CN109655187A - A kind of rotating disc type wireless control Coriolis force measurement experiment instrument - Google Patents
A kind of rotating disc type wireless control Coriolis force measurement experiment instrument Download PDFInfo
- Publication number
- CN109655187A CN109655187A CN201910006494.7A CN201910006494A CN109655187A CN 109655187 A CN109655187 A CN 109655187A CN 201910006494 A CN201910006494 A CN 201910006494A CN 109655187 A CN109655187 A CN 109655187A
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- China
- Prior art keywords
- turntable
- track
- steel ball
- coriolis force
- rotating disc
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
-
- 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
Abstract
A kind of rotating disc type wireless control Coriolis force measurement experiment instrument, including pedestal, turntable is provided on pedestal, the turntable is circle, turntable is made of acrylic material, and turntable the center point offers middle via, is provided with conducting slip ring at middle via, disk upper surface is symmetrically opened up there are two track, and one end of one of track symmetrically opens up that there are two force-measuring sensing tanks.The beneficial effects of the invention are as follows using the acrylic turntable for having radial track, the radial motion of smooth steel ball simulation object is placed in track, using the movement velocity of ZigBee wireless communication technique control turntable and steel ball, the radial motion speed of rotary speed and steel ball can be shown by mobile phone software interface, and wireless transmission camera is disposed on turntable, the image of steel ball radial motion can be clearly seen on mobile phone by WiFi wireless communication, to visually demonstrate the size and Correlative Influence Factors with quantitative measurment Coriolis force.
Description
Technical field
The present invention relates to college physics teaching experimental provision technical fields, and in particular in a kind of rotating disc type wireless control section
Ao Lili measurement experiment instrument.
Background technique
Coriolis force is generated due to the rotation of the earth and the radially movable interaction of object.In university's object
In reason teaching, many teachers are demonstrated Coriolis force principle and use around the injection water of center rotation or surrounded using husky pendulum
Central axis rotation leaks husky track to demonstrate.Somebody installs 2 roundels, 2 roundel housing skins on a big disk
Band, when deep bid rotation, 2 roundel relative motions, belt can follow tension or loosen, and demonstrate Coriolis force with this
Presence.All these devices can only demonstrate the principle of Coriolis force generation to a certain extent, and experimental provision is cumbersome, no
It is enough intuitive, it less can be carried out quantitative measurment.
Summary of the invention
It is above-mentioned to solve the purpose of the present invention is to provide a kind of rotating disc type wireless control Coriolis force measurement experiment instrument
The problem of being proposed in background technique.
To achieve the above object, the invention provides the following technical scheme:
A kind of rotating disc type wireless control Coriolis force measurement experiment instrument, including pedestal are provided with turntable on pedestal, described
Turntable is circle, and turntable is made of acrylic material, and turntable the center point offers middle via, is provided with and leads at middle via
Electric slip ring, disk upper surface are symmetrically opened up there are two track, and one end of one of track symmetrically opens up that there are two force-measuring sensings
Tank is fixedly installed with load cell in force-measuring sensing tank；
The length of the track is 16 centimetres, width is 1.4 centimetres, depth is 0.8 centimetre, and track upper surface indicates quarter
It spends, the steel ball that diameter is 1.2 centimetres is placed in track, is fixedly connected with decelerating motor on the turntable, decelerating motor is defeated
Concave wheel is fixedly connected on shaft, concave wheel is connected by flexible cord with steel ball；
The disk upper surface is further fixedly arranged on wireless transmission camera, wireless transmission camera face track；
The pedestal includes pedestal lower part and base upper cover, and turntable and base upper cover are glued together, and the circle of the two
The heart is overlapped；The base upper cover includes integrated round boss and edge, and several half are uniformly provided on integrated round boss
Spherical groove, the centre of integrated round boss are disposed with occlusion gear；It is also equipped on integrated round boss light-blocking
Piece；
The pedestal lower part include shell, internal layer boss, drive motor, driving gear, steel ball, ZigBee-WiFi gateway,
ZigBee terminal, speed probe, drive control plate and regulated power supply, internal layer boss top are slotted, and are placed with steel in slot
Pearl, steel ball fit with hemispherical groove；The output shaft of the drive motor is fixedly connected with driving gear, drives gear and stings
Gear is closed to be meshed；The speed probe is fixed in pedestal lower part, and there is a photodetection mouth in upper end, and light barrier is from photodetection
Pass through at mouthful and every by primary light-blocking primary.
Be as further effect of the present invention: the opening of the force-measuring sensing tank is flushed with the inner wall of track, and steel
Ball stress point just acts on the stress surface of load cell.
As the present invention, further effect is: it is straight that the base diameter of the wireless transmission camera is greater than middle via
Diameter.
As the present invention, further effect is: the base upper cover diameter is greater than pedestal lower diameter.
As the present invention, further effect is: the conducting slip ring passes through turntable and base upper cover extends downward into bottom
In seat lower part.
As the present invention, further effect is: the drive motor is fixed in the plastic sleeve of pedestal lower part.
As the present invention, further effect is: the decelerating motor and drive motor are electrically connected with drive control plate
It connects, ZigBee terminal and ZigBee-WiFi gateway wirelessly communicate, and ZigBee terminal instructs control drive control by host computer
Plate, wireless transmission camera are wirelessly connected by WiFi router and user mobile phone, and the WiFi router is connect with internet,
ZigBee-WiFi gateway is connect with user mobile phone signal；The signal of the speed probe inputs ZigBee terminal.
As the present invention, further effect is: supply hub is provided on the pedestal lower outside wall, power supply is inserted
Hole is electrically connected with regulated power supply, and the regulated power supply output multi-channel pressure stabilizing value to ZigBee-WiFi gateway, ZigBee terminal,
Speed probe and drive control plate.
The beneficial effects of the invention are as follows using the acrylic turntable for having radial track, track is interior to place smooth steel ball mould
The radial motion of quasi- object passes through cell phone software using the movement velocity of ZigBee wireless communication technique control turntable and steel ball
Interface can show the radial motion speed of rotary speed and steel ball, and wireless transmission camera is disposed on turntable, pass through
WiFi wirelessly communicates the image that steel ball radial motion can be clearly seen on mobile phone, thus in ocular demonstration and quantitative measurment section
The size and Correlative Influence Factors of Ao Lili.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the surface texture figure of turntable of the present invention；
Fig. 3 is the schematic diagram of device on turntable of the present invention；
Fig. 4 is the outline structural diagram of pedestal of the present invention；
Fig. 5 is the structural schematic diagram of base upper cover of the present invention；
Fig. 6 is the structural schematic diagram of pedestal lower part of the present invention；
Fig. 7 is Principle of Communication figure of the invention；
Fig. 8 is the software interface figure of host computer of the present invention；
Fig. 9 is wireless image transmission interface of the invention.
In figure: 1, track；2, force-measuring sensing tank；3, middle via；4, load cell；5, decelerating motor；6, wireless
Transmission camera；7, steel ball；8, flexible cord；9, scale；10, turntable；11, conducting slip ring；12, base upper cover；13, pedestal lower part；
14, supply hub；15, integrated round boss；16, edge；17, hemispherical groove；18, it is engaged gear；19, light barrier；20,
Steel ball；21, drive motor；22, gear is driven；23, speed probe；24, internal layer boss；25, shell；26,ZigBee-WiFi
Gateway；27, ZigBee terminal；28, regulated power supply；29, drive control plate；30, plastic sleeve.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-Fig. 2, in the embodiment of the present invention, a kind of rotating disc type wireless control Coriolis force measurement experiment instrument,
Including pedestal, turntable 10 is provided on pedestal, the turntable 10 is circle, and turntable 10 is made of acrylic material, and turntable 10
The center point offers middle via 3, and conducting slip ring 11 is provided at middle via 3, there are two 10 upper surface of turntable symmetrically opens up
Track 1, one end of one of track 1 are symmetrically opened up there are two force-measuring sensing tank 2, and force-measuring sensing tank 2 is interior to be fixedly mounted
There is load cell 4；
The length of the track 1 is 16 centimetres, width is 1.4 centimetres, depth is 0.8 centimetre, and 1 upper surface of track indicates
Scale 9 is placed with the steel ball 7 that diameter is 1.2 centimetres in track 1, and steel ball 7 is placed in track 1 and can move freely, frictional force
It can be ignored, decelerating motor 5 is fixedly connected on the turntable 10, is fixedly connected with concave wheel on 5 output shaft of decelerating motor,
Concave wheel is connected by flexible cord 8 with steel ball 7, and flexible cord 8 can coil in concave wheel, and flexible cord 8 can be with 5 output shaft of decelerating motor
Rotation is rolled or is decontroled；
10 upper surface of turntable is further fixedly arranged on wireless transmission camera 6,6 face track 1 of wireless transmission camera,
Wireless transmission camera 6 is fixed on 10 center of turntable, rotates together with turntable 10, and the alignment of wireless transmission camera 6 is placed with
The track 1 of steel ball 7, and by the wireless connection of WiFi router image transmitting to user mobile phone.The user mobile phone installation
There are control software and image to receive software, it can be by controlling the revolving speed of software control turntable 10 revolving speed and decelerating motor 5, and be somebody's turn to do
Software has been developed, and can also show revolving speed；Image, which receives software, can show what steel ball 7 was run in track 1
The time that situation and steel ball 7 are run.
The pedestal includes pedestal lower part 13 and base upper cover 12, and turntable 10 and base upper cover 12 are glued together, and
The center of circle of the two is overlapped；The base upper cover 12 includes integrated round boss 15 and edge 16, on integrated round boss 15
Several hemispherical grooves 17 are uniformly provided with, the centre of integrated round boss 15 is disposed with occlusion gear 18；In integration
Light barrier 19 is also equipped on round boss 15；
The pedestal lower part 13 include shell 25, internal layer boss 24, drive motor 21, driving gear 22, steel ball 20,
ZigBee-WiFi gateway 26, ZigBee terminal 27, speed probe 23, drive control plate 29 and regulated power supply 28, the internal layer
24 top of boss is slotted, and is placed with steel ball 20 in slot, steel ball 20 fits with hemispherical groove 17；The drive motor 21 it is defeated
Shaft is fixedly connected with driving gear 22, and driving gear 22 is meshed with occlusion gear 18；The speed probe 23 is fixed on
In pedestal lower part 13, there is photodetection mouth in upper end, and light barrier 19 passes through from photodetection mouth, the ZigBee-WiFi gateway
26 realize that the wireless communication with mobile phone and ZigBee terminal 27, the ZigBee terminal 27 being capable of output signal control drive controls
Plate 29 adjusts the revolving speed of drive motor 21 and decelerating motor 5 to control the output voltage and electric current of drive control plate 29.Institute
It states drive motor 21 and uses large torque decelerating motor, revolving speed is controlled by drive control plate 29；The drive control plate 29 is controlled
In 27 signal of ZigBee terminal, adjustable operating voltage and electric current are provided for drive motor 21 and decelerating motor 5.
The load cell 4 uses strain gauge, and 0-500 grams of range, internal structure includes a sensitive stress
Sensor and a null-type bridge circuit, measuring signal input ZigBee terminal 27；The speed probe 23, is opened using photoelectricity
Principle is closed, measuring signal is inputted to ZigBee terminal 27 in a manner of counting；The regulated power supply 28 is by (50 hertz of AC 220 V
It hereby) provides, obtains multipath voltage regulation value as ZigBee-WiFi gateway 26, ZigBee terminal by rectifying and wave-filtering and voltage regulator circuit
27, the operating voltage of load cell 4, speed probe 23 and drive control plate 29.
The speed probe 23 is fixed in pedestal, and there are photodetection mouth, the light barrier 19 on base upper cover 12 in upper end
It can just pass through from photodetection mouth and every by primary light-blocking primary, it is every to pass through a photodetection mouth, speed probe
23 just record a signal.The ZigBee-wiFi gateway 26 can be realized between user mobile phone and ZigBee terminal 27
Communication, the wireless camera 6 are wirelessly communicated by WiFi router and user mobile phone, and the above two-way communications setting can pass through
Cell phone software switching.
The opening of the force-measuring sensing tank 2 is flushed with the inner wall of track 1, and steel ball is just acted on dynamometry by 7 forces
On the stress surface of sensor 4.
The base diameter of the wireless transmission camera 6 is greater than 3 diameter of middle via.
12 diameter of base upper cover is greater than 13 diameter of pedestal lower part.
The conducting slip ring 11 passes through turntable 10 and base upper cover 12 extends downward into pedestal lower part 13, conducting slip ring 11
Be fixed on 10 middle position of turntable, wireless transmission camera 6, load cell 4, decelerating motor 5 lead (including power supply line and
Signal wire) all by the drive control plate 29 in conducting slip ring 11 and pedestal lower part 13, ZigBee-WiFi gateway 26, ZigBee
Terminal 27, regulated power supply 28 connect.
The drive motor 21 is fixed in the plastic sleeve 30 of pedestal lower part 13.
The decelerating motor 5 and drive motor 21 are electrically connected with drive control plate 29, ZigBee terminal 27 and ZigBee-
WiFi gateway 26 wirelessly communicates, and ZigBee terminal 27 instructs control drive control plate 29, wireless transmission camera 6 by host computer
It is wirelessly connected by WiFi router and user mobile phone, the WiFi router is connect with internet, ZigBee-WiFi gateway 26
It is connect with user mobile phone signal；The signal of the speed probe 23 inputs ZigBee terminal 27.
It is provided with supply hub 14 on 13 lateral wall of pedestal lower part, supply hub 14 is electrically connected with regulated power supply 28,
And the 28 output multi-channel pressure stabilizing value of regulated power supply is to ZigBee-WiFi gateway 26, ZigBee terminal 27,28 and of speed probe
Drive control plate 29 provides operating voltage.
Referring to Fig. 8, inputting network address 127.0.0.1 when closing serial ports, the connection of WiFi gateway is selected, clicks mobile phone clothes
Business button, inserts the radius of quality and 4 center of load cell away from 10 center of turntable of steel ball 7, under click in interface
Draw menuSelect the speed of turntable 10 and the speed of steel ball 7, the selection of 10 steering position of turntable just or instead, control turntable
10 steering.Measured value column shows Coriolis force and centrifugal inertial force, calculated value are according to Coriolis force and inertial centrifugal
The result that power formula calculates.(note: for the data in Fig. 8 as just reference, serial ports is used for PC connection).
Referring to Fig. 9,For record button,For high definition, button is set,Playing back videos, can with slow play,Video time display field.Playing back videos use slow motion, show in conjunction with scale, according to steel ball 7 move displacement with
Time, the speed of the movement of steel ball 7 can be calculated, the speed that this speed and decelerating motor 5 are controlled approaches.
Concrete operating principle of the invention is:
Specifically used method:
The principle generated according to Coriolis forceWherein, FkCoriolis force is represented, m represents steel ball
Quality,Rotary speed is represented,Represent the speed of steel ball radial motion.
Rotary base needs to be placed on horizontal platform first, after being powered up, opens cell phone software, selection
The local area network that ZigBee-WiFi gateway is established, establishes the network connection of ZigBee-WiFi gateway Yu ZigBee terminal；It opens again
Wireless image transmission software establishes the connection between mobile phone and wireless transmission camera using WiFi, adjusts wireless camera
Pitch angle, it can be seen that steel ball and track on interface；
Then, according to measuring principle, software interface the corresponding button is clicked, changes revolving speed and the steel ball radial motion of turntable
Speed measures the revolving speed of turntable and the speed of steel ball radial motion, calculates the size of Coriolis force, and with load cell
Measured value is compared.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of rotating disc type wireless control Coriolis force measurement experiment instrument, including pedestal, turntable, feature are provided on pedestal
It is, the turntable is circle, and turntable is made of acrylic material, and turntable the center point offers middle via, middle via
Place is provided with conducting slip ring, and disk upper surface symmetrically opens up that there are two tracks, and one end of one of track symmetrically offers two
A force-measuring sensing tank is fixedly installed with load cell in force-measuring sensing tank；
The length of the track is 16 centimetres, width is 1.4 centimetres, depth is 0.8 centimetre, and track upper surface indicates scale,
It is placed with the steel ball that diameter is 1.2 centimetres in track, is fixedly connected with decelerating motor, geared motor output shaft on the turntable
On be fixedly connected with concave wheel, concave wheel is connected by flexible cord with steel ball；
The disk upper surface is further fixedly arranged on wireless transmission camera, wireless transmission camera face track；
The pedestal includes pedestal lower part and base upper cover, and turntable and base upper cover are glued together, and the center of circle weight of the two
It closes；The base upper cover includes integrated round boss and edge, is uniformly provided with several hemisphericals on integrated round boss
Groove, the centre of integrated round boss are disposed with occlusion gear；Light barrier is also equipped on integrated round boss；
The pedestal lower part include shell, internal layer boss, drive motor, driving gear, steel ball, ZigBee-WiFi gateway,
ZigBee terminal, speed probe, drive control plate and regulated power supply, internal layer boss top are slotted, and are placed with steel in slot
Pearl, steel ball fit with hemispherical groove；The output shaft of the drive motor is fixedly connected with driving gear, drives gear and stings
Gear is closed to be meshed；The speed probe is fixed in pedestal lower part, and there is a photodetection mouth in upper end, and light barrier is from photodetection
Pass through at mouthful and every by primary light-blocking primary.
2. rotating disc type wireless control Coriolis force measurement experiment instrument according to claim 1, which is characterized in that the survey
The opening of force snesor slot is flushed with the inner wall of track, and steel ball stress point just acts on the stress surface of load cell.
3. rotating disc type wireless control Coriolis force measurement experiment instrument according to claim 1, which is characterized in that the nothing
The base diameter of line transmission camera is greater than middle via diameter.
4. rotating disc type wireless control Coriolis force measurement experiment instrument according to claim 1 or 3, which is characterized in that institute
Base upper cover diameter is stated greater than pedestal lower diameter.
5. rotating disc type wireless control Coriolis force measurement experiment instrument according to claim 4, which is characterized in that described to lead
Electric slip ring passes through turntable and base upper cover extends downward into pedestal lower part.
6. rotating disc type wireless control Coriolis force measurement experiment instrument according to claim 1, which is characterized in that the drive
Dynamic motor is fixed in the plastic sleeve of pedestal lower part.
7. rotating disc type wireless control Coriolis force measurement experiment instrument according to claim 6, which is characterized in that described to subtract
Speed motor and drive motor are electrically connected with drive control plate, and ZigBee terminal and ZigBee-WiFi gateway wirelessly communicate,
ZigBee terminal instructs control drive control plate by host computer, and wireless transmission camera passes through WiFi router and user mobile phone
It is wirelessly connected, the WiFi router is connect with internet, and ZigBee-WiFi gateway is connect with user mobile phone signal；Described turn
The signal of fast sensor inputs ZigBee terminal.
8. rotating disc type wireless control Coriolis force measurement experiment instrument according to claim 7, which is characterized in that the bottom
It is provided with supply hub on seat lower outside wall, supply hub is electrically connected with regulated power supply, and the regulated power supply output multi-channel
Pressure stabilizing value is to ZigBee-WiFi gateway, ZigBee terminal, speed probe and drive control plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910006494.7A CN109655187B (en) | 2019-01-04 | 2019-01-04 | Turntable type wireless control Coriolis force measurement experimental instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910006494.7A CN109655187B (en) | 2019-01-04 | 2019-01-04 | Turntable type wireless control Coriolis force measurement experimental instrument |
Publications (2)
| Publication Number | Publication Date |
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| CN109655187A true CN109655187A (en) | 2019-04-19 |
| CN109655187B CN109655187B (en) | 2020-07-31 |
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ID=66118482
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910006494.7A Active CN109655187B (en) | 2019-01-04 | 2019-01-04 | Turntable type wireless control Coriolis force measurement experimental instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113299162A (en) * | 2021-06-21 | 2021-08-24 | 成都工业学院 | Multidimensional force and Coriolis acceleration demonstration measuring instrument |
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| CN103021233A (en) * | 2012-12-20 | 2013-04-03 | 天津大学 | Turntable type Coriolis force experimental instrument |
| CN203397559U (en) * | 2013-08-29 | 2014-01-15 | 李珺 | Coriolis force demonstration instrument |
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| US20160136532A1 (en) * | 2014-11-14 | 2016-05-19 | Min Ming Tarng | Disclub Golf & Phonefly: xPhone with SFDPCC & Dual-Phone-Watch Pair Smart Flying Disc Phone for Cloud Computation |
| CN207966252U (en) * | 2017-11-01 | 2018-10-12 | 赵正德 | Coriolis force demonstration apparatus |
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|---|---|---|---|---|
| CN202003547U (en) * | 2010-12-08 | 2011-10-05 | 复旦大学 | Coriolis force demonstration instrument |
| CN103021233A (en) * | 2012-12-20 | 2013-04-03 | 天津大学 | Turntable type Coriolis force experimental instrument |
| CN203397559U (en) * | 2013-08-29 | 2014-01-15 | 李珺 | Coriolis force demonstration instrument |
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| US20160136532A1 (en) * | 2014-11-14 | 2016-05-19 | Min Ming Tarng | Disclub Golf & Phonefly: xPhone with SFDPCC & Dual-Phone-Watch Pair Smart Flying Disc Phone for Cloud Computation |
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| CN109655187B (en) | 2020-07-31 |
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