The pulse tube refrigerator (PTR) or pulse tube cryocooler is a developing technology that emerged largely in the early 1980s with a series of other innovations in the broader field of thermoacoustics. In contrast with other cryocoolers (e.g. Stirling cryocooler and Gifford-McMahon cooler), this cryocooler can be made without moving parts in the low temperature part of the device, making the cooler suitable for a wide variety of applications.
Read more about Pulse Tube Refrigerator: Uses, Description, How It Operates, Performance, Comparison With Other Coolers, History, Types of Pulse-tube Refrigerators, Prospects, See Also
Famous quotes containing the words pulse, tube and/or refrigerator:
“My pulse as yours doth temperately keep time,
And makes as healthful music. It is not madness
That I have uttered.”
—William Shakespeare (1564–1616)
“One of the great natural phenomena is the way in which a tube of toothpaste suddenly empties itself when it hears that you are planning a trip, so that when you come to pack it is just a twisted shell of its former self, with not even a cubic millimeter left to be squeezed out.”
—Robert Benchley (1889–1945)
“I hate to do what everybody else is doing. Why, only last week, on Fifth Avenue and some cross streets, I noticed that every feminine citizen of these United States wore an artificial posy on her coat or gown. I came home and ripped off every one of the really lovely refrigerator blossoms that were sewn on my own bodices.”
—Carolyn Wells (1862–1942)