CN87212669U

CN87212669U - Gravity type multi-functional vibration synthesizer

Info

Publication number: CN87212669U
Application number: CN 87212669
Authority: CN
Inventors: 陈祖骥
Original assignee: SHANDONG TEXTILE TECHNOLOGY COLLEGE
Current assignee: SHANDONG TEXTILE TECHNOLOGY COLLEGE
Priority date: 1987-09-16
Filing date: 1987-09-16
Publication date: 1988-06-22

Abstract

The utility model discloses a gravity type multi-functional vibration synthesizer. The diverse vibration synthesizer, which can show the direction of vibration, the frequency, the initial phase, etc., is composed of a pendulum and a small pendulum which are arranged on the support of the pendulums simultaneously. The lower end of the small pendulum is provided with a water sprayer in order to show the trajectory of the vibration and the synthesis visually. The utility model can be used in the demonstration of the physics teaching in the university and the middle school.

Description

Gravity type multi-functional vibration synthesizer

The utility model belongs to the teaching demonstration instrument

In university, in the physical teaching course in middle school, existing vibration composition demonstrating experiment, general employing moves through connecting rod to garden week and becomes straight-line oscillation, synthesizes then; This method structure is complicated, and cost is higher; Perhaps on a rocker, connect a funnel, draw with the mode of leaking sand and close the track of vibration with line; The track that this method shows can not be preserved, and adjusting is had any problem; Perhaps demonstrate with oscillograph, because of the more complicated price of oscillograph structure high, and the short time say unclear, so also not satisfactory.

It is clear that the purpose of this utility model provides a kind of physical concept, simple in structure, easy to operate, visual pattern, low-cost and multi-functional vibration composition demonstrating instrument.

Main points of the present utility model are to adopt and put on by adorning one on rocker, and form one by the mode of adorning a little pendulum and can perform direction of vibration, the vibration synthesizer of different vibrations such as frequency, first phase potential difference laying out greatly.In order to demonstrate vibration synthetic track and displacement time curve a perforated water spray has been installed in the lower end of little pendulum visual pattern.

Fig. 1 gravity type multifunction vibration synthesizer synoptic diagram

Fig. 2 perforated water spray synoptic diagram

Vibration synthesizer structural representation during Fig. 3 forced vibration

Embodiment shown in Figure 1 is that rocker (1) is gone up by auger point screw (4) and fixed a big balance staff (3), and big balance staff (3) is gone up and is fixed with one by adjustment screw (13) and puts on (6), puts on (6) and can do the y direction and swing; Fix a little balance staff (7) by conelet point screw (9) putting on (6) lower end, little balance staff (7) is gone up by adjusting screw (14) and is fixed with a little pendulum (10), little pendulum (10) can be y to swing by the drive of putting on (6), also can be X separately to swing.The effect of auger point screw (4) and conelet point screw (13).One, be to play supporting role; Two, be the frictional resistance that reduces its when swing.In order intuitively to stay the demonstration track, in little pendulum (10) lower end one perforated water spray (11) is housed, its perforated water spray is by cylinder body (15), plunger (16), cylinder bottom (17), spring (18), syringe needle (19), cylinder cap (20), control lever (21) is formed, pulling control lever (21) drives plunger (16) look water is sucked during demonstration, unclamps control lever (21) then, and the pressure by spring (18) passes through syringe needle (19) ejection slowly with look water.Movement locus under the various different situations of drawing (as lissajous figures etc.).Putting on balance bob (2) on (6) is balance when guaranteeing swing, and its rocker (1) can be gone up at pillar (5) and move, and weight (8) is used for performing forced vibration, resonance, coupled pendulums, mensuration and rotates slowly projects such as amount.

Embodiment shown in Figure 3 is a structural representation of the present invention when doing forced vibration and resonance.It being put on (6) with fixed bar (22) during demonstration fixes, not allowing to put on (6) is y and loads onto three simultaneously to swing on big balance staff (3) and put on (6) and the centre is put on extension one weight (8) of (6) lower end and the both sides is accommodated greatly and hung light pendulum (24) (25) three different in size and connect with bungee (23), weight (8) is also done swing along the light pendulum (25) (24) that y drives both sides to when swing, just can demonstrate out resonance effect when the height that changes weight makes the natural frequency of its vibration frequency and a certain light pendulum identical.

The utility model can be widely used in the physics teaching demonstration in university, middle school.

Claims

1, a kind of gravity type multifunction vibration synthesizer, by base [12], pillar [5], rocker [1] constitutes, it is characterized in that fixing a big balance staff [3] by auger point screw [4] on the rocker [1], fix one on the big balance staff [3] and put on [6], put on [6] lower end and fix a little pendulum [10], a perforated water spray [11] is fixed in little pendulum [10] lower end.

2, by the described gravity type multifunction vibration synthesizer of claim 1, it is characterized in that being fixed with on the described big balance staff ［ 3 ］ weight ［ 8 ］.

3, by the described gravity type multifunction vibration synthesizer of claim 1, it is characterized in that being fixed with on described the putting on ［ 6 ］ balance bob ［ 2 ］.

4, by the described gravity type multifunction vibration synthesizer of claim 1, it is characterized in that described perforated water spray ［ 11 ］ by cylinder body ［ 15 ］, plunger ［ 16 ］, cylinder bottom ［ 17 ］, spring ［ 18 ］, needle point ［ 19 ］, cylinder cap ［ 20 ］, control lever ［ 21 ］ is formed.

5,, it is characterized in that described little pendulum ［ 10 ］ is fixed on by conelet point screw ［ 9 ］ to put on ［ 6 ］ by the described gravity type multifunction vibration synthesizer of claim 1.