Fringe Science: Defringing CCD Images with Neon Lamp Flat Fields

Several methods of measuring the wave-length of electric waves on wires have been investigated. It was found that incorrect results were obtained when neon glow-tubes were moved along the wires to indicate the voltage nodes. By placing the neon lamp at the far end of the wires, however, and using shorting bridges to indicate the nodes, it was found possible to obtain quite consistent results. A thermogalvanometer, used in a similar manner, proved to be a somewhat better indicator and gave results which were more precise.

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A Harmonics Interferometric Doppler Sensor With a Neon Lamp Detector

IEEE Sensors Journal ◽

10.1109/jsen.2020.2970055 ◽

2020 ◽

Vol 20 (10) ◽

pp. 5229-5236

Author(s):

Shaolin Liao ◽

Zi Wang ◽

Lu Ou ◽

Yu Peng

Keyword(s):

Neon Lamp

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SHOWING FILTER ACTION WITH A NEON LAMP

School Science and Mathematics ◽

10.1111/j.1949-8594.1941.tb04373.x ◽

1941 ◽

Vol 41 (5) ◽

pp. 415-418

Author(s):

W. L. Fenner

Keyword(s):

Neon Lamp

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Reciprocal contraction of antagonistic muscles in peripheral preparations, using flashing neon-lamp circuit for excitation of nerve

Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character ◽

10.1098/rspb.1929.0041 ◽

1929 ◽

Vol 105 (737) ◽

pp. 259-279 ◽

Cited By ~ 6

Keyword(s):

The Other ◽

Secondary Coil ◽

Muscle Preparation ◽

Natural Form ◽

Neon Lamp ◽

Nerve Muscle ◽

Working Out ◽

Antagonistic Muscles ◽

Minimal Stimulation ◽

Made In

In a previous communication by one of us (G. B. (1)) it was shown that graded contractions and relaxations of natural form can be obtained in the diaphragm and in skeletal nerve muscle preparation by manipulating a faradic induction apparatus in a special manner. Briefly, this manipulation consists in imparting a smooth to-and-fro movement to the secondary coil of the apparatus, the movement taking place between the points of just maximal and just minimal stimulation. These to-and-fro movements cause certain changes of amplitude in the stimulating current, and the various patterns thus produced are faithfully repeated in the contractions of the experimental muscle, provided the changes are kept within the above-mentioned limiting points. An attempt has been made in the present research to obtain reciprocal contraction of antagonistic muscles by an extension of the above method. In the working-out of the new method of excitation, and in its application to double nerve-muscle preparations, the physiological experiments have been done by one of us (G. B.) and the physical by the other (W. L.).

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NIRPS: the Near-InfraRed Planet Searcher joining HARPS on the 3.6-m

10.5194/epsc2021-555 ◽

2021 ◽

Author(s):

Nolan Grieves ◽

François Bouchy ◽

René Doyon ◽

Etienne Artigau ◽

Lison Malo ◽

...

Keyword(s):

Adaptive Optics ◽

Near Infrared ◽

High Efficiency ◽

State Of The Art ◽

High Accuracy ◽

M Dwarfs ◽

Front End ◽

Neon Lamp ◽

Low Mass ◽

Stability Results

<p>The Near-InfraRed Planet Searcher (NIRPS)&#160;is designed to be&#160;an ultra-stable infrared spectrograph&#160;to be installed&#160;on ESO&#8217;s 3.6 m Telescope in La Silla, Chile. NIRPS is an adaptive optics&#160;(AO)&#160;fiber-fed spectrograph operating from 0.98 to 1.8&#160;&#956;m&#160;and will be operated simultaneously with the optical high-resolution spectrograph HARPS. NIRPS can operate in two modes fed by two different fiber links permanently mounted at the Cassegrain focus that use either 0.4 arcsecond-fibers for the High Accuracy Mode (HAM) or 0.9 arcsecond-fibers for the High Efficiency Mode (HEM).&#160;The wavelength range of NIRPS is optimal for&#160;low-mass&#160;M dwarfs&#160;and the&#160;simultaneous NIRPS and HARPS observations will&#160;improve stellar activity filtering methods given their different wavelength coverages.&#160;The NIRPS front-end and AO system were already tested on-sky at La Silla. The spectrograph and back-end is being shipped to La Silla and installed in Summer/Fall 2021. Already we have adapted the state-of-the-art ESPRESSO data reduction pipeline for NIRPS, obtained accurate wavelength solutions with a Uranium Neon lamp, and obtained drift stability results below 50 cm/s with a Fabry&#8211;P&#233;rot etalon. We discuss the current and expected instrument performance and the expected results of NIRPS.</p>

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