Thermal Expansion Of Metal

Item Code: SK101

Principle and Working:

The Data Logger based Thermal Expansion Apparatus provides easy and accurate measurements for the coefficient of linear expansion for brass, copper, and aluminum. With this thermal expansion model, students no longer have to convert resistance readings to temperature values using a conversion table. Data Logger provides immediate temperature feedback in either degrees Celsius (C) or Fahrenheit (F). A software setup CD comes with the apparatus, which includes the predefined variables and equations for measuring temperature in degrees Celsius. ... For the length measurement, the brass, copper, or aluminum tube is placed on the expansion base. The length of the tube is measured at room temperature, then steam is passed through it. The expansion of the length of the metal rod is measured with 0.06 degree resolution using the Rotary Motion Sensor. Temperatures are measured to within +0.1°C using a surface temperature sensor attached to the centre of the tube. To investigate the expansion of the metals at additional temperatures, hot or cold water can be passed through the metal tubes.




  • Rotary motion sensor with angular accuracy of ± 0.125 Degree and max. speed of 1 m/s.
  • Data Logger with real time data plotting facility and 100K sampling rate.
  • Free data analyzing software.
  • Temperature sensor with resolution of 0.03 °C
  • Different samples Like Copper, Brass and Aluminum supplied with experiment.

  • To find coefficient of thermal expansion of copper, aluminum and brass using their pipes

  • Dataloger : Up to 100K SPS, memory capacity 800K sample, Li polymer rechargeable battery, 6 in-built sensor, 4 ext. sensor port (60+ sensor available), connectivity port micro USB, 90.2 x 90.2 x 20mm(LxWxH), 120gm
  • Temp. sensor : Range -40 to 140 °C, Accuracy ± 2%, Resolution 0.03 °C, Response Time 20 sec. in liquid, 40 to 60 sec. in air
  • Rotary sensor : Range ± 128°, Accuracy ± 0.125°, Max. speed 1 m/s, Pulley radius 0.025 m, 0.015 m, 0.005 m, Input Type Digital
  • Samples : Copper, Brass & Aluminium pipe, Dimension L500mm, ID 4mm, OD 6.35mm
  • Steam generator : Copper vessel, 750ml, glass wool insulation outer material PVC, Brass nozzle, heater element SS strips, operating at 220V AC
    • 1 Base unit
    • 1 Copper pipe
    • 1 Brass pipe
    • 1 Aluminium pipe
    • 1 6:1 ratio pinion
    • 1 Rotary motion sensor
    • 1 Foam wrap
    • 1 Surface temperature sensor
    • 1 Data Logger
    • 1 Sensor cable (mini USB)
    • 1 Software CD
    • 1 Silicone Tubing, 1m
    • 1 Steam Generator
    • thermal expansion
    • thermal expansion coefficient