Expansion Apparatus

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Expansion Apparatus Specification

Temperature Range
Ambient to around 100C (boiling water)

Capacity
Single test (typically measures one rod or tube)

Accuracy
0.01 mm scale division (typical)

Frequency
N/A (not electrically operated)

Core Components
Base with scale, adjustable screws, support stands, expansion rod/tube, pointer, heating tube

Power Source
External heat source (e.g. Bunsen burner, hot water bath)

Measurement Range
0-30 mm (rod expansion length)

Automation Grade
Manual

Model No
Phys-Exp-Standard

Feature
Manual operation, easy reading pointer system, fixed or replaceable rods/tubes

Equipment Materials
Baseboard, rods/tubes (usually copper, iron or aluminum), metal scale, fixed and sliding brackets

Type
Expansion Apparatus for physics laboratory

Usage
Measurement of coefficient of linear expansion in rods/tubes

Display Type
Scale with pointer/manual reading

Dimension (L*W*H)
Approx. 60 x 7 x 10 cm

Weight
Approx. 1.5 - 2.5 kg

Heater Compatibility
Can be used with boiling tube or direct flame

Attachment Type
Knurled thumb screws

Pointer Material
Aluminum / steel

Packing Type
Thermocol box or custom packaging

Scale Reading Unit
Millimeter (mm)

Suitable For
School physics and engineering labs

Number of Test Rods Included
Typically 1 (expandable to 3 or more types: copper, iron, aluminum)

Rod Diameter
Approx. 5-8 mm

Mounting
Tabletop, anti-slip base

Maintenance
No lubrication needed, easy clean design

Rod Length
450-500 mm

Base Material
Powder-coated metal

About Expansion Apparatus

Comprising two cast-iron uprights, height 18 cm. linked by two nickel plated rods supporting on expansion bar, length 38 cm. fixed to one upright and resting on a friction pointer placed at the other. With scale reading 0 to 90 deg. With one each aluminium, brass and iron expansion bars.

Versatile and Educational Laboratory Instrument

The expansion apparatus is ideal for physics and engineering practicals, accommodating experiments with different metals. Its manual operation and accurate scale division (0.01 mm) enhance hands-on learning, allowing students to explore thermal expansion with reliable, easy-to-read results.

Robust Construction and User-Friendly Design

Built with a powder-coated metal base and equipped with knurled thumb screws for secure attachment, this apparatus offers robust stability. Its anti-slip base and straightforward assembly make it suitable for regular laboratory use, while its easy-clean features ensure maintenance is simple.

Adaptable to Multiple Experiment Setups

Compatible with external heat sources such as Bunsen burners or water baths, the apparatus can be deployed for a variety of thermal expansion demonstrations. The device supports rods of different diameters and is expandable to hold several rod types, broadening experimental possibilities.

FAQ's of Expansion Apparatus:

Q: How do I use the Expansion Apparatus for measuring rod expansion?

A: To measure rod expansion, secure your rod (copper, iron, or aluminum) using the knurled thumb screws, align the pointer on the millimeter scale, and apply heat via a boiling tube or direct flame. Read the expansion value from the pointer's displacement along the scale.

Q: What types of rods can be tested with this apparatus?

A: The apparatus includes one rod but can hold three or more of different materials, such as copper, iron, or aluminum. This flexibility allows users to compare the expansion properties of various metals.

Q: When should I use this device during my physics experiments?

A: Use the Expansion Apparatus during experiments requiring precise measurement of linear expansion in rods or tubes, usually when studying thermal properties of metals in physics and engineering curricula.

Q: Where is this apparatus typically used?

A: It is commonly found in school physics and engineering laboratories. Its tabletop, anti-slip design is tailored for safe and stable use on standard lab workbenches.

Q: What is the maintenance process for this expansion apparatus?

A: Maintenance is simple-no lubrication is needed, and the apparatus can be cleaned easily thanks to its powder-coated finish and accessible design. Ensure the rods and base are dry and debris-free after each use.

Q: What are the benefits of using this expansion apparatus over digital alternatives?

A: Manual operation promotes hands-on learning, fostering a deeper understanding of physical principles. The high-precision scale (0.01 mm) and robust build ensure repeatable results without complex calibration or electronic components.

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