Behind the Scenes of the James Webb Space Telescope: A Metrologist's Perspective

🔍Metrologists play a vital role in ensuring precise measurements in the construction of the James Webb Space Telescope sunshield.

🔭The sunshield is a critical component of the telescope, protecting the optics and electronics from heat and light.

📏Measurement devices like laser scanners and coordinate measuring machines are used to ensure accurate positioning of the sunshield.

🕒The sunshield is folded during launch to fit into the rocket, and vent holes are strategically placed to prevent expansion.

🌞The sunshield's unique design allows it to block sunlight, Earth light, moonlight, and reflected heat and light.

What is the purpose of the sunshield?

—The sunshield protects the James Webb Space Telescope's optics and electronics from heat and light.

How do metrologists contribute to the construction of the sunshield?

—Metrologists ensure precise measurements of the sunshield's position and shape using laser scanners and coordinate measuring machines.

Why are there holes in the sunshield?

—The vent holes in the sunshield allow for the escape of trapped air during the rocket's ascent, preventing the sunshield from expanding like a balloon.

How many layers are there in the sunshield?

—The sunshield is composed of five layers.

What materials are used in the sunshield?

—The sunshield's layers are made of silicon and vapor deposited aluminum.

00:00Join Destin as he visits his father's workplace to explore the Metrologist's role in the construction of the James Webb Space Telescope sunshield.

02:58Learn about the purpose and importance of the sunshield in protecting the telescope's optics and electronics from heat and light.

09:48Discover how metrologists use laser scanners and coordinate measuring machines to ensure precise measurements in constructing the sunshield.

12:45Understand the function of the vent holes in the sunshield and their role in preventing expansion during the rocket's ascent.

09:36Learn about the composition and materials used in the sunshield, including silicon and vapor deposited aluminum.