Technical Information

Measurement Apparatus and Method

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

Figure 1: The Overall Experimental Setup

Figure 2: Duct Dimensions, Experimental Setup

• 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.

• 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.
	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.

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

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

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Some of our data was measured using the following apparatus.