An ammeter is a measuring instrument used to measure the flow of electric current in a circuit. Electric currents are measured in amperes, hence the name. The word ammeter is commonly misspelled or mispronounced as ampmeter by some.The earliest design is the D'Arsonval galvanometer or moving coil ammeter. It uses magnetic deflection, where current passing through a coil causes the coil to move in a magnetic field. The voltage drop across the coil is kept to a minimum to minimize resistance across the ammeter in any circuit into which the it is inserted.To measure larger currents, a resistor called a shunt is placed in parallel with the meter. Most of the current flows through the shunt, and only a small fraction flows through the meter. This allows the meter to measure large currents. Traditionally, the meter used with a shunt has a full-scale deflection (FSD) of 50mV, so shunts are typically designed to produce a voltage drop of 50mV when carrying their full rated current.
Texso Instruments |
Address: 6965 El Camino Real, Suite 105 PMB 526, Carlsbad, California 92009, USA
www.texsoinst.com |
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Phone: +1-(760)-444-0032
Texso Instruments is a manufacture and distributor of electrical test, measurement and safety equipment. We deal with instruments for electrical, construction, maintenance, plant engineers, electrical
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Mitchell Instrument Co. Inc. |
Address: 1570 Cherokee Street, San Marcos, California 92078, USA
www.mitchellinstrument.com |
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Phone: +1-(888)-270 2690
Mitchell Instrument Co. Inc. specializes in electrical test and safety products. We are a test equipment resource for plant engineers, electrical contractors and maintenance professionals. We supply p
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Clark Brothers Instrument Co. |
Address: 56680 Mound Road, Shelby Township, Michigan 48316, USA
www.clarkbrothers.net |
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Phone: +1-(810)-781-7000
Clark Brothers Instrument Co. is a manufacturer and distributor of gauges, speedometers, tachometers and its cables & components, adapters, test & tune equipment and control cables. Our products are w
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D & D Instruments |
Address: 2525 Winter Street NE, Minneapolis, Minnesota 55413, USA
www.ddinstruments.com |
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Phone: +1-(612)-378-1224, 800-766-4243
D & D Instruments distributes automotive & industrial instrumentation and equipment. Our expello air products is designed to protect compressed air systems and prevent equipment breakdown by eliminati
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Technipower Systems |
Address: 14 Commerce Dr., Ste. A / PO Box 222, Danbury, Connecticut 06810, USA
www.technipowerllc.com |
Phone: +1-(203)-748-7001, 800-682-8235
Technipower Systems. is a supplier of power conversion system. We are an ISO 9001 certified company. We provide energy, drive and marine products. Our energy product includes power converter and AC fr
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Steiner Tractor Parts |
Address: 1660 S. M-13, Lennon, Michigan 48449, USA
www.steinertractor.com |
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Phone: +1-(800)-234-3280
Steiner Tractor Parts specializes in offering parts for tractors. Our products include carburetors, water temperature gauges, ignition switches, fuel tank liners, carburetor repair kits, external volt
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Quality Air Services |
Address: 1395 Greg Street, Suite 107, Sparks, Nevada 89431, USA
www.qualityairusa.com |
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Phone: +1-(775)-826-8206
Quality Air Services is a provider of measuring instruments. Our capabilities include ammeters, voltmeter, frequency meter, pneumatic relays, temperature indicator, load indicator, fuel temperature in
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Electric Supply Co., Inc. |
Address: P.O. Box 6427, Raleigh, North Carolina 27628, USA
www.electricsupplycompany.com |
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Phone: +1-(919)-834-7364
Electric Supply Co., Inc. specializes in providing electrical switchgear, controls, building wire, conduit, lighting, fittings and tools. Our products include tap connectors, punches, adjustable socke
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SensorLink Corp. |
Address: 1975 Valley Highway 9 / PO Box 301, Acme, Washington 98220, USA
www.sensorlink.com |
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Phone: +1-(360)-595-1000
SensorLink Corp. is a manufacturer of meters and recorders. Our products include high voltage ammeters, recording ammeters, power factor and VAR recorder, underground recording ammeter, primary power
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Holt Instrument Laboratories |
Address: 126 Mott St. / PO Box 230, Oconto, Wisconsin 54153, USA
www.holtinstrument.com |
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Phone: +1-(920)-834-2222
Holt Instrument Laboratories manufactures AC shunts, current transformers, low thermal converter and thermovoltage converters. AC shunt series includes 50 and 100 amp shunts, a convenient kit containi
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EVERWIN, INC. |
Address: No. 22 Nan-Shih St. Shi-Tsu Dist.,, New Taipei City 22142, Taiwan
www.everwininc.com.tw |
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Phone: +886-(2)-2660 1671
EVERWIN, INC. are manufacturers of auto gauges & instruments in Taiwan. Most products built to fit specialty application for aftermarket. They are shipped to North America. Our products include oil pr
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Milspares Ltd. |
Address: 1 Edison Road, Aylesbury, Buckinghamshire HP19 8TE, United Kingdom
www.milspares.co.uk |
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Phone: +44-(01296)-485481
Milspares Ltd. specializes in providing components for the aviation, marine and military industries. Our products include acoustic systems, adaptors, alternators, ammeters, attenuators, batteries, cab
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Rayleigh Instruments Limited |
Address: Raytel House, Cutlers Road, South Woodham Ferrers, Chelmsford, Essex CM3 5WA, United Kingdom
www.rayleigh.com |
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Phone: +44-(1245)-428 500
Rayleigh Instruments Limited is a manufacturer and supplier of process control instrumentation equipment. We stock an extensive range of products including analogue & digital instrumentation, electric
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J Darbyshire and Son Ltd |
Address: 7 Tudor Close, Poulton le Fylde, Lancashire FY6 7TD, United Kingdom
www.jdhengstler.co.uk |
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Phone: +44-1253 893878
J Darbyshire and Son Ltd manufactures industrial counting & control components comprising of counters, encoders, motor feedback systems, temperature controllers, printer & cutter products and relay te
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Olson Electronics Ltd |
Address: 490 Honeypot Lane, Stanmore, Middlesex HA7 1JX, United Kingdom
www.olson.co.uk |
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Phone: +44-(020)-8905 7273
Olson Electronics Ltd specializes in the design and manufacture of mains distribution panels. We provide switching range of PDU, with individually switched & protected sockets to give the user control
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Yamada Dobby Co. , Ltd |
Address: 35, Shimoshinden, Tamano, Ichinomiya, Aichi 494-8511, Japan
www.yamadadobby.com |
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Phone: +81-(586)-697579
Yamada Dobby Co.,Ltd is a manufacturer of precision stamping press machines for metal stamping industry. We provide stamping of precision components for mobile phone terminals and information technolo
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Mechatronics Automation |
Address: Savoi Verem, Ponda, Goa 403401, India
www.mechatronics.net.in |
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Phone: +91-(832)-6413263
Mechatronics Automation offers a wide range of industrial automation and allied services. We provide electronics products, water quality test instruments, sensors/probes, and analyzers. Our electronic
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General Electronics & Controls |
Address: C/71 GIDC, Odhav, Ambica Nagar Road, Ahmedabad, Gujarat 382 415, India
Phone: +91-(79)-22874299, 22874899
General Electronics & Controls supplies ammeters, analogue, ammeters, digital, audio meters/sound-level/db meters, bridges, kelvin, bridges, wheatstone, educational kits & aids, generators, function,
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