CN106057031B - A kind of gyro approximation theory validating instrument - Google Patents

A kind of gyro approximation theory validating instrument Download PDF

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Publication number
CN106057031B
CN106057031B CN201610345999.2A CN201610345999A CN106057031B CN 106057031 B CN106057031 B CN 106057031B CN 201610345999 A CN201610345999 A CN 201610345999A CN 106057031 B CN106057031 B CN 106057031B
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China
Prior art keywords
gyro
motor
approximation theory
holder
disk
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Expired - Fee Related
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CN201610345999.2A
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Chinese (zh)
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CN106057031A (en
Inventor
王涛
李阳
王宁
刘佳奇
王浩
唐杰
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Civil Aviation University of China
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Civil Aviation University of China
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/06Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
    • G09B23/08Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
    • G09B23/10Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of solid bodies

Abstract

The invention discloses a kind of gyro approximation theory validating instruments, including motor, idler wheel, pressure sensor, holder, disk, control acquisition module, display, it includes control element and analog-to-digital conversion module to control acquisition module, script is abstracted obscure gyro approximation theory and is shown with specific mock-up by the gyro approximation theory validating instrument, facilitate teacher intuitively to impart knowledge to students gyro approximation theory, student is made to be easier to understand gyro approximation theory.

Description

A kind of gyro approximation theory validating instrument
Technical field
The invention belongs to teaching aid technical field, more particularly to a kind of gyro approximation theory validating instrument.
Background technology
In daily life, many interesting phenomenons be can be frequently observed.Such as:When bicycle is static, if without vehicle Frame supports, and bicycle will fall down, but when cycling, vehicle body would not fall down;For another example toy gyroscope is around its symmetry axis When high speed rotation, gyro will not fall down after being disturbed, but its symmetry axis fixing axle will rotate in space, these phenomenons are known as Gyro phenomenon.Gyro is widely used in engineering technology, as aircraft, the inertial navigation on naval vessel and control, modern technologies make Gyro, spin velocity are typically much deeper than angular velocity of precession, i.e. ω1>>ω2.Gyro fundamental formular can be write as MO=Jz ω2×ω1, this formula is also referred to as gyro approximate formula, and the gyrodynamics established based on gyro approximate formula is theoretical, referred to as Gyro approximation theory.
The dynamics of rational mechanics, usually with abstract hard to understand and famous, for the university student of rigid contact theory mechanics, Receive and understands it at a difficult task.
Invention content
The object of the present invention is to provide a kind of gyro approximation theory validating instruments.
For this purpose, technical solution of the present invention is as follows:
A kind of gyro approximation theory validating instrument, including motor, idler wheel, pressure sensor, holder, disk, control acquisition mould Block, display;It includes control element and analog-to-digital conversion module to control acquisition module;The output shaft of motor is in the top of holder The heart enters the inside of holder, and motor is fixed on holder, and idler wheel is connected by connector with the output shaft of motor;Disk is set It sets in the inside of holder, and the output shaft of disc centre and motor is point-blank, the lower surface of disk is centrally through pressure Sensor is fixed on holder, and idler wheel is arranged in the upper surface of disk;Motor, pressure sensor and display are acquired with control Modular electrical connects.
The motor is RE35 direct current brushless servo motors and motor is equipped with motor code-disc.
The pressure sensor is 20kg pressure sensors.
The holder is symmetrical frame structure.
The control element uses STC89C52 type microcontrollers.
The analog-to-digital conversion module uses HX711 type A/D conversion chips.
Compared with prior art, which is abstracted obscure gyro approximation theory with specific by script Mock-up show, facilitate teacher intuitively to impart knowledge to students gyro approximation theory, make student to gyro approximation theory It is easier to understand.
Description of the drawings
Fig. 1 is the structural schematic diagram of gyro approximation theory validating instrument provided by the invention.
Fig. 2 is the side view of gyro approximation theory validating instrument provided by the invention.
Fig. 3 is the electric drawings of gyro approximation theory validating instrument provided by the invention.
Fig. 4 is the stress diagram of motor.
Fig. 5 is the stress diagram of idler wheel.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described further, but following embodiments are absolutely not to this hair It is bright to have any restrictions.
As shown in Figs. 1-5, which includes motor 1, idler wheel 2, pressure sensor 3, holder 4, circle Disk 5, control acquisition module 6, display 7;It includes control element 8 and analog-to-digital conversion module 9 to control acquisition module 6;Motor 1 it is defeated Shaft enters the inside of holder 4 through the top center of holder 4, and motor 1 is fixed on holder 4, and idler wheel 2 passes through connection Part is connected with the output shaft of motor 1;Disk 5 is arranged in the inside of holder 4, and the output shaft of 5 center of disk and motor 1 is at one On straight line, the lower surface of disk 5 is fixed on centrally through pressure sensor 3 on holder 4, and the upper table in disk 5 is arranged in idler wheel 2 Face;Motor 1, pressure sensor 3 and display 7 are electrically connected with control acquisition module 6.
The motor 1 is RE35 direct current brushless servo motors and motor 1 is equipped with motor code-disc.
The pressure sensor 3 is 20kg pressure sensors.
The holder 4 is symmetrical frame structure.
The control element 8 uses STC89C52 type microcontrollers.
The analog-to-digital conversion module 9 uses HX711 type A/D conversion chips.
The operation principle of gyro approximation theory validating instrument provided by the invention is as follows:
Gyro approximation theory validating instrument provided by the invention when in use, first by motor 1, pressure sensor 3, display 7 are powered with control acquisition module 6, and the output shaft of motor 1 rotates under the control of control acquisition module 6, from there through even The idler wheel 2 that fitting drives makees the uniform circular motion that radius is R on disk 5, and at the same time, idler wheel 2 itself is made using r as radius Uniform circular motion, pressure sensor 3 is by the disk 5 detected in real time to the holding power N of idler wheel 2 and the weight of itself of idler wheel 2 The vector sum of power G is transferred to HX711 analog-to-digital conversion modules 9, and analog-to-digital conversion module 9 can detect above-mentioned pressure sensor 3 Voltage signal amplify 128 times, the then AD conversion value of sampling output 24bit, control element 8 is by specified sequential by 24bit Data are read in, and the results are shown on display 7, at the same time, the motor code-disc on motor 1 arrives the speed feedback of motor On control element 8, control element 8 again by this presentation of information on the display 7.
Fig. 4-Fig. 5 is the force analysis figure of gyro approximation theory validating instrument provided by the invention,
Gyro fundamental formular is:
WhereinFor the spin velocity of idler wheel 2,For the angular velocity of precession of idler wheel 2;
Formula (1) abbreviation can obtain:
C wherein in formula (2) is the rotary inertia of rigid body;
From Fig. 4-Fig. 5 it is found that the angular velocity omega of motor 1 is the angular velocity of precession of idler wheel 2, the spin velocity of idler wheel 2 ForThen formula (2) can be write as:
During the motion, disk 5 is rolling to the vector sum of the holding power N and idler wheel 2 of idler wheel 2 the gravity G of itself to idler wheel 2 Wheel 2 provides the torque in motion process, then has:
Combined with formula (2) from formula (3):
The motor speed ω of motor code-disc feedback on motor 1 is brought into formula (5), and result of calculation and pressure are passed The observed pressure of sensor 1 is compared, to verify gyro approximation principle.

Claims (6)

1. a kind of gyro approximation theory validating instrument, which is characterized in that the gyro approximation theory validating instrument include motor (1), Idler wheel (2), pressure sensor (3), holder (4), disk (5), control acquisition module (6), display (7);Control acquisition module (6) include control element (8) and analog-to-digital conversion module (9);The output shaft of motor (1) through holder (4) top center and into Enter the inside of holder (4), and motor (1) is fixed on holder (4), the output shaft that idler wheel (2) passes through connector and motor (1) It is connected;Disk (5) setting is in the inside of holder (4), and the output shaft of disk (5) center and motor (1) is point-blank, circle The lower surface of disk (5) is fixed on centrally through pressure sensor (3) on holder (4), and the upper table in disk (5) is arranged in idler wheel (2) Face;Motor (1), pressure sensor (3) and display (7) are electrically connected with control acquisition module (6).
2. gyro approximation theory validating instrument according to claim 1, which is characterized in that the motor (1) is that RE35 is straight It flows brushless servo motor and motor (1) is equipped with motor code-disc.
3. gyro approximation theory validating instrument according to claim 1, which is characterized in that the pressure sensor (3) is 20kg pressure sensors.
4. gyro approximation theory validating instrument according to claim 1, which is characterized in that the holder (4) is left and right pair The frame structure of title.
5. gyro approximation theory validating instrument according to claim 1, which is characterized in that the control element (8) uses STC89C52 type microcontrollers.
6. gyro approximation theory validating instrument according to claim 1, which is characterized in that the analog-to-digital conversion module (9) Using HX711 type A/D conversion chips.
CN201610345999.2A 2016-05-23 2016-05-23 A kind of gyro approximation theory validating instrument Expired - Fee Related CN106057031B (en)

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CN201610345999.2A CN106057031B (en) 2016-05-23 2016-05-23 A kind of gyro approximation theory validating instrument

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Application Number Priority Date Filing Date Title
CN201610345999.2A CN106057031B (en) 2016-05-23 2016-05-23 A kind of gyro approximation theory validating instrument

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CN106057031B true CN106057031B (en) 2018-09-28

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113012541B (en) * 2021-03-01 2023-01-06 李能琴 Visual teaching aid for classroom teaching

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2059527U (en) * 1989-08-13 1990-07-18 天津第二医学院 Telecontrolled rotating demonstrator
CN1052371A (en) * 1990-05-23 1991-06-19 航空航天部第一设计研究院十五所 Gyroscope north searching instrument
CN2316686Y (en) * 1997-08-14 1999-04-28 天津大学 Multifunctional demonstrator for rigid body precessional motion
WO2007084090A1 (en) * 2006-01-20 2007-07-26 Lykhovyd Yuriy M Method of generating coriolis's levitation forces and a gyroscopic system ('gyro-turbine')
CN101436356A (en) * 2008-12-16 2009-05-20 北京航空航天大学 Apparatus and method for measuring gyro moment
CN103776434A (en) * 2012-10-23 2014-05-07 于中权 Novel gyro north seeker and north seeking method
CN203629581U (en) * 2013-12-31 2014-06-04 杭州士兰微电子股份有限公司 Self-adaptive rotation speed measuring system based on inertial sensor
CN203931278U (en) * 2014-07-09 2014-11-05 湖州师范学院 A kind of gyroscopic procession demonstrator
CN204346447U (en) * 2015-01-09 2015-05-20 龚建 Pendulum type gyroscope north searching instrument

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2059527U (en) * 1989-08-13 1990-07-18 天津第二医学院 Telecontrolled rotating demonstrator
CN1052371A (en) * 1990-05-23 1991-06-19 航空航天部第一设计研究院十五所 Gyroscope north searching instrument
CN2316686Y (en) * 1997-08-14 1999-04-28 天津大学 Multifunctional demonstrator for rigid body precessional motion
WO2007084090A1 (en) * 2006-01-20 2007-07-26 Lykhovyd Yuriy M Method of generating coriolis's levitation forces and a gyroscopic system ('gyro-turbine')
CN101436356A (en) * 2008-12-16 2009-05-20 北京航空航天大学 Apparatus and method for measuring gyro moment
CN103776434A (en) * 2012-10-23 2014-05-07 于中权 Novel gyro north seeker and north seeking method
CN203629581U (en) * 2013-12-31 2014-06-04 杭州士兰微电子股份有限公司 Self-adaptive rotation speed measuring system based on inertial sensor
CN203931278U (en) * 2014-07-09 2014-11-05 湖州师范学院 A kind of gyroscopic procession demonstrator
CN204346447U (en) * 2015-01-09 2015-05-20 龚建 Pendulum type gyroscope north searching instrument

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