High-sensitivity electronic weighing type Young modulus measuring instrument

Abstract

The invention relates to the technical field of physical experiments, and particularly relates to a high-sensitivity electronic weighing type Young modulus measuring instrument. The high-sensitivity electronic weighing type Young modulus measuring instrument comprises a support, a steel wire to be measured, weights, a weight seat, an overflow mouth, a weigh bridge, a beaker, an electronic balanceand an experiment table, wherein the electronic balance is an electronic precision balance with the least reading of 0.1 mg; the beaker is placed on the electronic balance, and the upper opening of the beaker is located right below the lower opening of the overflow mouth; and the lower end of the steel wire to be measured is fixedly connected with the weight seat, the lower half part of the weight seat is located in a red liquid in the liquid storage cylinder, the diameter of the weight seat is smaller than the diameter of the liquid storage cylinder, and the weights are placed on the upper surface of the weight seat. All measured data can be directly read through naked eyes without using telescopes and other devices during the measurement process. Compared with the prior art, the high-sensitivity electronic weighing type Young modulus measuring instrument has easy and convenient reading.

Description

technical field [0001] The invention relates to the technical field of physical experiments, in particular to a high-sensitivity electronic weighing type Young's modulus measuring instrument. Background technique [0002] Young's modulus is an important physical parameter reflecting the mechanical properties of materials. At present, the known Young's modulus measuring instruments all adopt the hanging type, also known as the hanging type. The suspended Young's modulus measuring instrument adopts the principle of optical levers to amplify the tiny elongation of the metal wire through mirror optical levers, and observe it through the telescope and scale placed in the distance. But in the actual operation process, it is not easy to find the scale image reflected by the optical lever plane mirror in the telescope, and the experimenter often needs to spend a lot of time to adjust the instrument. In addition, there is a certain distance between the telescope and the Young's mod...

AI Technical Summary

Problems solved by technology

But in the actual operation process, it is not easy to find the scale image reflected by the optical lever plane mirror in the telescope, and the experimenter often needs to spend a lot of time to adjust the instrument

In addition, there is a certain distance between the telescope and the Young's modulus meter. During the operation, one person needs to increase or decrease the weight at the instrument, another person observes and records data at the telescope, or one person runs back and forth between the instrument and the telescope, so it is impossible to Perform experimental measurements independently and conveniently

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