Temperature control is a crucial yet often underestimated parameter in xenon lamp aging tests. Air-cooled and water-cooled xenon aging chambers typically regulate the test environment by monitoring the temperature of the black panel. This black panel, which is coated with a dark material, has temperature sensors attached to its surface. These are referred to as "non-insulated blackboards."
In addition to non-insulated versions, both air-cooled and water-cooled xenon aging chambers can also be equipped with an insulated blackboard thermometer. Known as "black mark temperature" in ISO standards, this type of sensor is mounted on an insulating plastic base. The insulated version usually records temperatures that are 5° to 10° higher than the non-insulated one due to reduced heat dissipation.
Many modern xenon lamp aging test chambers are designed to monitor both the ambient temperature of the chamber and the temperature of the blackboard. This dual control ensures more accurate simulation of real-world environmental conditions, especially when testing materials for durability under varying thermal stresses.
Understanding the differences between these temperature control methods is essential for selecting the right equipment and achieving reliable, repeatable results in aging tests. Whether you're working with air-cooled or water-cooled systems, proper temperature management plays a key role in ensuring the validity of your test outcomes.
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