[计] 针流电阻器, 热线检流器

[化] 镇流器; 镇流电阻器

[ noun ]
a resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations)
<noun.artifact>

barretter \bar"ret*ter\, n. [OF. bareter to exchange. Cf.
{Barter}.]
1. (Electronics) a resistor inserted into a circuit to
compensate for changes (such as those arising from
temperature fluctuations); a thermal cymoscope.

Syn: ballast resistor.
[Webster 1913 Suppl. + WordNet 1.5]

Note: The original form consisted of an extremely fine
platinum wire loop attached to terminals and inclosed
in a small glass or silver bulb. It operates by
increased resistance when subjected to the influence of
an electric current. In a later variety, called the

{liquid barretter}, wire is replace by a column of liquid in
a very fine capillary tube. A recent version has a
resistor composed of an iron wire in a glass bulb
containing hydrogen, with the temperature variation of
resistance such that the current passing through it
remains constant over a wide range of applied voltages.
[Webster 1913 Suppl. + PJC]