Scientific Instruments

• Altimeter–An instrument used for measuring altitudes in aircraft.

• Ammeter–An instrument for measuring electric currents in amperes.

• Anemometer–An instrument for measuring the force and velocity of wind.

• Audiometer–An instrument for measuring the intensity of sound.

• Audiophone–An instrument for improving imperfect sense of hearing.

• Barometer–An apparatus used for measuring the atmospheric pressure.

• Calorimeter–An instrument used for measuring quantities of heat.

• Carburettor–An apparatus used in an internal combustion engine for charging air with petrol vapour.

• Cardiograph–A medical instrument for tracing heart movements.

• Chronometer–An instrument kept on board ships for measuring accurate time.

• Crescograph–It is used for measuring growth in plants.

• Dynamo–The origin of electricity in a dynamo is the transformation of mechanical energy into electrical energy.

• Galvanometer–An instrument for measuring electric currents of small magnitude.

• Hydrometer–An instrument used for measuring the specific gravity of liquids.

• Hydrophone–An instrument for recording sound under water.

• Hygrometer–An instrument for measuring humidity in air.

• Lactometer–An Instrument for measuring the relative density of milk.

• Manometer–An instrument for measuring the pressure of a gases.

• Mariner's compass–An apparatus used by sailors to know the direction. The needle always points north-south.

• Microphone–An instrument used for converting sound waves into electrical vibrations and to magnify the sound.

• Microscope–An instrument used for magnifying minute objects by a lens system.

• Odometer–An instrument by which the distance covered by wheeled vehicles is measured.

• Phonograph–An instrument for reproducing sound.

• Photometer–It is an instrument for measuring the intensity of light; a device for comparing the luminous intensity of sources of light.

• Polarimeter–An instrument used for measuring optical activity.

• Pyrometer–An instrument for recording high temperatures from a great distance.

• Radar–It is an abbreviated form of Radio, Angle, Direction and Range. 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–An instrument for measuring the emission of radiant energy.

• Refractometer–An instrument to measure refractive indexes.

• Seismometer or Seismograph–An instrument for recording earthquake shocks.

• Sextant–An instrument used for measuring the altitude of the sun and other heavenly bodies.

• Spectrometer–An instrument for measuring the energy distribution of a particular type of radiation.

• Speedometer–An instrument which indicates the speed at which a vehicle is moving.

• Spherometer–An instrument for measuring curvature of surfaces.