Engineering topics

Olney, J. N.

Publications and source records attributed to Olney, J. N..

2 records

NASA NTRS1983

Leak Tester for Cryogenic Flowlines

Gas chromatography measures leakage into cavity surrounding joint under test. System surrounds joint being tested with sealed cavity. Presence of leakage gas in cavity monitored by gas chromatograph. Leakage rate found by multiplying relative leakage gas concentration by mass flow rate of purge as into cavity.

Mortensen, G. D.↗

NASA NTRS1980

Transferring small samples of viscous liquid

To avoid trapped air bubbles, fluid after removing plunger. Plunger is reinserted, syringe inverted, and air bubbles expelled by depressing plunger. Technique makes it easy to control sample quantities as small as one microliter, without problems from bubbles created by plunger suction.

Miller, B. W.↗