SCIENTIFIC INSTRUMENTS

Accumulator : Electrical energy is stored

Altimeter : Used in aircraft for measuring altitudes

Ammeter : Measuring the electrical current in amperes

Anemometer : Measuring the strength of winds

Audiometer : Measuring intensity of wind

Barometer : Measuring atmospheric pressure

Binocular : An optical instrument designed for

magnified view of distant objects by both eyes

simultaneously

Cardiogram : For recording the heart movements

Calorimeter : Measuring of quantities of heat

Chronometer : A clock that keeps very accurate time

as the one that is used to determine longitude at sea.

Clinical Thermometer : A thermometer for measuring

the temperature of human body.

Colorimeter : An instrument for comparing intensities

of colour.

Commutator : An instrument to change or remove

the direction of an electric current, in dynamo

used to convert alternating current into direct

current.

Computer : A technical device designed to find

instantaneous solutions of huge complex calculations

based on the information already fed.

Crescograph : For recording the growth of plants

Cyclotron : Studying the properties of atoms by

smashing them

Drinker’s Apparatus : To help breathing in infantile

paralysis

Dynamo : A device for converting mechanical energy

into electrical energy

Dynamometer : An instrument for measuring the

electrical power.

E.C.G. : Device to diagnose heart disfunctioning

E.E.G. : To diagnose disorder in the human brain

Electroscope : An instrument for detecting the presence

of electric charge.

Eudiometer : Measuring volume changes in chemical

reaction between gases

Fathometer : Measuring depth of the ocean

Galvanometer : For detecting and measuring electric

current

Geiger Muller Counter (GM Counter) : An instrument

for detecting and counting atomic particles and

radiations

Hydrometer: For determining the specific gravity of liquids

Hygrometer: For measuring the amount of water vapours

Iron Lung : For artificial respiration

Lactometer : For determining the purity of milk

Manometer : To measure gas pressure

Micrometer : For accurately measuring small distance

or angles

Microscope : An instrument for magnified view of very

small objects.

Odometer : The distance covered by a wheeled vehicle

is recorded

Oscillograph : For recording electrical or mechanical

vibrations

Periscope : It is used in submarine to survey the ships

etc., on the sea while the submarine is under water

Phonograph : For reproducing sound

Photometer : An instrument for comparing the luminous

intensity of the sources of light

Plantimeter : A mechanical integrating instrument to

measure area of a plane surface.

Pyrometer : For measuring high temperature from a

distance

Pyknometer : An instrument used to measure the

density and coefficient of expansion of a liquid

Quadrant : An instrument for measuring altitudes and

angles in navigation and astronomy

Quartz Clock : A highly accurate clock used in

astronomical observations and other precision work

Radar : Radio, angle, detection and range is used to

detect the direction and range of an approaching

aeroplane by means of radio micro waves

Radiometer : An instrument for measuring the emission

of radiant energy

Radio Micrometer : An instrument for measuring

heat radiations

Rain Guage : An instrument for measuring rainfall

Rectifier : An instrument used for the conversion of

AC into DC.

Refractometer : An instrument used to measure the

refractive index of a substance

Resistance Thermometer : Used for determining

the electrical resistance of conductors

Salinometer : A type of hydrometer used to determine

the concentration of salt solutions by measuring their

densities

Seismometer (Seismograph) : An Apparatus for

measuring and recording earthquake shock

Sextant : For guiding ships or surveying land.

Spectroscope: An instrument used for spectrum analysis

Speedometer : It registers the speed at which the

vehicle is moving

Spherometer : For measuring curvature of surfaces

Sphygmomanometer : An instrument used to detect

blood pressure in a human body. It is also called

B.P.Apparatus

Sphygmophone : Instrument with the help of which, a

pulse beat makes a sound

Spring Balance : Useful for measuring weight

Stethoscope : To hear and analyse movements of heart

and lungs

Stop Watch : Recording small intervals of time in the races

Stroboscope : An instrument used for viewing the

objects moving rapidly with a periodic motion and to

see them as if they were at rest.

Tachometer : For measuring speed of aeroplanes and

motor boats

Tangent Galvanometer : An instrument for measuring

the strength of direct current.

Telemeter : For recording physical events happening

at a distance

Teleprinter : A machine which records automatically

messages received on telephone wires

Telescope : For viewing distant objects

Television (T.V.) : For transmitting the visible moving

images by means of wireless waves.

Theodolite : Measuring distances on the surface of the

earth

Thermometer : For recording temperature of a human

body

Thermocouple : Measuring temperature

Thermostat : Automatically controlling the temperature

to a particular degree

Transformer : To convert high voltage to low and vice

versa

Transistor : A small device which may be used to

amplify currents and perform other functions usually

performed by a thermionic valve

Vernier : An adjustable scale for measuring small sub

divisions of scale

Viscometer : For measuring viscosity

Voltmeter : To measure potential difference between

two points

ZETA : Zero Energy Thermometer Assembly for

developing thermonuclear Assembly.