SEARCH · Search NASA
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Modified palladium leak device provides a controlled release /leak/ of very small quantities of gas at low or medium pressures. It has no moving parts, requires less than 5 watts to operate, and is capable of releasing the gas either continuously or in pulses at adjustable flow rates.
Tube joint leak repair coupling consists of 2 split seals, 1 male split nut, 1 female split nut, and two aligning pins. Each split nut consists of 2 half-shell sections which, when engaged, are held together by a dovetail joint and an aligning pin.
Describing and estimating standards for missile plumbing leak fittings
Diffusion of Freon and helium trace gases for detection of leaks in aerospace systems
Leak detection for aerospace hardware, discussing equipment, operations, checkout, etc
Residual gas analyzer and leak detector by time of flight measurements on neutral metastable atoms and molecules between pulsed electron gun and auger surface detector
Leak detection for aerospace hardware, discussing equipment, operations, checkout, etc
Portable volumetric leak detector measures leakage in the range of 5 to 40 cc/hr. The detector, a fluid displacing apparatus, measures the leakage of gases across valve seats and checks components and systems of components independent of size in relatively short periods of time.
Spacecraft gas jet leak detection system using solenoid valve
Production model leak detector for space environment
Design and fabrication of halogen leak detector based on gradient sensing concept
Measurement and correlation of helium and fluid leak rates in Apollo propellants and ECS fluids
Inlet leak analysis for spacecraft mass spectrometer atmospheric sensor system
Gas leak detection in evacuated systems using ultraviolet radiation probe
Method for locating leaks in hermetically sealed containers
Volume displacement transducer for leak detection in hermetically sealed semiconductor devices
Test chambers with orifice and helium mass spectrometer for detecting leak rate of encapsulated semiconductor devices