Henry P. Hall: Difference between revisions

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graduated from Williams College in 1949 and MIT in 1952 before joining General Radio as a co-op student in 1949.
graduated from Williams College in 1949 before joining General Radio as a co-op student in 1949. He obtained a degree from MIT in 1952.


He then worked for close to forty years for the same company until his retirement from GenRad in 1993 as a staff scientist.
He then worked for close to forty years for General Radio until his retirement from GenRad as a staff scientist, in 1993.


He is credited with the design of the [[Digibridge]] instrument and invented the [[Orthonull]] mechanism (see [[1650-A]]).
Among other achievements, he is credited with the design of the [[Digibridge]] instrument and invented the [[Orthonull]] mechanism (see [[1650-A]]).


Hall was a Life Fellow of the IEEE and one of only three General Radio Fellows.
Hall was a Life Fellow of the IEEE and one of only three General Radio Fellows.
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==Links==
==Links==
* [https://www.ietlabs.com/pdf/application_notes/12-Henry%20Hall%20Digibridge%20Patent-Digibridge.pdf IET Labs Application Note, ''Henry Hall: Father of the Digibridge'']
* [https://www.ietlabs.com/pdf/application_notes/12-Henry%20Hall%20Digibridge%20Patent-Digibridge.pdf IET Labs Application Note, ''Henry Hall: Father of the Digibridge'']
* [https://www.ietlabs.com/pdf/GR_Experimenters/1962/GenRad_Experimenter_May_1962.pdf ''A New System for Measuring the Inductance of Iron-Core Coils''.  GenRad Experimenter Vol.36 No.5, May 1962] ([[1630-AL]], [[1633-A]])
* Henry P. Hall, ''A New System for Measuring the Inductance of Iron-Core Coils''.  [https://www.ietlabs.com/pdf/GR_Experimenters/1962/GenRad_Experimenter_May_1962.pdf GenRad Experimenter Vol.36 No.5, May 1962] ([[1630-AL]], [[1633-A]])
* [https://www.ietlabs.com/pdf/GR_Experimenters/1966/GenRad_Experimenter_June_1966.pdf ''The Measurement of Electrolytic Capacitors''. GenRad Experimenter Vol.40 No.6, June 1966] ([[1617-A]])
* Henry P. Hall, ''The Measurement of Electrolytic Capacitors''. [https://www.ietlabs.com/pdf/GR_Experimenters/1966/GenRad_Experimenter_June_1966.pdf GenRad Experimenter Vol.40 No.6, June 1966] ([[1617-A]])
* Henry P. Hall, ''A New Universal Impedance Bridge''. [[Media:General Radio Experimenter Vol.33 No.3 March 1959.pdf|General Radio Experimenter Volume 33, No. 3, March 1959]], page 3.
* Henry P. Hall, ''Orthonull - A Mechanical Device to Improve Bridge Balance Convergence''. [[Media:General Radio Experimenter Vol.33 No.4 April 1959.pdf|General Radio Experimenter Volume 33, No. 4, April 1959]], page 7.


==Patents==
==Patents==

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