Technical Information

Measurement & Calculations

Your user ID or password is incorrect.
If you have forgotten your password, please click reset password.
Login to your account
Close

Registered customer


Forgot password?

Create an account

Registered customers will have access to the following services.

  • View Web Order Status and History / Re-order
  • Request packing list and invoices

Please enter your login ID(Email address), and click "Request" button.

You will receive an email that is an instruction of resetting your password.

Warning
The length of the current password is short.
Please click here and update your password.
Warning
The current password is invalid.
If you forgot your passward, please click here and update your password.
WarningClose
Due to system changes and for the sake of personal information protection,
we kindly request you to change your password.
Please use the link below to proceed with the password reset.
Password Reset Link
Measurement Apparatus and Method

The thermal performance for forced convection are measured as shown Figure 1, 2.

Figure 1: The Overall Experimental Setup
Figure1

Figure 2: Duct Dimensions, Experimental Setup
Figure2

  • Airflow test chamber .The chamber, manufactured by Airflow Measurement Systems, is designed in accordance with AMCA 210-85 standards.
  • Please see each test condition for Heater Size
  • A 1.4mm hole at the center of the test heat sink is made, and a thermocouple is inserted to the heater. A small amount of thermal grease is applied evenly between heater and heat sink base. Typically, data measurements are taken multiple times.

Reference:

  • Patel, C., Belady C., "Modeling and Metrology in High Performance Heat Sink Design", Porceedings of the 47th Electronic Components and Technology Conference, IEEE, P.296, San Jose, California, 1997.
  • AMCA 210-85
Measurement Apparatus & Condition for Active Heat Sink(Fan Heat Sink)

The thermal performance for active heat sink are measured as shown Figure 3,4.

Figure3.4
  • Please see each test condition for Heater Size
  • A 1.4mm hole at the center of the test heat sink is made, and a thermocouple is inserted to the heater. A small amount of thermal grease is applied evenly between heater and heat sink base. Typically, data measurements are taken multiple times.

Back to top

Measurement Apparatus & Condition for Natural Convection(Zero air flow)

The thermal performance for natural convection are measured as shown Figure 5.

Figure5
  • Please see each test condition for Heater Size
  • A 1.4mm hole at the center of the test heat sink is made, and a thermocouple is inserted to the heater. A small amount of thermal grease is applied evenly between heater and heat sink base. Typically, data measurements are taken multiple times.

Back to top

© 2007-2022 Alpha Novatech, Inc.