Parallelogram law demonstrating instrument

A parallelogram and demonstration instrument technology, applied in the direction of instruments, educational tools, teaching models, etc., can solve the problems of difficulty in comprehension decomposition, inability to directly observe, discontinuity, etc., achieve high accuracy, good teaching and interpretation effect, reduce The effect of small experimental error

Pending Publication Date: 2016-08-17
HENAN NORMAL UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Decomposition force is to better solve the calculation of some forces that cannot be directly solved. This original intention brings certain difficulties to the decomposition of students' comprehension. They cannot be directly imagined or observed directly. Continuity is not conducive to in-depth study of basic physical knowledge, and the advancement of modern technology has brought the possibility of direct demonstration of the decomposition and synthesis of forces

Method used

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  • Parallelogram law demonstrating instrument

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Embodiment Construction

[0008] The specific content of the present invention will be described in detail in conjunction with the accompanying drawings. Parallelogram law demonstration instrument, including a base plate 1 and a vertical plate 2 fixed on one side of the base plate 1, the upper part of the base plate 1 is provided with a placement groove 4 for placing a digital display angle ruler 3, and the left and right sides of the base plate 1 are provided with a level ruler 5 , the bottom of the base plate 1 is provided with an adjustment leg 6, the top of the vertical plate 2 is fixed with a hanging plate 8 through a square clip 7, the hanging end of the S-type tension sensor 9 is fixed in the middle of the hanging plate 8, and the S-type tension sensor 9 passes through the line It is electrically connected with the display screen 10, and the measuring end of the S-shaped tension sensor 9 is connected with two ropes 11, and the ends of the two ropes 11 are respectively provided with hooks, and the...

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Abstract

The invention discloses a parallelogram law demonstrating instrument which comprises a bottom plate and a vertical plate fixed to one side of the bottom plate, wherein a drawing is fixed to the top of the vertical plate through a square clamp, a hanging end of an S-shaped tension sensor is fixed to the middle of a hanging plate, two ropes are connected to a measuring end of the S-shaped tension sensor, hangers are arranged at the tail ends of the two ropes respectively, a slide way with the extension direction consistent with that of the hanging plate is arranged in the middle of the vertical plate, two pulleys capable of moving left and right along the slide way are fixed onto the slide way through pin shafts, one end of each pin shaft penetrates the vertical plate and is locked by a nut, the two ropes are wound on the pulleys respectively, and weights are arranged on the hangers at the tail ends of the ropes. The parallelogram law demonstrating instrument has the advantages of convenience in use, novel structure and high accuracy.

Description

technical field [0001] The invention belongs to the technical field of practical teaching aids for physics teaching, and in particular relates to a demonstration instrument for the law of parallelogram used in middle school physics teaching. Background technique [0002] In the part about the decomposition and synthesis of force in the basic knowledge of high school physics, ordinary textbooks generally use the decomposition method of XY axis to explain the calculation of component force and resultant force. Decomposition force is to better solve the calculation of some forces that cannot be directly solved. This original intention brings certain difficulties to the decomposition of students' comprehension. They cannot be directly imagined or observed directly. Continuity is not conducive to in-depth study of basic physical knowledge, and the advancement of modern technology has brought the possibility of directly demonstrating the decomposition and synthesis of forces. Co...

Claims

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Application Information

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IPC IPC(8): G09B23/10
CPCG09B23/10
Inventor 张计才杨溢张瑞港毕淑美崔起帆
Owner HENAN NORMAL UNIV
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