Coriolis acceleration demonstrator

Abstract

The invention provides a coriolis acceleration demonstration instrument and relates to an acceleration demonstration instrument. The coriolis acceleration demonstration instrument is provided with a drive unit and a demonstration unit, wherein the drive unit is provided with a lower electromotor, a transmission shaft bevel gear, a lower electromotor bevel gear, a transmission shaft spur gear, a center shaft spur gear, a transmission shaft, a center shaft, a cross-shaped gear, a turntable cover, a turntable and a base; the demonstration unit is provided with an upper electromotor, a turntable cover, a turntable, a standard gear, a standard rack, a piston, a bolt, a ball feeding device, a catapulting device, a switch base and a touch wall. The coriolis acceleration demonstration instrument has the benefits that under the situation that each system normally runs, a small ball is popped up from the catapulting device and hits different positions of the touch wall according to different rotating speeds, and a lamp on the corresponding touch wall is lightened, so that the effect of an object under the action of coriolis force is embodied, that is, the effect of the coriolis acceleration on physical motion is demonstrated; not only is the weight of an experimental instrument reduced, and is the limitation on the using range reduced, but also the continuous effect of the coriolis acceleration on a mobile object as well as a motion track can be more intuitively observed.

Description

Technical field [0001] The invention relates to an acceleration demonstration instrument, in particular to a Coriolis acceleration demonstration instrument when an object is subjected to Coriolis force in a rotating non-inertial system. Background technique [0002] According to theoretical mechanics, the motion of an object in a rotating non-inertial frame will be affected by Coriolis force, and its motion will be affected by Coriolis acceleration. Existing "Coriolis acceleration" demonstrators are usually divided into belt type and fluid type according to the type of moving objects, which are more complicated and not easy to observe. [0003] Chinese patent CN102129802A discloses a three-dimensional mechanical belt-type Coriolis acceleration tester, which includes an implicated moving part, a relative moving part, a frame and an electrical part; it is composed of a cylindrical pulley, a pulley shaft, a double ring frame and other parts; Beneficial effects: make the relative moti...

AI Technical Summary

Problems solved by technology

However, most of the existing Coriolis acceleration demonstration instruments use belts or fluids as demonstration props, and fluid demonstration instruments need to use plastic pipes, faucets and other equipment (Levi, F.A., A New Look for Coriolis, Physics Teacher, v26 n8 p508-09 Nov 1988) , extremely inconvenient when doing experiments in class

And the existing Coriolis acceleration (or inertial force) experiment instrument is mainly planar, that is, relative motion and implicated motion are all in one plane

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