Electronic components and apparatus for use in polar field operations
It was noted in Table 3 of the first paper that the failure rate of common types of valves is about one half per cent per thousand hours of operation. Some other components are as unreliable as this, but they are not employed in such large numbers in typical electronic equipment so that (at least un...
Published in: | Polar Record |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
1964
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0032247400067024 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247400067024 |
id |
crcambridgeupr:10.1017/s0032247400067024 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s0032247400067024 2024-03-03T08:48:10+00:00 Electronic components and apparatus for use in polar field operations Atkinson, L. G. Dummer, G. W. A. Evans, S. 1964 http://dx.doi.org/10.1017/s0032247400067024 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247400067024 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Polar Record volume 12, issue 78, page 291-300 ISSN 0032-2474 1475-3057 General Earth and Planetary Sciences Ecology Geography, Planning and Development journal-article 1964 crcambridgeupr https://doi.org/10.1017/s0032247400067024 2024-02-08T08:40:58Z It was noted in Table 3 of the first paper that the failure rate of common types of valves is about one half per cent per thousand hours of operation. Some other components are as unreliable as this, but they are not employed in such large numbers in typical electronic equipment so that (at least until very recently) valves are much the commonest cause of electronic equipment failure. The mechanical and electrical tests which valves are required to pass before the Armed Services grant type approval are given in Joint Service Specification K1001, Ministry of Aviation, June 1958. In an analysis of failure reports made in 1953 in the Royal Navy, the Royal Air Force, civil aviation, and under typical laboratory conditions, the proportion of faults traced to valves ranged from 45 to 55 per cent of the total. Under conditions of rough handling the average life of valves is likely to be further reduced, more so than for any other common component, so that the number of faults and the proportion of faults due to valves, will be even higher. Article in Journal/Newspaper Polar Record Cambridge University Press Polar Record 12 78 291 300 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
General Earth and Planetary Sciences Ecology Geography, Planning and Development |
spellingShingle |
General Earth and Planetary Sciences Ecology Geography, Planning and Development Atkinson, L. G. Dummer, G. W. A. Evans, S. Electronic components and apparatus for use in polar field operations |
topic_facet |
General Earth and Planetary Sciences Ecology Geography, Planning and Development |
description |
It was noted in Table 3 of the first paper that the failure rate of common types of valves is about one half per cent per thousand hours of operation. Some other components are as unreliable as this, but they are not employed in such large numbers in typical electronic equipment so that (at least until very recently) valves are much the commonest cause of electronic equipment failure. The mechanical and electrical tests which valves are required to pass before the Armed Services grant type approval are given in Joint Service Specification K1001, Ministry of Aviation, June 1958. In an analysis of failure reports made in 1953 in the Royal Navy, the Royal Air Force, civil aviation, and under typical laboratory conditions, the proportion of faults traced to valves ranged from 45 to 55 per cent of the total. Under conditions of rough handling the average life of valves is likely to be further reduced, more so than for any other common component, so that the number of faults and the proportion of faults due to valves, will be even higher. |
format |
Article in Journal/Newspaper |
author |
Atkinson, L. G. Dummer, G. W. A. Evans, S. |
author_facet |
Atkinson, L. G. Dummer, G. W. A. Evans, S. |
author_sort |
Atkinson, L. G. |
title |
Electronic components and apparatus for use in polar field operations |
title_short |
Electronic components and apparatus for use in polar field operations |
title_full |
Electronic components and apparatus for use in polar field operations |
title_fullStr |
Electronic components and apparatus for use in polar field operations |
title_full_unstemmed |
Electronic components and apparatus for use in polar field operations |
title_sort |
electronic components and apparatus for use in polar field operations |
publisher |
Cambridge University Press (CUP) |
publishDate |
1964 |
url |
http://dx.doi.org/10.1017/s0032247400067024 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247400067024 |
genre |
Polar Record |
genre_facet |
Polar Record |
op_source |
Polar Record volume 12, issue 78, page 291-300 ISSN 0032-2474 1475-3057 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0032247400067024 |
container_title |
Polar Record |
container_volume |
12 |
container_issue |
78 |
container_start_page |
291 |
op_container_end_page |
300 |
_version_ |
1792504696912478208 |