ISSN:0034-6748    

DOI:10.1063/1.1752397

出版商:AIP    

年代:1938

数据来源: AIP

ISSN:0034-6748    

DOI:10.1063/1.1752431

出版商:AIP    

年代:1938

数据来源: AIP

ISSN:0034-6748    

DOI:10.1063/1.1752440

出版商:AIP    

年代:1938

数据来源: AIP

ISSN:0034-6748    

DOI:10.1063/1.1752441

出版商:AIP    

年代:1938

数据来源: AIP

摘要:

A vacuum tube scale‐of‐two is described using triodes. Accurate high speed tests of the resolution time showed this to be 6.5×10−6seconds. New methods of interpolation are also presented.

ISSN:0034-6748    

DOI:10.1063/1.1752442

出版商:AIP    

年代:1938

数据来源: AIP

摘要:

The surface conductivity of clear fused quartz in a humid atmosphere is found to be greatly increased, rather than decreased, by coating the quartz with a thin layer of ceresin wax. Humidity was controlled by the addition of a measured quantity of water to a known volume of thoroughly dried air.

ISSN:0034-6748    

DOI:10.1063/1.1752443

出版商:AIP    

年代:1938

数据来源: AIP

摘要:

Hickman has made a contribution to pump development which is outstanding since the original work of Gaede and Langmuir. We have checked his conclusions regarding the desirability of incorporating a distillation process in conjunction with the pumping operation. The results of our work are incorporated in a pump design based upon a design of Hickman's. This pump: (1) yields very low ultimate vacuums; (2) operates against moderately high backing pressures; and (3) is made entirely of metal. In addition, we have made ``life tests'' on Octoil which indicate its superiority over available petroleum distillates as regards vapor pressure and ability to withstand abuse.

ISSN:0034-6748    

DOI:10.1063/1.1752444

出版商:AIP    

年代:1938

数据来源: AIP

ISSN:0034-6748    

DOI:10.1063/1.1752445

出版商:AIP    

年代:1938

数据来源: AIP

ISSN:0034-6748    

DOI:10.1063/1.1752446

出版商:AIP    

年代:1938

数据来源: AIP

ISSN:0034-6748    

DOI:10.1063/1.1752447

出版商:AIP    

年代:1938

数据来源: AIP