Abstract

A summary of infra-red methods of gas analysis is presented. The experimental work which led to the development of an instrument for service applications is described. The properties of this final instrument are outlined, together with a résumé of performance characteristics for a number of applications.

© 1947 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. H. Schmick, U. S. Patent No. 1,758,088.
  2. A. H. Pfund, Science 90, 236 (1939).
    [Crossref]
  3. Pfund and Gemill, Bull. Johns Hopkins Hosp. 67, 61 (1940).
  4. K. F. Luft, Zeits. f. Physik 24, 97 (1943).
  5. N. Wright and L. W. Herscher, J. Opt. Soc. Am. 36, 195 (1946).
  6. Instruments for use by the Armed Services were engineered and built by Leeds and Northrup Company under a separate OSRD Contract OEMsr 1035, Section 17.1 NDRC.

1946 (1)

1943 (1)

K. F. Luft, Zeits. f. Physik 24, 97 (1943).

1940 (1)

Pfund and Gemill, Bull. Johns Hopkins Hosp. 67, 61 (1940).

1939 (1)

A. H. Pfund, Science 90, 236 (1939).
[Crossref]

Gemill,

Pfund and Gemill, Bull. Johns Hopkins Hosp. 67, 61 (1940).

Herscher, L. W.

Luft, K. F.

K. F. Luft, Zeits. f. Physik 24, 97 (1943).

Pfund,

Pfund and Gemill, Bull. Johns Hopkins Hosp. 67, 61 (1940).

Pfund, A. H.

A. H. Pfund, Science 90, 236 (1939).
[Crossref]

Schmick, H.

H. Schmick, U. S. Patent No. 1,758,088.

Wright, N.

Bull. Johns Hopkins Hosp. (1)

Pfund and Gemill, Bull. Johns Hopkins Hosp. 67, 61 (1940).

J. Opt. Soc. Am. (1)

Science (1)

A. H. Pfund, Science 90, 236 (1939).
[Crossref]

Zeits. f. Physik (1)

K. F. Luft, Zeits. f. Physik 24, 97 (1943).

Other (2)

H. Schmick, U. S. Patent No. 1,758,088.

Instruments for use by the Armed Services were engineered and built by Leeds and Northrup Company under a separate OSRD Contract OEMsr 1035, Section 17.1 NDRC.

Cited By

OSA participates in Crossref's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (15)

F. 1
F. 1

Non-selective gas analyzer comprising a source, a sample space, and a radiation detector.

F. 2
F. 2

Selective gas analyzer with source of hot gas, sample tube, and detector.

F. 3
F. 3

Selective gas analyzer with source, sample tube, and selective detector.

F. 4
F. 4

Selective gas analyzer with source, sample tube, split negative filters, and differential detector.

F. 5
F. 5

Selective manometric detector.

F. 6
F. 6

Experimental instrument using matched double-mirror sample tubes and opposed selective detectors.

F. 7
F. 7

Final experimental instrument using reflecting sample tube (5 in. long) and conical negative filters.

F. 8
F. 8

Conical gas filters.

F. 9
F. 9

Differential thermopile.

F. 10
F. 10

Schematic diagram of electrical circuit for negative-filter gas analyzer.

F. 11
F. 11

Résumé of performance of negative-filter instruments.

F. 12
F. 12

Calibration curve for carbon monoxide with 5-in. sample tube.

F. 13
F. 13

Calibration curve for water vapor with 5-in. sample tube.

F. 14
F. 14

Calibration curves for carbon dioxide.

F. 15
F. 15

Calibration curves for carbon dioxide. A—total pressure constant.B,C—percent CO2 constant, total pressure varying.