03 Assembly sequence PART ORDER
Install parts in the engineering dependency order, beginning with the isolation foundation.
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05 Component inspector
Choose a part
Select any named component in the viewer or browse a subsystem to inspect its scientific role.
547 individually named exhibit components
06 The science Equations and limitations
Principal operating mechanism. A sealed vessel is evacuated by a staged pumping system, reducing gas number density so an internal specimen can be tested under controlled low-pressure conditions.
Illustrative single-speed pump-down law:
p(t) = p∞ + (p₀ − p∞) exp(−Sₑ t / V)
Textbook throughput relation:
Q = Sₑ (p − p∞) [Pa·m³/s]
Textbook mean-free-path estimate:
λ = kᵦ T / (√2 π d² p)
Independent check: the app also integrates dp/dt = −(Sₑ/V)(p − p∞) with small Runge–Kutta steps. The numerical answer is displayed next to the analytic engine pressure.
Illustrative inputs: p₀ = 101,325 Pa, p∞ = 0.02 Pa, T = 293 K, d = 0.365 nm. Textbook constant: kᵦ = 1.380649 × 10⁻²³ J/K (exact SI value).
Reconstruction categories. Genuine scientific features include the vacuum boundary, roughing and high-vacuum pumps, flange seals, gauges, stage and port architecture. Engineering-inspired features include the service layout and instrument configurations. Scaled educational representations include the open split shell, interior support spacing and sample chamber. Speculative components include the fictional sample and cabinet layout.
Limitations. Gas composition, leakage changes, desorption, molecular conductance, real pump curves, flow-regime transitions and mechanical stresses are not solved. Illustrative animation is not a validated scientific simulation; no numbers are equipment ratings.
Illustrative design, not affiliated with any real institution or manufacturer.
ENGINEERING ATLAS · V—15