Some Important Measuring Instruments

1. Aerometer :
Instrument for measuring weight and density of air and gases.

2.Altimeter :
Instrument used in aircraft to measure altitude.

3.Ammeter :
Instrument used to measure electrical current flowing in a circuit.

4.Anemometer :
Instrument to measure the force and velocity of wind.

5.Audiometer :
Instrument to measure intensity of sound.

6.Barometer :
Instrument used to measure the atmospheric pressure.

7.Calorimeter :
Instrument used for measuring quantities of heat.

8.Cardiogram :
A medical instrument for tracing heart movements.

9.Crescograph :
Device used for measuring growth in plants. 

10.Dynamo :
Instrument for transforming mechanical energy into electrical energy.

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1.Fathometer :
A depth finder Instrument that uses sound waves to determine the depth of water.

2.Geiger Counter :
Instrument for recording the amount of radiation emitted by a source of radio-activity.

3.Hydrometer :
Instrument used for measuring the  density of liquids

4.Hydrophone :
Instrument used for recording sound under water

5.Hygrometer :
Instrument for measuring  the moisture content in the atmosphere.

6.Kymograph :
Instrument for recording variations in pressure, e.g. in sound waves or in blood within blood vessels, by the trace of a stylus on a rotating.

7.Lactometer :
Aparatus used for measuring the purity of milk.

8.Manometer :
Instruments used to measure pressure are called pressure gauges or vacuum gauges.

9.Odometer :
Instrument by which the distance covered by wheeled vehicles is recorded.

10.Oscillograph :
Instrument for measuring alternating or varying electric current in terms of current and voltage