What's the difference between sparger and sparker?

Sparger

Definition:

(n.) A vessel with a perforated cover, for sprinkling with a liquid; a sprinkler.

Example Sentences:

(1) This oxygenator incorporates a unique integral gas controller which proportions the gas flow between the gas sparger and heat exchange area.
(2) Sparger aeration, with or without mechanical agitation is the simplest method of providing an oxygen supply.
(3) Also a variety of sparging rates and sparger sizes and positions have been employed.
(4) The results of the study indicate that maintenance of a gas flow which ensures adequate CO2 removal can be prevented from inducing over-oxygenation by the manipulation of the gas controller which variably proportions the flow of gas from the oxygenation-efficient conventional gas sparger to the less efficient heat exchange area.
(5) Oxygen was supplied on occasional demands by the original sparger.
(6) Next, cell growth was compared in two airlift bioreactors with similar geometry but different sparger design; one of these bioreactors consisted of a thin membrane distributor, while the other consisted of a porous stainless steel distributor.

Definition:

Example Sentences:

(1) The inhibition of oxygen uptake was less than that of (14)CO(2) formation, presumably because fumarate was used as a sparker.