Note: No part of this website may be reproduced, stored in a retrieval, or transmitted in any form or by any mean

Our Products

Follow Us

  • Logo Twitter
  • Logo Facebook
  • Logo Google
 
Home » Physics Laboratory Instruments   »   Young's Modulus Apparatus
Young's Modulus Apparatus

OBJECTIVE: DETERMINATION of Young’s Modulus and Ultrasonic Velocity in solids like metals/quartz/glass

 
Young's Modulus Apparatus Young's Modulus Apparatus
Code: YMA-01

Young's Modulus Apparatus   

Non-Destructive Testing of Material is an important part of Engineering Education as it gives information without deformation in the shape and size of the material. One of the NDT techniques, Piezoelectric Technique is widely used for the measurement of composition dependent properties such as ultrasonic velocity, compressibility, elastic constant, Young’s modulus and Bulk modulus. Its suitability for metals, plastics, polymers and crystals etc makes it versatile tool for Engineering Physics, Material Science and Polymer Science. This low cost NDT apparatus is being used in several I.I.T.s/Universities/Engineering Colleges for laboratory experiments and Research work.

 

In this technique the specimen is cemented to a quartz rod of identical cross section and resonant frequency (fc) of the composite system is determined using the apparatus. The resonant frequency of the quartz rod (fq) is also determined. From the knowledge of fq, fc and the masses of the quartz (mq) and the specimen (ms), the resonant frequency of the specimen fs is evaluated using the relation

Using the value of , the length of the specimen and the density of the specimen, the velocity of the ultrasonic waves in the specimen () and compressibility can be calculated using relations

where p is density of specimen .
Young's Modulus of specimen is calculated using relation
INSTRUMENT: It consists of Piezoelectric Oscillator, power supply, quartz rod, holder, quartz rod with sample, connecting cables and R.F. meter.