtained having most important theories meaning and reality
The result of study of border using value.
Finger stir the size of power main with sex, age, nationality region etc. factor relevant, establish the most in this respect
Relevant data base.Chemical defence graduate fourth soughing of the wind in the pines researcher team in 2012, completes whole nation characteristic area more than 10,000 name
The measurement work of the finger strength of Young Patients, and set up finger strength data base.But for special man machine system design,
Can't indiscriminately imitate the data in data base completely, it needs to measure according to the operation operating mode of finger to draw, i.e. relates to
The finger strength sampling of certain sample.So, accurate finger strength measuring method becomes the emphasis that ergonomics research worker is paid close attention to.
Currently, during the force data to finger has been supplied in the design of button, toggle, button.Such as, at GJB6765-2009
" ergonomics of spacecraft design is required and evaluation methodology by astronaut system " defines executing of spacefarer's naked hands operation button/button
Power requires: forefinger 2-10N, thumb 8-30N.In measuring method, mainly executed at force transducer by the finger of testee
The mode defeating power measures.John Z.W. in 2012 et al. is at " Medical Engineering&Physics "
Entitled " Inverse dynamic analysis of the biomechanics of the has been delivered on 6th phase magazine of magazine
Thumb while pipetting:A case study " article, the most also utilize diaphragm pressure sensor to finger
Respectively refer to that the joint force when carrying out grasp motion measures.Generally, above-mentioned measurement apparatus by force transducer, computer and
Data wire forms, and directly reads the numeral of display on computer display and may know that the operating physical force that testee is applied during measurement.
Although this method is simple to operate, but there are some shortcomings being difficult to overcome.Firstly, since sensor and the contact surface of finger
Being square face, it does not has stroke, inconsistent with contact point during actual group of power operation to the impression of testee force；
Secondly as the configuration of sensor to be difficult to be processed into profile when stirring with finger consistent, therefore, the strength measured also is
One analog quantity；3rd, owing to must attach computer, therefore volume is relatively big, does not has instant playback, and use condition has one
Fixed restriction, and be unfavorable for being convenient for carrying and using.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention proposes one
Kind stirs the test instrunment of force characteristic for obtaining finger, and the described test instrunment stirring force characteristic for obtaining finger can be effective
Measure the power of stirring of finger, and small volume, it is simple to user using and carrying.
According to embodiments of the present invention stir the test instrunment of force characteristic for obtaining finger, including: stir power operation simulation group
Part, described in stir power operation simulation assembly and include that base and trigger, described trigger are rotatably arranged on described base；Stir
Power test suite, described in stir power test suite and include force transducer, described force transducer is connected with described trigger by connecting rod；
Intelligent display and analysis meter, described intelligent display and analysis meter are for reading in the measurement data of described force transducer and carrying out
Process and display result.
According to embodiments of the present invention stir the test instrunment of force characteristic for obtaining finger, testee is grasped by stirring power
Making the trigger of simulated assembly, trigger is connected with force transducer by connecting rod, and power is transferred to force transducer, force transducer opponent
Refer to stir power carried out sampling, analyze and calculating by force signal.And the measurement data that finger is stirred power is transferred to intelligent display
With analysis meter, measurement data is analyzed and processes and result shown by intelligent display and analysis meter.Thus can
The power of stirring measuring in real time finger also can show test result intuitively, improves finger and dials the accuracy of dynamic test, meanwhile,
This test instrunment small volume, it is simple to the carrying and using of testee.
According to some embodiments of the present invention, described intelligent display and analysis meter include that single-chip microcomputer, liquid crystal display screen, instrument are assembled
Box and data process&analysis software, described instrument assembling box is located on described base, and described instrument assembling box is provided with power supply
Jack and on and off switch, described single-chip microcomputer is located in described instrument assembling box, described single-chip microcomputer and described data process&analysis
Software is connected, and described data process&analysis software is connected for reading in and process described force transducer with described force transducer
Measurement data, described liquid crystal display screen display result.
Alternatively, described intelligent display and analysis meter also include the state display lamp being located on described instrument assembling box, described
It is bright that state display lamp is configured to the lamp when described intelligent display works with analysis meter, and at described intelligent display and analyser
When table is closed, lamp goes out.
According to some embodiments of the present invention, the grip portion of described base is provided with Non-slip material.
According to some embodiments of the present invention, described instrument assembling box is provided with usb data interface.
Alternatively, described supply hub, described on and off switch and described usb data interface are positioned at the same of described instrument assembling box
On one sidewall.
Accompanying drawing explanation
Fig. 1 be according to embodiments of the present invention for obtaining the front view that finger stirs the test instrunment of force characteristic；
Fig. 2 be according to embodiments of the present invention for obtaining the left view that finger stirs the test instrunment of force characteristic.
Reference:
100: stir the test instrunment of force characteristic for obtaining finger；
1: stir power operation simulation assembly, 11: base, 111: grip portion, 12: trigger；
2: intelligent display and analysis meter, 21: instrument assembling box, 211: supply hub, 212: on and off switch, 213:
State display lamp, 214:USB data-interface, 22: liquid crystal display screen.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings.Below with reference to accompanying drawing
The embodiment described is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " length ", " width ", " thickness ", " on ", D score,
The orientation of the instruction such as "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " or position
Relation of putting for based on orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplifying describe rather than
Instruction or hint indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not
It is interpreted as limitation of the present invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed
Or implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two
Individual, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing "
Should be interpreted broadly Deng term, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be
Be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be to be joined directly together, it is also possible to by the indirect phase of intermediary
Even, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For
For those of ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Below with reference to Fig. 1-Fig. 2 describe according to embodiments of the present invention stir the test instrunment 100 of force characteristic for obtaining finger.
The test instrunment 100 stirring force characteristic for obtaining finger according to embodiments of the present invention can include dialling power operation mould
Intend assembly 1, stir power test suite (not shown) and intelligent display and analysis meter 2.Being used for of the embodiment of the present invention is obtained
Take finger to stir the test instrunment 100 of force characteristic and be applicable to the Chinese normal health man of the 5th to the 99th percentile, female's testee
Finger when standing position or sitting posture dials dynamic test.
Stirring power operation simulation assembly 1 and include base 11 and trigger 12, trigger 12 is rotatably arranged on base 11, specifically
Ground, when carrying out finger and dialling dynamic test, testee can stir trigger 12 within the time of regulation continuously, executes trigger 12
Reinforcing, stirs the measurement of power carrying out finger.Thus, testee is when applying finger continuously and stirring power, it is ensured that tested
The finger force operating mode of person is basically identical, thus can improve finger and dial the accuracy of dynamometry.
The power test suite of stirring includes force transducer, and force transducer is connected with trigger 12 by connecting rod, and testee is stirring trigger
When 12, the power of stirring of finger is transferred to force transducer by connecting rod, and finger is stirred being adopted by force signal of power by force transducer
Sample, analyze and calculate.
Intelligent display and analysis meter 2 are for reading in the measurement data of force transducer and carrying out processing and showing result.Intelligence
Can display be connected with force transducer with analysis meter 2, the finger of measurement can be stirred the data feedback of power to intelligence by force transducer
Display and analysis meter 2, the data that force transducer is fed back by intelligent display with analysis meter 2 process and analyze, and can
Analysis result is shown, consequently facilitating testee more intuitively arrives finger stirs the measurement result of power.
According to embodiments of the present invention stir the test instrunment 100 of force characteristic for obtaining finger, testee is by stirring power
The trigger 12 of operation simulation assembly 1, trigger 12 is connected with force transducer by connecting rod, power is transferred to force transducer, power
Finger is stirred being sampled by force signal, analyze and calculating of power by sensor.And finger is stirred the measurement data transmission of power
To intelligent display and analysis meter 2, measurement data is analyzed and processes and result shown by intelligent display and analysis meter 2
Illustrate.Thus the power of stirring of finger can be measured in real time and test result can be shown intuitively, improve finger and dial dynamic test
Accuracy, meanwhile, this is used for obtaining finger and stirs the test instrunment small volume of force characteristic, it is simple to the carrying and making of testee
With.
Can be formed with base 11 by pulling to hit as it is shown in figure 1, stir power operation simulation assembly 1, base 11 can include handle
Portion 111, as it is shown in figure 1, pull the configuration hit pull to general pistol hit similar, by connecting rod with stir in power test suite
Force transducer be connected.The configuration of grip portion 111 and general pistol to hold pikestaff similar, during to guarantee that testee is tested
Part convenient to grasp.Alternatively, the grip portion 111 of base 11 is provided with Non-slip material, and thus, experimenter, when testing, can keep away
Exempt from the test that experimenter causes owing to hands is sliding inaccurate, thus finger can be improved further and dial the accuracy of dynamic test.
Stir size and the range of power test suite for stirring power operation simulation assembly 1 for, the present invention dials dynamic test
The range of assembly, stir the grip portion 111 of handle in power operation simulation assembly 1 hold the parameters such as footpath and configuration all with reference to national
Standard " Chinese adult body dimension " (GB10000-1988), " equipment and facility Ergonomics design criterion " (GJB
2873-1997) it is designed, it is contemplated that testee finger stirs the force feature of power, it is possible to meet the 5th to the 9900th
Dividing position force test request, the scope of application is good.
In some specific embodiments of the present invention, the overall dimensions stirring power operation simulation assembly 1 is length × width × height
=150mm × 100mm × 30mm, the monnolithic case of grip portion 111 a size of length × width × height=50mm × 35mm × 25mm.Intelligence
Can show with analysis meter installation 2 in the space of a length × width × height=70mm × 50mm × 25mm of this simulated assembly,
Intelligent display and analysis meter installing port are provided with 4 fixing holes, by four fixing holes by intelligent display and analysis meter 2
Fix on the pedestal 11.
Specifically, stir power test suite and can include force transducer and data wire.When the finger power of stirring is measured,
Hit by stirring pulling on power operation simulation assembly 1 the finger power of stirring of testee is transferred to force transducer, force transducer pair
Stress signal sampling, analyze, calculate after, be transferred to the data-interface of intelligent display and analysis meter 2 by data wire.?
In one specific embodiment of the present invention, stir the monnolithic case a size of length × width × height=10mm × 50mm of power test suite
× 2mm, wherein, the range of force transducer is 150N, and precision is 0.02N, safety coefficient is 2.
In some embodiments of the invention, intelligent display and analysis meter 2 include that single-chip microcomputer, liquid crystal display screen 22, instrument are assembled
Box 21 and data process&analysis software, instrument assembling box 21 sets on the pedestal 11, and instrument assembling box 21 is provided with power supply
Jack 211 and on and off switch 212, as in figure 2 it is shown, outlet and on and off switch 212 can be located at instrument assembling box 21
Side on, intelligent display and analysis meter 2 can insert supply hub 211 by power line, by supply hub 211 and electricity
Source is connected.Single-chip microcomputer be located at instrument assembling box 21 in, single-chip microcomputer is connected with data process&analysis software, data process and
Analyzing software to be connected with force transducer the measurement data for reading in and process force transducer, wherein, data process&analysis is soft
Part can record the information such as the height of testee, age, in order to is analyzed data, also allows for testee meanwhile
The lookup of information.Result can be shown by liquid crystal display screen 22.So, when testing, first open intelligent display with
The on and off switch 212 of analysis meter 2, starts single-chip microcomputer, enters system interface；Click data processes and analyzes software, enters
Entering test page, after the information such as the prompting record height of testee, age, hit testing starts.
In particular embodiments of the invention, instrument assembling box 21 is substantially in cuboid, and instrument assembles the profile chi of box 21
Very little is length × width × height=70mm × 50mm × 25mm, instrument assembling box 21 on can be provided with four for stir power behaviour
Making the fixing fixing hole of simulated assembly 1, wherein, two fixing hole pitch-rows in the direction of the width are 50mm, instrument assembling box
21 and stir and can be fixed by screw between power operation simulation assembly 1.On the side of instrument assembling box 21, can be provided with
One 12V direct current jack 211 and an on and off switch 212.Single-chip microcomputer can be selected for industrial general high-speed microprocessor,
Memory size is 1GB DDR, and CPU is INTEL 1.5GHz processor；Hard disk uses laptop hard, and capacity is 100GB；
Operating system is WINDOWS XP；Liquid crystal display screen 22 can be LED liquid crystal display screen 22, and further, LED liquid crystal display screen 22 is 3.5 "
Display, puts away from for 0.35mm × 0.35mm, and band touch screen, experimenter can by point touching screen operation data process with
Analyzing software, touch screen can be eight resistive touch screens, number of taps 2,500,000 times, 250 gram force degree；Data process and divide
Analysis software is to develop on Visual C Plus Plus platform, and data process&analysis software can include three major functions, one
It is to read in finger from test data collection mouth to stir the test data of power；Two be can carry out maximum, minima, instant value,
Average, variance, the descriptive statistical analysis such as arbitrary percentile calculating between the 1st to the 99th；Three is the data of display test in real time
Change curve.
Preferably, intelligent display and analysis meter 2 can also include the state display lamp 213 being located on instrument assembling box 21,
It is bright that state display lamp 213 can be configured to the lamp when intelligent display works with analysis meter 2, and in intelligent display and analysis
When instrument 2 is closed, lamp goes out, and alternatively, state display lamp can be a LED；As it is shown in figure 1, state display lamp 213 can
Have on the side of liquid crystal display screen 22 to be located on instrument assembling box 21, consequently facilitating the observation of testee and use.
As optional embodiment, instrument assembling box 21 is additionally provided with usb data interface 214.As in figure 2 it is shown, USB
Data-interface 214 is located on the sidewall of instrument assembling box 21.Further, as in figure 2 it is shown, supply hub 211, power supply
Switch 212 and usb data interface 214 can be located on the same sidewall of instrument assembling box 21.Supply hub 211, power supply are opened
Pass 212 and usb data interface 214 are positioned on left side or the right side of the liquid crystal display screen 22 on instrument assembling box 21, thus just
In testee to supply hub 211, on and off switch 212 and the use of usb data interface 214.It is understood that USB
Data-interface 214 may be alternatively provided at from supply hub 211 and on and off switch 212 on the different sidewall of instrument assembling box 21.
For the use material for obtaining the test instrunment 100 that finger stirs force characteristic, alternatively, instrument assembling box
21 can be selected for aluminum alloy materials, stir power operation simulation assembly 1 and can be selected for high-quality timber and make, so, and the embodiment of the present invention
Be not more than 1Kg for the oeverall quality obtaining the test instrunment 100 that finger stirs force characteristic, be placed in small-sized instrument box
In, it is easy to carry.
Describe below according to Fig. 1-Fig. 2 and stir the test instrunment of force characteristic according to the specific embodiment of the invention for obtaining finger
The use of 100.
When testing, the measuring instrument that finger is first stirred power fixes, and allow testee by test request keep sitting posture or
Stance, opens the on and off switch 212 of intelligent display and analysis meter 2 side, starts single-chip microcomputer, enters Windows
System interface；Click data processes and analyzes software, enters test page, according to prompting, records the height of testee, year
After the information such as age, hit testing starts.Testee is held the handle stirring power operation simulation assembly 1 by the requirement of test regulation
Portion 111, stirs trigger 12 within the time of regulation and applies finger continuously and stir power, and click data processes and analyzes software
Test data are saved in pre-set file, in order to search by the end testing button of the page.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can
Being that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, the
One feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or
Oblique upper, or it is merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ",
" lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or it is special to be merely representative of first
Levy level height less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or
Feature is contained at least one embodiment or the example of the present invention.In this manual, the schematic representation to above-mentioned term
Necessarily it is directed to identical embodiment or example.And, the specific features of description, structure, material or feature are permissible
One or more embodiment in office or example combine in an appropriate manner.Additionally, in the case of the most conflicting, ability
The feature of the different embodiments described in this specification or example and different embodiment or example can be entered by the technical staff in territory
Row combines and combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is exemplary,
Being not considered as limiting the invention, those of ordinary skill in the art within the scope of the invention can be to above-described embodiment
It is changed, revises, replaces and modification.
Claims (6)
1. stir the test instrunment of force characteristic for obtaining finger for one kind, it is characterised in that including:
Stir power operation simulation assembly, described in stir power operation simulation assembly and include base and trigger, described trigger is rotationally
It is located on described base；
Stir power test suite, described in stir power test suite and include force transducer, described force transducer by connecting rod with described
Trigger is connected；
Intelligent display and analysis meter, described intelligent display and analysis meter are for reading in the measurement data of described force transducer also
Carry out processing and showing result.
The test instrunment stirring force characteristic for obtaining finger the most according to claim 1, it is characterised in that described intelligence
Display can include single-chip microcomputer, liquid crystal display screen, instrument assembling box and data process&analysis software with analysis meter, described instrument fills
Joining box to be located on described base, described instrument assembling box is provided with supply hub and on and off switch, and described single-chip microcomputer is located at described
Instrument assembling box in, described single-chip microcomputer is connected with described data process&analysis software, described data process&analysis software and
Described force transducer is connected the measurement data for reading in and process described force transducer, described liquid crystal display screen display result.
The test instrunment stirring force characteristic for obtaining finger the most according to claim 2, it is characterised in that described intelligence
Display can also include that being located at described instrument assembles the state display lamp on box with analysis meter, described state display lamp is configured to
When described intelligent display works with analysis meter, lamp is bright, and lamp goes out when described intelligent display is closed with analysis meter.
The test instrunment stirring force characteristic for obtaining finger the most according to claim 1, it is characterised in that the described end
The grip portion of seat is provided with Non-slip material.
The test instrunment dialling dynamic characteristic for obtaining finger the most according to claim 1, it is characterised in that described instrument
Table assembling box is provided with usb data interface.
The test instrunment dialling dynamic characteristic for obtaining finger the most according to claim 5, it is characterised in that described electricity
Source jack, described on and off switch and described usb data interface are positioned on the same sidewall of described instrument assembling box.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510283595.0A CN106264543A (en) | 2015-05-28 | 2015-05-28 | The test instrunment of force characteristic is stirred for obtaining finger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510283595.0A CN106264543A (en) | 2015-05-28 | 2015-05-28 | The test instrunment of force characteristic is stirred for obtaining finger |
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| CN201510283595.0A Pending CN106264543A (en) | 2015-05-28 | 2015-05-28 | The test instrunment of force characteristic is stirred for obtaining finger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220265188A1 (en) * | 2021-02-22 | 2022-08-25 | U.S. Army Combat Capabilities Development Command, Army Research Labortory | Dynamic gripping system for anthropometric acquisition and fitment for weapons and hand tools |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7096731B1 (en) * | 2005-11-29 | 2006-08-29 | Mike Chien Ming Lee | Finger gripping force measuring device |
| CN102319081A (en) * | 2011-08-24 | 2012-01-18 | 北京航空航天大学 | Human body limb force exerting tester |
| CN202355418U (en) * | 2011-11-15 | 2012-08-01 | 北京航天易联科技发展有限公司 | Hand-operated force measuring instrument |
| CN104605869A (en) * | 2015-02-15 | 2015-05-13 | 中国人民解放军第三军医大学第一附属医院 | Finger muscle strength quantitative measuring instrument and measuring method thereof |
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2015
- 2015-05-28 CN CN201510283595.0A patent/CN106264543A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7096731B1 (en) * | 2005-11-29 | 2006-08-29 | Mike Chien Ming Lee | Finger gripping force measuring device |
| CN102319081A (en) * | 2011-08-24 | 2012-01-18 | 北京航空航天大学 | Human body limb force exerting tester |
| CN202355418U (en) * | 2011-11-15 | 2012-08-01 | 北京航天易联科技发展有限公司 | Hand-operated force measuring instrument |
| CN104605869A (en) * | 2015-02-15 | 2015-05-13 | 中国人民解放军第三军医大学第一附属医院 | Finger muscle strength quantitative measuring instrument and measuring method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220265188A1 (en) * | 2021-02-22 | 2022-08-25 | U.S. Army Combat Capabilities Development Command, Army Research Labortory | Dynamic gripping system for anthropometric acquisition and fitment for weapons and hand tools |
| US11957453B2 (en) * | 2021-02-22 | 2024-04-16 | The United States Of America As Represented By The Secretary Of The Army | Dynamic gripping system for anthropometric acquisition and fitment for weapons and hand tools |
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