- Project Runeberg -  Den Norske Nordhavs-expedition 1876-1878 / The Norwegian North-Atlantic Expedition 1876-1878 / 2. Bind /
6

(1880-1901) [MARC]
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mil i Timen, det er 0.ffl5 til lm i Secundet, saa har jeg
ikke fundet mig opfordret til at beregne Vindhastighederne
for 1876 paany efter de corrigerede Aflæsninger af
Vind-maaleren, undtagen for de Observationer, som ere tagne,
naar Skibet laa tilankers.

I 1877 og 1878 benyttedes en ny Vindmaaler, der
var arbejdet i Christiania af Instrumentmager M. Wiig efter
min Tegning. Fig. 5 viser Instrumentet i 1ji af den sande

lm per second, I have not seen fit to re-compute the
wind-velocities for 1876 from the corrected readings of the
anemometer, save in the case of such observations as were
taken when the ship lay at anchor.

In 1877 and 1878, the anemometer used was an
instrument constructed in Christiania from my own design, by
Mr. M. Wiig. Fig. 5 represents this anemometer x/4 of

Fig. 5.
Fig. 5.


Størrelse, saaledes som det holdes under en Observation.
Fig. 6 viser Registreringsmekanismen, seet forfra, og Fig. 7
den samme, seet fra Siden, begge i sand Maalestok. For
at være sikker paa det rigtige Forhold mellem
Vindhastigheden og Kuglecentrernes Hastighed tog jeg de samme
Dimensioner som ved den ovenfor nævnte, i St. Petersburg af

the actual size, as held when taking an observation. Fig. 6
shows the registering part of the instrument, front view;
and Fig. 7 the same mechanism, side view, both actual
size. To make sure of the true ratio between the velocity
of the wind and that of the cup centres, I took the
dimensions of the anemometer tested at St. Petersburg by Mr.

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