Accession Number:

AD0412823

Title:

DIFFERENTIAL BAROGRAPH WITH PHOTOGRAPHIC RE CORDING OF THE READINGS,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1963-06-28

Pagination or Media Count:

16.0

Abstract:

An instrument intended for continuous recording of chan atmospheric pressure is described. It is called a differential barograph. Its sensitivity is 10-12 times higher than the sensi tivity of a mercury barometer. There are no metal springs in the instrument therefore its readings are free from the distorting effect of hysteresis and elastic aftereffect. The instru ment was initially intended for observations of barometric leveling at field stations later it began to be used for control observations when studying certain geophysical phenomena. In par ticular, it was used at the Institute as a con trol instrument when studying terrestial tides. The barograph can also be used in those cases where increased demands are made on the accuracy of recording atmospheric pressure. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE