Important measuring devices in automobiles

Speedometer Tachometer fuel gauge water temperature gauge oil pressure gauge Oil Temperature Gauge

Speedometer

The first speedometer was built in 1923 and its basic design didn't change significantly for 60 years. The job of the speedometer is to indicate the speed of your car in miles per hour, kilometers per hour or both.

Types of Speedometers There are two types of speedometers. mechanical speedometer, or the eddy-current speedometer. Electronic.

How Speedometers Work To measure the speed of a car, one must be able to measure the rotational speed of either the wheels. In most cars, measurement takes place in the transmission. drive cable used to measuring the rotational speed generated by the transmission .

Ref: William Harris http://auto. howstuffworks

Tachometer

Tachometer is designed to give the speed of a rotating part in (rpm) For car use the tachometer to measuring the speed of the engine

Ref :http://www.simonfamily.us/FocusEV/TachSpeedo.htm

Fuel gauge

Ref :http://auto.howstuffworks.com/fuel-gauge.htm How Fuel Gauges Work Ref :http://auto.howstuffworks.com/fuel-gauge.htm

water temperature gauge

How water temperature gauge Work

oil pressure gauge

Important of oil gauge If the oil gauge gives very low reading it means that your oil pressure has dropped. When the oil pressure drops the oil is not forced into the nooks and crannies .

Oil Temperature Gauge