ISSN:0034-6748    

DOI:10.1063/1.1751444

出版商:AIP    

年代:1939

数据来源: AIP

摘要:

A precision current stabilizer is described which is suitable for controlling an electromagnet. The circuit is adaptable to a wide range of current values. Applications to a cyclotron and to a beta‐ray spectrometer are discussed. Currents have been stabilized over a period of several hours to better than 1 part in 50,000.

ISSN:0034-6748    

DOI:10.1063/1.1751445

出版商:AIP    

年代:1939

数据来源: AIP

摘要:

The history and originators of previous devices for detecting mercury are given. The features of the new detector are given along with its operation and characteristics. It is relatively small and portable; it can be used for testing the mercury content of the atmosphere or, by adding some auxiliaries, for testing the flue gas from a mercury boiler. Its direct useful range is from one part per million to one part per billion by volume.

ISSN:0034-6748    

DOI:10.1063/1.1751446

出版商:AIP    

年代:1939

数据来源: AIP

摘要:

A linear pulse amplifier is described which utilizes the principle of negative feedback. The amplifier is substantially unaffected by changes in supply voltages and provides either positive or negative output pulses with practically exact linearity and little backwave. The circuit components are easily obtainable and of moderate cost. A mechanical design is suggested which minimizes the labor of construction.

ISSN:0034-6748    

DOI:10.1063/1.1751447

出版商:AIP    

年代:1939

数据来源: AIP

ISSN:0034-6748    

DOI:10.1063/1.1751449

出版商:AIP    

年代:1939

数据来源: AIP

ISSN:0034-6748    

DOI:10.1063/1.1751452

出版商:AIP    

年代:1939

数据来源: AIP

ISSN:0034-6748    

DOI:10.1063/1.1751453

出版商:AIP    

年代:1939

数据来源: AIP