CN107437357A - A kind of testing stand for verifying that acceleration of gravity is unrelated with mass of object - Google Patents

A kind of testing stand for verifying that acceleration of gravity is unrelated with mass of object Download PDF

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Publication number
CN107437357A
CN107437357A CN201710603155.8A CN201710603155A CN107437357A CN 107437357 A CN107437357 A CN 107437357A CN 201710603155 A CN201710603155 A CN 201710603155A CN 107437357 A CN107437357 A CN 107437357A
Authority
CN
China
Prior art keywords
testing stand
arranged
unrelated
mass
object
Prior art date
Application number
CN201710603155.8A
Other languages
Chinese (zh)
Inventor
李保敏
Original Assignee
安徽华艾堂医疗科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 安徽华艾堂医疗科技有限公司 filed Critical 安徽华艾堂医疗科技有限公司
Priority to CN201710603155.8A priority Critical patent/CN107437357A/en
Publication of CN107437357A publication Critical patent/CN107437357A/en

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Classifications

    • 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

Abstract

The invention discloses a kind of testing stand for verifying that acceleration of gravity is unrelated with mass of object, belong to experimental instrument field, in order to be experimentally confirmed acceleration of gravity this principle unrelated with mass of object, the testing stand includes testing stand body, it is arranged on the bottom plate of testing stand body upper part, two rolling frames being arranged on bottom plate, distinguish the expansion link of connecting bottom board and rolling frame in both ends, the arrester being arranged on rolling frame, several quality difference but size identical experiment ball and the final back plate being arranged on rolling frame, first pressure detection module is provided with the upper surface of the one end of the rolling frame away from final back plate, final back plate is provided with second pressure detection module, timing module is additionally provided with each final back plate;Each timing module is connected with the first pressure detection module on rolling frame where it and second pressure detection module by wire respectively.Improve quality of instruction and teaching efficiency.

Description

A kind of testing stand for verifying that acceleration of gravity is unrelated with mass of object

Technical field

The invention belongs to experimental instrument field, is related to a kind of testing stand, more particularly to a kind of checking acceleration of gravity and thing The unrelated testing stand of weight.

Background technology

Gravity be object due to the attraction of the earth caused power, can have in the case of by Action of Gravity Field one of object Acceleration, this acceleration are just acceleration of gravity.Also free-fall acceleration is, is represented with g.Same height in areal Degree, the acceleration of gravity of any object is all identical.The numerical value of acceleration of gravity increases and reduced with height above sea level.In order to incite somebody to action Acceleration of gravity this principle unrelated with mass of object passes to student, and the best way is exactly to be experimentally confirmed this knot By.

The content of the invention

It is an object of the invention to provide a kind of testing stand for verifying that acceleration of gravity is unrelated with mass of object, demonstrate,proved by testing Bright acceleration of gravity this principle unrelated with mass of object, improves quality of instruction and teaching efficiency.

To achieve these goals, the invention provides following technical scheme:

A kind of testing stand for verifying that acceleration of gravity is unrelated with mass of object, the testing stand include testing stand body, set Connecting bottom board and rolling frame are stretched respectively for bottom plate, two rolling frames being arranged on bottom plate, both ends in testing stand body upper part Contracting bar, the arrester being arranged on rolling frame, several quality are different but size identical tests ball and is arranged on rolling frame On final back plate, final back plate is arranged on the upper surface of rolling frame one end, each rolling frame away from final back plate one First pressure detection module is provided with the upper surface at end, the second pressure is provided with the surface that each final back plate contacts with experiment ball Power detection module, timing module is additionally provided with each final back plate;Each timing module respectively with the on rolling frame where it One pressure detecting module is connected with second pressure detection module by wire.

The arrester is including the support being arranged on rolling frame, the second expansion link being arranged on support and is arranged on Sideboard on second expansion link.The testing stand body is rectangular parallelepiped structure, and testing stand body is set on the ground.The experiment Playscript with stage directions body bottom four corners are provided with one on tiptoe.The adjustable in length on tiptoe.The testing stand body is provided with detection and tried The whether horizontal horizontal plane detecting device of platform body upper surface is tested, the horizontal plane detecting device is arranged in a mutually vertical manner including two In the level detecting module of Detecting data body upper surface.The level detecting module includes being arranged on Detecting data body The mounting bracket of upper surface, the indicator board being arranged on mounting bracket and the pointer being arranged on indicator board and it is arranged on pointer one end Weight;The indicator board is provided with scale, and the pointer is connected by hinge with indicator board.The indicator board of two level detecting modules It is mutually perpendicular to and and horizontal plane.The horizontal plane detecting device 1 is arranged in a mutually vertical manner in Detecting data including two The level detecting module of body upper surface, the upper surface of the rolling frame are provided with sliding rail.Be additionally provided with final back plate and its The display module that timing module is connected by wire on the rolling frame of place.

The technical effects of the invention are that:Acceleration of gravity this principle unrelated with mass of object is experimentally confirmed, Improve quality of instruction and teaching efficiency.

Brief description of the drawings

Fig. 1 is the structure chart of the specific embodiment of the invention checking acceleration of gravity testing stand unrelated with mass of object;

Fig. 2 is the testing stand horizontal plane detection unrelated with mass of object of specific embodiment of the invention checking acceleration of gravity The structure chart of the level detecting module of device.

Embodiment

Below against accompanying drawing, by the description to embodiment, for example involved each component of embodiment of the invention Shape, construction, the mutual alignment and annexation between each several part, the effect of each several part and operation principle, manufacturing process and Operate with method etc., is described in further detail, to help those skilled in the art to inventive concept of the invention, technology Scheme has more complete, accurate and deep understanding.

As illustrated, a kind of testing stand for verifying that acceleration of gravity is unrelated with mass of object, the testing stand include testing stand Body 1, the bottom plate 2, two for being arranged on the top of testing stand body 1 set rolling frame 3 on a base plate 2, both ends to connect bottom respectively Plate 2 and the expansion link 4 of rolling frame 3, the arrester being arranged on rolling frame 3, several quality difference but size identical are real Test ball and the final back plate 9 being arranged on rolling frame 3.One end of rolling frame 3 and the upper surface of bottom plate 2 are connected through the hinge.

The arrester is including the support 5 being arranged on rolling frame 3, the second expansion link 6 being arranged on support 5 and sets Put the sideboard 7 on the second expansion link 6.

The testing stand body 1 is rectangular parallelepiped structure, and testing stand body 1 is set on the ground, steady in order to arrange, its bottom Portion corner is provided with one on tiptoe, in order that obtaining testing stand body 1 can be stably placed on different ground, and keeps Its upper surface and plane-parallel, the adjustable in length on tiptoe, and testing stand body 1 are provided with Detecting data body The whether horizontal horizontal plane detecting device 8 in 1 upper surface.

The horizontal plane detecting device 8 includes two levels being arranged in a mutually vertical manner in the upper surface of Detecting data body 1 Detection module, the level detecting module include being arranged on the mounting bracket of the upper surface of Detecting data body 1, are arranged on mounting bracket On indicator board and the pointer that is arranged on indicator board and the weight for being arranged on pointer one end.The indicator board is provided with scale, The pointer is connected by hinge with indicator board, and because pointer one end is provided with weight, weight is all the time just under gravity Lower section.The indicator board of two level detecting modules be mutually perpendicular to and and horizontal plane, therefore when two level detecting modules pointer When one end away from weight all points to corresponding scale on indicator board, it was demonstrated that put down with horizontal plane the upper surface of Detecting data body 1 OK.

Depart from rolling frame 3 when being rolled on rolling frame 3 to prevent from testing ball, the upper surface of the rolling frame 3, which is provided with, to be slided Dynamic rail road.Final back plate 9 is arranged on the upper surface of the one end of rolling frame 3, each described one end of rolling frame 3 away from final back plate 9 Upper surface at be provided with first pressure detection module, being provided with second at the surface that each final back plate 9 contact with experiment ball presses Power detection module, timing module is additionally provided with each final back plate 9.Each timing module respectively with rolling frame 3 where it First pressure detection module is connected with second pressure detection module by wire.In order to show the timing result of timing module, most The display module being connected with timing module on its place rolling frame 3 by wire is additionally provided with whole baffle plate 9.

During experiment, step 1:Each length on tiptoe is adjusted, is detected by horizontal plane detecting device 8, by Detecting data Horizontality is arrived in the regulation of the upper surface of body 1;Step 2:Second expansion link 6 is extended, the lower end of sideboard 7 is delivered to and rolled The distance between frame 3 is much smaller than the diameter of experiment ball, timing module clearing;Step 3:Two quality are different but size is identical Experiment ball be separately positioned on two rolling frames 3 be provided with arrester one end;Step 4:Expansion link 4 extends, and regulation rolls Angle between frame 3 and bottom plate 2;Step 5:Second expansion link 6 is shunk, and the lower end of sideboard 7 is delivered between rolling frame 3 Distance is more than when the diameter of ball is tested, and experiment ball starts to roll along sliding rail;Step 6:When experiment ball the first pressure of contact During power detection module, timing module starts timing;Step 7:When testing ball contact second pressure detection module, timing module Stop timing, and pass the result to display module.Due between first pressure detection module and second pressure detection module Distance is known and is constant, thus according to distance be equal to half acceleration and time square product, can be with Obtain testing the acceleration of ball, no matter how the quality that can obtain testing ball changes, as long as between rolling frame 3 and bottom plate 2 Angle is constant, and its acceleration is constant, it is possible to obtains the acceleration of gravity conclusion unrelated with mass of object.

The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that present invention specific implementation is not by aforesaid way Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is employed, or without changing Enter and the design of the present invention and technical scheme are directly applied into other occasions, within protection scope of the present invention.This hair Bright protection domain should be determined by the scope of protection defined in the claims.

Claims (10)

  1. A kind of 1. testing stand for verifying that acceleration of gravity is unrelated with mass of object, it is characterised in that:The testing stand includes testing stand Body (1), the bottom plate (2) for being arranged on testing stand body (1) top, two rolling frames (3) being arranged on bottom plate (2), both ends Connecting bottom board (2) and the expansion link (4) of rolling frame (3), the arrester being arranged on rolling frame (3), several quality respectively Different but size identical experiment ball and the final back plate (9) being arranged on rolling frame (3), final back plate (9) are arranged on rolling The upper surface of frame (3) one end, the first pressure is each provided with the upper surface of the one end of the rolling frame (3) away from final back plate (9) Power detection module, each final back plate (9) at the surface that contact of experiment ball with being provided with second pressure detection module, each finally Baffle plate is additionally provided with timing module on (9);Each timing module respectively with the first pressure detection module where it on rolling frame (3) Connected with second pressure detection module by wire.
  2. 2. the checking acceleration of gravity according to claim 1 testing stand unrelated with mass of object, it is characterised in that:It is described Arrester is including the support (5) being arranged on rolling frame (3), the second expansion link (6) being arranged on support (5) and is arranged on Sideboard (7) on second expansion link (6).
  3. 3. the checking acceleration of gravity according to claim 1 testing stand unrelated with mass of object, it is characterised in that:It is described Testing stand body (1) is rectangular parallelepiped structure, and testing stand body (1) is set on the ground.
  4. 4. the checking acceleration of gravity according to claim 1 testing stand unrelated with mass of object, it is characterised in that:It is described Testing stand body (1) bottom four corners are provided with one on tiptoe.
  5. 5. the checking acceleration of gravity according to claim 4 testing stand unrelated with mass of object, it is characterised in that:It is described Adjustable in length on tiptoe.
  6. 6. the checking acceleration of gravity according to claim 1 testing stand unrelated with mass of object, it is characterised in that:It is described Testing stand body (1) is provided with the whether horizontal horizontal plane detecting device (8) in Detecting data body (1) upper surface, the water Planar detecting device (8) includes two level detecting modules being arranged in a mutually vertical manner in Detecting data body (1) upper surface.
  7. 7. the checking acceleration of gravity according to claim 6 testing stand unrelated with mass of object, it is characterised in that:It is described Level detecting module includes being arranged on mounting bracket, the indicator board being arranged on mounting bracket of Detecting data body (1) upper surface With the pointer being arranged on indicator board and the weight for being arranged on pointer one end;The indicator board is provided with scale, and the pointer leads to Hinge is crossed to be connected with indicator board.
  8. 8. the checking acceleration of gravity according to claim 6 testing stand unrelated with mass of object, it is characterised in that:Two water The indicator board of flat detection module is mutually perpendicular to and and horizontal plane.
  9. 9. the checking acceleration of gravity according to claim 6 testing stand unrelated with mass of object, it is characterised in that:It is described Horizontal plane detecting device 1 includes two level detecting modules being arranged in a mutually vertical manner in Detecting data body (1) upper surface, institute The upper surface for stating rolling frame (3) is provided with sliding rail.
  10. 10. the checking acceleration of gravity according to claim 1 testing stand unrelated with mass of object, it is characterised in that:Most The display module being connected with timing module on its place rolling frame (3) by wire is additionally provided with whole baffle plate (9).
CN201710603155.8A 2017-07-22 2017-07-22 A kind of testing stand for verifying that acceleration of gravity is unrelated with mass of object CN107437357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710603155.8A CN107437357A (en) 2017-07-22 2017-07-22 A kind of testing stand for verifying that acceleration of gravity is unrelated with mass of object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710603155.8A CN107437357A (en) 2017-07-22 2017-07-22 A kind of testing stand for verifying that acceleration of gravity is unrelated with mass of object

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Publication Number Publication Date
CN107437357A true CN107437357A (en) 2017-12-05

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CN201710603155.8A CN107437357A (en) 2017-07-22 2017-07-22 A kind of testing stand for verifying that acceleration of gravity is unrelated with mass of object

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693687A (en) * 1986-03-14 1987-09-15 Hwang Ming Chuen Apparatus for determining the acceleration of a moving object under gravity
CN2741000Y (en) * 2004-11-04 2005-11-16 唐招果 Horizontal measuring device of arbitrary angle
CN201530227U (en) * 2009-06-16 2010-07-21 绿友机械集团股份有限公司 Device for measuring angles and capable of achieving functions of straight ruler
CN203615931U (en) * 2013-11-06 2014-05-28 中国核工业华兴建设有限公司 Balance detection device for component hoisting
CN205920660U (en) * 2016-06-08 2017-02-01 陈嘉俊 Physics acceleration of gravity experimental device
CN206259091U (en) * 2016-12-06 2017-06-16 顾梦涵 A kind of Physical Experiment dolly and slide rail

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693687A (en) * 1986-03-14 1987-09-15 Hwang Ming Chuen Apparatus for determining the acceleration of a moving object under gravity
CN2741000Y (en) * 2004-11-04 2005-11-16 唐招果 Horizontal measuring device of arbitrary angle
CN201530227U (en) * 2009-06-16 2010-07-21 绿友机械集团股份有限公司 Device for measuring angles and capable of achieving functions of straight ruler
CN203615931U (en) * 2013-11-06 2014-05-28 中国核工业华兴建设有限公司 Balance detection device for component hoisting
CN205920660U (en) * 2016-06-08 2017-02-01 陈嘉俊 Physics acceleration of gravity experimental device
CN206259091U (en) * 2016-12-06 2017-06-16 顾梦涵 A kind of Physical Experiment dolly and slide rail

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