334 research outputs found
Weston Station Voltmeter
One of the many electrical engineering machines from Weston Electrical Instrument Co. The company was founded by Edward Weston, in 1888, in Newark. Weston was an early competitor of Thomas Edison in electric light but then turned toward innovations in electrical measurement instruments, gaining prominence in scientific and engineering fields. He was also one of the founders of the Newark Technical School, which became NJIT. Weston Hall is named after him and his son, Edward Faraday Weston. In 2016, Weston’s meters were awarded an IEEE Milestone, the plaque for which is viewable inside the NJIT Electrical and Computer Engineering Department. This voltmeter is used for measuring volts, the differences of potential between points of an electrical circuit.https://digitalcommons.njit.edu/instruments/1025/thumbnail.jp
Direct-reading ammeter
This Weston ammeter, model 1, measures electrical current in amps. It was manufactured by the Weston Electrical Instrument Corporation of Newark, NJ. It was calibrated in 1912, before it began to be used, and was guaranteed accurate when used at 72 degrees Fahrenheit.https://digitalcommons.njit.edu/instruments/1073/thumbnail.jp
Direct current milliammeter
This Weston milliammeter measures current at a more sensitive range than the ammeter (a milliamp is one thousandth of an amp). This was the Weston Corp’s first model of milliammeter, produced between the 1910s and 1930s.https://digitalcommons.njit.edu/instruments/1071/thumbnail.jp
Weston Portable Voltmeter (Dissasembled)
Weston Portable Voltmeter disassembled to showcase inner workings.https://digitalcommons.njit.edu/instruments/1040/thumbnail.jp
Weston Portable Voltmeter (Full View)
One of Weston\u27s most impactful inventions, the potable voltmeter design is still used today. Weston patent nos. November 6, 1888; 392,386, 392,387 May 14, 1889; 403311 April 29, 1890; 426,992, 427,022 June 10, 1890; 19,895, 19,896https://digitalcommons.njit.edu/instruments/1037/thumbnail.jp
Top of Weston-Clark standard element
Critical component for the Weston Standard Cellhttps://digitalcommons.njit.edu/instruments/1043/thumbnail.jp
Weston Portable Voltmeter (Top Plate View)
One of Weston\u27s most impactful inventions, the potable voltmeter design is still used today. Weston patent nos. November 6, 1888; 392,386, 392,387 May 14, 1889; 403311 April 29, 1890; 426,992, 427,022 June 10, 1890; 19,895, 19,896https://digitalcommons.njit.edu/instruments/1039/thumbnail.jp
Weston Standard Cell Model 04 (Top View)
The unsaturated Weston Standard Cell Model 4 provides a more accurate standard of voltage compared to saturated cells, but requires more regular maintenance to maintain.https://digitalcommons.njit.edu/instruments/1065/thumbnail.jp
Tangent Galvanometer
Instrument used for the detection of electrical current. Weston patent no. 389,274https://digitalcommons.njit.edu/instruments/1006/thumbnail.jp
Weston Laboratory Standard Type No. 150 Millivoltmeter
This permanent magnet moving coil instrument was widely used as a reference standard of voltage or of current (with a suitable shunt) for the calibration of portable direct current (DC) instruments. The Brooks deflection potentiometer proved capable of greater accuracy and stability and such potentiometers superseded the laboratory standard type for DC measurements early in the 20th century.34 x 40 x 11 c
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