| 31. |
Battery driven field data logger with static random‐access memory storage |
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Review of Scientific Instruments,
Volume 56,
Issue 1,
1985,
Page 163-164
Takashi Ohsumi,
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PDF (170KB)
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摘要:
A data logger using static CMOS‐type nonvolatile random‐access memory (RAM) is described. Its compactness and low requirement of electric power allows outdoor use with battery operation for a period of more than 1 year. The device provides a low‐cost strategy for field monitoring of the surface manifestation of volcanic activity or earthquake precursors.
ISSN:0034-6748
DOI:10.1063/1.1138461
出版商:AIP
年代:1985
数据来源: AIP
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| 32. |
Counting efficiency of systems having both paralyzable and nonparalyzable elements |
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Review of Scientific Instruments,
Volume 56,
Issue 1,
1985,
Page 164-165
M. Lampton,
J. Bixler,
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PDF (176KB)
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摘要:
Electronics for processing random event trains may contain some elements which are paralyzable in combination with others which are nonparalyzable. An expression is derived which gives the counting efficiency or live time of such a system when its input is a Poisson random arrival process.
ISSN:0034-6748
DOI:10.1063/1.1138462
出版商:AIP
年代:1985
数据来源: AIP
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| 33. |
Flexible tube countercurrent heat exchanger |
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Review of Scientific Instruments,
Volume 56,
Issue 1,
1985,
Page 165-166
R. J. Coffelt,
J. Wikman‐Coffelt,
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PDF (137KB)
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摘要:
The countercurrent heat exchanger described here functions as a fluid heater or cooler for maintaining or modulating temperature in a liquid flowing through a glassware and plastic tube system.
ISSN:0034-6748
DOI:10.1063/1.1138463
出版商:AIP
年代:1985
数据来源: AIP
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Volume 56 issue 1