CN110009977A - A kind of data acquisition device and method of physical throwing movement - Google Patents
A kind of data acquisition device and method of physical throwing movement Download PDFInfo
- Publication number
- CN110009977A CN110009977A CN201910094428.XA CN201910094428A CN110009977A CN 110009977 A CN110009977 A CN 110009977A CN 201910094428 A CN201910094428 A CN 201910094428A CN 110009977 A CN110009977 A CN 110009977A
- Authority
- CN
- China
- Prior art keywords
- guide rail
- data acquisition
- origin
- acquisition device
- micro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C23/00—Combined instruments indicating more than one navigational value, e.g. for aircraft; Combined measuring devices for measuring two or more variables of movement, e.g. distance, speed or acceleration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/10—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of solid bodies
Landscapes
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mathematical Analysis (AREA)
- Algebra (AREA)
- Computational Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present invention provides the data acquisition devices and method of a kind of movement of physical throwing, comprising: pressure sensor, angular sensor, level meter, origin alignment component, laser range finder；The pressure sensor is set to guide rail top, and angular sensor is set to the corner of guide rail, and level meter is set to the horizontal component of guide rail, and origin alignment component is set to the end of guide rail horizontal component, and the guide rail is fixed on inner panel；The laser range finder is respectively arranged one respectively at retaining groove one end and inner panel upper end, measures abscissa and ordinate respectively.By the setting point for continuously recording multiple level throw motion, and use curve matching each point, form parabola, it solves the problems, such as in level throw motion data acquisition in the prior art without the quantitative analysis characteristics of motion, the mode for realizing that qualitative and quantitative combines discloses the characteristics of motion, device design is simple, and operation difficulty is small, it is easier to universal.
Description
Technical field
The present invention relates to technical field of physical experiment, data acquisition device more particularly to a kind of movement of physical throwing and
Method.
Background technique
Object is dished out in the horizontal direction with certain initial velocity, does not consider air drag, object is under the effect of gravity
The movement done, is called level throw motion.Level throw motion can be decomposed on the linear uniform motion and vertical direction of horizontal direction
The movement of falling object the two componental movements.
Currently, the experimental method of studying rule of horizontal projectile movement has: 1, studying its motion profile using tracking method；2, it utilizes
Its characteristics of motion of photoflash quantitative study；3, its characteristics of motion of instrument qualitative analysis is decomposed using level throw motion.First method
Can only qualitative its motion profile of explanation, cannot study the laws of motion.Second method energy quantitative analysis rule of horizontal projectile movement, analysis
Deeply, effect is good, but experimental facilities is complicated, and price is high, operation difficulty is big, can only carry out in darkroom, therefore be difficult to popularize.Religion
The ready-made photo taken is commonly used in, student cannot test in person, and teacher is bad to demonstrate.The third method utilizes comparison
Method indirect analysis level throw motion, this method still fall within a kind of qualitative method.
Summary of the invention
The object of the present invention is to provide the data acquisition devices and method of a kind of movement of physical throwing, it is intended to solve existing skill
In art level throw motion data acquisition in without the quantitative analysis characteristics of motion the problem of, realize qualitative and quantitative combine mode disclose
The characteristics of motion, device design are simple to operation.
To reach above-mentioned technical purpose, the present invention provides a kind of data acquisition device of physical throwing movement, the dresses
It sets and includes:
Pressure sensor, angular sensor, level meter, origin alignment component, laser range finder；
The pressure sensor is set to guide rail top, and angular sensor is set to the corner of guide rail, level meter
It is set to the horizontal component of guide rail, origin alignment component is set to the end of guide rail horizontal component, and the guide rail is fixed on inner panel
On；
The inner panel is pasted with graph paper, and is fixed on pedestal, and the pedestal is additionally provided with sliding bar, the sliding bar
On be provided with retaining groove, the retaining groove is moved up and down along sliding bar, and is fixed on a certain position；
The laser range finder is respectively arranged one respectively at retaining groove one end and inner panel upper end, respectively measure abscissa and
Ordinate.
Preferably, the pressure sensor is used for the signal by obtaining release bead, and whether verifying bead has been fixed on
At beginning position, including inner conductors, copper rod, copper sheet, micro power and current detection component, the inner conductors are constantly in
With copper rod connection status, the external conducting wire of copper sheet is connect through micro power and current detection component with inner conductors, is constituted
Circuit.
Preferably, the copper rod be under pressure decline when, touch the copper sheet of bottom, entire circuit generates electric current, letter
It number is received by current detection component, current signal is wirelessly transmitted to computer terminal.
Preferably, the angular sensor be used for obtain object obtain initial velocity whereabouts angle, including fixed strip,
Electrical coil resistance conducting wire, micro-current table and micro power.
Preferably, it is provided with strip on the fixed strip, by the matching design with groove, for consolidating with different angle
Determine fixed strip, the bottom end connecting wire of the fixed strip respectively through micro power and micro-current table, and connects electricity by conducting wire
Resistance circle.
Preferably, the level meter is used to judge whether the horizontal component of guide rail is horizontally arranged, including tube ends copper sheet,
Iron ball, bottom end copper sheet, conducting wire, micro battery and current signal processing module, when laid horizontally, iron ball is in an intermediate position,
Absence of electric current, signal output end is without output, and when run-off the straight, iron ball is contacted with the copper sheet of certain one end, and with bottom copper sheet
It is constantly in connection, constitutes access.
Preferably, the origin alignment component is used to judge whether guide rail end to be aligned with graph paper origin, including metal
Salient point, miniature female tab, conducting wire, micro power and current signal processing module, the metal salient point are installed on guide rail end and go out
Mouth is being recessed close to the side of inner panel, the miniature female tab installation and the position on inner panel with origin level, the miniature female tab
Place is provided with metal coating.
The present invention also provides a kind of collecting methods of physical throwing movement, are realized using described device, described
Method the following steps are included:
S1, adjustment orbit angle check whether track end is overlapped with the origin of graph paper by origin alignment component, logical
It crosses level meter and checks whether track is horizontally arranged；
S2, whether it is released by pressure sensor monitoring bead, after bead is released, is measured using laser range finder
Cross, the ordinate of small placement；
S3, step S2 is repeated, obtains a certain number of landing point coordinates, and be fitted to curve；
S4, adjustment orbit angle, obtain the flat throwing curve under different angle respectively.
The effect provided in summary of the invention is only the effect of embodiment, rather than invents all whole effects, above-mentioned
A technical solution in technical solution have the following advantages that or the utility model has the advantages that
Compared with prior art, the present invention passes through setting pressure sensor, angular sensor, level meter, alignment group
Part, laser range finder realize the data acquisition of physical throwing movement.Whether discharged by the flat paraboloid of pressure sensor monitoring,
And angle information when being fallen using angular sensor monitoring, and it is utilized respectively level meter and the monitoring of origin alignment component
Whether whether horizontal and setting point is aligned guide rail with graph paper origin, to guarantee the accuracy of level throw motion data.Pass through
Cross, the ordinate in laser range finder monitoring setting point continuously record the whereabouts of multiple level throw motion by adjusting retaining groove height
Point, and curve matching each point is used, form parabola.The present invention solves can not in level throw motion data acquisition in the prior art
The problem of quantitative analysis characteristics of motion, realizes that the mode that qualitative and quantitative combines discloses the characteristics of motion, and device design is simple, operation
Difficulty is small, it is easier to universal.
Detailed description of the invention
Fig. 1 is a kind of data acquisition device structural schematic diagram of physical throwing movement provided in the embodiment of the present invention；
Fig. 2 is a kind of pressure sensor structure schematic diagram provided in the embodiment of the present invention；
Fig. 3 is a kind of angular sensor structural schematic diagram provided in the embodiment of the present invention；
Fig. 4 is a kind of level construction schematic diagram provided in the embodiment of the present invention；
Fig. 5 is a kind of origin alignment component structural schematic diagram provided in the embodiment of the present invention.
Specific embodiment
In order to clearly illustrate the technical characterstic of this programme, below by specific embodiment, and its attached drawing is combined, to this
Invention is described in detail.Following disclosure provides many different embodiments or example is used to realize different knots of the invention
Structure.In order to simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.In addition, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relationship between various embodiments and/or setting is discussed.It should be noted that illustrated component is not necessarily to scale in the accompanying drawings
It draws.Present invention omits the descriptions to known assemblies and treatment technology and process to avoid the present invention is unnecessarily limiting.
It is provided for the embodiments of the invention data acquisition device and the side of a kind of movement of physical throwing with reference to the accompanying drawing
Method is described in detail.
As shown in Figure 1, the embodiment of the invention discloses a kind of data acquisition device of physical throwing movement, the data are adopted
Acquisition means include:
Pressure sensor, angular sensor, level meter, origin alignment component, laser range finder；
The pressure sensor is set to guide rail top, and angular sensor is set to the corner of guide rail, level meter
It is set to the horizontal component of guide rail, origin alignment component is set to the end of guide rail horizontal component, and the guide rail is fixed on inner panel
On；
The inner panel is pasted with graph paper, and is fixed on pedestal, and the pedestal is additionally provided with sliding bar, the sliding bar
On be provided with retaining groove, the retaining groove is moved up and down along sliding bar, and is fixed on a certain position；
The laser range finder is respectively arranged one respectively at retaining groove one end and inner panel upper end, respectively measure abscissa and
Ordinate.
The pressure sensor is used for the signal by obtaining release bead, and whether verifying bead is fixed on initial position
Place, as shown in Fig. 2, verifying whether to clamp by current signal in the clip top placement force sensor of initial position
Object.
Inner conductors are constantly in be led through micro power with built-in with copper rod connection status, the external conducting wire of bottom copper sheet
Line connection, constitutes circuit.And the current detection component for being used for sensed current signal is set in the loop, at the top of the copper rod by
To when pressure decline, the copper sheet of bottom is touched, entire circuit generates electric current, and signal is received by current detection component, by electric current
Signal is wirelessly transmitted to computer terminal.The wireless transmission method includes bluetooth, Wifi etc..
Bead is fixed at the top of pressure sensor copper rod, when discharging bead, circuit is disconnected, according to current detection component
The curent change monitored verifies whether bead is released.
The angular sensor is used to obtain the whereabouts angle that object obtains initial velocity, and by angle information with telecommunications
Number form be sent to computer terminal, as shown in Figure 3.
Entire circuit includes fixed strip, electrical coil resistance conducting wire, micro-current table and micro power.It is set on the electrical coil resistance conducting wire
Fixed groove is set, in embodiments of the present invention, the quantity of groove is set as 17, makes 5 ° to 85 ° of angular transformation, every 5 ° one
Groove.Strip is provided on fixed strip, by the matching design with groove, for fixing fixed strip with different angle.It is described
The bottom end connecting wire of fixed strip respectively through micro power and micro-current table, and connects electrical coil resistance by conducting wire.Pass through judgement
The size of current in entire circuit is flowed through to calculate angle, the variation range of electric current is 0.1A~2.0A, and resistance range is 1~30
Ω, power supply 3V.When angle is 5 °, resistance is maximum in circuit at this time, and electric current is minimum, is 0.1A or so, when angle is 85 °
When, electric current is maximum in circuit, about 2A or so.
The level meter is for judging whether the horizontal component of guide rail is horizontally arranged, as shown in Figure 4.
The entire circuit of level meter includes tube ends copper sheet, iron ball, bottom end copper sheet, conducting wire, micro battery and electric current letter
Number processing module.When laid horizontally, iron ball is in an intermediate position, absence of electric current, and signal output end is without output, when inclining
When oblique, iron ball will be contacted with the copper sheet of certain one end, and be constantly in connection with bottom copper sheet, so that an access is constituted,
Output signal end output signal, instruction guide rail are not horizontally arranged.
The origin alignment component is used to judge whether guide rail end to be aligned with graph paper origin, as shown in Figure 5.
The entire circuit of origin alignment component includes at metal salient point, miniature female tab, conducting wire, micro power and current signal
Manage module.The metal salient point is installed on guide rail end and exports on the side of inner panel, the miniature female tab installation and inner panel
With the position of origin level.The miniature female tab is provided with metal coating in recess.
When guide rail end position and coordinate origin are coincide, current loop connection generates current signal, indicates at this time
Alignment, is not otherwise aligned, which needs the position consistency in graph paper origin and inner panel installation female tab.
The laser range finder is used to obtain the coordinate of small dip of ball position.Laser range finder is set in embodiments of the present invention
Two are set, is located on retaining groove one end and inner panel.Laser range finder in retaining groove is for measuring lateral distance, i.e., small placement
Abscissa；Starting point arrives the distance of retaining groove at the top of vertical laser range finder measurement graph paper on inner panel, i.e., small dip of ball is indulged
Coordinate.Thus the coordinate of each drop point of bead can be obtained, and is transmitted to computer terminal.
The embodiment of the present invention passes through setting pressure sensor, angular sensor, level meter, alignment component, Laser Measuring
Distance meter realizes the data acquisition of physical throwing movement.Whether discharged by the flat paraboloid of pressure sensor monitoring, and utilizes rotation
Angular transducer monitoring fall when angle information, and be utilized respectively level meter and origin alignment component monitoring guide rail whether water
Whether flat and setting point is aligned with graph paper origin, to guarantee the accuracy of level throw motion data.Pass through laser range finder
Cross, the ordinate in monitoring setting point continuously record the setting point of multiple level throw motion by adjusting retaining groove height, and use
Curve matching each point forms parabola.The present invention solves in level throw motion data acquisition in the prior art without quantitative analysis
The problem of characteristics of motion, realizes that the mode that qualitative and quantitative combines discloses the characteristics of motion, and device design is simple, and operation difficulty is small,
It is easier to popularize.
The embodiment of the invention also discloses a kind of collecting methods of physical throwing movement, and the method includes following behaviour
Make:
S1, adjustment orbit angle check whether track end is overlapped with the origin of graph paper by origin alignment component, logical
It crosses level meter and checks whether track is horizontally arranged；
S2, whether it is released by pressure sensor monitoring bead, after bead is released, is measured using laser range finder
Cross, the ordinate of small placement；
S3, step S2 is repeated, obtains a certain number of landing point coordinates, and be fitted to curve；
S4, adjustment orbit angle, obtain the flat throwing curve under different angle respectively.
Flat parabolic experimental instrument is placed on, by origin alignment component check track end whether the original with graph paper
Point is overlapped, and checks whether track is horizontally arranged by level meter.
The angle of adjustable track, by the spin button at swing-around trajectory, the angle of adjustable track, angular values are by rotating
Angular transducer obtains and sends the signal to computer terminal.It places bead and is fixed on track to initial position, and by clip
Vertex, pressure sensor on clip determine whether bead is released.
After discharging bead, bead is slipped on retaining groove, and a point can be left on graph paper, passes through laser ranging at this time
Instrument measures landing point coordinates, obtains its horizontal, ordinate.
The position height for adjusting retaining groove repeats level throw motion by high, the point until leaving predetermined quantity, with a light on earth
Sliding curve matching each point forms class parabola.
Conditions correlation test is carried out using control variate method, rotation angle is adjusted by spin button, makes its inclination angle from 5 °
Change to 90 °, repeats level throw motion, and be fitted geometric locus, observe the rule of horizontal projectile movement of bead.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of data acquisition device of physical throwing movement, which is characterized in that described device includes:
Pressure sensor, angular sensor, level meter, origin alignment component, laser range finder；
The pressure sensor is set to guide rail top, and angular sensor is set to the corner of guide rail, level meter setting
In the horizontal component of guide rail, origin alignment component is set to the end of guide rail horizontal component, and the guide rail is fixed on inner panel；
The inner panel is pasted with graph paper, and is fixed on pedestal, and the pedestal is additionally provided with sliding bar, sets on the sliding bar
It is equipped with retaining groove, the retaining groove is moved up and down along sliding bar, and is fixed on a certain position；
The laser range finder is respectively arranged one respectively at retaining groove one end and inner panel upper end, measures abscissa and vertical seat respectively
Mark.
2. a kind of data acquisition device of physical throwing movement according to claim 1, which is characterized in that the pressure passes
Sensor is used for the signal by obtaining release bead, and whether verifying bead is fixed on original position, including inner conductors, copper
Stick, copper sheet, micro power and current detection component, the inner conductors be constantly in copper rod connection status, copper sheet is external
A piece conducting wire is connect through micro power and current detection component with inner conductors, constitutes circuit.
3. a kind of data acquisition device of physical throwing movement according to claim 2, which is characterized in that the copper rod exists
It is under pressure when declining, touches the copper sheet of bottom, entire circuit generates electric current, and signal is received by current detection component, will be electric
Stream signal is wirelessly transmitted to computer terminal.
4. a kind of data acquisition device of physical throwing movement according to claim 1, which is characterized in that the rotation angle
Degree sensor is used to obtain the whereabouts angle that object obtains initial velocity, including fixed strip, electrical coil resistance conducting wire, micro-current table and micro-
Type power supply.
5. a kind of data acquisition device of physical throwing movement according to claim 4, which is characterized in that the fixed strip
On be provided with strip, by the matching design with groove, for fixing fixed strip, the bottom end of the fixed strip with different angle
Connecting wire respectively through micro power and micro-current table, and connects electrical coil resistance by conducting wire.
6. a kind of data acquisition device of physical throwing movement according to claim 1, which is characterized in that the level meter
For judging whether the horizontal component of guide rail is horizontally arranged, including tube ends copper sheet, iron ball, bottom end copper sheet, conducting wire, micro battery
And current signal processing module, when laid horizontally, iron ball is in an intermediate position, and absence of electric current, signal output end is without defeated
Out, when run-off the straight, iron ball is contacted with the copper sheet of certain one end, and is constantly in connection with bottom copper sheet, and access is constituted.
7. a kind of data acquisition device of physical throwing movement according to claim 1, which is characterized in that the origin pair
Homogeneous component is used to judge whether guide rail end to be aligned with graph paper origin, including metal salient point, miniature female tab, conducting wire, micro electric
Source and current signal processing module, the metal salient point is installed on guide rail end and exports close to the side of inner panel, described miniature
Female tab installation and the position on inner panel with origin level, the miniature female tab are provided with metal coating in recess.
8. a kind of collecting method of physical throwing movement, is realized using device described in claim 1-7 any one,
It is characterized in that, the described method comprises the following steps:
S1, adjustment orbit angle check whether track end is overlapped with the origin of graph paper by origin alignment component, pass through water
Level checks whether track is horizontally arranged；
S2, whether it is released by pressure sensor monitoring bead, after bead is released, measures bead using laser range finder
Cross, the ordinate of drop point；
S3, step S2 is repeated, obtains a certain number of landing point coordinates, and be fitted to curve；
S4, adjustment orbit angle, obtain the flat throwing curve under different angle respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910094428.XA CN110009977B (en) | 2019-01-30 | 2019-01-30 | Data acquisition device and method for physical horizontal projectile motion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910094428.XA CN110009977B (en) | 2019-01-30 | 2019-01-30 | Data acquisition device and method for physical horizontal projectile motion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110009977A true CN110009977A (en) | 2019-07-12 |
| CN110009977B CN110009977B (en) | 2022-04-01 |
Family
ID=67165594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910094428.XA Active CN110009977B (en) | 2019-01-30 | 2019-01-30 | Data acquisition device and method for physical horizontal projectile motion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110009977B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112270875A (en) * | 2020-11-03 | 2021-01-26 | 商洛学院 | Physical gravity experiment simulation device |
| CN112326460A (en) * | 2020-09-22 | 2021-02-05 | 河南大学 | Practical shear member bearing capacity test device |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2442231Y (en) * | 2000-10-19 | 2001-08-08 | 美华科技(南京)激光制品有限公司 | Laser level automatic scale |
| CN2531478Y (en) * | 2002-04-10 | 2003-01-15 | 叶德利 | Apparatus for demonstrating horizontal throw motion |
| CN2765144Y (en) * | 2004-12-22 | 2006-03-15 | 苏州宝时得电动工具有限公司 | Leveling instrument |
| CN1776770A (en) * | 2005-12-02 | 2006-05-24 | 上海市嘉定区第二中学 | Projectile motion demonstrating instrument and method |
| CN201134177Y (en) * | 2007-12-21 | 2008-10-15 | 华东师范大学科教仪器厂 | Experiment instrument of flat throw movement |
| CN101586992A (en) * | 2009-06-18 | 2009-11-25 | 西安交通大学 | Method for preparing pressure sensor with nano SiC thin film |
| CN102708734A (en) * | 2012-03-06 | 2012-10-03 | 张智剑 | Experimenter for automatically recording horizontal projectile motion trails |
| CN202929910U (en) * | 2012-11-22 | 2013-05-08 | 乐山师范学院 | Horizontal projectile motion physical experiment demonstration instrument |
| CN204375272U (en) * | 2014-12-08 | 2015-06-03 | 郑小利 | A kind of horizontal cast movement demonstration instrument |
| CN105116229A (en) * | 2015-07-21 | 2015-12-02 | 中国船舶重工集团公司第七一二研究所 | Fuel cell resistance measuring device |
| CN205282080U (en) * | 2015-12-09 | 2016-06-01 | 谢树枫 | Car snail loudspeaker |
| TW201635657A (en) * | 2015-03-20 | 2016-10-01 | 京鼎精密科技股份有限公司 | Magnetic electrical connector and plug of same |
| CN106159549A (en) * | 2015-03-31 | 2016-11-23 | 富士迈半导体精密工业（上海）有限公司 | Magnetic electric connector and joint thereof |
| CN106767441A (en) * | 2017-03-10 | 2017-05-31 | 刘庚 | A kind of motion for Machine Design coordinates checking device |
| CN106768513A (en) * | 2016-11-30 | 2017-05-31 | 北京大学 | A kind of pressure sensor and preparation method thereof |
| CN108461343A (en) * | 2018-03-09 | 2018-08-28 | 王杰 | A kind of mechanical switch |
| CN109119277A (en) * | 2018-10-19 | 2019-01-01 | 枣庄京弘电力材料有限公司 | A kind of high security multipath control switch |
-
2019
- 2019-01-30 CN CN201910094428.XA patent/CN110009977B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2442231Y (en) * | 2000-10-19 | 2001-08-08 | 美华科技(南京)激光制品有限公司 | Laser level automatic scale |
| CN2531478Y (en) * | 2002-04-10 | 2003-01-15 | 叶德利 | Apparatus for demonstrating horizontal throw motion |
| CN2765144Y (en) * | 2004-12-22 | 2006-03-15 | 苏州宝时得电动工具有限公司 | Leveling instrument |
| CN1776770A (en) * | 2005-12-02 | 2006-05-24 | 上海市嘉定区第二中学 | Projectile motion demonstrating instrument and method |
| CN201134177Y (en) * | 2007-12-21 | 2008-10-15 | 华东师范大学科教仪器厂 | Experiment instrument of flat throw movement |
| CN101586992A (en) * | 2009-06-18 | 2009-11-25 | 西安交通大学 | Method for preparing pressure sensor with nano SiC thin film |
| CN102708734A (en) * | 2012-03-06 | 2012-10-03 | 张智剑 | Experimenter for automatically recording horizontal projectile motion trails |
| CN202929910U (en) * | 2012-11-22 | 2013-05-08 | 乐山师范学院 | Horizontal projectile motion physical experiment demonstration instrument |
| CN204375272U (en) * | 2014-12-08 | 2015-06-03 | 郑小利 | A kind of horizontal cast movement demonstration instrument |
| TW201635657A (en) * | 2015-03-20 | 2016-10-01 | 京鼎精密科技股份有限公司 | Magnetic electrical connector and plug of same |
| CN106159549A (en) * | 2015-03-31 | 2016-11-23 | 富士迈半导体精密工业（上海）有限公司 | Magnetic electric connector and joint thereof |
| CN105116229A (en) * | 2015-07-21 | 2015-12-02 | 中国船舶重工集团公司第七一二研究所 | Fuel cell resistance measuring device |
| CN205282080U (en) * | 2015-12-09 | 2016-06-01 | 谢树枫 | Car snail loudspeaker |
| CN106768513A (en) * | 2016-11-30 | 2017-05-31 | 北京大学 | A kind of pressure sensor and preparation method thereof |
| CN106767441A (en) * | 2017-03-10 | 2017-05-31 | 刘庚 | A kind of motion for Machine Design coordinates checking device |
| CN108461343A (en) * | 2018-03-09 | 2018-08-28 | 王杰 | A kind of mechanical switch |
| CN109119277A (en) * | 2018-10-19 | 2019-01-01 | 枣庄京弘电力材料有限公司 | A kind of high security multipath control switch |
Non-Patent Citations (1)
| Title |
|---|
| 黄智伟: "《ARM嵌入式系统应用设计与实践》", 30 December 2016 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112326460A (en) * | 2020-09-22 | 2021-02-05 | 河南大学 | Practical shear member bearing capacity test device |
| CN112270875A (en) * | 2020-11-03 | 2021-01-26 | 商洛学院 | Physical gravity experiment simulation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110009977B (en) | 2022-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110009977A (en) | A kind of data acquisition device and method of physical throwing movement | |
| CN103543434B (en) | Indoor locating system, mobile phone and localization method | |
| WO2012171148A1 (en) | Real-time synchronous measurement system for multiple factors such as wind-blown sand electric field, sand particle electrification and wind speed | |
| CN101923136A (en) | Overhead device and power line monitoring device and method | |
| CN102023235B (en) | Contrapuntal detection equipment and contrapuntal detection method of solar cell panel detection system | |
| CN106123819B (en) | A kind of ' s focus of attention measurement method | |
| CN105043381A (en) | Magnetic nail-based positioning method | |
| CN208198446U (en) | A kind of railroad platform intelligence sign device | |
| KR101412748B1 (en) | System for ground resistance measurement of transmission tower equipped with overhead ground wires | |
| CN202838756U (en) | Experimental device for testing and verifying momentum conservation in small ball collision process | |
| CN206340234U (en) | A kind of level throw motion experimental rig | |
| CN101915853A (en) | Wind speed and direction testing device based on light spot position sensitivity | |
| CN207263662U (en) | A kind of rigid contact net detection device | |
| CN207352097U (en) | The automatic testing equipment of holder's equipment and POS terminal compatibility | |
| CN107356902B (en) | WiFi positioning fingerprint data automatic acquisition method | |
| CN202216688U (en) | Antenna azimuth angle detecting device | |
| CN207894579U (en) | Rail traffic bridge degree of disturbing detection device | |
| CN208921292U (en) | A kind of anti-tampering infrared temperature detector | |
| CN206573116U (en) | A kind of indoor multipoint positioner | |
| CN101533955A (en) | Precise testing deployment device of antenna spatial angle identified by wireless radio frequency | |
| CN106017692B (en) | Substation equipment temperature monitoring system based on multi-angle electronic label identification | |
| CN204667723U (en) | A kind of acceleration of gravity measurement mechanism | |
| CN201795803U (en) | Device for levelly positioning and measuring communication antenna | |
| CN106483566B (en) | Positioning system, method and the underground electronic tag survey meter of underground electronic tag | |
| CN208672670U (en) | Wind vane device for aligning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |