Pyrometer Superior Pattern Linear Expansion Apparatus with Aluminium, Brass & Iron Bars

About Pyrometer Superior Pattern Linear Expansion Apparatus with Aluminium, Brass & Iron Bars

Pyrometer Superior Pattern is a compact and effective apparatus designed to demonstrate the coefficient of linear expansion of solids due to heat. Ideal for educational institutions and laboratory use, this apparatus helps visualize the thermal expansion behavior of different metals in a simple and reliable way.

The setup includes three metal expansion bars  Aluminium, Iron, and Brass (each 380 mm in length). Any one of the bars can be securely fixed to the upright support, with the free end resting on a pointer arm, which moves over a graduated scale (0 to 90) to show angular displacement due to expansion.

This design allows students to observe the principle of thermal expansion clearly and helps calculate the coefficient of linear expansion using basic trigonometric relationships.

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 Technical Specifications:

• Model: Pyrometer  Superior Pattern

• Expansion Bars:

  • 1 each of Aluminium, Brass, and Iron

  • Length: 380 mm

• Scale: Angular scale from 0 to 90

• Mounting:

  • One fixed upright to clamp rod

  • One free end resting on pivoted pointer

• Pointer: Sensitive metal pointer indicating displacement

• Base: Stable metallic base for firm placement

• Usage: To observe and calculate linear expansion of metals under heating

• Heating Source: Not included (can be used with Bunsen burner or water bath)

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Key Features:

• Simple, easy-to-use setup for quick demonstration

• Includes 3 different metal rods for comparative study

• Graduated angular scale for visible expansion measurement

• Ideal for classroom, physics lab, or training setups

• Compact design with superior material finish

Superior Design and Build Quality

Crafted with a heavy-duty base and precision clamping system, this apparatus assures stability during experiments. The stainless steel build resists corrosion, while the interchangeable rods (aluminium, brass, and iron) provide versatility for a range of demonstrations. Its silver finish gives it an elegant and professional look, suitable for any modern laboratory.


Accurate and Simple Measurements

Equipped with either a dial gauge or screw gauge, the apparatus enables highly precise measurements of metal expansion, accurate up to 0.01mm. The manual scale display is clear and easy to interpret, making results reliable and enhancing the learning experience for students.


Designed for Educational Versatility

This apparatus serves as a valuable educational tool, allowing comparative studies of different metals expansion coefficients. The straightforward bar replacement process encourages hands-on learning and facilitates repeatable, comparative experiments, making it ideal for physics classrooms in schools, colleges, or educational institutions.