Scientific Instruments and their uses

Sl.No.	Instrument	Description
01.	Accumulator	It is used to store electrical energy
02.	Altimeter	It measures altitudes and is used in aircraft.
03.	Ammeter	It measures strength of electric current (in amperes).
04.	Anemometer	It measures force and velocity of the wind.
05.	Audiometer	It measures the intensity of sound.
06.	Audiphones	It is used for improving the imperfect sense of hearing.
07.	Barograph	It is used for continuous recording of atmospheric pressure.
08.	Barometer	It measures atmospheric pressure.
09.	Binocular	It is used to view distant objects
10.	Bolometer	It measures heat radiation
11.	Calorimeter	It measures the quantity of heat.
12.	Carburettor	It is used in an internal combustion engine for charging the air with petrol vapor.
13.	Cardiogram	It traces movements of the heart, recorded on a cardiograph.
14.	Chronometer	It determines the longitude of a place kept the onboard ship.
15.	Cinematography	It is an instrument used in cinema making to throw on screen and enlarged image of the photograph.
16.	Colorimeter	An instrument for comparing intensities of color.
17.	Commutator	An instrument to change or remove the direction of an electric current, in dynamo used to convert alternating current into direct current.
18.	Cresco graph	It measures the growth in plants.
19.	Cyclotron	A charged particle accelerator which can accelerate charged particles to high energies.
20.	Dynamo	It converts mechanical energy into electrical energy<
21.	Dynamometer	It measures force, torque, and power
22.	Electroscope	It detects the presence of an electric charge.
23.	Endoscope	It examines internal parts of the body.
24.	Eudiometer	A glass tube for measuring volume changes in chemical reactions between gases.
25.	Fathometer	It measures the depth of the ocean.
26.	Galvanometer	It measures the electric current of low magnitude.
27.	Hydrometer	It measures the specific gravity of liquids.
28.	Hydrophone	It measures sound under water.
29.	Hygrometer	It measures humidity in the air.
30.	Kymograph	It graphically records physiological movements (Blood pressure and heartbeat).
31.	Lactometer	It determines the purity of milk.
32.	Manometer	It measures the pressure of gases.
33.	Mariner’s compass	It is an instrument used by the sailors to determine the direction.
34.	Microphone	It converts the sound waves into electrical vibrations and to magnify the sound.
35.	Microscope	It is used to obtain the magnified view of small objects.
36.	Odometer	An instrument by which the distance covered by wheeled vehicles is measured.
37.	Periscope	It is used to view objects above sea level (used in submarines)
38.	Phonograph	An instrument for producing sound.
39.	Photometer	The instrument compares the luminous intensity of the source of light
40.	Potentiometer	It is used for comparing electromotive force of cells.
41.	Pyrometer	It measures very high temperature.
42.	Quartz Clock	A highly accurate clock used in astronomical observations and other precision work
43.	Radar	Radio, angle, detection, and range is used to detect the direction and range of an approaching airplane by means of radio microwaves
44.	Radiometer	It measures the emission of radiant energy.
45.	Rain Gauge	An apparatus for recording rainfall at a particular place.
46.	Rectifier	An instrument used for the conversion of AC into DC.
47.	Refractometer	It measures refractive index.
48.	Saccharimeter	It measures the amount of sugar in the solution.
49.	Salinometer	It determines the salinity of solution.
50.	Seismograph	It measures the intensity of earthquake shocks.
51.	Sextant	This is used by navigators to find the latitude of a place by measuring the elevation above the horizon of the sun or another star.