ISSN:
1573-1626
Source:
Springer Online Journal Archives 1860-2000
Topics:
Architecture, Civil Engineering, Surveying
,
Geosciences
,
Physics
Notes:
Summary The scale-value switch (Fig. 1) makes it possible to calibrate even the older Askania tidal equipment with a galvanometer at a reduced scale-value. If resistors R 2 and R 3 are selected as shown in Eqs(4) and(5), the ratio of reduction of the scale value1/n does not depend on the internal resistance of the photo-cell in the gravimeter. The resistance of the recording galvanometer R 4 must be determined with an accuracy of±1% in order to obtained an accuracy of±0.5%. Together with the reduction in scale value also the damping is considerably decreased, which enables the time, required for calibration, to be cut down considerably.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01613608
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