from The Century Dictionary.
- Pertaining to the galvanometer or to galvanometry: as, the galvanometric needle.
from the GNU version of the Collaborative International Dictionary of English.
- adjective Of, pertaining to, or measured by, a galvanometer.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Of or pertaining to
- adjective Measured using a
Sorry, no etymologies found.
Among the more recent uses of the interferometer, by means of which small angle deviations can be recorded with an accuracy of minute fractions of a second, may be mentioned Wadsworth's galvanometric construction, with which can be measured electric currents of vanishingly small intensities with a hitherto unknown degree of accuracy.
The starting apparatus consists of a small galvanometric helix, _r_, analogous to Thomson's siphon recorder, which is suspended from a cocoon fiber and capable of moving in an extremely powerful magnetic field, N S.
Five different trials were made at varying speeds of the driving shaft; the initial work on this shaft was measured by a dynamometer, and the available energy of the shaft of the receiving machine was ascertained by a Prony brake; the other results of the experiments were deduced from the constants of the machines and from galvanometric measurements.
In ordinary practice -- galvanometric work for instance -- where it is desirable to use a thread as fine and short as possible to sustain a weight up to, say, half a gramme, it will be found that fibres five centimetres long or over give no trouble through defect of elastic properties.
In the case of instruments in which threads remain highly twisted for long periods of time, the above rule as to the safe limit of twist does not allow of a sufficient margin; it is only applicable to galvanometric and similar purposes.
Professor Langley is at work upon it with new and specially constructed apparatus, including a "bolometer" so sensitive that, whereas previous experimenters have thought themselves fortunate if they could get deflections of ten or twelve galvanometric divisions to work with, he easily obtains three or four hundred.
The galvanometric part, composed of the needles and mirror, therefore remains entirely free, thus allowing of its being verified, and making it convenient to attach the silken fiber.
Therefore the variation of galvanometric deflection due to change of resistance would be less than one part in a thousand (cf.fig. 49).
I have however adopted another method, by which all necessity of correction is obviated, and the galvanometric deflections simply give
We read this effect by means of galvanometric deflections.