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Physical mechanical energy power conservation test device

A technology of physical machinery and experimental devices, applied in educational appliances, instruments, teaching models, etc., can solve the problems of abstract inconvenient understanding and memory, and cannot rule out the influence of accidental factors.

Inactive Publication Date: 2020-03-24
程一航
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the law is too abstract and inconvenient to understand and remember, so it is necessary to design a device to demonstrate the law, so that it is easy for users to understand and remember
[0004] Chinese patent (notification number: CN206819614U) discloses a high school physical mechanical energy conservation experimental device, including a semicircular transparent vacuum test box, a semicircular hanging ring is arranged on the top of the semicircular transparent vacuum test box, and the semicircular transparent vacuum test box is provided with a semicircular hanging ring. The cycloid is connected to the cycloid by the shaped hanging ring, and the bottom end of the cycloid is connected to the magnetic steel ball; the electromagnet device is fixedly installed on the right side wall of the semicircular transparent vacuum test chamber; the right side wall of the semicircular transparent vacuum test chamber is An arc-shaped track is fixedly arranged along the inner wall of the semi-circular transparent vacuum test chamber under the electromagnet device, and a photoelectric gate speed measuring device is arranged on the arc-shaped track; an exhaust pipe is connected to the left side of the semi-circular transparent vacuum test chamber, and the The exhaust pipe is provided with a valve; the back of the semicircular transparent vacuum test box is provided with a sealed door, and the lower end of the sealed door is connected with the semicircular transparent vacuum test box through a hinge. The height of each fall of the magnetic steel ball is fixed, resulting in only one set of data for the test results of the device, and the influence of accidental factors cannot be ruled out, so the device needs to be improved

Method used

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  • Physical mechanical energy power conservation test device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] see figure 1 , figure 2 , Figure 4 and Figure 5 , a test device for the conservation of physical mechanical energy and dynamics, comprising a base plate 1, the left end of the base plate 1 is fixedly connected to a column 3, a speed measuring device 2 is arranged in the middle of the base plate 1, and the speed measuring device 2 adopts a gate type speed measuring device, and only a magnetic steel ball 11 is required to pass through the speed measuring device 2, the speed of the magnetic steel ball 11 can be measured, and the speed measuring device 2 is located directly below the fixed cylinder 5, so as to ensure that the magnetic steel ball 11 passes through the speed measuring device 2 when it is at the lowest point of motion. At this time, the gravitational potential energy of the magnetic steel ball 11 Completely converted into dynamic potential energy; the top of the column 3 is fixedly connected to the left end of the beam 4, the middle part of the beam 4 is ...

Embodiment 2

[0030] see Figure 1-3 , the other content of this embodiment is the same as that of Embodiment 1, the difference is that: the electromagnet device 10 is U-shaped, the upper part of the electromagnet device 10 is provided with a striking sleeve 9, and the upper end of the striking sleeve 9 is screwed to the second One jacking bolt 12, the lower part of the first jacking bolt 12 rotates and connects to the slider 13, the lower end of the slider 13 is fixedly connected to the spring 14, the lower end of the spring 14 is fixedly connected to the plug 15, the slider 13 is slidably connected to the hitting sleeve 9, and the plug 15 slides When the hitting sleeve 9 is connected and the slide block 13 is at the top, the plug 15 does not contact the magnetic steel ball 11. Constantly adjusting the falling height of the magnetic steel ball 11 can adjust the initial gravitational potential energy of the magnetic steel ball 11. In some cases, the magnetic steel ball 11 needs to have a ce...

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Abstract

The invention relates to a test device, and discloses a physical mechanical energy power conservation test device. The physical mechanical energy power conservation test device includes a bottom plate, the left end of the bottom plate is fixedly connected with a column; a speed measuring device is arranged in the middle of the bottom plate, the top of the column is fixedly connected with the leftend of the crossbeam; a fixing cylinder is arranged in the middle of the crossbeam, a through hole is formed in the fixing cylinder, a connecting rope is arranged in the through hole, the lower end ofthe connecting rope is connected with a magnetic steel ball, the right side wall of the fixing cylinder is in threaded connection with a second puller bolt, and the left end of the second puller boltis rotationally connected with a clamping plate; a guide rod is arranged on the right side of the lower surface of the crossbeam and slidably connected with a sliding plate. In the mechanical energyconservation test device, the sliding plate is arranged to drive the electromagnet device to move up and down, so that the falling height of the magnetic steel ball is changed, the gravitational potential energy of the magnetic steel ball is changed, the spring is arranged to provide initial kinetic energy for the magnetic steel ball, parameters of the whole test are richer and more accord with the actual situation, and meanwhile the physical mechanical energy power conservation test device is easy to operate, and is suitable for application and popularization.

Description

technical field [0001] The invention relates to a test device, in particular to a test device for the conservation of physical mechanical energy and power. Background technique [0002] The content of the law of conservation of mechanical energy is that in an object system with only gravity or elastic force doing work (or under the action of no other external force), the kinetic energy and potential energy (including gravitational potential energy and elastic potential energy) of the object system are mutually transformed, but the total energy of mechanical energy constant. This law is called the law of conservation of mechanical energy. [0003] However, the law is too abstract and inconvenient to understand and remember, so it is necessary to design a device to demonstrate the law, so as to facilitate the user's understanding and memory. [0004] Chinese patent (notification number: CN206819614U) discloses a high school physical mechanical energy conservation experimenta...

Claims

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Application Information

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IPC IPC(8): G09B23/08
CPCG09B23/08
Inventor 程一航
Owner 程一航