Meaning of devacuation | Babel Free

Definitions

Loss or removal of vacuum (“reduction of pressure below that of the atmosphere”).

countable, uncountable

Examples

“1963, B. W. Spear, D. E. Powell, Kimcode, a method for controlling devacuations of television tubes, IEEE Trans Broadcast⟳ Telev. Receivers, 1963, 9, 25”

“[…] 1960 shows an increase⟳ in resistance from 22 to 30 ohms which was related to a loss in vacuum. It can be seen that in this case, over the period of the latter 4 years, the total frequency change⟳ due to both devacuation and ageing ...”

“First acquire⟳ a defunct oscilloscope C.R.T. of the flat face⟳ variety and devacuate it. The method I used to devacuate is as follows : First wrap⟳ the C.R.T. in a blanket, with only the extreme socket end⟳ exposed. Next, with the base⟳ pointed away from yourself, gently file⟳ a minute hole in the evacuation nipple of the C.R.T. If this is done carefully, devacuation will occur⟳...”

“1981, L. Brandsma, H. D. Verkruijsse, Synthesis of Acetylenes, Allenes, and Cumulenes: A Laboratory Manual, Elsevier Science Limited After removal of the solvents and after distillation in an oil-pump vacuum nitrogen must be used for the devacuation.”

“[…] prevents slow propagation of surface flaws, encountered in service, which would otherwise lead⟳ to devacuation of the CRT. […] must not exceed the threshold value to prevent⟳ flaw growth and preserve⟳ vacuum over the life of CRT.”

CEFR level