Quick Answer: The Young’s Modulus Apparatus (Vernier Type) is a Searle’s pattern apparatus with two frames, one on the test wire and one on a reference wire, read with a vernier to 0.1 mm against a 1 mm main scale.
Last updated: October 2026
Key Features
Searle’s pattern, vernier type
Main scale of 1 mm pitch with vernier reading to 0.1 mm
Reference wire frame cancels the effect of temperature changes
Split chucks anchor the wires
Brass scales on steel frames, with levelling screws
Technical Specifications
Specification
Value
Pattern
Searle’s, vernier type
Reading
Vernier 0.1 mm; main scale 1 mm pitch
Frames
Cast metal, steel parts, levelling screws
Scales
Brass
Wire clamping
Split chucks
Compensation
Reference wire frame
About This Product
Two wires hang side by side from the same support: one is loaded and stretches, the other carries a fixed load and acts as the reference. The vernier reads the difference in their lengths for each load, so sagging of the support or expansion with room temperature does not affect the result, and Young’s modulus is found from the load-extension graph. Laboratories and colleges in Uruguay, Jamaica, Saudi Arabia, Bhutan and Burundi can buy the Young's Modulus Apparatus (Vernier Type) through an export order.
Frequently Asked Questions
Why does the Young’s Modulus Apparatus (Vernier Type) use two wires?
The second wire is a reference. Because the vernier reads the difference between the two, temperature changes affect both equally and do not upset the extension reading.
