Scientific Instruments and Uses


  • Aerometer - For measuring weight and density of air and gases.
  • Altimeter  - Used in aircraft to measure altitude.
  • Ammeter Used to measure electrical current flowing in a circuit.
  • Anemometer Instrument to measure the force and velocity of wind.
  • Audiometer Instrument to measure intensity of sound.
  • Barometer Instrument used to measure the atmospheric pressure.
  • Calorimeter Instrument used for measuring quantities of heat.
  • Cardiogram A medical instrument for tracing heart movements.
  • Cresco graph Instrument for use in recording growth of plants.
  • Dynamo Instrument for transforming mechanical energy into electrical energy.
  • Fathometer Instrument used for measuring depth of the ocean.
  • Geiger Counter IUsed for recording the amount of radiation emitted by a source of radio-activity.
  • Hydrometer - Instrument used for measuring the specific gravity of liquids
  • Hydrophone - Used for recording sound under water
  • Hygrometer - For measuring the amount of water vapours (humidity) in the atmosphere.
  • Kymograph -Used to record graphically various physiological movements such as blood pressure, heart beating, study of lungs etc. in living beings.
  • Lactometer - Apparatus used for measuring the purity of milk.
  • Manometer-Apparatus used for determining the pressure of a gas.
  • Odometer Instrument by which the distance covered by wheeled vehicles is recorded.
  • Oscillograph Instrument for recording electrical or mechanical vibrations.
  • Photometer Apparatus used to compare the illuminating power of two sources of light.
  • Pyrometer Instrument for recording high temperatures from a great distance.
  • Radiometer Instrument for measuring the emission of radiant energy.
  • Rain gauge Apparatus for recording of rainfall at a particular piece.
  • Refractometer Instrument to measure refractive indices.
  • Saccharimeter Instrument for determining the amount of sugar in a solution.
  • Sextant An optical instrument used for finding out the altitude of celestial bodies and their angular distances.
  • SphygmomanometerInstrument used for measuring arterial blood pressure.
  • Spherometer Instrument for measuring curvature of surfaces.
  • Seismograph Instrument used for recording earthquake shocks.
  • Tachometer Instrument for determining speeds of aero planes and motor boats.
  • Thermostat Instrument used to regulate the temperature to a particular degree.
  • Transformer An electrical apparatus used to convert high voltage to low and vice versa.
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