Physics Lab Equipment

LEMI-12 Young's Modulus Apparatus - Hall Sensor Method

LEMI-12 Young's Modulus Apparatus - Hall Sensor Method

Features    

  • Hall micro-displacement sensing

  • Hall element

  • Simple structure and stable performance

  • High accuracy (error<3%)

  • Ideal demonstration system



Introduction 


Rigid materials, when subjected to specific stresses or forces, can undergo deformation—whether compressed, twisted, or stretched. For many materials, the restoring force that resists deformation and returns the material to its original shape is directly proportional to the extent of deformation. This relationship is defined by Young's Modulus (E), a constant that quantifies a material's stiffness, expressed as the ratio of stress to strain during tensile or compressive stress.   


The LEMI-12 Young's Modulus Apparatus is designed to investigate the deformation behavior of thin metal sheets under applied loads. The apparatus applies a small force (F) to the sheet, causing measurable deformation. A Hall-effect micro-displacement sensor precisely tracks this deformation, providing an output voltage directly proportional to the displacement.  


With this apparatus, users can explore foundational principles and perform hands-on experiments, including:  


1. Gaining insights into the principles, structure, properties, and applications of Hall-effect displacement sensors

2. Measuring the Young's Modulus of a copper specimen

3. Calibrating the Hall displacement sensor for accurate measurements

4. Determining the Young's Modulus of a malleable iron specimen


The included instruction manual offers everything you need for a successful lab experience:   

- Clear explanations of principles   

- Step-by-step procedural guides   

- Sample experimental results for reference   


Please click  Experimental Contents  to find more information about this apparatus. This apparatus is an excellent addition to any physics or engineering lab, helping students deepen their understanding of material properties with precision and ease.


Main Specifications

DescriptionSpecifications
Reading MicroscopeRange: 8 mm; resolution: 0.01 mm; magnification: 20X
Weights10.0 g and 20.0 g
Digital Multimeter3-1/2 digit; range: 0 ~ 2000 mV
SpecimensCopper and malleable cast-iron sheets
Relative Uncertainty of Measurement< 3%


Part List

DescriptionQty
Main Unit1
Stand Rack1
Reading Microscope1
Hall Sensor1
Cable1
Weights8 pcs (10 g), 2 pcs (20 g)
Manual1


 LEMI-12 Young's Modulus Apparatus - Hall Sensor Method.png

Schematic of system


  1. 1. Base line

  2. 2. Reading microscope

  3. 3. Support

  4. 4. Specimen

  5. 5. Lever

  6. 6. Magnet mount

  7. 7. Magnets

  8. 8. Adjustable holder

  9. 9. Weights

LEMI-12 Measurement of Young's Modulus-Hall Sensor Method-2.jpg

 

Hall sensor and magnets


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