Scientific Instruments and Their Uses
Instrument
|
Use
|
Altimeter
|
An
instrument used in aircrafts for measuring altitudes
|
Ammeter
|
Measures
electric current
|
Anemometer
|
Used to
measure the speed, direction and pressure of the wind.
|
Audiometer
|
Measures
intensity of sound
|
Barograph
|
Continuous
recording of atmospheric pressure
|
Barometer
|
Measures
atmospheric pressure and conditions.
|
Binoculars
|
An
optical instrument used for magnified view of distant objects.
|
Bolometer
|
Measures
infra-red (Heat) radiation.
|
Callipers
|
Measures
diameters of thin cylinder/wire.
|
Calorimeter
|
Measures
quantity of heat
|
Carburettor
|
Used for
charging air with petrol vapours in an internal combustion engine.
|
Cardiogram(ECG)
|
Traces
movements of the heart ,recorded on a Cardiograph
|
Cathetometer
|
Determines
heights and levels
|
Chronometer
|
Determines
longitude of a vessel at sea.
|
Cinematograph
|
Used for
projecting pictures on the screen.
|
Colorimeter
|
Compares
intensity of colours
|
Commutator
|
Used in
generators to reverse the direction of electric current.
|
Crescograph
|
Used for
measuring growth in plants.
|
Cryometer
|
Measurement
of low temperature.
|
Cyclotron
|
Used for
accelerating charged particles in microwave oscillator
|
Dilatometer
|
Measures
change in volume of substances
|
Dynamo
|
Coverts
mechanical energy into electrical energy
|
Electrometer
|
Measures
very small but potential difference in electric currents
|
Electrometer
|
Used for
measuring electrical potential difference.
|
Electroscope
|
Detects
presence of an electric Charge
|
Electron
microscope
|
Used to
obtain a magnifying view of very small objects (20,000 times).
|
Endoscope
|
To
examine internal parts of the body
|
Fathometer
|
Measures
depth of the ocean
|
Fluxmeter
|
Measures
magnetic flux
|
Galvanometer
|
Measures
electric current
|
Gramophone
|
Used to
reproducing recorded sound.
|
Hydrometer
|
Measures
the relative density of liquids
|
Hydrophone
|
Measure
sound under water
|
Hygrometer
|
Used to
measure the moisture content or the humidity of air or any gas.
|
Hygroscope
|
Shows
the changes in atmospheric humidity
|
Hypsometer
|
Determines
boiling point of liquids.
|
Lactometer
|
Measures
the relative density of milk.
|
Machmeter
|
Determines
the speed of an aircraft relative to the speed of sound
|
Manometer
|
Compares
magnetic movement and fields
|
Manometer
|
Used to
measure atmospheric pressure
|
Micrometer
|
Coverts
sound waves into electrical vibration
|
Microphone
|
Converts
sound waves into electrical signals.
|
Microscope
|
Used to
obtain a magnified view of small objects
|
Nephetometer
|
Measures
the scattering of light by particles suspended in a liquid
|
Odometer
|
An
instrument attached to the wheel of a vehicle, to measure the distance
travelled.
|
Ohmmeter
|
Measures
electrical resistance of objects
|
Ondometer
|
Measures
the frequency of electromagnetic waves(radio waves)
|
Optometer
|
Used for
testing the refractive power of the eye.
|
Otoscope
|
Used for
visual examination of the eardrum.
|
Periscope
|
Used to
view objects above sea level (Used in submarines).
|
Phonograph
|
Used for
reproducing sound.
|
Photometer
|
Compares
the luminous intensity of the two sources of light
|
Polygraph
|
It
simultaneously records changed in physiological processes such as heartbeat,
blood pressure & the respiration (used as lie detector)
|
Pyrheliometer
|
Used for
measuring Solar radiation.
|
Pyrometer
|
Measures
very high temperature.
|
Quadrant
|
Measures
altitudes and angles in navigation and astronomy
|
Radar
|
Radio,
Detection and Ranging.
|
Rain
Gauge
|
Measures
Rainfall.
|
Refractometer
|
Measures
salinity of solutions
|
Refractometer
|
Measures
a Refractive Index of a substance.
|
Sextant
|
Used by
navigators to find the latitude of place by measuring the elevation above the
horizon of the sun or another star; also used to measure the height of very
distant objects
|
Sextant
|
Used for
measuring angular distance between two objects.
|
Siesmograph
|
Used for
recording the intensity and origin of earthquakes shocks.
|
Spectroscope
|
Used for
Spectrum analysis.
|
Speedometer
|
An
instrument used for measuring speed of the vehicle.
|
Spherometer
|
Measures
curvature of spherical objects.
|
Sphygmomanometer
|
Measures
blood pressure.
|
Stethoscope
|
Used for
hearing and analysing the sound of Heart.
|
Tachometer
|
To
determine speed, especially the rotational speed of a shaft(rpm)
|
Tangent
galvanometer
|
Measure
the amount of direct current(DC)
|
Telemeter
|
Records
physical happenings at a distant place(space)
|
Telescope
|
Used for
magnified view of distant objects.
|
Thermometer
|
Measures
Temperature
|
Thermostat
|
Automatically
regulates temperatures at a constant point.
|
Tonometer
|
Measures
the pitch of a sound
|
Transformer
|
An
apparatus used for converting high voltage to low and vice-versa without
change in its frequency.
|
Transponder
|
To
receive a signal and transmit a reply immediately in satellites.
|
Venturimeter
|
Measures
the rate of flow of liquids
|
Vernier
|
Measures
Small sub-division of scale.
|
Viscometer
|
Measures
Viscosity of liquid.
|
Voltmeter
|
Used to
measure electric potential difference between two points
|
Wattmeter
|
To
measure electric power
|
Wavemeter
|
To
measure the wavelength of a radiowave(high frequency waves)
|
See also:
» Vitamins
