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.