Thermal Metrology
Thermal and Mechanical Design Guidelines
19
3.2
Airflow Characterization
Figure 6 shows the recommended location for air temperature measurements
measured relative to the component. For a more accurate measurement of the
average approach air temperature, Intel recommends averaging temperatures
recorded from two thermocouples spaced about 25 mm [1.0 in] apart. Locations for
both a single thermocouple and a pair of thermocouples are presented.
Figure 6. Airflow andTemperature Measurement Locations
Airflow velocity can be measured using sensors that combine air velocity and
temperature measurements. Typical airflow sensor technology may include hot wire
anemometers. Figure 6 provides guidance for airflow velocity measurement locations
which should be the same as used for temperature measurement. These locations are
for a typical JEDEC test setup and may not be compatible with chassis layouts due to
the proximity of the processor to the GMCH. The user may have to adjust the
locations for a specific chassis. Be aware that sensors may need to be aligned
perpendicular to the airflow velocity vector or an inaccurate measurement may result.
Measurements should be taken with the chassis fully sealed in its operational
configuration to achieve a representative airflow profile within the chassis.
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Summary of Contents for 82G35
Page 6: ...6 Thermal and Mechanical Design Guidelines...
Page 10: ...Introduction 10 Thermal and Mechanical Design Guidelines...
Page 16: ...Product Specifications 16 Thermal and Mechanical Design Guidelines...
Page 20: ...Thermal Metrology 20 Thermal and Mechanical Design Guidelines...
Page 30: ...Mechanical Drawings 30 Thermal and Mechanical Design Guidelines Figure 11 GMCH Package Drawing...
