What Are the Key Techniques for Measuring Heat Capacity at Low Temperatures?

Click For Summary
SUMMARY

This discussion focuses on measuring heat capacity at low temperatures, specifically around 10K. Key techniques include using resistive heating elements and low-temperature thermocouples, which can be sourced from suppliers like Kurt J Lesker. Calibration of the cold finger's heat capacity is essential for accurate measurements. The energy imparted by the resistive heater is calculated using the formula energy = power * time = R * I^2 * time.

PREREQUISITES
  • Understanding of low-temperature thermodynamics
  • Familiarity with resistive heating elements
  • Knowledge of thermocouple operation
  • Basic electrical engineering concepts, particularly Ohm's Law
NEXT STEPS
  • Research calibration techniques for low-temperature heat capacity measurements
  • Explore the properties and applications of low-temperature thermocouples
  • Study the principles of resistive heating and its impact on thermal measurements
  • Learn about energy calculations in thermal systems, focusing on the formula energy = power * time
USEFUL FOR

Researchers, physicists, and engineers involved in low-temperature physics, thermal analysis, and materials science will benefit from this discussion.

kuecken
Messages
17
Reaction score
0
Hi, I am looking for an introduction to heat capacity measurements at low temperature (10K). (For example for producing the linear dependence of the electronic heat capacity on T). I fail to find a simple introduction. Can anyone mention keypoints or a good source?
Thank you!
 
Physics news on Phys.org
You can buy resistive heating elements and low temperature thermocouples from vacuum supplier like Kurt J Lesker. Just going off my intuition, I imagine you need to calibrate out the heat capacity of the cold finger. You would be calculating energy imparted from the resistive heater using energy = power* time = R*I^2 * time.
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 5 ·
Replies
5
Views
4K
  • · Replies 19 ·
Replies
19
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 8 ·
Replies
8
Views
6K
  • · Replies 1 ·
Replies
1
Views
11K
  • · Replies 131 ·
5
Replies
131
Views
10K
Replies
1
Views
3K
Replies
2
Views
2K