Scientific Instrument and Their Use

Scientific Instrument and Their Use: Here we have a collection of Scientific Instrument, Scientific Apparatus and Equipment And Their Use. Which can be very usefull to remind for general knowledge. scroll down to read more about.

Scientific Instrument and Their Use

Scientific Instrument/Apparatus/ Equipments And Their Use

Altimeter  An apparatus used in aircraft for measuring altitudes.
Ammeter  Is used for to measure intensity of sound.
Anemometer Is an instrument for measuring the force and velocity of wind.
Audiometer  An instrument to measure intensity of sound.
Audiophone  Is an instrument required for improving imperfect sense of hearing.
Barograph  For continuous recording of atmospheric pressure.
Barometer  Is an apparatus used for measuring the atmospheric pressure.
Binoculars  Is an instrument used for seeing distant objects, the rays of light are twice reflected by means of right-angled prisms.
Callipers  A compass with legs for measuring the inside or outside diameter of bodies.
Calorimeter  An instrument used for measuring quantities of heat.
Carburettor  Is an apparatus for charging air with petrol vapours in an internal combustion engine.
Cardiogram  A medical instrument used for tracing the movements of the heart.
Cardiograph  Is a medical instrument for tracing heart movements.
Chronometer  Is an instrument kept on board the ships for measuring accurate time.
Cinematograph  It consists of a series of lenses arranged to throw on a screen an enlarged image of photographs. The lens system which forms the image on the screen is termed the focusing lens.
Commutator  Split ring which forms the main part of a D.C. Dynamo.
Compass needle  For knowing approximately the North-South direction at a place.
Crescograph  Is an instrument for use in recording growth of plants; invented by J.C. Bose.
Dip Circle  It is an instrument used to determine the angle between the direction of the resultant intensity of earth’s field and the horizontal component at a place. This particular angle is know as the dip of that place.
Drinker’s apparatus  To help breathing in infantile paralysis.
Dynamo  The origin of electricity in a Dynamo is the transformation of mechanical energy into electrical energy. It depends on the principle of electro-magnetic induction whereby a current is produced on traversing a magnetic field.
Electroencephalograph (EEG)  It is the technique of recording and interpreting the electrical activity of the brain. Records of the electrical activity of the brain, commonly known as “brain waves”, are called electroencephalograms or electroencephalographs. EEG is the common abbreviation for both the technique and the records.
Epidiascope  For projecting films as well as images of opaque articles on a screen.
Eudiometer  It is a glass tube for measuring volume changes in chemical reactions between gases.
Fathometer  Is an instrument used for measuring depth of the ocean.
Galvanometer  An instrument for measuring currents of small magnitude.
G.M. Counter (Geiger Muller Counter)  This special device is used for detecting the presence of radiation and counting certain atomic particles.
Gramophone  An instrument with which we can reproduce the sound recorded by a suitable recording apparatus. It is fitted with a special type of apparatus known as sound box invented by Berliner.
Gravimeter  Is an instrument for recording measurement under water and to determine the presence of oil deposits under water.
Gyroscope  Is an instrument used to illustrate dynamics of rotating bodies. It is a type of spinning wheel fixed to the axle.
Hydrometer  Is an instrument used for measuring the specific gravity of liquids.
Hydrophone  Is an instrument used for recording sound under water.
Hygrometer  Is an instrument used for measuring humidity in air.
Kymograph Is an instrument used to record graphically various physiological movements i.e., blood pressure, heart beating, study of lungs etc in living beings.
Lactometer Is an apparatus used for measuring the purity of milk.
Manometer  For determining the pressure of a gas.
Mariner’s Compass Is an apparatus which is used to guide the sailors. The needle always points north-south.
Micrometer  Is an instrument used for converting sound i.e., fraction of the lowest division of a given scale.
Microphone Is an instrument used for converting sound waves into electrical vibrations.
Microscope Is an instrument which is used for magnifying minute objects by a lens system.
Microtome Is used for cutting an object into thin parts for microscopic inspection.
Odometer  Is an instrument by virtue of which the distance covered by wheeled vehicles is recorded.
Periscope  It is usually used by the crew of a submarine to survey the ships etc, on the surface of the sea while the submarine is under water. It also enables the sailors to observe objects on the other side of an obstacle without exposing themselves.
Phonograph  Is an instrument used for reproducing sound.
Photometer  Is an apparatus used to compare the illuminating power of two sources of light.
Pipette  It is a glass tube with the aid of which a definite volume of liquid may be transferred.
Potentiometer  Is used for comparing the e.m.f.s, of cells, measurements of the thermal e.m.f.s, large potential differences and currents. It is also used for measuring low resistances.
Psychrometer  Is an instrument for measurement of the humidity of the atmosphere.
Pyrometer  Is an instrument for recording high temperatures from a great distance (i.e., for recording temperature of the sun etc.) by making use of the laws of radiation.
Radar  Radio, Angle, Detection And Range is used to detect the direction and range of  an approaching aeroplane by means of radio microwaves.
Rain Gauge  Is an apparatus for recording of rainfall at a particular place.
Radiometer  Is an instrument for measuring the emission of radiant energy.
Refractometer  Is an instrument to measure refractive indices.
Saccharimeter  Is an instrument for determining the amount of sugar in a solution. It is used in breweries.
Seismometer or Seismograph  Is an instrument used for recording earthquake shocks.
Sextant  Is an instrument invented by John Hadley used for measuring the altitude of the sun and of other inaccessible heavenly bodies.
Spectrometer  (1) It is a type of spectroscope suitable for the precise measurements of refractive indices. (2) An instrument for measuring the energy distribution of a particular type of radiation.
Speedometer  Is an instrument which indicates speed at which a vehicle is moving.
Spherometer  Is an instrument for measuring curvature of surfaces.
Sphygmomanometer  An instrument used for measuring arterial blood-pressure.
Sphygmophone  An instrument, with the help of which a pulse beat makes a sound.
Sphygmoscope  An instrument, by virtue of which, arterial pulsations become visible.
Stereoscope  It is a special type of binocular, through which a double photograph snapped from two different angles by a two-lensed camera is viewed in solid relief.
Stethoscope Is an instrument to hear and analyse movements of heart and lungs.
Stop watch  For recording small intervals of time in the laboratory, in races and other events.
Stroboscope  Is an instrument for viewing objects moving rapidly with a periodic motion and to see them as if they were at rest.
Tachometer  Is an instrument for determining speeds of aeroplanes and motor boats.
Telephone  A device by virtue of which two persons at  two different places can communicate. It consists of two main parts (i) a microphone and (ii) a receiver.
Teleprinter  An instrument which prints automatically messages sent from one place to another, on telegraph lines.
Telescope Is an apparatus used for observing distant objects.
Theodolite  Is an instrument for measuring horizontal and vertical angles.
Thermocouple  An instrument based on thermo-electricity used for measuring temperatures.


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