公开(公告)号：US3621710A

公开(公告)日：1971-11-23

申请号：US3621710D

申请日：1969-09-26

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： DAY JOHN J ,  MCLEOD WILFRED R ,  RHODES DONALD F

IPC: G01F1/704 ,  G21H5/02 ,  G01F1/00

CPC classification number: G01F1/7042 ,  G21H5/02

Abstract: METHODS AND APPARATUS TO MEASURE THE VELOCITES OF ALL OR SELECTED ONES OF THE COMPONENTS OF A MULTICOMPONENT MATERIAL TRANSMISSION SYSTEM. RADIOACTIVE TRACERS, EACH COMPATIBLE WITH ONLY ONE COMPONENT IN THE SYSTEM ARE UTILIZED. VARIOUS ELECTRONIC EMBODIMENTS TO HANDLE

THE DATA, MEANS TO CLAMP THE DETECTORS TO A PIPELINE, AND MEANS TO INJECT RADIOACTIVE GASEOUS AND LIQUID TRACERS ARE DISCLOSED.

公开(公告)号：US3508047A

公开(公告)日：1970-04-21

申请号：US3508047D

申请日：1966-05-25

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： MOTT WILLIAM E ,  RHODES DONALD F

IPC: G01N23/09 ,  G01N23/12 ,  G01T3/00 ,  H01J39/32

CPC classification number: G01N23/09 ,  G01N23/12

公开(公告)号：US3602711A

公开(公告)日：1971-08-31

申请号：US3602711D

申请日：1968-06-19

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： ARORA SUDESH KUMAR ,  RHODES DONALD F

IPC: G01N23/223 ,  G01N23/12

CPC classification number: G01N23/223 ,  G01N2223/076

Abstract: Method and apparatus to accurately determine the percent sulfur content in hydrocarbon process streams comprising the use of radioactive americium-241 and a molybdenum target in reflection mode to produce a narrow X-ray density spectrum at 20 Kev. The equality of the mass attenuation coefficients of carbon and hydrogen at 20 Kev., is utilized to determine the percent by weight content of sulfur in the hydrocarbon stream.

公开(公告)号：US3579118A

公开(公告)日：1971-05-18

申请号：US3579118D

申请日：1969-09-26

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： RHODES DONALD F

IPC: G06F1/08 ,  H03B21/02 ,  H03K3/04 ,  H03K21/00

CPC classification number: G06F1/08 ,  H03B21/025 ,  H03K3/04

Abstract: Providing various frequency and pulse repetition combinations, including single frequency, and two predetermined numbers of output pulses at each of two frequencies comprising a first cascade of flip-flops fed from a pulsing clock with means to tap two selected flip-flops in the cascade to set the two output frequencies. A second similar cascade of flip-flops includes means to set the two predetermined numbers of pulses. The two cascades are interconnected by means including control flipflops, whereby switching from one to the other settings on, and resetting of both arrays, are accomplished.

公开(公告)号：US3437809A

公开(公告)日：1969-04-08

申请号：US3437809D

申请日：1965-07-06

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： MOTT WILLIAM E ,  RHODES DONALD F

IPC: G01N23/09 ,  G01T3/02

CPC classification number: G01N23/09

公开(公告)号：US3437808A

公开(公告)日：1969-04-08

申请号：US3437808D

申请日：1965-07-06

Applicant: GULF RESEARCH DEVELOPMENT CO

Inventor： MOTT WILLIAM E ,  RHODES DONALD F

IPC: G01N23/09 ,  G01T3/00 ,  B07C5/344 ,  H01J39/32

CPC classification number: G01N23/09