CN2634565Y

CN2634565Y - Centrafugal force integration test instrument

Info

Publication number: CN2634565Y
Application number: CN 03213697
Authority: CN
Inventors: 韩德君
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-19
Filing date: 2003-06-19
Publication date: 2004-08-18
Anticipated expiration: 2013-06-19

Abstract

A centrifugal integrated experimental instrument comprising a machine body provided with an electric motor in the under part, which is characterized in that a water filled flat flume and two oblique flumes are manufactured on the machine body. Wherein one of the oblique flumes is sunk with an iron ball and the other oblique flume is floated with a wooden ball. One end of the machine body is provided with a sound loop that is composed of a battery, a beeper and a centrifugal switch, the top cover of the flat flume is provided with a simulation ring, a supporting rod is fixed on the upper end of the simulation ring, and the lower end can move up and down along the supporting rod. The utility model is a typical integrated product of centrifugal effect; the five functions of which not only save the experimental instruments and time, but considering a teaching aid, the educational function is multi directional and double resulted. More particularly the change of round bucket of Newton design into a flat flume, which has greatly shortened the time of the experiment, as soon as the instrument rotates, the surface of the water takes a shape of concave and the bucket experiment of Newton is finished and which is convenient and swift and good observation effect.

Description

Centrifugal force integrated experimentation instrument

Technical field: the utility model the has been integrated experiment instrument of multiple typical centrifugal phenomenon belongs to instruments used for education.

Background technology: centrifugal force is the common phenomenon in science, education, production technology and the daily life.Newton had once designed famous " bucket experiment " with this phenomenon, and newton also courageously, successfully gives according to this phenomenon and sayed that the earth is an oblate spheroid, and this is two very famous in the history of science big examples.But traditional centrifugal phenomenon display instrument, single and each self-separation of the phenomenon of demonstration, experimental period is long, does not satisfy the needs in the teaching.Have, can bucket experiment relate to the problem that find absolute reference frame again, and this is once to be the focal issue of debating actively for a long time in community of physicists, philosophy circle.

Summary of the invention: the purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and provides a kind of except demonstrating above-mentioned two big examples simultaneously to people, also the integrated-type instrument of additional three demo functions.The one, demonstrate heavily rising, gently sinking; The 2nd, the demonstration Doppler effect; The 3rd, the demonstration centrifugal switch.For achieving the above object, the utility model adopts following technical proposals: centrifugal force integrated experimentation instrument, comprise body (1), motor (7) is installed in the bottom of body (1), its concrete structure is: be shaped on the flat tank (2) that is filled with water on the body (1), oblique tank (3) and (4), tiltedly sink in the tank (3) iron ball (11) is arranged, tiltedly floating wooden shot (12) in the tank (4), end at body (1) is provided with sound loop, sound loop is by battery (6), hummer (8), centrifugal switch (9) is formed, be covered with analog loop (5) on the flat tank (2), the upper end of analog loop (5) is fixed on the support bar (10); Its lower end can move up and down along support bar (10).

The utility model is the integrated product of multiple typical centrifugal effect, and its five kinds of functions that have have not only been saved experiment equipment and time, and as teaching aid, this integrated educational function own is multi-faceted, gets twice the result with half the effort.Especially the intrinsic round bucket of newton is changed into flat tank, experimental period has been shortened in this change widely, the firm rotation of instrument, and the water surface promptly is matrix, finishes newton's bucket experiment.Convenient and swift, observing effect good.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a fundamental diagram of the present utility model.

Embodiment:

With reference to Fig. 1,2, centrifugal force integrated experimentation instrument, comprise body 1, motor 7 is installed in the bottom of body 1, and its concrete structure is: be shaped on the flat tank 2 that is filled with water, oblique tank 3 and 4 on the body 1, tiltedly sink in the tank 3 iron ball 11 is arranged, tiltedly floating wooden shot 12 in the tank 4, be provided with sound loop at an end of body 1, sound loop is made up of battery 6, hummer 8, centrifugal switch 9, be covered with analog loop 5 on the flat tank 2, the upper end of analog loop 5 is fixed on the support bar 10; Its lower end can move up and down along support bar 10.

Principle of work: after motor 7 rotation, just can clearly show the water surface matrix, finish the experiment of newton's bucket.This instrument demonstration because from then become flat the earth be to simulate by the annulus of a good springiness, along with the rotation of instrument, this annulus can clearly become flat (diameter at the two poles of the earth, earth north and south is shorter 22 kilometers than equatorial diameter, be earth rotation due to).This instrument when rotated, sinking to water-bed iron ball originally can go up the water surface along oblique tank; The Craigengower Cricket of keeping afloat is originally fallen into the bottom along oblique tank, and this phenomenon is fully aware of with the centrifugal force demonstration.Doppler effect has important use in universe exploration, scientific experiment and in producing.This instrument when rotated, when being installed in sound source on the instrument and turning to the observer, the observer hears that tone obviously uprises; When sound source leaves the observer, the obvious step-down of the tone that the observer hears, this has just clearly demonstrated Doppler effect.The element of sounding and its power supply, switch all is placed on the instrument, and switch is centrifugal switch, and when instrument rotated, centrifugal switch was connected, and when the instrument stall, centrifugal switch two contacts separate (state of nature).This instrument has only when rotated, could show above-mentioned phenomenon, and instrument is installed on the varying-speed motor, and this motor speed is adjustable continuously, makes experimental phenomena not only obvious, and can arbitrarily control.

Claims

1, a kind of centrifugal force integrated experimentation instrument, comprise body (1), motor (7) is installed in the bottom of body (1), it is characterized in that: be shaped on the flat tank (2) that is filled with water, oblique tank (3) and (4) on the body (1), tiltedly sink in the tank (3) iron ball (11) is arranged, tiltedly floating wooden shot (12) in the tank (4), end at body (1) is provided with sound loop, sound loop is made up of battery (6), hummer (8), centrifugal switch (9), be covered with analog loop (5) on the flat tank (2), the upper end of analog loop (5) is fixed on the support bar (10); Its lower end can move up and down along support bar (10).