Henry P. Hall: Difference between revisions
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* [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 | ||
* ''please extend list of patents'' | * ''please extend list of patents'' | ||
==Instruments== | |||
{| class="wikitable sortable" | |||
|- | |||
! Instrument | |||
! Description | |||
! Literature link | |||
|- | |||
| [[1206-B]] || Unit Amplifier || 1953-11 | |||
|- | |||
| [[1212-P2]] || One-Megacycle Filter || 1956-01 | |||
|- | |||
| [[1232-P2]] || Preamplifier || 1967-02 | |||
|- | |||
| [[1265-A]] || Adjustable DC Power Supply || 1962-05 | |||
|- | |||
| [[1417]] || Four-Terminal Capaitance Standard || 1978 catalog | |||
|- | |||
| [[1426]] || Four-Terminal Capaitance Standard || 1968-01 | |||
|- | |||
| [[1433]] || Decade Resistors || 1968-11 | |||
|- | |||
| [[1434]] || Decade Resistors || 1965-10 | |||
|- | |||
| [[1455]] || Decade Voltage Dividers || 1967-04 | |||
|- | |||
| [[1605]] || Impedance Comparator || 1954-04 | |||
|- | |||
| [[1608]] || Impedance Bridge || 1962-03 | |||
|- | |||
| [[1613-A]] || Capacitance Bridge || 1958-02 | |||
|- | |||
| [[1617-A]] || Capacitance Bridge || 1966-06 | |||
|- | |||
| [[1633]] || Incremental Inductance Bridge || 1962-05 | |||
|- | |||
| [[1644]] || Megohm Bridge || 1964-07 | |||
|- | |||
| [[1650-A]] || Impedance Bridge || [https://archive.org/details/sim_general-radio-experimenter_1959-03_33_3 1959-03] | |||
|- | |||
| [[1656]] || Impedance Bridge || 1970-03 | |||
|- | |||
| [[1862-C]] || Megohmmeter || 1963-07 | |||
|- | |||
| [[1863-A]] || Megohmmeter || 1969-03 | |||
|- | |||
| [[1864-A]] || Megohmmeter || 1969-03 | |||
|- | |||
|} | |||
[[Category:General Radio people]] | [[Category:General Radio people]] | ||
Revision as of 05:52, 18 December 2023
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.
He then worked for close to forty years for the same company until his retirement from GenRad in 1993 as a staff scientist.
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.
please expand bio
Links
- IET Labs Application Note, Henry Hall: Father of the Digibridge
- US Patent 2872639, Henry P Hall, Electrical bridge and method. Filed Oct. 10, 1956; Granted Feb. 3, 1959 (describing the Orthonull feature)
- 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
- please extend list of patents
Instruments
| Instrument | Description | Literature link |
|---|---|---|
| 1206-B | Unit Amplifier | 1953-11 |
| 1212-P2 | One-Megacycle Filter | 1956-01 |
| 1232-P2 | Preamplifier | 1967-02 |
| 1265-A | Adjustable DC Power Supply | 1962-05 |
| 1417 | Four-Terminal Capaitance Standard | 1978 catalog |
| 1426 | Four-Terminal Capaitance Standard | 1968-01 |
| 1433 | Decade Resistors | 1968-11 |
| 1434 | Decade Resistors | 1965-10 |
| 1455 | Decade Voltage Dividers | 1967-04 |
| 1605 | Impedance Comparator | 1954-04 |
| 1608 | Impedance Bridge | 1962-03 |
| 1613-A | Capacitance Bridge | 1958-02 |
| 1617-A | Capacitance Bridge | 1966-06 |
| 1633 | Incremental Inductance Bridge | 1962-05 |
| 1644 | Megohm Bridge | 1964-07 |
| 1650-A | Impedance Bridge | 1959-03 |
| 1656 | Impedance Bridge | 1970-03 |
| 1862-C | Megohmmeter | 1963-07 |
| 1863-A | Megohmmeter | 1969-03 |
| 1864-A | Megohmmeter | 1969-03 |