General Knowledge on Science : Uses of Important Scientific Instruments



Ammeter: It measures the strength of electric current.

Audiometer: It measures the intensity of sound.

Audiophone: It is used for improving imperfect sense of hearing.

Altimeter: It measures altitudes and used in aircrafts.

Anemometer: It measures force and velocity of wind.

Barograph: It is used for continuous recording of atmosphere pressure.

Barometer:  It measures atmospheric pressure.

Binocular: It is used to view distant objects.

Bolometer: It measures heat radiation.

Calorimeter: It measure quantity of heat.

Carburettor: It is used an internal combustion for charging air with petrol vapour.

Cardiogram: It traces movements of the heart, recorded on a cardiograph.

Chronometer: It determines longitude of a place kept on board ship.

Cinematography: It is an instrument used in cinema making to throw on screen and enlarged image of photograph.

Crescograph: It measures the growth of plants.

Cyclotron: A charged particle accelerator which can accelerate charged particles to high energies.

Dynamo: It converts mechanical energy into electrical energy.

Dynamometer: It measures electrical power.

Electrometer: It measures electricity.

Electroscope: It detects presence of an electrical charge.

Endoscope: It examines internal parts of the body.

Eudiometer: A glass tube for measuring volume changes in chemical reactions between gasses.

Fathometer: It measures the depth of ocean.

Galvanometer: It measures the electric current of low magnitude.

Hydrometer: It measures the specific gravity of liquids.

Hydrometer: It measures humidity in air.

Kymograph: It graphically records physiological movements(blood pressure and heart beat).

Lactometer: It determines the purity of milk.

Manometer: It measures the pressure of gasses.

Mariner's Compass: It is an instruments used by the sailors to determine the direction.

Microphone: It converts the sound waves into electrical vibrations and to magnify the sounds.

Microscope: It is used to obtain magnified view of small objects.

Odeometer: An instrument by which the distance covered by wheeled vehicles is measured.

Phonograph: An instrument for producing sound.

Photometer: The instruments compares the luminous intensity of the source of light.

Periscope: It is used to view objects above sea level.

Potentiometer: It is used for comparing electromotive force cells.

Pyrometer: It measures very high temperature.

Radar: It is used for detecting the direction and range of an approaching plane by means of radio microwaves.

Rain gauge: An apparatus for recording rainfall at a particular place.

Radiometer: It measures the emission of radiant energy.

Refractometer: It measures refractive index.

Saccharimeter: It measures the amount of sugar in the solution.

Seismograph: It measures the intensity of earthquake shocks. 

Salinometer: It determines the salinity of solution.

Stethoscope: An instruments which are used by the doctors to hear and analyze heart and lung sounds.

Thermometer: This is used for the measurement of temperature.

Thermostat: It regulates the temperature at a particular point.

Viscometer: It measures the viscosity of liquids.

Voltmeter: It measures the electric potential between two points.
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