Fuel gauge
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In automotive and aerospace engineering, a fuel gauge is an instrument used to indicate the amount of fuel in a fuel tank. In electrical engineering, the term is used for integrated circuits determini
Analog fuel gauge in a 2016 Toyota Corolla featuring a "Moylan Arrow" indicating a fuel filler on the left side of the vehicle
Digital fuel gauge in a 2018 Mazda 3 showing a nearly-empty tank along with a distance to empty display
Typical old-style fuel gauge on a 2008 50 cc Chinese-made scooter, with the internationally used pictogram of a gas pump
Ammeter
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An ammeter is an instrument used to measure the current in a circuit. Electric currents are measured in amperes, hence the name. For direct measurement, the ammeter is connected in series with the cir
Demonstration model of a moving iron ammeter. As the current through the coil increases, the plunger is drawn further into the coil and the pointer deflects to the right.
Ammeter from the University of Dundee Physics Department
Ammeter from the old New York Penn Station terminal service plant in New York City
Face of an older moving iron ammeter with its characteristic non-linear scale. The moving iron ammeter symbol is in the lower-left corner of the meter face.