Steel wire Young modulus tester improvement device

A technology of Young's modulus and experimental instrument, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of smashing and injuring classmates, the meter stick cannot be tightly attached to the chuck, and the effective length error of measuring steel wire, etc., to achieve the goal of protecting safety Effect

Inactive Publication Date: 2019-09-10
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the experiment, the original length of the steel wire refers to the distance between the upper chuck and the lower chuck of the fixed steel wire in the Young's modulus tester, but because there are two larger platforms between the two chucks, the meter ruler Cannot fit snugly against the collet, which introduces large errors when measuring the effective length of the wire
In order to increase or decrease the weight, the weight used in the experiment has a gap, so the weight added to the weight plate is easy to fall off, hurting the experimenter or the surrounding students

Method used

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  • Steel wire Young modulus tester improvement device
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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] exist figure 1 Align the end of the upper fixed chuck (1) with the zero scale line in the scale line (2), fix the upper fixed chuck, and the anchor screw (6) passes through the hole (11) on the bottom of the rectangular plastic box (10) , the rectangular plastic box (10) is filled with sponges. During the experiment, adjust the top surface of the lower chuck (7) to be flush with the upper bottom surface of the measuring platform (8). The effective length of the steel wire is the scale value of the scale line (2) corresponding to the measuring platform (8). In the rectangular plastic box (10), the ground screw (6) of the experimental instrument passes through the hole (11) on the bottom surface of the rectangular plastic box (10) and is in direct contact with the ground, even if the weight (4) passes through the weight gap (9) from If the weight tray (5) falls off, it will not directly fall on the ground and injure the experimenter.

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Abstract

The invention discloses a steel wire Young modulus tester improvement device, and aims at correctly measuring the effective lengths of the steel wires in Young modulus tests and preventing the testersfrom being crushed by the weights. The technical scheme is that scales are marked on steel tube brackets on both sides of a steel wire Young modulus tester, the tail end of an upper retaining clip isaligned with zero marks on the steel tube brackets, a rectangular plastic box filled with sponge is designed, three holes are formed in the bottom surface of the plastic box, and foundation bolts ofthe tester pass through the holes in the bottom surfaces of the rectangular box to directly contact the ground.

Description

technical field [0001] The invention is used in the field of measuring the steel wire diameter by a steel wire Young's modulus tester. Background technique [0002] Determination of Young's modulus of steel wire by stretching is a traditional physical experiment, which plays an important role in cultivating students' experimental skills in terms of instrument adjustment and use and experimental data processing. In the experiment, the original length of the steel wire refers to the distance between the upper chuck and the lower chuck of the fixed steel wire in the Young's modulus tester, but because there are two larger platforms between the two chucks, the meter ruler It cannot be snug against the collet, which will introduce a large error when measuring the effective length of the wire. In order to increase or decrease the weight, the weight used in the experiment has a gap, so the weight added to the weight plate is easy to fall off, hurting the experimenter or the surrou...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01N3/14
CPCG01N3/14G01N2203/0017G01N2203/0075G01N2203/0098G01N2203/028G01N2203/0682
Inventor郭华忠梁小冲
OwnerSICHUAN UNIV