chronograph

Definitions

  • VON BEETZ'S CHRONOGRAPH
    VON BEETZ'S CHRONOGRAPH
  • WordNet 3.6
    • n chronograph an accurate timer for recording time
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Webster's Revised Unabridged Dictionary
    • Chronograph A chronoscope.
    • Chronograph An instrument for measuring or recording intervals of time, upon a revolving drum or strip of paper moved by clockwork. The action of the stylus or pen is controlled by electricity.
    • Chronograph Same as Chronogram, 1.
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Century Dictionary and Cyclopedia
    • n chronograph A chronogram.
    • n chronograph An instrument for recording the exact instant in which an event occurs. The most important instrument of this kind is the astronomical chronograph, the parts of which are: a train of clockwork, regulated, not by an ordinary escapement, but in such a way as to move with a continuous and equable motion, and carry forward a sheet or ribbon of paper; a pen which draws a continuous line upon the paper, and is so attached to the armature of an electromagnet that whenever the electric current is broken (or made) for an instant a jog is produced in the line drawn by the pen. The electromagnet is put into one circuit with a clock or chronograph which breaks (or makes) the circuit for an instant at every second, or other convenient interval, and also with an observing-key, which on being pressed (at the moment the observation is taken) produces the same effect. The result is that jogs appear upon the line drawn by the pen at every second, and also every time the key is touched; and the relative distances of these jogs, which can be accurately measured, give the time of the observation correct to a fiftieth of a second. The name chronograph is also applied to various kinds of watches so contrived that when a button is pressed the second-hand stops, or one of two second-hands stops, or the second-hand leaves a dot of ink upon the dial.
    • n chronograph An instrument for measuring a small interval of time. The simplest instrument of this description consists of a tuning-fork carrying at the end of one of its prongs a bit of quill, which scratches a wavy line upon a moving piece of blackened paper. At the beginning and at the end of the interval to be measured an induction-spark is made to pass through the paper close to the marking-point. Two little dots are thus made, and the number of waves and fractions of a wave between them gives the interval of time expressed in terms of the period of vibration of the fork as a unit.
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Chambers's Twentieth Century Dictionary
    • n Chronograph kron′o-graf a chronogram: an instrument for taking exact measurements of time, or for recording graphically the moment or duration of an event
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Etymology

Webster's Revised Unabridged Dictionary
Gr. time + -graph,: cf. F. chronographe,
Chambers's Twentieth Century Dictionary
Gr. chronos, time, graphein, to write.

Usage

In literature:

This target is used in connection with the Boulenge chronograph.
"Scientific American Supplement, No. 787, January 31, 1891" by Various
In the central office was a chronograph which registered each discharge in succession.
"Charles Carleton Coffin" by William Elliot Griffis
Chronograph# for physical and astronomical work.
"Astronomical Instruments and Accessories" by Wm. Gaertner & Co.
In the Le Boulenge chronograph ("Chronograph le Boulenge," par M. Breger, Commission de Gavre, Sept. 1880) two screens are used.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3" by Various
Watkins glanced at his chronograph.
"The Enormous Room" by Horace Leonard Gold
The number of revolutions and the rise of temperature were recorded on a chronograph drum.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1" by Various
Accordingly, they must be chronographic in intention.
"The Borghesi Astronomical Clock in the Museum of History and Technology" by Silvio A. Bedini
The time was recorded by means of the Jacquet chronograph.
"Clever Hans" by Oskar Pfungst
The Boulange chronograph is a modern development of this idea.
"The New Gresham Encyclopedia. Vol. 1 Part 3" by Various
When the two reflections are aligned, a "coincidence" is marked on the chronograph tape.
"Development of Gravity Pendulums in the 19th Century" by Victor Fritz Lenzen and Robert P. Multhauf
Then the clock at B is made to write on both chronographs.
"Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6" by Various
To avoid counting time a method of electric registration on a chronograph was adopted.
"Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 4" by Various
Beyond this the chronographers do not give us any help.
"The History of Antiquity, Vol. II (of VI)" by Max Duncker
The influence of Hippolytus was felt chiefly through his works on chronographic and ecclesiastical law.
"Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 5" by Various
Accordingly, they must be chronographic in intention.
"Smithsonian Institution - United States National Museum - Bulletin 240" by Anonymous
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In news:

Take this new chronograph from Dent.
Free limited edition Öhlins Chronograph watch with purchase of a sale-priced $1999.00 Road & Track fork.
Ralph Lauren's Sporting Chronograph : The June Essential.
Jeffrey Westbrook/Studio D. Steel Sporting chronograph ($9,300) by Ralph Lauren.
An innovative dial indicator displays when the chronograph is running, stopped, or ready to be reset.
The Chronograph Is One Of The Most Valuable Tools.
My first chronograph was an Oehler Model 12, acquired around 1980.
Today I can't imagine getting along without a chronograph.
Time Zone by Congress Jewelers on Sanibel Island has become one of 300 retailers worldwide and the only in Lee County to carry ToyWatch, a line of Italian-made chronograph wristwatches in hot colors and cool styles.
Antiques Roadshow 1954 Rolex Anti-Magnetic Chronograph Wristwatch PBS.
One of the best ways to ensure safety is to invest in a chronograph to check the velocity of the paintballs exiting the marker.
Markers must be chronographed at least once a day, especially if carbon dioxide is the gas propelling the paintballs .
Test the same rifle with the same bullet but different powders and the chronograph gives the lie to inflated advertised praise.
Orefici's Gladiatore Chronograph is a manly watch that's just right for the macho man in the family.
Swiss quartz chronograph with rubber strap, $2,100, Ebel.
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In science:

Figure 10 shows a schematic of the coronagraph. A 10 cm telescope forms an image on the chronographic stop.
The Science, Technology and Mission Design for the Laser Astrometric Test of Relativity
Figure 26 shows a schematic of the coronagraph. A 20 cm telescope forms an image on the chronographic stop.
Science, Technology and Mission Design for the Laser Astrometric Test Of Relativity
In other words, at the range where the velocity has slowed to the desired level, it is unlikely that the test will be able to reliably hit the tissue simulant (for studying terminal performance) or the chronograph window (for measuring velocity loss to infer ballistic coefficient).
A method for testing bullets at reduced velocity
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