Electronics & Electricity Test Equipment - Modern and Archaic

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Electronics & Electricity Test Equipment - Modern & Archaic Patents and Inventions

Modern Test Equipment
Invention	Inventor	Year	Patent No.
Analog Storage Oscilloscope	Hughes Aircraft	1957
Capacitance Bridge (Type 216)	General Radio Company	1921
Cathode Ray Oscilloscope	Karl Ferdinand Braun	1897
Digital Multimeter	Fluke Electronics	1969
Digital Storage Oscilloscope (DSO)	Nicolet Instrument Technologies	1972
Digital Voltmeter	Andy Kay (Non-Linear Systems)	1954
Electric Usage Meter
Frequency Counter
Logic Analyzer
Magnetometer	Carl Friedrich Gauss	1833
Megger	Evershed & Vignoles	1905
Sampling Oscilloscope	Robert Sugarman (Brookhaven National Laboratories)	1959
Signal Generator
Spectrum Analyzer
Time-Domain Reflectometer
Vacuum Tube Voltmeter (VTVM)	R. A. Heising E.B. Moullin	1915 1921	US1,232,919 GB195,698
Vector Signal Analyzer
Archaic Test Equipment
Invention	Inventor	Year	Patent No.
Abraham Rheograph Prism Synchroscope
Ammeter	Edward Weston	1886
Analog Voltmeter
Astatic Galvanometer	Leopoldo Nobili	1825
Capacity Meter
Capillary Electrometer	Gabriel Lippmann	1873
Carey Foster Bridge	Carey Foster
Current Balance	William Thompson (Lord Kelvin)	1894	GB15,034
D'Arsonval's Galvanometer	Jacques Arsene D'Arsonval	1882
Differential Galvanometer	Antoine Cesar Becquerel	1825
Electrodynamometer	Wilhelm Weber	1848
Electrometer (Electroscope)	Jean Antoine Nollet	1748
Electrostatic Voltmeter	William Thomson	1887	GB18,035
Enclosed Lamp & Scale Galvanometer
Galvanometer	Johann S. Schweigger	1822
Galvanoscope	Johann S. Schweigger	1820
Gold Leaf Electroscope	Abraham Bennet	1786
Gramme Ring Horizontal Coil Galvanometer
Iron Vane Galvanometer
Kohlrausch Bridge	Friedrich Wilhelm Georg Kohlrausch	1887
Lecture Table Galvanometer
Mirror Galvanometer (Reflecting Galvanometer)	William Thompson (Lord Kelvin)	1858	GB329
Ohmmeter
Paschen Type Galvanometer
Pointer Type Galvanometer
Pye Coulomb Balance
Quadrant Electrometer	William Thomson	1853
Sine Galvanometer	Claude Pouillet	1837
String Galvanometer	Willem Einthoven	1901
Sturgeon's Galvanometer	Hans Christian Ørsted (Oersted)	1820
Tangent Galvanometer	Hermann von Helmholtz	1841
Torsion Balance	John Michell Charles-Augustin de Coulomb	1750 1777
Wattmeter
Wheatstone Bridge	Samuel Hunter Christie Sir Charles Wheatstone	1833 1843
Wiedemann's Galvanometer	Gustav H. Wiedemann	1874

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