Accession Number : AD0673375

Title :   RESEARCH AND DEVELOPMENT OF AN INCREMENTAL MICROFLOWMETER FOR BIOLOGICAL LIQUIDS.

Descriptive Note : Final rept. 1 Jul 67-31 Mar 68,

Corporate Author : SOUTHWEST RESEARCH INST SAN ANTONIO TEX

Personal Author(s) : Ware,Ray W. ; Laenger,Charles J. , Sr. ; Heath,Chester A. ; St. Claire,Felix L. , III

Report Date : JUN 1968

Pagination or Media Count : 35

Abstract : This report summarizes work done in the development and evaluation of a recording incremental microflowmeter which will be applicable in studies of renal physiology, salivary gland physiology and rheologic study of lymph. The laboratory model has a stroke volume of 10 microliters and a maximum pumping rate of about 5700 microliters per minute with a demonstrated accuracy of 98 percent. Accumulated data are displayed on paper tape; both time and volume are recorded. Printout of accumulated volume occurs at 6-second intervals, and clearing occurs each minute. Elapsed time is recorded cumulatively on a minute basis. Pumping occurs when liquid level in the reservoir exceeds a critical level. Pumping rate is electronically controlled. The system requires about 175 watts of electrical power at 120 volts and 60 hertz. The laboratory model incremental microflowmeter was mounted in a 11 x 13 x 22-inch cabinet and weighs about 35 pounds. (Author)

Descriptors :   (*FLOWMETERS, MICROANALYSIS), (*BODY FLUIDS, *MEASUREMENT), PUMPS, URINE, SALIVA, LYMPH, ACCURACY, SECRETION

Subject Categories : Anatomy and Physiology
      Medical Facilities, Equipment and Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE