Device for demonstrating that sound changes shape of water stream
A demonstration device and water flow technology, applied in the field of teaching instruments, can solve the problems of unintuitive abstraction, large investment in oscilloscopes, unfavorable promotion and utilization, etc., and achieve the effect of intuitive and vivid demonstration effect.
Inactive Publication Date: 2017-07-25
CHANGYI CHUANGTONG ELECTRONICS TECH CO LTD
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Problems solved by technology
In the actual exploration process, listening with ears is too abstract and unintuitive; testing with an oscilloscope requires a large investment in the purchase of an oscilloscope, and the use and adjustment of the oscilloscope is too complicated, which is not conducive to popularization and utilization
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[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0017] see Figure 1-4 , the present invention provides a technical solution: a demonstration device for changing the shape of water flow by sound, including a box body 1, a frequency generator 5, a speaker 6, a display screen 4, a power supply 10, a switch 2, a frequency adjustment knob 3, a water outlet pipe 8, an inlet Water pipe 12, ball valve 11, a front panel 7 is fixed on the box body 1, the front panel 7 is a metal plate with ...
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The invention discloses a device for demonstrating that sound changes the shape of a water stream. The device comprises a box body, a frequency generator, a horn, a display screen, a power supply, a switch, a frequency adjustment knob, a water outlet pipe, a water inlet pipe and a ball valve. A front panel is fixed to the box body and is made of a metal plate having a thickness of 0.5 to 3 mm. The horn is fixed to the front panel. The water outlet pipe is fixed to the front panel by a fixing portion. The horn, the frequency generator, the frequency adjustment knob, the display screen, the switch and the power supply are electrically connected. The water outlet pipe is connected with the water inlet pipe provided with the ball valve. Compared with the prior art, the device is visualized in demonstration effect, can demonstrate the change of water stream by changing the sound frequency, and fully mobilize the interest of students to explore science.
Description
technical field [0001] The invention relates to a teaching instrument, in particular to a demonstration device for changing the shape of water flow by audio frequency. Background technique [0002] In scientific exploration experiments, sounds of different frequencies are generally heard by ear, and then an oscilloscope can be used to detect their differences. In the actual exploration process, listening with ears is too abstract and unintuitive; using an oscilloscope to detect requires a large investment in purchasing an oscilloscope, and the use and adjustment of an oscilloscope are too complicated, which is not conducive to promotion and utilization. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a demonstration device for changing the shape of water flow by sound, so as to solve the problems raised in the above-mentioned background art. [0004] In order to achieve the above purpose, the present invention provides a demonstration ...
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IPC IPC(8): G09B23/14
CPCG09B23/14
Inventor 林辉玉
Owner CHANGYI CHUANGTONG ELECTRONICS TECH CO LTD