Measurement demonstrator of inherent frequency
A natural frequency, demonstrator technology, applied in the field of teaching aids
Pending Publication Date: 2015-06-03
邬博宇
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, how to witness that an object has a natural frequency? So far, there is no commercially available instrument for demonstration in teaching, so I feel questioned and confused. Therefore, it is necessary to invent a natural frequency demonstrator to fill the gap in teaching so that students can get perceptual cognition
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] The base plate 1 of the present invention is respectively fixed with a cylindrical transparent glass container 2, a bracket for placing the speaker 4, and a water storage tank frame 13 for placing the water storage tank 12, and the glass container 2 and the water storage tank 12 are respectively placed on two sides of the bracket of the speaker. On the side, the support is composed of a triangular column (two parallel columns 6 and a single column 7), the top of the column is fixed with a supporting plate 3, the supporting plate 3 is placed above the glass container 2, and the supporting plate 3 is provided with The through hole for placing the loudspeaker 4, in order to prevent the loudspeaker 4 from shaking, a gasket is provided at the through hole, the through hole corresponds to the opening of the glass container 2, the loudspeaker is connected with the audio signal generator, and the audio signal generator Connected to the power supply, the decibel meter 4 is arrang...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a measurement demonstrator of inherent frequency, and belongs to teaching tools. According to the measurement demonstrator disclosed by the invention, a cylindrical glass container is fixedly mounted on a bottom plate, a dividing ruler and reference lines of water amount are arranged on the wall of the cylindrical glass container, a water inlet is formed in the lower part of the glass container, the water inlet is connected with the water outlet of a water storage tank through a water injection pipe, and the water storage tank is connected with a water pump through a pipeline; a flow separating opening is formed in the water injection pipe, and an injection separating pipe is connected to the flow separating opening; a loudspeaker is arranged above the glass container, the loudspeaker is connected with an audio signal generator, a decibel meter is arranged on the glass container close to the loudspeaker, and the audio signal generator is connected with a power supply. According to the measurement demonstrator disclosed by the invention, water is injected from the lower part of the glass container, so that the phenomenon that when the water is injected from the upper part of the glass container, the water surface vibrates is avoided; the valid measurement volume of the container is changed through water injection, so that the inherent frequency is further changed. Through the adoption of the measurement demonstrator disclosed by the invention, the inherent frequency of an object can be demonstrated and measured in teaching; the minimum incentive intensity of resonance, and the relation between the size of volume and the inherent frequency can be measured and demonstrated in teaching.
Description
technical field [0001] The invention relates to a natural frequency measurement demonstrator, belonging to teaching tools. Background technique [0002] Any object has a natural frequency, which is determined by its material, structure, size, shape and other factors. The natural frequency is an inherent physical characteristic of the object itself. When an object is driven by a certain frequency, it can cause vibration and make the amplitude reach the maximum value. This frequency is the natural frequency of the object. However, how to witness that an object has a natural frequency? So far, there is no commercially available instrument for demonstration in teaching, so it is questioned and confused. Therefore, it is necessary to invent a natural frequency demonstrator to fill the gap in teaching so that students can get cognition perceptually. [0003] The natural frequency has a wide application value in production practice. For example, a building close to a railway will...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G09B23/14
CPCG09B23/14
Inventor 邬博宇
Owner 邬博宇