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Henry P. Hall: Difference between revisions
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[[File:Henry P. Hall.jpg|thumb|150px|right|Henry P. Hall ( | [[File:Henry P. Hall.jpg|thumb|150px|right|Henry P. Hall (1966)]] | ||
'''Henry Parsons Hall''' (June 28, 1928 - July 17, 2023) graduated from Williams College in 1949 and MIT in 1952 before joining General Radio as a co-op student in 1949. | '''Henry Parsons Hall''' (June 28, 1928 - July 17, 2023) graduated from Williams College in 1949 and MIT in 1952 before joining General Radio as a co-op student in 1949. | ||
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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-A]], [[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]]) | |||
==Patents== | |||
* [https://patents.google.com/patent/US2872639A/en US Patent 2872639, Henry P Hall, ''Electrical bridge and method'']. Filed Oct. 10, 1956; Granted Feb. 3, 1959 (describing the Orthonull feature) | * [https://patents.google.com/patent/US2872639A/en US Patent 2872639, Henry P Hall, ''Electrical bridge and method'']. Filed Oct. 10, 1956; Granted Feb. 3, 1959 (describing the Orthonull feature) | ||
* [https://patents.google.com/patent/US4342089A/en US Patent 4342089, Henry P Hall, ''Method of and apparatus for automatic measurement of circuit parameters with microprocessor calculation techniques'']. Filed Dec 12, 1979; Granted July 27, 1982 | * [https://patents.google.com/patent/US4342089A/en US Patent 4342089, Henry P Hall, ''Method of and apparatus for automatic measurement of circuit parameters with microprocessor calculation techniques'']. Filed Dec 12, 1979; Granted July 27, 1982 | ||
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| [[1232-P2]] || Preamplifier || 1967-02 | | [[1232-P2]] || Preamplifier || 1967-02 | ||
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| [[1265-A]] || Adjustable DC Power Supply || 1962-05 | | [[1265-A]] || Adjustable DC Power Supply || [https://www.ietlabs.com/pdf/GR_Experimenters/1962/GenRad_Experimenter_May_1962.pdf 1962-05] | ||
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| [[1417]] || Four-Terminal Capaitance Standard || 1978 catalog | | [[1417]] || Four-Terminal Capaitance Standard || 1978 catalog | ||
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| [[1613-A]] || Capacitance Bridge || 1958-02 | | [[1613-A]] || Capacitance Bridge || 1958-02 | ||
|- | |- | ||
| [[1617-A]] || Capacitance Bridge || 1966-06 | | [[1617-A]] || Capacitance Bridge || [https://www.ietlabs.com/pdf/GR_Experimenters/1966/GenRad_Experimenter_June_1966.pdf 1966-06] | ||
|- | |- | ||
| [[1633]] || Incremental Inductance Bridge || 1962-05 | | [[1633]] || Incremental Inductance Bridge || 1962-05 | ||