CN203013063U

CN203013063U - Combined swinging experimental instrument

Info

Publication number: CN203013063U
Application number: CN 201220550019
Authority: CN
Inventors: 毛爱华; 毛春生; 李国峰; 吕海龙
Original assignee: Inner Mongolia University of Science and Technology
Current assignee: Inner Mongolia University of Science and Technology
Priority date: 2012-10-14
Filing date: 2012-10-14
Publication date: 2013-06-19
Anticipated expiration: 2022-10-14

Abstract

The utility model relates to a combined swinging experimental instrument, belonging to an experimental instrument. The combined swinging experimental instrument comprises a three-wire-pendulum upper rotating disk. The surface of the upper rotating disk is provided with original holes with an interval of 120 degrees, wherein one more small hole is arranged at a symmetrical position of an extension line of any original hole passing an axis, the above two holes are respectively tied with suspension wires, and lower ends of the suspension wires are connected with a metal rod to form two wire pendulums. According to the combined swinging experimental instrument, an existing three-wire-pendulum experimental instrument is improved, four experimental instruments are combined ingeniously, and doing a plurality of experimental content and various measurements with one experimental instrument can be realized.

Description

The Combined swinging experiment instrument

Technical field:

The utility model relates to a kind of Combined swinging experiment instrument, belongs to experimental apparatus.

Technical background:

The three-line pendulum method is measured object rotation inertia, two string pendulum methods mensuration object rotation inertias, Inertia Based on Torsion Pendulum Method measures object rotation inertia and the research of simple harmonic motion rule is all large one general material resources Classic Experiments.Hour be simple harmonic oscillation at pivot angle, vibration principle is identical, and experiment equipment is basic identical, function singleness.

Summary of the invention:

The purpose of this utility model is to provide an a kind of experiment instrument to realize the Combined swinging experiment instrument that multiple swing is measured.Technical solution:

The utility model comprises the three-line pendulum top rotary table, be respectively arranged with archioporus every 120 ° of positions on the top rotary table card, wherein any one original aperture arranges a hole again by the symmetric position place of the extended line in axle center, be respectively that suspension wire is arranged on above-mentioned two holes, the suspension wire lower end is connected with metal bar, consists of two string pendulums.

Described metal bar is long is L; R is the distance that on metal bar, certain point arrives excellent central point,

The place,

The place,

The place is equipped with respectively pit, can place the different prill of quality in pit.

Described top rotary table lower surface center is equipped with configuration block, and on configuration block, with snib, snib and tinsel upper end are fixed, and the tinsel lower end hangs card line disk, and formation is rocked.

On described snib, tinsel is substituted by suspension wire, and suspension wire lower end suspension one prill consists of single pendulum.

The utility model improves at existing Moment of Inertia Using Three-line Pendulum Method instrument, and is existing with four kinds of ingenious combining of experimental apparatus, can realize that an experiment instrument can do a plurality of experiment contents and multiple measurement.

The beneficial effects of the utility model are,

1. can realize two string pendulum methods, three-line pendulum method mensuration object rotation inertia, and the research of rotation period rule.

2. can realize Inertia Based on Torsion Pendulum Method mensuration axisymmetric body moment of inertia, and the research of rotation period rule.

3. can realize Measurement of Gravity Acceleration by Simple Pendulum and research simple harmonic motion rule

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model top rotary table floor map;

Fig. 3 is Fig. 2 diagrammatic cross-section;

Fig. 4 is the utility model three-line pendulum work schematic diagram;

Fig. 5 is utility model two string pendulum work schematic diagram;

Fig. 6 is that utility model is rocked the work schematic diagram;

Fig. 7 is utility model single pendulum work schematic diagram.

Embodiment:

Embodiment 1

Referring to Fig. 4, the utility model comprises support 1, top rotary table 2, suspension wire 7, lower disc 10, base 13, and top rotary table is provided with aperture 3, aperture 4, aperture 5, the formation three-line pendulum every 120 °.

The three-line pendulum method is measured disk and the annulus inertia that sways.

Embodiment 2

Referring to Fig. 5, the utility model comprises support 1, top rotary table 2, suspension wire 7, tinsel 8, card line disk 9, lower disc 10, spheroid 11, Metallic rod 12, base 13, swing ball 14.Top rotary table locates to be provided with respectively the first archioporus 3, the second archioporus 4, the 3rd archioporus 5 every 120 °, make a call to again a hole 6 at Wuyuan beginning aperture 5 by the symmetric position place on the extended line in axle center, be respectively that suspension wire is arranged on Wuyuan beginning aperture 5 and hole 6, the suspension wire lower end is connected with metal bar 12, consists of two string pendulums.Metal bar 12 is long is L, and r is distance that on metal bar 12, certain point arrives excellent central point,

The place,

The place,

Two string pendulums can be measured the moment of inertia of Metallic rod 12, the checking parallel axis theorem; Research bead quality difference and mass distribution be cycle variation law simultaneously not.

Embodiment 3

Referring to Fig. 6, the utility model comprises support 1, top rotary table 2, tinsel 8, card line disk 9, base 13.Top rotary table lower surface center is equipped with configuration block 15, and on configuration block 15, with snib 16, tinsel 8 upper ends and snib 16 are fixing, and the lower end hangs card line disk 9, and formation is rocked.

The shear modulus that formula can calculate moment of inertia and the steel wire of disk or annulus is rocked in utilization.

Embodiment 4

Referring to Fig. 7, the utility model comprises support 1, top rotary table 2, base 13, swing ball 14.Top rotary table lower surface center is equipped with configuration block 15, on it with snib 16, folder one suspension wire on snib 16, the suspension wire lower end hangs a prill 14, consists of single pendulum.

Utilize the single pendulum formula can calculate acceleration of gravity and research simple harmonic motion rule.

Claims

1. Combined swinging experiment instrument, comprise three-line pendulum top rotary table (2), be respectively arranged with archioporus every 120 ° of positions on the top rotary table card, it is characterized in that, wherein any one original aperture arranges a hole (6) again by the symmetric position place of the extended line in axle center, be respectively that suspension wire is arranged on above-mentioned two holes, the suspension wire lower end is connected with metal bar, consists of two string pendulums.

2. Combined swinging experiment instrument according to claim 1, is characterized in that, metal bar is long is L; R is the distance that on metal bar, certain point arrives excellent central point, The place,

The place, The place is equipped with respectively pit, can place the different prill of quality in pit.

3. Combined swinging experiment instrument according to claim 1, it is characterized in that, top rotary table lower surface center is equipped with configuration block (15), configuration block (15) is upper with snib (16), snib (16) is fixed with tinsel (8) upper end, tinsel (8) lower end hangs card line disk (9), and formation is rocked.

4. Combined swinging experiment instrument according to claim 3, is characterized in that, the upper tinsel (8) of snib (16) is substituted by suspension wire, and suspension wire lower end suspension one prill (14) consists of single pendulum.