Thermal Validation
MVME55006E Single Board Computer Installation and Use (6806800A37H)
123
B.3.1
Preparation
We recommend 40 AWG (American wire gauge) thermocouples for all thermal measurements.
Larger gauge thermocouples can wick heat away from the components and disturb air flowing
past the board.
Allow the board to reach thermal equilibrium before taking measurements. Most circuit boards
will reach thermal equilibrium within 30 minutes. After the warm up period, monitor a small
number of components over time to assure that equilibrium has been reached.
B.3.2
Measuring Junction Temperature
Some components have an on-chip thermal measuring device such as a thermal diode. For
instructions on measuring temperatures using the on-board device, refer to the component
manufacturer’s documentation listed in
B.3.3
Measuring Local Air Temperature
Measure local component ambient temperature by placing the thermocouple downstream of
the component. This method is conservative since it includes heating of the air by the
component. The following figure illustrates one method of mounting the thermocouple.
Figure B-3
Thermalcouple Placement
Thermocouple
junction
PWB
Tape thermocouple wire to
top of component
Air flow
Содержание MVME55006E
Страница 8: ...MVME55006E Single Board Computer Installation and Use 6806800A37H Contents 8 Contents Contents ...
Страница 12: ...MVME55006E Single Board Computer Installation and Use 6806800A37H 12 List of Figures ...
Страница 18: ...MVME55006E Single Board Computer Installation and Use 6806800A37H About this Manual 18 About this Manual ...
Страница 56: ...Functional Description MVME55006E Single Board Computer Installation and Use 6806800A37H 56 ...
Страница 116: ...Connector Pin Assignments MVME55006E Single Board Computer Installation and Use 6806800A37H 116 ...
Страница 126: ...Thermal Validation MVME55006E Single Board Computer Installation and Use 6806800A37H 126 ...
Страница 130: ...Related Documentation MVME55006E Single Board Computer Installation and Use 6806800A37H 130 ...
Страница 140: ...MVME55006E Single Board Computer Installation and Use 6806800A37H Sicherheitshinweise 140 ...
Страница 144: ...Index MVME55006E Single Board Computer Installation and Use 6806800A37H 144 ...
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