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A LOG-RESPONSE 5-DECADE A-C OHMMETER,
NATIONAL BUREAU OF STANDARDS WASHINGTON D C
An a-c ohmmeter developed to enble the barium fluoride film hygrometer element to be test flown in modified ANAMT-11 radiosondes is discussed. Circuit diagrams are presented and the effects of temperature and battery voltage on the output of the ohmmeter are discussed. The a-c ohmmeter was modified for use in the humidity experiment on the manned balloon flight, Strato-Lab High No. 5. Author